/* Nihongo Sekai - Unified Styles */

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Brand Colors */
  --color-primary: #dc2626;
  --color-primary-50: #fef2f2;
  --color-primary-100: #fee2e2;
  --color-primary-600: #dc2626;
  --color-primary-700: #b91c1c;
  --color-primary-800: #991b1b;

  --color-secondary: #ec4899;
  --color-secondary-50: #fdf4f7;
  --color-secondary-100: #fce7ee;
  --color-secondary-600: #db2777;

  --color-accent: #f59e0b;
  --color-accent-50: #fffbeb;
  --color-accent-600: #d97706;

  /* Neutral Colors */
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;

  /* Success, Warning, Error */
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Typography */
  --font-primary:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading:
    "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md:
    0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg:
    0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl:
    0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* Base Typography */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-700);
  background: linear-gradient(
    135deg,
    var(--color-primary-50) 0%,
    var(--color-secondary-50) 100%
  );
  min-height: 100vh;
}

/* ===============================================
   Scroll-On-Scroll Animation
   =============================================== */

/* 1) Khởi trạng thái ban đầu: tàng hình và hơi dịch xuống */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--transition-normal), transform 0.6s var(--transition-normal);
}

    /* 2) Khi element được IntersectionObserver phát hiện: bật visible */
    .animate-on-scroll.visible {
        opacity: 1;
        transform: translateY(0);
    }


/* ==================== LEGAL PAGES STYLING ==================== */

/* Legal Page Layout */
.legal-page {
  background: var(--color-white);
  min-height: 100vh;
}

.legal-hero {
  background: linear-gradient(
    135deg,
    var(--color-primary-600),
    var(--color-primary-800)
  );
  color: var(--color-white);
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  position: relative;
  overflow: hidden;
}

.legal-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M20 20c0 11.046-8.954 20-20 20v20h40V20H20z'/%3E%3C/g%3E%3C/svg%3E")
    repeat;
}

.legal-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.legal-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  font-size: 0.875rem;
  opacity: 0.9;
}

.legal-breadcrumb a {
  color: var(--color-white);
  text-decoration: none;
  transition: var(--transition-fast);
}

.legal-breadcrumb a:hover {
  opacity: 0.8;
}

.legal-breadcrumb-separator {
  opacity: 0.6;
}

.legal-page-title {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
}

.legal-page-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

.legal-last-updated {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  backdrop-filter: blur(10px);
}

/* Legal Content Layout */
.legal-content {
  padding: var(--spacing-3xl) 0;
}

.legal-wrapper {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--spacing-3xl);
  max-width: 1400px;
  margin: 0 auto;
}

.legal-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.legal-nav-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-gray-100);
}

.legal-nav-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-lg);
}

.legal-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.legal-nav-list li {
  margin-bottom: var(--spacing-xs);
}

.legal-nav-link {
  display: block;
  color: var(--color-gray-600);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  transition: var(--transition-fast);
  border-left: 3px solid transparent;
}

.legal-nav-link:hover {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  border-left-color: var(--color-primary-600);
}

.legal-nav-link.active {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  border-left-color: var(--color-primary-600);
  font-weight: 500;
}

/* Legal Main Content */
.legal-main {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-gray-100);
  overflow: hidden;
}

.legal-article {
  padding: var(--spacing-3xl);
}

.legal-section {
  margin-bottom: var(--spacing-3xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 1px solid var(--color-gray-100);
}

.legal-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.legal-section h2 {
  font-family: var(--font-heading);
  font-size: 1.875rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-lg);
  line-height: 1.3;
  position: relative;
}

.legal-section h2::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 30px;
  background: linear-gradient(
    to bottom,
    var(--color-primary-600),
    var(--color-secondary-600)
  );
  border-radius: 2px;
}

.legal-section h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-gray-800);
  margin: var(--spacing-xl) 0 var(--spacing-md) 0;
}

.legal-section h4 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-800);
  margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
}

.legal-section p {
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
  color: var(--color-gray-700);
}

.legal-section ul,
.legal-section ol {
  margin: var(--spacing-lg) 0;
  padding-left: var(--spacing-xl);
}

.legal-section li {
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
}

.legal-section li strong {
  color: var(--color-gray-900);
  font-weight: 600;
}

.legal-link {
  color: var(--color-primary-600);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
}

.legal-link:hover {
  color: var(--color-primary-700);
  text-decoration: underline;
}

/* Info Boxes */
.legal-info-box {
  background: linear-gradient(
    135deg,
    var(--color-primary-50),
    var(--color-secondary-50)
  );
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
  position: relative;
}

.legal-info-box h4 {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary-700);
  margin-bottom: var(--spacing-md);
}

.legal-warning-box {
  background: linear-gradient(
    135deg,
    var(--color-warning-50, #fff8e1),
    var(--color-warning-100, #fff3c4)
  );
  border: 1px solid var(--color-warning-300, #fbbf24);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
}

.legal-warning-box h4 {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-warning-700, #a16207);
  margin-bottom: var(--spacing-md);
}

/* Tables */
.legal-table-wrapper {
  overflow-x: auto;
  margin: var(--spacing-xl) 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
}

.legal-table th {
  background: linear-gradient(
    135deg,
    var(--color-gray-50),
    var(--color-gray-100)
  );
  padding: var(--spacing-lg);
  text-align: left;
  font-weight: 600;
  color: var(--color-gray-900);
  border-bottom: 2px solid var(--color-gray-200);
  font-family: var(--font-heading);
}

.legal-table td {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-100);
  color: var(--color-gray-700);
}

.legal-table tr:hover {
  background: var(--color-gray-50);
}

/* Contact Info */
.legal-contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
}

.legal-contact-card {
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--color-gray-200);
}

.legal-contact-card h4 {
  color: var(--color-primary-600);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

/* ==================== PRICING PAGE STYLING ==================== */

/* Pricing Hero */
.pricing-hero {
  background: linear-gradient(
    135deg,
    var(--color-primary-600),
    var(--color-primary-800)
  );
  color: var(--color-white);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.pricing-hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.pricing-hero .legal-breadcrumb {
  margin-bottom: var(--spacing-lg);
}

.pricing-hero .legal-page-title {
  margin-bottom: var(--spacing-lg);
}

.pricing-hero .legal-page-subtitle {
  margin-bottom: var(--spacing-2xl);
}

/* Billing Toggle */
.billing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.billing-label {
  font-weight: 500;
  font-size: 1.125rem;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 30px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.3);
  transition: var(--transition-normal);
  border-radius: 30px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 4px;
  bottom: 4px;
  background: var(--color-white);
  transition: var(--transition-normal);
  border-radius: 50%;
}

input:checked + .slider {
  background: rgba(255, 255, 255, 0.5);
}

input:checked + .slider:before {
  transform: translateX(30px);
}

.save-badge {
  background: var(--color-accent-600);
  color: var(--color-white);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  margin-left: var(--spacing-sm);
}

/* Pricing Plans */
.pricing-plans {
  padding: var(--spacing-3xl) 0;
  background: var(--color-white);
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1400px;
  margin: 0 auto;
}

.plan-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--color-gray-100);
  padding: var(--spacing-2xl);
  position: relative;
  transition: var(--transition-normal);
}

.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.plan-card.popular {
  border-color: var(--color-primary-600);
  transform: scale(1.05);
}

.plan-card.popular:hover {
  transform: scale(1.05) translateY(-4px);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(
    135deg,
    var(--color-primary-600),
    var(--color-secondary-600)
  );
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
}

/*.plan-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}*/

.plan-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
}

.plan-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.currency {
  font-size: 1.25rem;
  color: var(--color-gray-600);
  margin-right: 2px;
}

.amount {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary-600);
  font-family: var(--font-heading);
}

.period {
  font-size: 1rem;
  color: var(--color-gray-600);
  margin-left: 2px;
}

.plan-description {
  color: var(--color-gray-600);
  line-height: 1.6;
}

.plan-features {
  margin-bottom: var(--spacing-xl);
}

.features-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) 0;
}

.feature-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.feature.included .feature-icon {
  background: var(--color-success);
  color: var(--color-white);
}

.feature.excluded .feature-icon {
  background: var(--color-gray-200);
  color: var(--color-gray-500);
}

.feature.included .feature-text {
  color: var(--color-gray-700);
}

.feature.excluded .feature-text {
  color: var(--color-gray-400);
}

.plan-action {
  text-align: center;
}

.btn-plan {
  width: 100%;
  padding: var(--spacing-lg);
  font-weight: 600;
  font-size: 1.125rem;
}

/* ==================== ENHANCED COURSES & CLASSROOMS STYLING ==================== */

/* Sakura Petal Animation */
@keyframes sakuraPetals {
  0% {
    transform: translateY(-100vh) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}

.sakura-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.sakura-petal {
  position: absolute;
  width: 10px;
  height: 10px;
  background: rgba(255, 182, 193, 0.8);
  border-radius: 50% 0 50% 0;
  animation: sakuraPetals linear infinite;
}

.sakura-petal:nth-child(1) {
  left: 10%;
  animation-duration: 8s;
  animation-delay: 0s;
}
.sakura-petal:nth-child(2) {
  left: 20%;
  animation-duration: 10s;
  animation-delay: 1s;
}
.sakura-petal:nth-child(3) {
  left: 30%;
  animation-duration: 7s;
  animation-delay: 2s;
}
.sakura-petal:nth-child(4) {
  left: 40%;
  animation-duration: 9s;
  animation-delay: 0.5s;
}
.sakura-petal:nth-child(5) {
  left: 50%;
  animation-duration: 11s;
  animation-delay: 1.5s;
}
.sakura-petal:nth-child(6) {
  left: 60%;
  animation-duration: 8s;
  animation-delay: 2.5s;
}
.sakura-petal:nth-child(7) {
  left: 70%;
  animation-duration: 12s;
  animation-delay: 3s;
}
.sakura-petal:nth-child(8) {
  left: 80%;
  animation-duration: 9s;
  animation-delay: 0.8s;
}
.sakura-petal:nth-child(9) {
  left: 90%;
  animation-duration: 10s;
  animation-delay: 1.8s;
}

/* Enhanced Hero Banners with Pink→White Gradient */
.enhanced-hero {
  background: linear-gradient(135deg, #ec4899 0%, #f8fafc 100%);
  color: var(--color-gray-900);
  padding: var(--spacing-3xl) 0;
  position: relative;
  overflow: hidden;
  min-height: 400px;
  display: flex;
  align-items: center;
}

.enhanced-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.enhanced-hero-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, #dc2626, #ec4899);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #dc2626;
}

.enhanced-hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-xl);
}

.enhanced-hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-xl);
}

.enhanced-stat {
  text-align: center;
}

.enhanced-stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary-600);
  display: block;
}

.enhanced-stat-label {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  font-weight: 500;
}

/* Static Search & Filters */
.sticky-search-section,
.static-search-section {
  position: relative;
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.enhanced-search-bar {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.enhanced-search-input {
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-lg) 60px;
  border: 3px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  font-size: 1.125rem;
  font-weight: 500;
  background: var(--color-white);
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.enhanced-search-input:focus {
  outline: none;
  border-color: var(--color-primary-600);
  box-shadow:
    0 0 0 4px rgba(220, 38, 38, 0.1),
    0 8px 25px rgba(220, 38, 38, 0.15);
  transform: translateY(-2px);
}

.enhanced-search-icon {
  position: absolute;
  left: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  color: var(--color-gray-400);
  transition: color 0.3s ease;
}

.enhanced-search-input:focus + .enhanced-search-icon {
  color: var(--color-primary-600);
}

/* Filter Pills */
.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  align-items: center;
}

.filter-pill {
  position: relative;
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-sm) var(--spacing-lg);
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  color: var(--color-gray-700);
}

.filter-pill:hover {
  border-color: var(--color-primary-600);
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.1);
  transform: translateY(-2px);
}

.filter-pill.active {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.filter-pill select {
  background: transparent;
  border: none;
  outline: none;
  color: inherit;
  font-weight: inherit;
  cursor: pointer;
  padding-right: var(--spacing-lg);
}

.filter-pill::after {
  content: "▼";
  position: absolute;
  right: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.75rem;
  opacity: 0.7;
}

.clear-filters-btn {
  background: var(--color-gray-100);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-xl);
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--color-gray-600);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  opacity: 0;
  visibility: hidden;
}

.clear-filters-btn.visible {
  opacity: 1;
  visibility: visible;
}

.clear-filters-btn:hover {
  background: var(--color-error);
  border-color: var(--color-error);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* Enhanced Card Grid (6/page) */
.enhanced-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
}

.enhanced-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--color-gray-100);
  transition: all 0.3s ease;
  position: relative;
}

.enhanced-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  border-color: var(--color-primary-300);
}

/* Card Image with 8px rounded corners */
.enhanced-card-image {
  position: relative;
  height: 200px;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.enhanced-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.enhanced-card:hover .enhanced-card-image img {
  transform: scale(1.1);
}

/* Purchased Badge */
.purchased-badge {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--color-success);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 10;
}

/* Level Badge with Hover Effects */
.level-badge {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  background: rgba(220, 38, 38, 0.9);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 600;
  transition: all 0.3s ease;
  z-index: 10;
}

.enhanced-card:hover .level-badge {
  transform: scale(1.1) translateY(-2px);
  background: var(--color-primary-600);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.4);
}

/* Hover Overlay */
.card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 5;
}

.enhanced-card:hover .card-overlay {
  opacity: 1;
}

.overlay-button {
  background: var(--color-white);
  color: var(--color-primary-600);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.overlay-button:hover {
  background: var(--color-primary-600);
  color: var(--color-white);
  transform: scale(1.05);
}

/* Card Content */
.enhanced-card-content {
  padding: var(--spacing-xl);
}

.enhanced-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
}

.enhanced-card-description {
  color: var(--color-gray-600);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Instructor Avatar (Clickable) */
.instructor-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: background 0.3s ease;
}

.instructor-info:hover {
  background: var(--color-gray-50);
}

.instructor-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary-600);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.75rem;
}

.instructor-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-700);
}

/* Stats Row */
.card-stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-gray-100);
}

.stats-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.stat-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.rating-display {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.stars {
  color: #fbbf24;
  font-size: 0.875rem;
}

/* Progress Bar for Classrooms */
.enrollment-progress {
  width: 100%;
  height: 6px;
  background: var(--color-gray-200);
  border-radius: 3px;
  overflow: hidden;
  margin: var(--spacing-sm) 0;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--color-primary-600),
    var(--color-secondary-600)
  );
  border-radius: 3px;
  transition: width 0.5s ease;
  position: relative;
}

.progress-bar.animated::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  animation: progressShimmer 2s infinite;
}

/* Pill-style Pagination */
.enhanced-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin: var(--spacing-3xl) 0;
}

.pagination-btn {
  padding: var(--spacing-md) var(--spacing-lg);
  border: 2px solid var(--color-gray-200);
  background: var(--color-white);
  color: var(--color-gray-600);
  border-radius: var(--radius-xl);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--color-primary-600);
  color: var(--color-primary-600);
  transform: translateY(-2px);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--color-gray-200);
  background: var(--color-white);
  color: var(--color-gray-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.pagination-number:hover {
  border-color: var(--color-primary-600);
  color: var(--color-primary-600);
  transform: scale(1.1);
}

.pagination-number.active {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

/* ==================== DETAIL PAGES STYLING ==================== */

/* Sticky Shrinking Video Header */
.sticky-video-header {
  position: sticky;
  top: 80px;
  z-index: 50;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  margin-bottom: var(--spacing-xl);
  transition: all 0.3s ease;
}

.sticky-video-header.shrunk {
  transform: scale(0.8);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.video-preview {
  position: relative;
  width: 100%;
  height: 400px;
  background: linear-gradient(
    135deg,
    var(--color-gray-800),
    var(--color-gray-900)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: height 0.3s ease;
}

.sticky-video-header.shrunk .video-preview {
  height: 250px;
}

.video-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: rgba(220, 38, 38, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.video-play-button:hover {
  background: var(--color-primary-600);
  transform: translate(-50%, -50%) scale(1.1);
}

/* Tab Navigation with Underline Animation */
.tab-navigation {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  padding: 0 var(--spacing-xl);
  position: sticky;
  top: 160px;
  z-index: 40;
}

.tab-list {
  display: flex;
  gap: var(--spacing-2xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.tab-button {
  background: none;
  border: none;
  padding: var(--spacing-lg) 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-gray-600);
  cursor: pointer;
  position: relative;
  transition: color 0.3s ease;
}

.tab-button.active {
  color: var(--color-primary-600);
}

.tab-button::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-primary-600);
  transition: width 0.3s ease;
}

.tab-button.active::after {
  width: 100%;
}

.tab-button:hover {
  color: var(--color-primary-600);
}

/* Two-column Layout */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--spacing-3xl);
  margin-top: var(--spacing-xl);
}

.detail-content {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--color-gray-100);
  position: relative;
}

.detail-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--spacing-lg);
  width: 4px;
  height: 40px;
  background: linear-gradient(
    to bottom,
    var(--color-primary-600),
    var(--color-secondary-600)
  );
  border-radius: 2px;
}

.detail-sidebar {
  position: sticky;
  top: 200px;
  height: fit-content;
}

.sidebar-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--color-gray-100);
  margin-bottom: var(--spacing-xl);
}

.cta-button {
  width: 100%;
  background: var(--color-primary-600);
  color: var(--color-white);
  border: none;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.cta-button:hover {
  background: var(--color-primary-700);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(220, 38, 38, 0.3);
}

/* Threaded Discussion for Classrooms */
.discussion-thread {
  margin-top: var(--spacing-xl);
}

.discussion-header {
  margin-bottom: var(--spacing-xl);
}

.thread-post {
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border-left: 4px solid var(--color-primary-600);
}

.post-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.post-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary-600);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
}

.post-meta {
  flex: 1;
}

.post-author {
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.post-timestamp {
  font-size: 0.75rem;
  color: var(--color-gray-500);
}

.post-content {
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.post-actions {
  display: flex;
  gap: var(--spacing-md);
}

.post-action {
  background: none;
  border: none;
  color: var(--color-gray-500);
  font-size: 0.875rem;
  cursor: pointer;
  transition: color 0.3s ease;
}

.post-action:hover {
  color: var(--color-primary-600);
}

.thread-replies {
  margin-left: var(--spacing-3xl);
  margin-top: var(--spacing-lg);
}

.thread-reply {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--color-gray-200);
}

/* ==================== ADMIN LOGOUT MODAL ==================== */
.admin-logout-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
}

.admin-logout-modal .modal-overlay {
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.admin-logout-modal .modal-content {
  background: white;
  border-radius: 12px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
  max-width: 420px;
  width: 100%;
  overflow: hidden;
  animation: slideInFromTop 0.3s ease;
}

.admin-logout-modal .modal-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-logout-modal .modal-header h3 {
  margin: 0;
  color: var(--color-gray-900);
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-gray-400);
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: var(--color-gray-600);
}

.admin-logout-modal .modal-body {
  padding: var(--spacing-lg);
}

.admin-logout-modal .modal-body p {
  margin: 0;
  color: var(--color-gray-600);
  line-height: 1.6;
}

.admin-logout-modal .modal-actions {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-gray-200);
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
}

.btn-danger {
  background: var(--color-error);
  color: white;
  border: 1px solid var(--color-error);
}

.btn-danger:hover {
  background: #dc2626;
  border-color: #dc2626;
}

/* ==================== ENHANCED CHARTS STYLING ==================== */
.charts-section {
  margin-top: var(--spacing-2xl);
  background: white;
  border-radius: 12px;
  padding: var(--spacing-xl);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.charts-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-200);
}

.charts-header h2 {
  margin: 0;
  color: var(--color-gray-900);
  font-size: 1.5rem;
  font-weight: 600;
}

.chart-controls {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.chart-filter {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-gray-300);
  border-radius: 6px;
  background: white;
  font-size: 0.875rem;
  color: var(--color-gray-700);
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.chart-filter:focus {
  outline: none;
  border-color: var(--color-primary-600);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

.chart-container {
  background: var(--color-gray-50);
  border-radius: 8px;
  padding: var(--spacing-lg);
  border: 1px solid var(--color-gray-200);
}

.chart-container.full-width {
  grid-column: 1 / -1;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.chart-header h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

.chart-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary-600);
}

.chart-container canvas {
  width: 100% !important;
  height: 200px !important;
}

.chart-container.full-width canvas {
  height: 300px !important;
}

/* Export Button */
.export-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary-600);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.export-btn:hover {
  background: var(--color-primary-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.25);
}

.export-btn svg {
  width: 16px;
  height: 16px;
}

/* ==================== ADMIN MANAGEMENT INTERFACES ==================== */
.management-section {
  padding: var(--spacing-xl);
  background: white;
  border-radius: 12px;
  margin-bottom: var(--spacing-xl);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.management-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-200);
}

.header-left h2 {
  margin: 0 0 var(--spacing-xs) 0;
  color: var(--color-gray-900);
  font-size: 1.5rem;
  font-weight: 600;
}

.header-left p {
  margin: 0;
  color: var(--color-gray-600);
  font-size: 0.875rem;
}

.header-actions {
  display: flex;
  gap: var(--spacing-md);
}

.management-filters {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--color-gray-50);
  border-radius: 8px;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.filter-group {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  align-items: center;
}

.filter-select,
.search-input,
.date-input {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-gray-300);
  border-radius: 6px;
  background: white;
  font-size: 0.875rem;
  color: var(--color-gray-700);
  transition: border-color 0.2s ease;
  min-width: 120px;
}

.search-input {
  min-width: 200px;
}

.filter-select:focus,
.search-input:focus,
.date-input:focus {
  outline: none;
  border-color: var(--color-primary-600);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.filter-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.data-table-container {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
  margin-bottom: var(--spacing-xl);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th {
  background: var(--color-gray-50);
  color: var(--color-gray-900);
  font-weight: 600;
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--color-gray-200);
  cursor: pointer;
  transition: background-color 0.2s ease;
  white-space: nowrap;
}

.data-table th:hover {
  background: var(--color-gray-100);
}

.data-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-gray-100);
  vertical-align: middle;
}

.data-table tr:hover {
  background: var(--color-gray-25);
}

.sort-icon {
  margin-left: var(--spacing-xs);
  font-size: 0.75rem;
  color: var(--color-gray-400);
}

.level-badge,
.status-badge,
.type-badge {
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.level-badge.beginner {
  background: #dcfce7;
  color: #15803d;
}

.level-badge.intermediate {
  background: #fef3c7;
  color: #d97706;
}

.level-badge.advanced {
  background: #fee2e2;
  color: #dc2626;
}

.status-badge.active,
.status-badge.published {
  background: #dcfce7;
  color: #15803d;
}

.status-badge.inactive,
.status-badge.draft {
  background: #f3f4f6;
  color: #6b7280;
}

.status-badge.suspended,
.status-badge.archived {
  background: #fee2e2;
  color: #dc2626;
}

.status-badge.pending {
  background: #fef3c7;
  color: #d97706;
}

.status-badge.completed {
  background: #dcfce7;
  color: #15803d;
}

.status-badge.failed,
.status-badge.refunded {
  background: #fee2e2;
  color: #dc2626;
}

.type-badge.course {
  background: #dbeafe;
  color: #1d4ed8;
}

.type-badge.classroom {
  background: #fce7f3;
  color: #be185d;
}

.progress-bar {
  position: relative;
  width: 80px;
  height: 20px;
  background: var(--color-gray-200);
  border-radius: 10px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary-600);
  border-radius: 10px;
  transition: width 0.3s ease;
}

.progress-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.75rem;
  font-weight: 500;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.action-buttons {
  display: flex;
  gap: var(--spacing-xs);
}

.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-gray-300);
  background: white;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--color-gray-600);
}

.btn-icon:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
  color: var(--color-gray-800);
}

.btn-icon.danger {
  border-color: var(--color-error);
  color: var(--color-error);
}

.btn-icon.danger:hover {
  background: var(--color-error);
  color: white;
}

.pagination-container {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-xl);
}

.pagination {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.page-numbers {
  display: flex;
  gap: var(--spacing-xs);
}

.page-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-gray-300);
  background: white;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-700);
}

.page-btn:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
}

.page-btn.active {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
  color: white;
}

.page-btn.active:hover {
  background: var(--color-primary-700);
  border-color: var(--color-primary-700);
}

/* Responsive Design for Management Tables */
@media (max-width: 1200px) {
  .data-table {
    font-size: 0.8rem;
  }

  .data-table th,
  .data-table td {
    padding: var(--spacing-sm);
  }

  .action-buttons {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .management-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  .management-filters {
    flex-direction: column;
    align-items: flex-start;
  }

  .filter-group {
    width: 100%;
    flex-direction: column;
  }

  .filter-select,
  .search-input,
  .date-input {
    width: 100%;
    min-width: auto;
  }

  .data-table-container {
    overflow-x: auto;
  }

  .data-table {
    min-width: 800px;
  }

  .pagination {
    flex-wrap: wrap;
    justify-content: center;
  }
}
/* ================= MOBILE RESPONSIVE FOR LOGIN PAGE ================= */
@media (max-width: 768px) {
    /* 1) Đổi .auth-card từ 2 cột -> 1 cột */
    .auth-card {
        display: flex !important;
        flex-direction: column !important;
        max-width: 100%;
    }
    /* 2) Benefits lên trước form (tuỳ chỉnh nếu bạn muốn form lên trên) */
    .auth-benefits-column {
        order: -1;
    }
    /* 3) Thu nhỏ padding hai bên để vừa màn hình */
    .auth-main {
        padding: var(--spacing-2xl) var(--spacing-md) !important;
    }

    .auth-form-column,
    .auth-benefits-column {
        padding: var(--spacing-2xl) var(--spacing-md) !important;
    }
    /* 4) Thay đổi font-size cho tiêu đề & text cho gọn */
    .auth-title {
        font-size: 1.75rem;
    }

    .auth-subtitle,
    .auth-benefits-column p {
        font-size: 0.9rem;
    }

    .benefit-item h5 {
        font-size: 1rem;
    }
    /* 5) Buttons ngang full-width, co padding nhỏ lại */
    .btn,
    .btn-outline-danger {
        width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
    }
    /* 6) Thu gọn khoảng cách giữa các mục benefits */
    .benefits-list .benefit-item {
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
    /* 7) Ẩn bớt ::before (pattern) nếu cần giảm load */
    .auth-benefits-column::before {
        display: none;
    }
}


/* ==================== OTP VERIFICATION STYLING ==================== */

.otp-page {
  min-height: 100vh;
  background: linear-gradient(
    135deg,
    var(--color-primary-50) 0%,
    var(--color-secondary-50) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.otp-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  padding: var(--spacing-3xl);
  max-width: 500px;
  width: 100%;
  text-align: center;
}

.otp-header {
  margin-bottom: var(--spacing-3xl);
}

.otp-title {
  font-family: var(--font-heading);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
}

.otp-subtitle {
  color: var(--color-gray-600);
  line-height: 1.5;
  margin-bottom: var(--spacing-lg);
}

.otp-email {
  color: var(--color-primary-600);
  font-weight: 600;
}

/* 4-Box OTP Input */
.otp-input-group {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}

.otp-input {
  width: 60px;
  height: 60px;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  text-align: center;
  font-size: 1.5rem;
  font-weight: 600;
  background: var(--color-white);
  transition: all 0.3s ease;
}

.otp-input:focus {
  outline: none;
  border-color: var(--color-primary-600);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
  transform: scale(1.05);
}

.otp-input.filled {
  border-color: var(--color-primary-600);
  background: var(--color-primary-50);
  color: var(--color-primary-700);
}

.otp-input.error {
  border-color: var(--color-error);
  background: #fef2f2;
  color: var(--color-error);
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}

/* Countdown Timer */
.otp-countdown {
  margin-bottom: var(--spacing-xl);
}

.countdown-text {
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-sm);
}

.countdown-timer {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary-600);
}

.countdown-timer.expired {
  color: var(--color-error);
}

.resend-section {
  margin-top: var(--spacing-lg);
}

.resend-button {
  background: none;
  border: none;
  color: var(--color-primary-600);
  font-weight: 500;
  cursor: pointer;
  text-decoration: underline;
  font-size: 0.875rem;
  transition: color 0.3s ease;
}

.resend-button:hover {
  color: var(--color-primary-700);
}

.resend-button:disabled {
  color: var(--color-gray-400);
  cursor: not-allowed;
  text-decoration: none;
}

/* Success/Error Messages */
.auth-message {
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

.auth-message.success {
  background: #f0f9ff;
  color: #0369a1;
  border: 1px solid #bae6fd;
}

.auth-message.error {
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
}

.auth-message.warning {
  background: #fffbeb;
  color: #d97706;
  border: 1px solid #fed7aa;
}

/* Role Selection (for registration) */
.role-selection {
  margin-bottom: var(--spacing-xl);
}

.role-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.role-option {
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--color-white);
}

.role-option:hover {
  border-color: var(--color-primary-300);
  background: var(--color-primary-50);
}

.role-option.selected {
  border-color: var(--color-primary-600);
  background: var(--color-primary-50);
}

.role-icon {
  width: 60px;
  height: 60px;
  background: var(--color-primary-100);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  color: var(--color-primary-600);
  font-size: 1.5rem;
}

.role-option.selected .role-icon {
  background: var(--color-primary-600);
  color: var(--color-white);
}

.role-title {
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
}

.role-description {
  color: var(--color-gray-600);
  font-size: 0.875rem;
  line-height: 1.5;
}

/* ==================== ADMIN DASHBOARD STYLING ==================== */

/* Admin Layout */
.admin-layout {
  display: flex;
  min-height: 100vh;
  background: #f8fafc;
}

/* Admin Sidebar */
.admin-sidebar {
  width: 280px;
  background: var(--color-white);
  border-right: 1px solid var(--color-gray-200);
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  transition: transform 0.3s ease;
}

.admin-sidebar.collapsed {
  transform: translateX(-100%);
}

.sidebar-header {
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--color-gray-200);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-900);
}

.sidebar-brand .brand-icon {
  font-size: 1.5rem;
  color: var(--color-primary-600);
}

.sidebar-title {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  font-weight: 500;
  margin-top: var(--spacing-xs);
}

/* Sidebar Navigation */
.sidebar-nav {
  padding: var(--spacing-lg) 0;
}

.nav-section {
  margin-bottom: var(--spacing-xl);
}

.nav-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0 var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.nav-items {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin-bottom: var(--spacing-xs);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-xl);
  color: var(--color-gray-700);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  border-right: 3px solid transparent;
}

.nav-link:hover {
  background: var(--color-gray-50);
  color: var(--color-primary-600);
}

.nav-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.nav-badge {
  background: var(--color-primary-600);
  color: var(--color-white);
  font-size: 0.75rem;
  padding: 0.125rem 0.375rem;
  border-radius: 0.75rem;
  margin-left: auto;
}

/* Admin Main Content */
.admin-main {
  flex: 1;
  min-height: 100vh;
  background: #f8fafc;
  transition: margin-left 0.3s ease;
}

.admin-main.expanded {
  margin-left: 0;
}

/* Admin Header */
.admin-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--spacing-lg) var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.admin-header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--color-gray-600);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.sidebar-toggle:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-900);
}

.sidebar-toggle svg {
  width: 20px;
  height: 20px;
}

.page-title {
  font-family: var(--font-heading);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin: 0;
}

.admin-header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.admin-user-menu {
  position: relative;
}

.admin-user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary-600);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid var(--color-white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.admin-user-avatar:hover {
  transform: scale(1.05);
}

.admin-logout-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-error);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-left: var(--spacing-md);
}

.admin-logout-btn:hover {
  background: #dc2626;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.admin-logout-btn svg {
  stroke-width: 2;
}

/* Admin Content */
.admin-content {
  padding: var(--spacing-3xl);
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

/* Stats Cards */
.stats-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-gray-200);
  transition: all 0.3s ease;
}

.stats-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stats-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.stats-card-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stats-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.stats-card-icon.revenue {
  background: var(--color-success-100, #dcfce7);
  color: var(--color-success-600, #16a34a);
}

.stats-card-icon.users {
  background: var(--color-primary-100);
  color: var(--color-primary-600);
}

.stats-card-icon.courses {
  background: var(--color-accent-100, #fef3c7);
  color: var(--color-accent-600, #d97706);
}

.stats-card-icon.classrooms {
  background: var(--color-secondary-100);
  color: var(--color-secondary-600);
}

.stats-card-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.stats-card-change {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  font-weight: 500;
}

.stats-card-change.positive {
  color: var(--color-success-600, #16a34a);
}

.stats-card-change.negative {
  color: var(--color-error);
}

.stats-card-change svg {
  width: 16px;
  height: 16px;
}

/* Chart Cards */
.chart-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-gray-200);
  margin-bottom: var(--spacing-xl);
}

.chart-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-200);
}

.chart-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

.chart-card-subtitle {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  margin-top: var(--spacing-xs);
}

.chart-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.chart-filter {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background: var(--color-white);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.chart-filter:hover {
  border-color: var(--color-primary-300);
}

.chart-filter:focus {
  outline: none;
  border-color: var(--color-primary-600);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.export-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary-600);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.export-btn:hover {
  background: var(--color-primary-700);
  transform: translateY(-1px);
}

.export-btn svg {
  width: 16px;
  height: 16px;
}

/* Chart Container */
.chart-container {
  position: relative;
  height: 300px;
  margin-bottom: var(--spacing-lg);
}

.chart-canvas {
  width: 100% !important;
  height: 100% !important;
}

/* Data Table */
.data-table {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-gray-200);
}

.data-table-header {
  background: var(--color-gray-50);
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.data-table-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

.data-table-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.table-responsive {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th {
  background: var(--color-gray-50);
  padding: var(--spacing-lg);
  text-align: left;
  font-weight: 600;
  color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-200);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.table td {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-100);
  color: var(--color-gray-700);
  font-size: 0.875rem;
}

.table tr:hover {
  background: var(--color-gray-50);
}

.table tr:last-child td {
  border-bottom: none;
}

/* Status Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-badge.completed {
  background: var(--color-success-100, #dcfce7);
  color: var(--color-success-800, #166534);
}

.status-badge.pending {
  background: var(--color-warning-100, #fef3c7);
  color: var(--color-warning-800, #92400e);
}

.status-badge.cancelled {
  background: var(--color-error-100, #fee2e2);
  color: var(--color-error-800, #991b1b);
}

.status-badge.active {
  background: var(--color-primary-100);
  color: var(--color-primary-800);
}

/* Quick Actions */
.quick-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.action-btn {
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--color-gray-200);
  background: var(--color-white);
  color: var(--color-gray-600);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
}

.action-btn:hover {
  background: var(--color-gray-50);
  color: var(--color-gray-900);
}

.action-btn.primary {
  background: var(--color-primary-600);
  color: var(--color-white);
  border-color: var(--color-primary-600);
}

.action-btn.primary:hover {
  background: var(--color-primary-700);
}

.action-btn svg {
  width: 14px;
  height: 14px;
}

/* Loading States */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-gray-200);
  border-top: 3px solid var(--color-primary-600);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .legal-wrapper {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .legal-sidebar {
    position: static;
  }

  .legal-nav-card {
    margin-bottom: var(--spacing-xl);
  }
}

/* ==================== ENHANCED COURSES SECTION ==================== */

/* Modern Page Background */
.courses-page {
  background: #f9fafb;
  min-height: 100vh;
}

/* Enhanced Page Header */
.courses-hero {
  background: linear-gradient(
    135deg,
    var(--color-primary-600),
    var(--color-primary-800)
  );
  color: var(--color-white);
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  position: relative;
  overflow: hidden;
}

.courses-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M20 20c0 11.046-8.954 20-20 20v20h40V20H20z'/%3E%3C/g%3E%3C/svg%3E")
    repeat;
  animation: backgroundFloat 20s ease-in-out infinite;
}

.courses-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 70%
  );
  opacity: 0.7;
}

@keyframes backgroundFloat {
  0%,
  100% {
    transform: translateX(0) translateY(0);
  }
  33% {
    transform: translateX(-10px) translateY(-5px);
  }
  66% {
    transform: translateX(10px) translateY(5px);
  }
}

.courses-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.courses-page-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.courses-page-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: var(--spacing-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.courses-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-3xl);
  flex-wrap: wrap;
}

.courses-stat {
  text-align: center;
}

.courses-stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-heading);
}

.courses-stat-label {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Revolutionary Search & Filter Section */
.modern-search-section {
  background: var(--color-white);
  padding: var(--spacing-2xl) 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 10;
}

.hero-search-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.hero-search-bar {
  position: relative;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
}

.hero-search-input {
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-lg) 60px;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  font-size: 1.125rem;
  background: var(--color-white);
  transition: var(--transition-normal);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.hero-search-input:focus {
  outline: none;
  border-color: var(--color-primary-600);
  box-shadow:
    0 0 0 3px rgba(220, 38, 38, 0.1),
    0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.hero-search-icon {
  position: absolute;
  left: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  color: var(--color-gray-400);
}

/* Modern Filter Chips */
.filter-chips-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  overflow-x: auto;
  padding-bottom: var(--spacing-sm);
}

.filter-chip {
  position: relative;
  background: var(--color-gray-100);
  border: 2px solid transparent;
  border-radius: 24px;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray-700);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.filter-chip:hover {
  background: var(--color-gray-200);
  border-color: var(--color-primary-600);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.15);
}

.filter-chip.active {
  background: var(--color-primary-600);
  color: var(--color-white);
  border-color: var(--color-primary-700);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.25);
}

.filter-chip select {
  background: transparent;
  border: none;
  color: inherit;
  font-weight: inherit;
  cursor: pointer;
  outline: none;
  appearance: none;
  padding-right: var(--spacing-lg);
  min-width: 80px;
}

.filter-chip:hover select {
  color: inherit;
}

.filter-chip::after {
  content: "▼";
  font-size: 0.75rem;
  opacity: 0.7;
  transition: transform 0.2s ease;
}

.filter-chip:hover::after {
  transform: translateY(-1px);
}

/* Enhanced dropdown behavior */
.filter-chip select:hover {
  cursor: pointer;
}

.filter-chip select option {
  background: var(--color-white);
  color: var(--color-gray-800);
  padding: var(--spacing-sm);
}

.clear-all-btn {
  background: var(--color-white);
  border: 2px solid var(--color-gray-300);
  color: var(--color-gray-700);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  opacity: 0;
  transform: translateX(20px);
  margin-left: auto;
  min-width: 120px;
}

.clear-all-btn.visible {
  opacity: 1;
  transform: translateX(0);
}

.clear-all-btn:hover {
  background: var(--color-gray-50);
  border-color: var(--color-primary-600);
  color: var(--color-primary-600);
}

/* Enhanced Courses Main Section */
.courses-main {
  background: #f9fafb;
  padding: var(--spacing-2xl) 0 var(--spacing-3xl);
}

.courses-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Modern View Controls & Results */
.courses-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-2xl);
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.results-summary {
  font-size: 1.125rem;
  color: var(--color-gray-700);
  font-weight: 500;
}

.view-toggle {
  display: flex;
  gap: var(--spacing-sm);
  background: var(--color-gray-100);
  padding: 4px;
  border-radius: var(--radius-md);
}

.view-toggle-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  color: var(--color-gray-600);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.view-toggle-btn.active {
  background: var(--color-primary-600);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.view-toggle-btn svg {
  width: 18px;
  height: 18px;
}

/* Revolutionary Course Cards */
.courses-grid-container {
  transition: var(--transition-normal);
}

/* Grid View */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 32px;
}

.course-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: var(--transition-normal);
  position: relative;
  border: 1px solid var(--color-gray-100);
}

.course-card:hover {
  transform: translateY(-8px);
  box-shadow:
    0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.course-card-image {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.course-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

.course-card:hover .course-card-image img {
  transform: scale(1.05);
}

.course-price-badge {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: var(--color-primary-600);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1.125rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.course-level-badge {
  position: absolute;
  top: var(--spacing-lg);
  left: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-gray-800);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  transform: translateY(0);
}

.course-card:hover .course-level-badge {
  transform: translateY(-2px) scale(1.05);
  background: var(--color-primary-600);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.course-card-content {
  padding: var(--spacing-xl);
}

.course-card-title {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card-description {
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

.course-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.course-rating {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.course-stars {
  display: flex;
  color: #fbbf24;
}

.course-card-actions {
  display: flex;
  gap: var(--spacing-md);
}

.course-view-btn {
  flex: 1;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 2px solid var(--color-primary-600);
  background: transparent;
  color: var(--color-primary-600);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.course-card:hover .course-view-btn {
  background: var(--color-primary-600);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

/* List View */
.courses-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.course-card-list {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: var(--transition-normal);
  display: grid;
  grid-template-columns: 300px 1fr;
  border: 1px solid var(--color-gray-100);
}

.course-card-list:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.course-list-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.course-list-content {
  padding: var(--spacing-xl);
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: var(--spacing-xl);
  align-items: start;
}

.course-list-info h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
}

.course-list-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.course-list-sidebar {
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.course-list-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary-600);
  font-family: var(--font-heading);
}

/* Course Detail Page */
.course-detail-page {
  background: #f9fafb;
  min-height: 100vh;
}

.course-detail-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-lg);
}

.course-detail-layout {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--spacing-3xl);
  align-items: start;
}

.course-detail-main {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.course-detail-video {
  position: relative;
  width: 100%;
  height: 400px;
  background: linear-gradient(
    135deg,
    var(--color-gray-900),
    var(--color-gray-800)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-xl);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-normal);
}

.course-detail-video:hover {
  transform: scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.course-detail-sidebar {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: var(--spacing-xl);
  height: fit-content;
  border: 1px solid var(--color-gray-100);
}

.course-detail-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.course-detail-subtitle {
  font-size: 1.25rem;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-xl);
  line-height: 1.5;
}

.course-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
  padding: var(--spacing-lg);
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
}

.course-fact {
  text-align: center;
}

.course-fact-label {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-xs);
}

.course-fact-value {
  font-weight: 600;
  color: var(--color-gray-900);
  font-size: 1.125rem;
}

.course-enroll-btn {
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--color-primary-600);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-lg);
  font-size: 1.25rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.course-enroll-btn:hover {
  background: var(--color-primary-700);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(220, 38, 38, 0.3);
}

.course-detail-tabs {
  border-bottom: 1px solid var(--color-gray-200);
  position: sticky;
  top: 0;
  background: var(--color-white);
  z-index: 20;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.course-tabs {
  display: flex;
  gap: 0;
}

.course-tab {
  padding: var(--spacing-lg) var(--spacing-xl);
  border: none;
  background: transparent;
  color: var(--color-gray-600);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  border-bottom: 3px solid transparent;
  position: relative;
}

.course-tab:hover {
  color: var(--color-primary-600);
  background: var(--color-primary-50);
}

.course-tab.active {
  color: var(--color-primary-600);
  border-bottom-color: var(--color-primary-600);
}

.course-tab-content {
  padding: var(--spacing-2xl);
}

.course-tab-panel {
  display: none;
}

.course-tab-panel.active {
  display: block;
}

/* Sticky Buy Bar */
.sticky-buy-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-200);
  padding: var(--spacing-lg);
  box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
  transform: translateY(100%);
  transition: var(--transition-normal);
  z-index: 50;
}

.sticky-buy-bar.visible {
  transform: translateY(0);
}

.sticky-buy-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sticky-course-info h4 {
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.sticky-course-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary-600);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 50px;
  height: 50px;
  background: var(--color-primary-600);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
  z-index: 50;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-700);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4);
}

/* Curriculum Progress Bars */
.curriculum-progress {
  width: 100%;
  height: 6px;
  background: var(--color-gray-200);
  border-radius: 3px;
  overflow: hidden;
  margin-top: var(--spacing-sm);
}

.curriculum-progress-bar {
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--color-primary-600),
    var(--color-secondary-600)
  );
  border-radius: 3px;
  transition: width 0.5s ease;
  position: relative;
}

.curriculum-progress-bar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: progressShimmer 2s infinite;
}

@keyframes progressShimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .course-detail-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .course-detail-sidebar {
    position: static;
  }

  .courses-grid {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  }

  .course-card-list {
    grid-template-columns: 1fr;
  }

  .course-list-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .footer-features {
    grid-template-columns: repeat(2, 1fr);
  }

  .back-to-top {
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
  }
}

@media (max-width: 768px) {
  .legal-page-title {
    font-size: 2rem;
  }

  .legal-page-subtitle {
    font-size: 1.125rem;
  }

  .legal-article {
    padding: var(--spacing-xl);
  }

  .plans-grid {
    grid-template-columns: 1fr;
  }

  .plan-card.popular {
    transform: none;
  }

  .plan-card.popular:hover {
    transform: translateY(-4px);
  }

  .billing-toggle {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .courses-page-title {
    font-size: 2.5rem;
  }

  .courses-toolbar {
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: stretch;
  }

  .filter-chips-container {
    flex-wrap: wrap;
  }

  .courses-grid {
    grid-template-columns: 1fr;
  }

  .hero-search-input {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 50px;
    font-size: 1rem;
  }

  .course-detail-title {
    font-size: 2rem;
  }

  /* Enhanced Mobile Styles */
  .enhanced-hero-title {
    font-size: 2.5rem;
  }

  .enhanced-hero-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
  }

  .enhanced-cards-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .curriculum-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .curriculum-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--color-gray-200);
    padding-right: 0;
    padding-bottom: var(--spacing-lg);
  }

  .curriculum-content {
    padding-left: 0;
    padding-top: var(--spacing-lg);
  }

  .rating-overview {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
  }

  /* Profile Dropdown Mobile */
  .profile-dropdown {
    right: -50px;
    min-width: 260px;
  }

  /* Video Controls Mobile */
  .video-call-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .video-display {
    min-height: 150px;
  }

  .video-call-window.pinned .video-display {
    min-height: 100px;
  }

  .control-group {
    justify-content: center;
  }

  /* Sub-Tab Navigation Mobile */
  .sub-tab-list {
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .sub-tab-button {
    white-space: nowrap;
    padding: var(--spacing-md) var(--spacing-lg);
  }

  /* Partners Grid Mobile */
  .partners-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .partner-header {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-md);
  }

  .partner-image {
    align-self: center;
  }

  .partner-actions {
    flex-direction: column;
  }

  /* Partner Detail Mobile */
  .partner-profile-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .partner-profile-header {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-lg);
  }

  .partner-header-info h1 {
    font-size: 2rem;
  }

  .partner-languages {
    justify-content: center;
  }

  .specialties-grid {
    grid-template-columns: 1fr;
  }

  .classrooms-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Calendar Mobile */
  .calendar-week {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .calendar-day {
    min-height: 80px;
  }

  /* Students Grid Mobile */
  .students-grid {
    grid-template-columns: 1fr;
  }

  /* Message Input Mobile */
  .message-input-group {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .send-button {
    align-self: stretch;
  }
  .filter-pills {
    flex-direction: column;
    align-items: stretch;
  }

  .detail-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .detail-sidebar {
    position: static;
    order: -1;
  }

  .sticky-video-header {
    position: static;
  }

  .tab-navigation {
    position: static;
  }

  .tab-list {
    gap: var(--spacing-lg);
    overflow-x: auto;
    padding-bottom: var(--spacing-sm);
  }

  .thread-replies {
    margin-left: var(--spacing-lg);
  }

  .enhanced-pagination {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  /* Auth Mobile Responsive */
  .auth-card {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .auth-benefits-column {
    order: -1;
    padding: var(--spacing-xl);
    min-height: 300px;
  }

  .auth-form-column {
    padding: var(--spacing-xl);
  }

  .auth-title {
    font-size: 1.5rem;
  }

  .benefits-title {
    font-size: 1.5rem;
  }

  .benefits-list {
    gap: var(--spacing-lg);
  }

  .benefit-item {
    gap: var(--spacing-md);
  }

  .benefit-icon {
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
  }

  .otp-input-group {
    gap: var(--spacing-sm);
  }

  .otp-input {
    width: 50px;
    height: 50px;
    font-size: 1.25rem;
  }

  .role-options {
    grid-template-columns: 1fr;
  }

  .social-buttons {
    flex-direction: column;
  }

  /* Admin Dashboard Mobile */
  .admin-sidebar {
    width: 100%;
    transform: translateX(-100%);
  }

  .admin-sidebar.open {
    transform: translateX(0);
  }

  .admin-main {
    margin-left: 0;
  }

  .admin-content {
    padding: var(--spacing-xl);
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .admin-header {
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .page-title {
    font-size: 1.5rem;
  }

  .chart-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  .chart-controls {
    width: 100%;
    justify-content: space-between;
  }

  .chart-container {
    height: 250px;
  }

  .data-table-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  .data-table-actions {
    width: 100%;
    justify-content: space-between;
  }

  .quick-actions {
    flex-direction: column;
    width: 100%;
  }

  .stats-card-value {
    font-size: 2rem;
  }
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-gray-900);
}

h1 {
  font-size: 3rem;
  font-weight: 700;
}
h2 {
  font-size: 2.25rem;
  font-weight: 600;
}
h3 {
  font-size: 1.875rem;
  font-weight: 600;
}
h4 {
  font-size: 1.5rem;
  font-weight: 600;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-700);
}

img {
  max-width: 100%;
  height: auto;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-primary-700);
  color: var(--color-white);
}

.btn-outline {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn-white:hover {
  background: var(--color-gray-100);
  color: var(--color-primary-700);
}

.btn-outline-white {
  border-color: var(--color-white);
  color: var(--color-white);
  background: transparent;
}

.btn-outline-white:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
}

.btn-large1 {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    color: antiquewhite;
}

.btn-small {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.75rem;
}

/* Icon Styles */
.icon {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.btn-large .icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* Header Styles */
.header {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-gray-900);
}

.brand-icon {
  font-size: 2rem;
  color: var(--color-primary);
}

.brand-nihongo {
  color: var(--color-primary);
}

.brand-sekai {
  color: var(--color-gray-900);
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-gray-700);
  transition: var(--transition-fast);
}

/* Hero Section */
.hero {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  color: var(--color-white);
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  top: 20%;
  right: 10%;
  width: 200px;
  height: 200px;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text y=".9em" font-size="80" fill="rgba(255,255,255,0.1)">日</text></svg>')
    no-repeat center;
  background-size: contain;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.hero-title .highlight {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-3xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
}

.stat-label {
  font-size: 0.875rem;
  opacity: 0.8;
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 500px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Section Styles */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-gray {
  background: var(--color-gray-50);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  max-width: 600px;
  margin: 0 auto;
}

.section-footer {
  text-align: center;
  margin-top: var(--spacing-3xl);
}

/* Grid Layouts */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.classrooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-xl);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

/* Card Styles */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.course-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.course-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.course-content {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-900);
}

.course-description {
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
  flex: 1;
}

.course-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

.course-rating {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.course-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.course-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.classroom-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.classroom-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.classroom-content {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.classroom-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-900);
}

.classroom-description {
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
}

.classroom-teacher {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.teacher-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--color-primary-100);
}

.teacher-name {
  font-weight: 500;
  color: var(--color-gray-900);
}

.classroom-meta {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-lg);
}

.classroom-students {
  margin-bottom: var(--spacing-sm);
}

.classroom-schedule {
  margin-bottom: var(--spacing-sm);
}

/* Feature Cards */
.feature-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 64px;
    height: 64px;
    font-size: 30px;
    margin: 0 auto var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-primary-50);
    border-radius: 50%;
    color: var(--color-primary);
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature-title {
  margin-bottom: var(--spacing-md);
}

.feature-description {
  color: var(--color-gray-600);
}

/* CTA Section */
.cta-section {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  color: var(--color-white);
  text-align: center;
}

.cta-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
}

.cta-subtitle {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
}

/* Loading and Toast Styles */
.loading-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 9999;
}

.loading-indicator.show {
  display: flex;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-gray-200);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--spacing-md);
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.loading-text {
  color: var(--color-gray-700);
  font-weight: 500;
}

.toast-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 10000;
  max-width: 400px;
}

.toast {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  border-left: 4px solid var(--color-primary);
  animation: slideIn 0.3s ease-out;
}

.toast.success {
  border-left-color: var(--color-success);
}

.toast.error {
  border-left-color: var(--color-error);
}

.toast.warning {
  border-left-color: var(--color-warning);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Badge Styles */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}

.badge-primary {
  background: var(--color-primary-100);
  color: var(--color-primary-800);
}

.badge-success {
  background: #dcfce7;
  color: #166534;
}

.badge-warning {
  background: var(--color-accent-50);
  color: #92400e;
}

/* Animation Classes */
.animate-in {
  animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Course Detail Page Enhancements */
.curriculum-container {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: var(--spacing-2xl);
  min-height: 500px;
}

.curriculum-sidebar {
  border-right: 1px solid var(--color-gray-200);
  padding-right: var(--spacing-xl);
}

.curriculum-content {
  padding-left: var(--spacing-xl);
}

.curriculum-section {
  margin-bottom: var(--spacing-lg);
  border: 1px solid var(--color-gray-200);
  border-radius: 8px;
  overflow: hidden;
}

.section-header {
  padding: var(--spacing-lg);
  background: var(--color-gray-50);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.2s ease;
}

.section-header:hover {
  background: var(--color-gray-100);
}

.section-header h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

.section-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-gray-600);
  font-size: 0.875rem;
}

.expand-icon {
  transition: transform 0.2s ease;
}

.lessons-list {
  display: none;
  background: white;
}

.lesson-item {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--color-gray-200);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: background-color 0.2s ease;
}

.lesson-item:hover {
  background: var(--color-gray-50);
}

.lesson-item.active {
  background: var(--color-primary-50);
  border-left: 3px solid var(--color-primary-600);
}

.lesson-icon {
  font-size: 1.25rem;
  width: 32px;
  text-align: center;
}

.lesson-details {
  flex: 1;
}

.lesson-title {
  font-weight: 500;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.lesson-meta {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.lesson-content-placeholder {
  background: var(--color-gray-50);
  border-radius: 8px;
  border: 2px dashed var(--color-gray-300);
}

.lesson-header {
  margin-bottom: var(--spacing-xl);
}

.lesson-header h2 {
  font-size: 1.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-900);
}

.lesson-header .lesson-meta {
  display: flex;
  gap: var(--spacing-md);
}

.lesson-type,
.lesson-duration {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  border-radius: 4px;
  font-size: 0.875rem;
  font-weight: 500;
}

.lesson-description {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.lesson-content {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-gray-700);
}

.video-placeholder {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-2xl);
  background: var(--color-gray-100);
  border-radius: 8px;
  text-align: center;
  font-size: 1.125rem;
  color: var(--color-gray-600);
}

/* Reviews Tab Styles */
.rating-summary {
  background: var(--color-gray-50);
  padding: var(--spacing-2xl);
  border-radius: 12px;
}

.rating-overview {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--spacing-2xl);
}

.overall-rating {
  text-align: center;
}

.rating-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.rating-stars {
  font-size: 1.5rem;
  color: var(--color-warning);
  margin-bottom: var(--spacing-sm);
}

.rating-text {
  color: var(--color-gray-600);
  font-size: 0.875rem;
}

.rating-breakdown {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.rating-bar {
  display: grid;
  grid-template-columns: 60px 1fr 40px;
  gap: var(--spacing-md);
  align-items: center;
}

.stars-label {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.progress-bar {
  height: 20px;
  background: var(--color-gray-200);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary-600);
  transition: width 0.3s ease;
}

.percentage {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  text-align: right;
}

.review-form {
  background: white;
  padding: var(--spacing-2xl);
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  margin-bottom: var(--spacing-2xl);
}

.review-form h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

.rating-input label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--color-gray-700);
}

.star-rating {
  display: flex;
  gap: var(--spacing-xs);
}

.star-rating .star {
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.2s ease;
  color: var(--color-gray-300);
}

.star-rating .star:hover {
  color: var(--color-warning);
}

.review-item {
  background: white;
  padding: var(--spacing-xl);
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  margin-bottom: var(--spacing-lg);
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.reviewer-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.reviewer-avatar {
  width: 40px;
  height: 40px;
  background: var(--color-primary-600);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
}

.reviewer-name {
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.review-date {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

.review-rating {
  color: var(--color-warning);
  font-size: 1.125rem;
}

.review-content {
  color: var(--color-gray-700);
  line-height: 1.6;
}

/* FAQ Tab Styles */
.faq-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.faq-item {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  overflow: hidden;
}

.faq-question {
  padding: var(--spacing-lg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-gray-50);
  transition: background-color 0.2s ease;
}

.faq-question:hover {
  background: var(--color-gray-100);
}

.faq-question h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

.faq-icon {
  transition: transform 0.3s ease;
  color: var(--color-gray-600);
}

.faq-answer {
  padding: var(--spacing-lg);
  background: white;
  border-top: 1px solid var(--color-gray-200);
  animation: slideDown 0.3s ease;
}

.faq-answer p {
  margin: 0;
  color: var(--color-gray-700);
  line-height: 1.6;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Static Search (not sticky) */
.static-search-section {
  background: white;
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--color-gray-200);
}

/* Autocomplete Dropdown */
.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: white;
  border: 1px solid var(--color-gray-300);
  border-top: none;
  border-radius: 0 0 8px 8px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  max-height: 300px;
  overflow-y: auto;
}

.autocomplete-suggestion {
  padding: var(--spacing-md);
  cursor: pointer;
  border-bottom: 1px solid var(--color-gray-100);
  transition: background-color 0.2s ease;
}

.autocomplete-suggestion:hover,
.autocomplete-suggestion.highlighted {
  background: var(--color-gray-50);
}

.autocomplete-suggestion:last-child {
  border-bottom: none;
}

.suggestion-title {
  font-weight: 500;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.suggestion-meta {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  display: flex;
  gap: var(--spacing-sm);
}

.suggestion-highlight {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  padding: 0 2px;
  border-radius: 2px;
}

/* ==================== USER PROFILE MENU ==================== */
.user-profile-menu {
  position: relative;
  display: flex;
  align-items: center;
}

.user-avatar-container {
  position: relative;
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: 50%;
  transition: background-color 0.2s ease;
}

.user-avatar-container:hover {
  background: var(--color-gray-100);
}

.user-avatar {
  width: 40px;
  height: 40px;
  background: var(--color-primary-600);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  border: 2px solid white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.cartoon-avatar {
  width: 100%;
  height: 100%;
}

.online-indicator {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 12px;
  height: 12px;
  background: var(--color-success);
  border: 2px solid white;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
  }
}

.profile-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  min-width: 280px;
  z-index: 1000;
  overflow: hidden;
  animation: slideInFromTop 0.2s ease;
}

.dropdown-header {
  padding: var(--spacing-lg);
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.dropdown-avatar {
  width: 48px;
  height: 48px;
  background: var(--color-primary-600);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1rem;
  overflow: hidden;
}

.dropdown-avatar .cartoon-avatar {
  width: 100%;
  height: 100%;
}

.dropdown-user-info {
  flex: 1;
}

.dropdown-name {
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.dropdown-role {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  background: var(--color-gray-200);
  padding: 0.125rem 0.5rem;
  border-radius: 4px;
  display: inline-block;
}

.dropdown-menu {
  padding: var(--spacing-sm) 0;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--color-gray-700);
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.dropdown-item:hover {
  background: var(--color-gray-50);
  color: var(--color-primary-600);
}

.dropdown-item.logout {
  color: var(--color-error);
}

.dropdown-item.logout:hover {
  background: #fef2f2;
  color: var(--color-error);
}

.menu-progress-preview,
.menu-join-indicator,
.menu-edit-indicator {
  font-size: 0.75rem;
  color: var(--color-gray-500);
  background: var(--color-gray-100);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  margin-left: auto;
}

.menu-join-indicator {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
}

.menu-edit-indicator {
  background: var(--color-secondary-100);
  color: var(--color-secondary-700);
}

/* Logout Confirmation Modal */
.logout-confirmation-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
}

.modal-overlay {
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.modal-content {
  background: white;
  border-radius: 12px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
  max-width: 400px;
  width: 100%;
  overflow: hidden;
  animation: slideInFromTop 0.3s ease;
}

.modal-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-200);
}

.modal-header h3 {
  margin: 0;
  color: var(--color-gray-900);
  font-weight: 600;
}

.modal-body {
  padding: var(--spacing-lg);
}

.modal-body p {
  margin: 0;
  color: var(--color-gray-600);
  line-height: 1.6;
}

.modal-actions {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-gray-200);
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
}

/* Purchased Button Styling */
.purchased-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-success);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: default;
  opacity: 0.9;
}

.purchased-button svg {
  stroke-width: 2.5;
}

.dropdown-divider {
  height: 1px;
  background: var(--color-gray-200);
  margin: var(--spacing-sm) 0;
}

/* ==================== SECURITY NOTIFICATION ==================== */
.security-notification {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  background: var(--color-success-50);
  border: 1px solid var(--color-success-200);
  border-radius: 8px;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  animation: slideInFromTop 0.5s ease;
}

.security-icon {
  font-size: 1.5rem;
  color: var(--color-success-600);
}

.security-content {
  flex: 1;
}

.security-title {
  font-weight: 600;
  color: var(--color-success-800);
  margin-bottom: var(--spacing-xs);
}

.security-description {
  font-size: 0.875rem;
  color: var(--color-success-700);
}

@keyframes slideInFromTop {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideOutToTop {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-20px);
  }
}

/* ==================== CLASSROOM DETAIL ENHANCEMENTS ==================== */
.video-call-window {
  background: var(--color-gray-900);
  color: white;
  transition: all 0.3s ease;
  z-index: 100;
}

.video-call-window.pinned {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.video-call-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-xl);
  padding: var(--spacing-lg) 0;
  align-items: center;
}

.video-display {
  background: var(--color-gray-800);
  border-radius: 12px;
  padding: var(--spacing-xl);
  text-align: center;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.video-call-window.pinned .video-display {
  min-height: 120px;
  padding: var(--spacing-lg);
}

.video-placeholder .video-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
}

.video-placeholder h3 {
  margin-bottom: var(--spacing-sm);
  color: white;
}

.video-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.control-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.control-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--color-gray-700);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.control-btn:hover {
  background: var(--color-gray-600);
  transform: scale(1.05);
}

.control-btn.muted,
.control-btn.video-off {
  background: var(--color-error);
}

.control-btn.active {
  background: var(--color-primary-600);
}

.control-btn.leave-call {
  background: var(--color-error);
}

.control-btn.leave-call:hover {
  background: var(--color-error-600);
}

.call-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-error);
}

.status-indicator.online {
  background: var(--color-success);
}

/* Sub-Tab Navigation */
.sub-tab-navigation {
  background: white;
  border-bottom: 1px solid var(--color-gray-200);
  position: sticky;
  top: 0;
  z-index: 50;
}

.sub-tab-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.sub-tab-button {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-xl);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-gray-600);
  font-weight: 500;
  border-bottom: 3px solid transparent;
  transition: all 0.2s ease;
}

.sub-tab-button:hover {
  color: var(--color-primary-600);
  background: var(--color-primary-50);
}

.sub-tab-button.active {
  color: var(--color-primary-600);
  border-bottom-color: var(--color-primary-600);
  background: var(--color-primary-50);
}

/* Sub-Tab Panels */
.sub-tab-panels {
  margin-top: var(--spacing-xl);
}

.sub-tab-panel {
  transition: opacity 0.3s ease;
}

/* Discussion Panel */
.discussion-container {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  overflow: hidden;
}

.discussion-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.discussion-stats {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.messages-container {
  max-height: 400px;
  overflow-y: auto;
  padding: var(--spacing-lg);
}

.message-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.message-avatar {
  width: 36px;
  height: 36px;
  background: var(--color-primary-600);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.message-content {
  flex: 1;
}

.message-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
}

.message-author {
  font-weight: 600;
  color: var(--color-gray-900);
}

.message-role {
  font-size: 0.75rem;
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
}

.message-time {
  font-size: 0.75rem;
  color: var(--color-gray-500);
}

.message-text {
  color: var(--color-gray-700);
  line-height: 1.5;
}

.message-input-container {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-gray-200);
}

.message-input-group {
  display: flex;
  gap: var(--spacing-sm);
}

.message-input {
  flex: 1;
  padding: var(--spacing-md);
  border: 1px solid var(--color-gray-300);
  border-radius: 8px;
  font-family: inherit;
}

.send-button {
  padding: var(--spacing-md);
  background: var(--color-primary-600);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.send-button:hover {
  background: var(--color-primary-700);
}

/* Students Panel */
.students-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.student-card {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  padding: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.student-avatar {
  width: 48px;
  height: 48px;
  background: var(--color-primary-600);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.student-info {
  flex: 1;
}

.student-name {
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.student-join-date {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.student-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.status-text {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

/* Schedule Panel */
.schedule-calendar {
  margin-top: var(--spacing-lg);
}

.calendar-week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--spacing-md);
}

.calendar-day {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: 8px;
  padding: var(--spacing-md);
  min-height: 120px;
}

.day-header {
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.session-slot {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: 6px;
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
}

.session-slot.active {
  background: var(--color-primary-50);
  border-color: var(--color-primary-200);
}

.session-time {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-xs);
}

.session-topic {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

/* ==================== PARTNERS LIST & DETAIL ==================== */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

.partner-card {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.partner-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.partner-header {
  padding: var(--spacing-xl);
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.partner-image {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.partner-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.verified-badge {
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 24px;
  height: 24px;
  background: var(--color-success);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
  border: 2px solid white;
}

.partner-basic-info {
  flex: 1;
}

.partner-name {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.partner-location {
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
}

.partner-rating {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.rating-value {
  font-weight: 600;
  color: var(--color-gray-900);
}

.rating-count {
  color: var(--color-gray-600);
  font-size: 0.875rem;
}

.partner-content {
  padding: 0 var(--spacing-xl) var(--spacing-xl);
}

.partner-bio {
  color: var(--color-gray-700);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

.partner-specialties {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.specialty-tag {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
}

.partner-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.detail-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.detail-icon {
  font-size: 1rem;
}

.partner-classrooms {
  margin-bottom: var(--spacing-lg);
}

.classrooms-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
}

.classrooms-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.classroom-tag {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  padding: 0.125rem 0.5rem;
  border-radius: 12px;
  font-size: 0.75rem;
}

.partner-actions {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-top: 1px solid var(--color-gray-200);
  display: flex;
  gap: var(--spacing-md);
}

.partner-actions .btn {
  flex: 1;
}

/* Partner Detail Page */
.partner-profile-section {
  padding: var(--spacing-2xl) 0;
}

.partner-profile-layout {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--spacing-3xl);
}

.partner-profile-header {
  display: flex;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-gray-200);
}

.partner-image-container {
  position: relative;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.partner-profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.partner-header-info {
  flex: 1;
}

.partner-header-info h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
}

.partner-title {
  font-size: 1.25rem;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-sm);
}

.partner-rating-section {
  margin: var(--spacing-lg) 0;
}

.partner-languages {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.languages-label {
  font-weight: 600;
  color: var(--color-gray-700);
}

.languages-list {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.language-tag {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
}

.partner-section {
  margin-bottom: var(--spacing-2xl);
}

.partner-section h2 {
  font-size: 1.875rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-lg);
}

.specialties-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.specialty-card {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  padding: var(--spacing-lg);
  text-align: center;
  transition: all 0.2s ease;
}

.specialty-card:hover {
  border-color: var(--color-primary-300);
  transform: translateY(-2px);
}

.specialty-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.specialty-name {
  font-weight: 600;
  color: var(--color-gray-900);
}

.experience-highlight {
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  border-radius: 12px;
  padding: var(--spacing-xl);
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.experience-years {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary-600);
  margin-bottom: var(--spacing-xs);
}

.experience-label {
  font-size: 1.125rem;
  color: var(--color-gray-700);
  font-weight: 500;
}

.classrooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.classroom-card {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  padding: var(--spacing-xl);
  transition: all 0.2s ease;
}

.classroom-card:hover {
  border-color: var(--color-primary-300);
  transform: translateY(-2px);
}

.classroom-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.classroom-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin: 0;
}

.classroom-level {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
}

.classroom-description {
  color: var(--color-gray-700);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

.classroom-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.classroom-schedule,
.classroom-students {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.classroom-actions {
  display: flex;
  gap: var(--spacing-md);
}

/* Partner Sidebar */
.session-pricing {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.price-display {
  margin-bottom: var(--spacing-lg);
}

.price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary-600);
}

.price-period {
  color: var(--color-gray-600);
  font-size: 0.875rem;
  margin-left: var(--spacing-sm);
}

.contact-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.availability-info h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-lg);
}

.availability-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.availability-label {
  color: var(--color-gray-600);
  font-size: 0.875rem;
}

.availability-value {
  color: var(--color-gray-900);
  font-weight: 500;
  font-size: 0.875rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.achievements-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.achievement-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.achievement-icon {
  font-size: 1.25rem;
}

.achievement-text {
  color: var(--color-gray-700);
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
  }

  .nav-menu.active {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    gap: var(--spacing-lg);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-actions {
    order: -1;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .courses-grid,
  .classrooms-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .cta-title {
    font-size: 2rem;
  }

  .courses-grid,
  .classrooms-grid {
    grid-template-columns: 1fr;
  }
}

/* Focus States for Accessibility */
.btn:focus,
.nav-link:focus,
a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .nav-toggle,
  .cta-section {
    display: none !important;
  }

  body {
    background: white !important;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

.custom-navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

    .custom-navbar .nav-brand { /* logo */
        display: flex;
        align-items: center;
    }

    .custom-navbar .brand-link {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        font-weight: 700;
        font-size: 1.5rem;
        color: var(--color-gray-900);
        text-decoration: none;
    }

    .custom-navbar .nav-list {
        display: flex;
        gap: var(--spacing-lg);
        list-style: none;
        margin: 0;
        padding: 0;
    }

        .custom-navbar .nav-list li {
            list-style: none;
        }

    .custom-navbar .nav-link {
        position: relative;
        padding: var(--spacing-sm) 0;
        font-weight: 500;
        color: var(--color-gray-700);
        text-decoration: none;
        transition: color var(--transition-fast);
    }

        .custom-navbar .nav-link:hover {
            color: var(--color-primary);
        }

        .custom-navbar .nav-link.active-tab {
            color: var(--color-primary) !important;
            font-weight: 500;
        }

            .custom-navbar .nav-link.active-tab::after {
                content: "";
                position: absolute;
                bottom: -4px;
                left: 0;
                height: 2px;
                width: 100%;
                background: var(--color-primary);
            }

    .custom-navbar .nav-actions {
        display: flex;
        align-items: center;
        gap: var(--spacing-md);
    }

    /* Dropdown */
    .custom-navbar .dropdown-toggle::after {
        margin-left: 0.25rem;
    }

    .custom-navbar .dropdown-menu {
        min-width: 10rem;
    }

        .custom-navbar .dropdown-menu .dropdown-item:hover {
            background-color: var(--color-primary-50);
        }

/* Banner Under-Construction */
.dev-banner {
    background-color: #fff8e1;
    border-bottom: 1px solid #ffe0b2;
    padding: .75rem 0;
    font-family: "Source Sans Pro", sans-serif;
}

.dev-banner-icon {
    width: 48px;
    height: 48px;
}

.dev-banner-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #f57c00;
}

.dev-banner-text {
    font-size: .95rem;
    color: #5d4037;
}