/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #0f1117;
  --color-surface: #1a1d27;
  --color-surface-hover: #22263a;
  --color-border: #2a2e3f;
  --color-primary: #6c5ce7;
  --color-primary-hover: #7e6ff0;
  --color-primary-light: rgba(108, 92, 231, 0.12);
  --color-accent: #00cec9;
  --color-text: #e8e8ef;
  --color-text-secondary: #9ca0b5;
  --color-text-muted: #6b7094;
  --color-error: #ff6b6b;
  --color-error-bg: rgba(255, 107, 107, 0.1);
  --color-success: #00b894;
  --color-success-bg: rgba(0, 184, 148, 0.1);
  --color-warning: #fdcb6e;
  --color-warning-bg: rgba(253, 203, 110, 0.1);
  --color-card-gradient-1: linear-gradient(135deg, #1a1d27 0%, #22263a 100%);
  --font-family: 'IBM Plex Sans Arabic', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-en: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Light Mode ===== */
body.light-mode {
  --color-bg: #f5f6fa;
  --color-surface: #ffffff;
  --color-surface-hover: #f0f1f5;
  --color-border: #e0e3eb;
  --color-primary: #6c5ce7;
  --color-primary-hover: #5a4bd6;
  --color-primary-light: rgba(108, 92, 231, 0.08);
  --color-accent: #00a68c;
  --color-text: #1a1d27;
  --color-text-secondary: #555a6e;
  --color-text-muted: #8b90a5;
  --color-error: #e74c3c;
  --color-error-bg: rgba(231, 76, 60, 0.08);
  --color-success: #00b894;
  --color-success-bg: rgba(0, 184, 148, 0.08);
  --color-warning: #e0a800;
  --color-warning-bg: rgba(224, 168, 0, 0.08);
  --color-card-gradient-1: linear-gradient(135deg, #ffffff 0%, #f8f9fb 100%);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
}

body.light-mode .navbar {
  background: rgba(255, 255, 255, 0.9);
}

body.light-mode .hamburger,
body.light-mode .hamburger::before,
body.light-mode .hamburger::after {
  background: var(--color-text);
}

html[lang="en"] body {
  font-family: var(--font-family-en);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Skip Link (Accessibility) ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 16px;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 200;
  font-size: 0.85rem;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
  color: #fff;
}

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

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

/* ===== Container ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Navbar ===== */
.navbar {
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text) !important;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-link {
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-text);
  background: var(--color-primary-light);
  outline: none;
}

.nav-link-logout {
  color: var(--color-error);
}

.nav-link-logout:hover,
.nav-link-logout:focus-visible {
  color: #fff;
  background: var(--color-error-bg);
}

.nav-user {
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.nav-lang-toggle {
  border: 1px solid var(--color-border);
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 20px;
}

/* Hamburger Button */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}

.hamburger {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  position: relative;
  transition: all 0.3s;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  left: 0;
  transition: all 0.3s;
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

.nav-toggle.active .hamburger {
  background: transparent;
}

.nav-toggle.active .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.nav-toggle.active .hamburger::after {
  transform: rotate(-45deg);
  top: 0;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    max-width: 85vw;
    background: var(--color-surface);
    border-inline-start: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 80px 24px 32px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 105;
    overflow-y: auto;
  }

  html[dir="ltr"] .nav-links {
    right: auto;
    left: 0;
    transform: translateX(-100%);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 1rem;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }

  .nav-user {
    padding: 12px 16px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 8px;
  }
}

/* ===== Main Content ===== */
.main-content {
  flex: 1;
  padding-top: 40px;
  padding-bottom: 60px;
}

/* ===== Auth Pages ===== */
.auth-container {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 40px;
}

.auth-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
}

.auth-card h1 {
  font-size: 1.5rem;
  margin-bottom: 24px;
  text-align: center;
}

.auth-links {
  margin-top: 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.auth-links a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-check label {
  font-size: 0.95rem;
  color: var(--color-text);
  cursor: pointer;
  margin: 0;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.4);
}

.btn-success {
  background: var(--color-success);
  color: #fff;
}

.btn-success:hover {
  background: #00a884;
  color: #fff;
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--color-error);
  color: #fff;
}

.btn-danger:hover {
  background: #e55656;
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

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

.btn-sm {
  padding: 6px 16px;
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ===== Alerts ===== */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.9rem;
}

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

.alert ul li+li {
  margin-top: 4px;
}

.alert-error {
  background: var(--color-error-bg);
  border: 1px solid rgba(255, 107, 107, 0.25);
  color: var(--color-error);
}

.alert-success {
  background: var(--color-success-bg);
  border: 1px solid rgba(0, 184, 148, 0.25);
  color: var(--color-success);
}

.alert-warning {
  background: var(--color-warning-bg);
  border: 1px solid rgba(253, 203, 110, 0.25);
  color: var(--color-warning);
}

/* ===== Page Headers ===== */
.page-header {
  margin-bottom: 32px;
}

.page-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.page-header p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* ===== Course Cards ===== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.course-card {
  background: var(--color-card-gradient-1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition);
}

.course-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.course-card:hover::before {
  opacity: 1;
}

.course-card-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.course-card-title a {
  color: var(--color-text);
}

.course-card-title a:hover {
  color: var(--color-primary);
}

.course-card-desc {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

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

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-free {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid rgba(0, 184, 148, 0.25);
}

.badge-paid {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid rgba(253, 203, 110, 0.25);
}

/* ===== Course Detail ===== */
.course-detail {
  max-width: 720px;
}

.course-detail h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.course-detail .description {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
  font-size: 1rem;
}

.course-price-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.price-amount {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-accent);
}

.price-currency {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-right: 6px;
}

/* ===== Welcome / Hero ===== */
.hero {
  text-align: center;
  padding: 80px 0 60px;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  max-width: 500px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Admin Dashboard ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: all var(--transition);
}

.stat-card:hover {
  border-color: var(--color-primary);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  display: block;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.admin-nav {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

/* ===== Tables ===== */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

thead {
  background: var(--color-surface);
}

th,
td {
  padding: 14px 18px;
  text-align: right;
  border-bottom: 1px solid var(--color-border);
}

th {
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tbody tr {
  transition: background var(--transition);
}

tbody tr:hover {
  background: var(--color-surface-hover);
}

.table-actions {
  display: flex;
  gap: 8px;
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.82rem;
  margin-top: auto;
}

/* ===== Status Badges ===== */
.status-pending {
  color: var(--color-warning);
}

.status-approved {
  color: var(--color-success);
}

.status-rejected {
  color: var(--color-error);
}

/* ===== Back Link ===== */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.back-link:hover {
  color: var(--color-primary);
}

/* ===== Register Tabs ===== */
.register-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.register-tab {
  flex: 1;
  padding: 12px 16px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  transition: all var(--transition);
  text-decoration: none;
}

.register-tab:hover {
  color: var(--color-text);
  background: var(--color-surface-hover);
}

.register-tab.active {
  color: #fff;
  background: var(--color-primary);
}

/* ===== Application Detail ===== */
.app-detail-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
}

.app-detail-card h3 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.app-detail-row {
  display: flex;
  gap: 12px;
  margin-bottom: 10px;
  font-size: 0.92rem;
}

.app-detail-label {
  font-weight: 600;
  color: var(--color-text-secondary);
  min-width: 120px;
}

.app-detail-value {
  color: var(--color-text);
  line-height: 1.6;
}

/* ===== WhatsApp Contact Section ===== */
.contact-section {
  text-align: center;
  padding: 60px 0 20px;
}

.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  max-width: 520px;
  margin: 0 auto;
  transition: all var(--transition);
}

.contact-card:hover {
  border-color: #25D366;
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.15);
}

.contact-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.contact-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.contact-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
  line-height: 1.7;
}

.btn-whatsapp {
  background: #25D366;
  color: #fff;
  padding: 14px 32px;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  transition: all var(--transition);
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.btn-whatsapp:hover {
  background: #1ebe57;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.4);
}

.btn-whatsapp svg {
  flex-shrink: 0;
}

/* ===== Developers Page ===== */
.dev-hero {
  text-align: center;
  padding: 40px 0 32px;
}

.dev-hero h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dev-hero p {
  color: var(--color-text-secondary);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto;
}

/* API Key Management */
.dev-section {
  margin-bottom: 40px;
}

.dev-section-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
}

.dev-section-title .icon {
  font-size: 1.3rem;
}

.api-key-create {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.api-key-create .form-group {
  flex: 1;
  min-width: 200px;
  margin-bottom: 0;
}

.api-key-new-reveal {
  background: var(--color-success-bg);
  border: 1px solid rgba(0, 184, 148, 0.3);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.api-key-new-reveal h4 {
  color: var(--color-success);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.api-key-new-reveal .key-value {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  color: var(--color-accent);
  word-break: break-all;
  margin-bottom: 8px;
  direction: ltr;
  text-align: left;
}

.api-key-new-reveal .key-warning {
  font-size: 0.82rem;
  color: var(--color-warning);
}

.api-keys-list {
  display: grid;
  gap: 12px;
}

.api-key-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: all var(--transition);
}

.api-key-item:hover {
  border-color: var(--color-primary);
}

.api-key-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--color-text);
}

.api-key-info .key-meta {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.api-key-info .key-preview {
  font-family: 'Courier New', Courier, monospace;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  direction: ltr;
}

/* API Documentation */
.doc-tabs {
  display: flex;
  gap: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-bottom: 24px;
}

.doc-tab {
  flex: 1;
  padding: 12px 16px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-family: var(--font-family);
}

.doc-tab:hover {
  color: var(--color-text);
  background: var(--color-surface-hover);
}

.doc-tab.active {
  color: #fff;
  background: var(--color-primary);
}

.doc-panel {
  display: none;
}

.doc-panel.active {
  display: block;
}

.endpoint-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  transition: all var(--transition);
}

.endpoint-card:hover {
  border-color: var(--color-primary);
}

.endpoint-header {
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: background var(--transition);
}

.endpoint-header:hover {
  background: var(--color-surface-hover);
}

.endpoint-method {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: 'Courier New', Courier, monospace;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.method-get {
  background: rgba(0, 184, 148, 0.15);
  color: var(--color-success);
  border: 1px solid rgba(0, 184, 148, 0.3);
}

.method-post {
  background: rgba(108, 92, 231, 0.15);
  color: var(--color-primary);
  border: 1px solid rgba(108, 92, 231, 0.3);
}

.method-delete {
  background: rgba(255, 107, 107, 0.15);
  color: var(--color-error);
  border: 1px solid rgba(255, 107, 107, 0.3);
}

.endpoint-path {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  color: var(--color-text);
  direction: ltr;
}

.endpoint-desc-short {
  margin-right: auto;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.endpoint-body {
  padding: 0 22px 22px;
  border-top: 1px solid var(--color-border);
}

.endpoint-body p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin: 16px 0 12px;
  line-height: 1.6;
}

.endpoint-body h5 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin: 16px 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Code Blocks */
.code-block {
  position: relative;
  background: #0d0f14;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin: 8px 0 16px;
  overflow: hidden;
}

.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--color-border);
}

.code-block-lang {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.code-copy-btn {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-family);
  transition: all var(--transition);
}

.code-copy-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.code-copy-btn.copied {
  border-color: var(--color-success);
  color: var(--color-success);
}

.code-block pre {
  padding: 14px 18px;
  overflow-x: auto;
  margin: 0;
  direction: ltr;
  text-align: left;
}

.code-block code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text);
}

/* Auth Section in Docs */
.auth-info-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.auth-info-box h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.auth-info-box p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
}

/* Admin badge for admin-only endpoints */
.badge-admin {
  background: rgba(108, 92, 231, 0.15);
  color: var(--color-primary);
  border: 1px solid rgba(108, 92, 231, 0.3);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-inner {
    height: auto;
    padding: 12px 0;
    flex-wrap: wrap;
    gap: 8px;
  }

  .nav-links {
    gap: 8px;
  }

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

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .auth-card {
    padding: 28px 20px;
  }

  .course-price-box {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .api-key-create {
    flex-direction: column;
    align-items: stretch;
  }

  .api-key-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .endpoint-header {
    flex-wrap: wrap;
  }

  .endpoint-desc-short {
    width: 100%;
  }

  .doc-tabs {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== PayPal Checkout ===== */
.paypal-checkout-section {
  margin-top: 28px;
}

.paypal-checkout-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  overflow: hidden;
}

.paypal-checkout-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #0070ba, #00cf92);
}

.paypal-checkout-header {
  text-align: center;
  margin-bottom: 24px;
}

.paypal-lock-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 8px;
}

.paypal-checkout-header h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-text);
}

.paypal-checkout-header p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

#paypal-button-container {
  max-width: 400px;
  margin: 0 auto 20px;
  min-height: 45px;
}

.paypal-secure-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.paypal-secure-note svg {
  flex-shrink: 0;
  opacity: 0.6;
}

@media (max-width: 640px) {
  .paypal-checkout-card {
    padding: 24px 16px;
  }
}

/* ===== Course Cards Grid ===== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.course-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
}

.course-card:hover,
.course-card:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
  color: var(--color-text);
  outline: none;
}

.course-card-cover {
  width: 100%;
  height: 160px;
  overflow: hidden;
  background: var(--color-surface-hover);
}

.course-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

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

.course-card-cover-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-hover) 100%);
}

.course-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.course-card-body h3 {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
}

.course-card-meta {
  margin-top: auto;
}

/* ===== Profile Page ===== */
.profile-page,
.messages-page {
  max-width: 700px;
  margin: 0 auto;
}

.profile-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 24px;
}

.profile-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.profile-section-icon {
  font-size: 1.4rem;
}

.profile-section-header h2 {
  font-size: 1.15rem;
  font-weight: 600;
}

.profile-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.profile-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.profile-label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.profile-value {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 500;
}

.profile-form .form-group {
  margin-bottom: 16px;
}

/* ===== Purchases List ===== */
.purchases-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.purchase-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.purchase-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.purchase-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.empty-state-sm {
  text-align: center;
  padding: 24px;
  color: var(--color-text-muted);
}

/* ===== Messages (User) ===== */
.messages-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.message-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition);
}

.message-card.has-reply {
  border-color: var(--color-success);
  border-inline-start-width: 3px;
}

.message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  gap: 12px;
}

.message-header h4 {
  font-size: 0.95rem;
  font-weight: 600;
}

.message-date {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.message-body {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.message-reply {
  background: var(--color-success-bg);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.message-reply-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-success);
  margin-bottom: 8px;
}

.message-reply p {
  font-size: 0.9rem;
  line-height: 1.6;
}

.message-reply-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 8px;
  display: block;
}

.message-no-reply {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-style: italic;
  padding-top: 8px;
  border-top: 1px dashed var(--color-border);
}

/* ===== Admin Messages ===== */
.admin-messages-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.admin-message-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
}

.admin-message-card.unread {
  border-color: var(--color-primary);
  border-inline-start-width: 3px;
  background: linear-gradient(135deg, var(--color-surface) 0%, rgba(108, 92, 231, 0.04) 100%);
}

.admin-message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.admin-message-sender {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sender-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.sender-meta {
  display: block;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.admin-message-date {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.admin-message-content {
  margin-bottom: 16px;
}

.admin-message-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.admin-message-content p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.admin-message-reply-box.replied {
  background: var(--color-success-bg);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.admin-reply-form {
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 16px;
  border: 1px solid var(--color-border);
}

.admin-reply-form .form-group {
  margin-bottom: 12px;
}

/* ===== Focus & Accessibility ===== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

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

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ===== Responsive Improvements ===== */
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .main-content {
    padding-top: 24px;
    padding-bottom: 40px;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .auth-card {
    padding: 28px 20px;
    margin: 0 -4px;
  }

  .profile-section {
    padding: 20px 16px;
  }

  .profile-info-grid {
    grid-template-columns: 1fr;
  }

  .courses-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .purchase-item {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .message-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .admin-message-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .course-detail h1 {
    font-size: 1.4rem;
  }

  .page-header h1 {
    font-size: 1.3rem;
  }

  .table-wrapper {
    margin: 0 -16px;
    border-radius: 0;
  }

  .admin-nav {
    flex-wrap: wrap;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    gap: 10px;
  }

  .hero-actions .btn {
    width: 100%;
    text-align: center;
  }

  .course-card-cover {
    height: 140px;
  }

  .register-tabs {
    flex-direction: column;
  }
}

/* ===== Course Type Selector ===== */
.course-type-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.type-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 20px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.type-option:hover {
  border-color: var(--color-text-muted);
}

.type-option.active {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.type-option input[type="radio"] {
  display: none;
}

.type-icon {
  font-size: 2rem;
}

.type-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.type-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ===== Audio Lessons Player (Student) ===== */
.audio-lessons-section {
  margin-top: 30px;
}

.audio-lessons-section h2 {
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.lessons-player-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.player-lesson-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.player-lesson-card:hover {
  border-color: var(--color-primary);
}

.player-lesson-num {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.player-lesson-info {
  flex: 1;
  min-width: 0;
}

.player-lesson-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0;
}

.player-lesson-dur {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.player-lesson-card audio {
  height: 36px;
  flex-shrink: 0;
  max-width: 45%;
}

/* ===== Alert Info ===== */
.alert-info {
  background: var(--color-primary-light);
  border: 1px solid rgba(108, 92, 231, 0.25);
  color: var(--color-primary-hover);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.alert-info .icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* ===== Button Secondary ===== */
.btn-secondary {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

@media (max-width: 600px) {
  .course-type-selector {
    grid-template-columns: 1fr;
  }

  .player-lesson-card {
    flex-wrap: wrap;
  }

  .player-lesson-card audio {
    max-width: 100%;
    width: 100%;
  }
}

/* ===== Live Session Features ===== */
.live-join-card {
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  margin-bottom: 30px;
  box-shadow: 0 0 20px rgba(108, 92, 231, 0.15);
  animation: border-pulse 2s infinite;
}

@keyframes border-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(108, 92, 231, 0.4);
  }

  70% {
    box-shadow: 0 0 0 10px rgba(108, 92, 231, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(108, 92, 231, 0);
  }
}

.live-join-card h2 {
  font-size: 1.5rem;
  margin: 15px 0 20px;
}

.status-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 15px;
}

.status-badge.waiting {
  background: rgba(253, 203, 110, 0.15);
  color: #fdcb6e;
}

.status-badge.live {
  background: rgba(231, 76, 60, 0.15);
  color: #e74c3c;
}

.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e74c3c;
  margin-left: 6px;
  animation: blink 1s ease-in-out infinite;
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.3;
  }
}

/* Waiting Animation */
.dot-pulse {
  position: relative;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 9999px 0 0 -5px;
  animation: dotPulse 1.5s infinite linear;
  animation-delay: 0.25s;
}

.dot-pulse::before,
.dot-pulse::after {
  content: '';
  display: inline-block;
  position: absolute;
  top: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-primary);
}

.dot-pulse::before {
  box-shadow: 9984px 0 0 -5px;
  animation: dotPulse 1.5s infinite linear;
  animation-delay: 0s;
}

.dot-pulse::after {
  box-shadow: 10014px 0 0 -5px;
  animation: dotPulse 1.5s infinite linear;
  animation-delay: 0.5s;
}

@keyframes dotPulse {
  0% {
    box-shadow: 9999px 0 0 -5px;
  }

  30% {
    box-shadow: 9999px 0 0 2px;
  }

  60%,
  100% {
    box-shadow: 9999px 0 0 -5px;
  }
}

/* ===== Error Pages (404/403) ===== */
.error-page {
  text-align: center;
  padding: 80px 20px;
  max-width: 480px;
  margin: 0 auto;
}

.error-page .error-icon {
  font-size: 5rem;
  margin-bottom: 24px;
  animation: floatBounce 2s ease-in-out infinite;
}

.error-page h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.error-page p {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  margin-bottom: 32px;
  line-height: 1.7;
}

.error-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

@keyframes floatBounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

/* ===== Courses Toolbar (Search + Categories) ===== */
.courses-toolbar {
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.search-box {
  display: flex;
  gap: 0;
  max-width: 500px;
}

.search-input {
  flex: 1;
  padding: 12px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition);
}

.search-input:focus {
  border-color: var(--color-primary);
}

.search-btn {
  padding: 12px 18px;
  background: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  cursor: pointer;
  font-size: 1rem;
  transition: background var(--transition);
}

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

.category-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 99px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.cat-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.cat-chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.course-category-tag {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

/* ===== Theme Toggle ===== */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 1rem;
  transition: all var(--transition);
  line-height: 1;
}

.theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ===== Notification Bell ===== */
.notif-wrapper {
  position: relative;
}

.notif-bell {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  font-size: 1.2rem;
  padding: 4px 8px;
  position: relative;
  transition: color var(--transition);
}

.notif-bell:hover {
  color: var(--color-primary);
}

.notif-bell .notif-count {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--color-error);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 99px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

.notif-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  max-height: 400px;
  overflow-y: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 200;
}

html[dir="rtl"] .notif-dropdown {
  left: auto;
  right: 50%;
  transform: translateX(50%);
}

.notif-dropdown.open {
  display: block;
}

.notif-dropdown-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.notif-dropdown-header a {
  font-size: 0.78rem;
  font-weight: 400;
}

.notif-item {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  display: block;
  transition: background var(--transition);
  text-decoration: none;
  color: var(--color-text);
}

.notif-item:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.notif-item.unread {
  background: var(--color-primary-light);
}

.notif-item-title {
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 2px;
}

.notif-item-time {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.notif-empty {
  padding: 30px 16px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

@media (max-width: 480px) {
  .notif-dropdown {
    width: 280px;
    left: auto;
    right: -10px;
    transform: none;
  }

  html[dir="rtl"] .notif-dropdown {
    right: auto;
    left: -10px;
    transform: none;
  }
}

/* ===== Notification Page ===== */
.notif-page-list {
  max-width: 700px;
}

.notif-page-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 12px;
  transition: border-color var(--transition);
}

.notif-page-item.unread {
  border-inline-start: 3px solid var(--color-primary);
}

.notif-page-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.notif-page-title a {
  color: var(--color-text);
}

.notif-page-title a:hover {
  color: var(--color-primary);
}

.notif-page-body {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.notif-page-time {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ===== Certificate Page ===== */
.certificate-wrapper {
  max-width: 700px;
  margin: 0 auto;
}

.certificate-card {
  background: var(--color-surface);
  border: 2px solid transparent;
  background-clip: padding-box;
  border-image: linear-gradient(135deg, var(--color-primary), var(--color-accent)) 1;
  border-radius: 0;
  padding: 48px 40px;
  text-align: center;
}

.cert-badge {
  font-size: 3.5rem;
  margin-bottom: 12px;
}

.certificate-card h1 {
  font-size: 1.5rem;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.cert-subtitle {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.cert-name {
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.cert-for {
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.cert-course {
  font-size: 1.3rem;
  margin-bottom: 24px;
}

.cert-meta {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 20px;
}

.cert-label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.cert-value {
  font-size: 0.95rem;
  font-weight: 600;
}

.cert-verified {
  font-size: 0.88rem;
  color: var(--color-success);
  margin-top: 8px;
}

@media print {

  .navbar,
  .footer,
  .back-link,
  .skip-link,
  .btn {
    display: none !important;
  }

  .certificate-card {
    border: 2px solid #6c5ce7;
  }

  body {
    background: #fff;
    color: #000;
  }
}

/* ===== Lesson Progress Bar ===== */
.progress-bar-wrapper {
  margin-bottom: 24px;
}

.progress-bar-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.progress-bar-track {
  height: 10px;
  background: var(--color-border);
  border-radius: 99px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 99px;
  transition: width 0.5s ease;
}

/* ===== Lesson Complete Button ===== */
.lesson-complete-btn {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  cursor: pointer;
  font-size: 0.82rem;
  transition: all var(--transition);
}

.lesson-complete-btn.completed {
  background: var(--color-success-bg);
  border-color: var(--color-success);
  color: var(--color-success);
}

.lesson-complete-btn:hover {
  border-color: var(--color-primary);
}

/* ===== Form Row ===== */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .cert-meta {
    flex-direction: column;
    gap: 12px;
  }
}

/* ===== Pagination ===== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.page-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.page-link.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  font-weight: 600;
}

.page-dots {
  color: var(--color-text-muted);
  padding: 0 4px;
}