/* ====================================================
   VicFlix — Design System & Global Styles
   ==================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ── Variables ── */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161f;
  --bg-card-hover: #1e1e2a;
  --bg-glass: rgba(255,255,255,0.04);
  --bg-glass-hover: rgba(255,255,255,0.08);

  --accent: #e50914;
  --accent-2: #ff6b35;
  --accent-glow: rgba(229, 9, 20, 0.35);
  --accent-gradient: linear-gradient(135deg, #e50914, #ff6b35);

  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b0;
  --text-muted: #606070;

  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.14);

  --badge-velocity: #ff6b35;
  --badge-zdt: #00b4d8;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 32px var(--accent-glow);

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #555; }

/* ======================================================
   NAVBAR
   ====================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 64px;
  background: linear-gradient(to bottom, rgba(10,10,15,0.98) 0%, rgba(10,10,15,0.7) 100%);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10,10,15,0.98);
  border-bottom-color: var(--border-hover);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.navbar-brand .logo-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-brand .logo-icon {
  width: 34px;
  height: 34px;
  background: var(--accent-gradient);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-filter {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-btn {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  border: 1px solid transparent;
}

.nav-btn:hover,
.nav-btn.active {
  color: var(--text-primary);
  background: var(--bg-glass-hover);
  border-color: var(--border-hover);
}

.nav-btn.active {
  color: var(--accent);
  border-color: rgba(229,9,20,0.3);
  background: rgba(229,9,20,0.08);
}

.navbar-search {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  gap: 8px;
  transition: var(--transition);
}

.search-box:focus-within {
  border-color: var(--border-hover);
  background: var(--bg-glass-hover);
}

.search-box input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: inherit;
  width: 180px;
}

.search-box input::placeholder { color: var(--text-muted); }
.search-icon { color: var(--text-muted); font-size: 0.9rem; }

/* ======================================================
   HERO
   ====================================================== */
.hero {
  position: relative;
  padding: 140px 40px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 40%, rgba(229,9,20,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(255,107,53,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 100% 80% at 50% 100%, rgba(0,0,0,0.8) 0%, transparent 60%);
}

.hero-content {
  position: relative;
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(229,9,20,0.15);
  border: 1px solid rgba(229,9,20,0.3);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-2);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease both;
}

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 16px;
  animation: fadeInUp 0.7s ease 0.1s both;
}

.hero h1 .highlight {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin-bottom: 32px;
  animation: fadeInUp 0.7s ease 0.2s both;
}

.hero-stats {
  display: flex;
  gap: 32px;
  animation: fadeInUp 0.7s ease 0.3s both;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ======================================================
   SECTION HEADERS
   ====================================================== */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.section-icon {
  width: 36px;
  height: 36px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.section-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 400;
  font-family: 'Inter', sans-serif;
}

.section-link {
  font-size: 0.82rem;
  color: var(--accent-2);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition-fast);
}

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

/* ======================================================
   MAIN CONTENT
   ====================================================== */
.main-content {
  padding: 0 40px 80px;
}

.category-section {
  margin-bottom: 56px;
}

/* ======================================================
   COURSE GRID
   ====================================================== */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

/* ======================================================
   COURSE CARD
   ====================================================== */
.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.course-card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-card), 0 0 0 1px var(--border-hover);
}

.card-thumbnail {
  position: relative;
  height: 160px;
  overflow: hidden;
  flex-shrink: 0;
}

.card-thumb-bg {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  transition: var(--transition);
}

.course-card:hover .card-thumb-bg { transform: scale(1.08); }

.card-thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(22,22,31,1) 0%, transparent 60%);
}

.card-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 48px;
  height: 48px;
  background: rgba(229,9,20,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  opacity: 0;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}

.course-card:hover .card-play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.badge-velocity {
  background: rgba(255,107,53,0.2);
  color: var(--badge-velocity);
  border: 1px solid rgba(255,107,53,0.3);
}

.badge-zdt {
  background: rgba(0,180,216,0.2);
  color: var(--badge-zdt);
  border: 1px solid rgba(0,180,216,0.3);
}

.card-body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.3;
  color: var(--text-primary);
}

.card-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.card-modules {
  font-size: 0.73rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.card-arrow {
  width: 28px;
  height: 28px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.course-card:hover .card-arrow {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* ======================================================
   PLAYER PAGE
   ====================================================== */
.player-layout {
  display: flex;
  height: 100vh;
  padding-top: 64px;
  overflow: hidden;
}

/* Sidebar */
.player-sidebar {
  width: 320px;
  flex-shrink: 0;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-back {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  transition: var(--transition-fast);
}

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

.sidebar-course-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.sidebar-course-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.sidebar-progress-bar {
  margin-top: 12px;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.sidebar-progress-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 2px;
  transition: width 0.4s ease;
}

.sidebar-modules {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.module-group { margin-bottom: 4px; }

.module-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.module-header:hover { background: var(--bg-glass); }

.module-title-text {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  line-height: 1.3;
}

.module-expand {
  font-size: 0.65rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.module-group.expanded .module-expand { transform: rotate(90deg); }

.module-episodes {
  display: none;
  padding: 0 8px;
}

.module-group.expanded .module-episodes { display: block; }

.episode-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  margin-bottom: 2px;
}

.episode-item:hover { background: var(--bg-glass-hover); }
.episode-item.active { background: rgba(229,9,20,0.12); }
.episode-item.active .episode-title { color: var(--accent-2); }

.episode-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.episode-item.active .episode-num {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

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

.episode-title {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.episode-duration {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Folder Link Items */
.folder-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  margin: 0 8px 2px;
  text-decoration: none;
}

.folder-item:hover { background: var(--bg-glass-hover); }

.folder-icon {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.folder-name {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.3;
}

/* Player Area */
.player-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-primary);
}

.player-video-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow-y: auto;
}

.video-container {
  width: 100%;
  max-width: 960px;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 8px 48px rgba(0,0,0,0.6), 0 0 0 1px var(--border);
  position: relative;
  aspect-ratio: 16/9;
}

.video-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.video-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  background: radial-gradient(ellipse at center, #1a1a2e 0%, #000 100%);
  color: var(--text-muted);
  padding: 48px;
  text-align: center;
}

.video-placeholder-icon { font-size: 4rem; }
.video-placeholder h3 {
  font-size: 1.2rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 8px;
}
.video-placeholder p { font-size: 0.9rem; line-height: 1.5; }

.open-drive-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--accent-gradient);
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
  transition: var(--transition);
  margin-top: 8px;
}

.open-drive-btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.player-info {
  padding: 20px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.player-info-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.player-video-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
}

.player-course-name {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ======================================================
   SEARCH RESULTS
   ====================================================== */
.search-results-section {
  display: none;
  margin-bottom: 56px;
}

.search-results-section.visible { display: block; }

/* ======================================================
   EMPTY STATE
   ====================================================== */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-muted);
}
.empty-icon { font-size: 3rem; margin-bottom: 16px; }

/* ======================================================
   ANIMATIONS
   ====================================================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* Stagger animation for cards */
.course-card:nth-child(1) { animation: fadeInUp 0.5s ease 0.05s both; }
.course-card:nth-child(2) { animation: fadeInUp 0.5s ease 0.10s both; }
.course-card:nth-child(3) { animation: fadeInUp 0.5s ease 0.15s both; }
.course-card:nth-child(4) { animation: fadeInUp 0.5s ease 0.20s both; }
.course-card:nth-child(5) { animation: fadeInUp 0.5s ease 0.25s both; }
.course-card:nth-child(6) { animation: fadeInUp 0.5s ease 0.30s both; }
.course-card:nth-child(n+7) { animation: fadeInUp 0.5s ease 0.35s both; }

/* ======================================================
   RESPONSIVE
   ====================================================== */
@media (max-width: 1024px) {
  .navbar { padding: 0 24px; }
  .hero, .main-content { padding-left: 24px; padding-right: 24px; }
  .player-sidebar { width: 280px; }
}

@media (max-width: 768px) {
  .navbar-nav { display: none; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 20px; }
  .course-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }

  /* Adaptabilidad Móvil Premium para el Reproductor */
  body.player-body {
    overflow-y: auto !important;
    height: auto !important;
  }
  .player-layout {
    flex-direction: column-reverse !important;
    height: auto !important;
    overflow: visible !important;
    padding-top: 64px;
  }
  .player-sidebar {
    width: 100% !important;
    height: auto !important;
    border-right: none !important;
    border-top: 1px solid var(--border) !important;
    overflow: visible !important;
  }
  .sidebar-modules {
    overflow-y: visible !important;
    height: auto !important;
    padding: 12px 16px !important;
  }
  .player-main {
    width: 100% !important;
    height: auto !important;
    overflow: visible !important;
  }
  .player-video-area {
    padding: 12px !important;
    overflow-y: visible !important;
    height: auto !important;
  }
  .video-container {
    border-radius: var(--radius-md) !important;
  }
  .player-info {
    border-bottom: 1px solid var(--border) !important;
  }
}

/* ======================================================
   ADMIN & AUTH STYLES
   ====================================================== */

/* Auth Navbar & Profile */
.navbar-auth {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-btn-auth {
  background: var(--accent-gradient);
  color: white;
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition-fast);
  box-shadow: 0 4px 12px rgba(229,9,20,0.2);
}

.nav-btn-auth:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(229,9,20,0.4);
}

.user-profile {
  position: relative;
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 6px 12px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  transition: var(--transition-fast);
}

.user-profile:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-hover);
}

.user-avatar {
  font-size: 1.1rem;
  margin-right: 6px;
}

.user-info-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-md);
  padding: 14px;
  display: none;
  flex-direction: column;
  gap: 8px;
  min-width: 160px;
  box-shadow: var(--shadow-card);
  z-index: 1001;
}

.user-profile:hover .user-info-dropdown {
  display: flex;
}

.user-name {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.user-role {
  font-size: 0.75rem;
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.dropdown-logout-btn {
  background: rgba(229,9,20,0.1);
  color: var(--accent);
  border: 1px solid rgba(229,9,20,0.25);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: center;
}

.dropdown-logout-btn:hover {
  background: var(--accent);
  color: white;
}

/* Modals System */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 90%;
  max-width: 480px;
  position: relative;
  transform: translateY(-20px);
  transition: transform 0.3s ease;
  box-shadow: var(--shadow-card), 0 0 24px rgba(0,0,0,0.5);
}

.modal-overlay.visible .modal-content {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-content h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Forms styling inside modals */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 8px rgba(255,107,53,0.15);
}

.modal-submit-btn {
  width: 100%;
  background: var(--accent-gradient);
  color: white;
  border-radius: var(--radius-sm);
  padding: 12px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 10px;
  transition: var(--transition-fast);
}

.modal-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.demo-credentials {
  margin-top: 20px;
  padding: 12px;
  background: rgba(255,255,255,0.02);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
}

/* Admin controls for courses */
.admin-action-btn {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.admin-action-btn:hover {
  background: var(--accent-gradient);
  color: white;
  border-color: transparent;
  transform: translateY(-2px);
}

.card-admin-actions {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 6px;
  z-index: 10;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.course-card:hover .card-admin-actions {
  opacity: 1;
}

.card-admin-btn {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: rgba(0,0,0,0.85);
  border: 1px solid var(--border);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  cursor: pointer;
  transition: var(--transition-fast);
  backdrop-filter: blur(4px);
}

.card-admin-btn:hover {
  transform: scale(1.1);
}

.card-admin-btn.edit-btn:hover {
  color: var(--accent-2);
  border-color: var(--accent-2);
}

.card-admin-btn.delete-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}