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

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

/* ─── Design Tokens ─── */
:root {
  /* Colors — Dark Theme */
  --bg-primary: #06060a;
  --bg-secondary: #0d0d14;
  --bg-tertiary: #13131d;
  --bg-card: rgba(18, 18, 30, 0.7);
  --bg-card-hover: rgba(25, 25, 42, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-hover: rgba(255, 255, 255, 0.06);
  --bg-input: rgba(255, 255, 255, 0.05);

  /* Brand Colors */
  --accent-purple: #8b5cf6;
  --accent-purple-light: #a78bfa;
  --accent-cyan: #06b6d4;
  --accent-cyan-light: #22d3ee;
  --accent-pink: #ec4899;
  --accent-green: #10b981;
  --accent-orange: #f59e0b;
  --accent-red: #ef4444;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #8b5cf6, #06b6d4);
  --gradient-secondary: linear-gradient(135deg, #ec4899, #8b5cf6);
  --gradient-warm: linear-gradient(135deg, #f59e0b, #ec4899);
  --gradient-cool: linear-gradient(135deg, #06b6d4, #10b981);
  --gradient-bg: linear-gradient(180deg, #06060a 0%, #0d0d14 50%, #13131d 100%);
  --gradient-hero: radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.15) 0%, transparent 60%);

  /* Text Colors */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-muted: #475569;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-light: rgba(255, 255, 255, 0.1);
  --border-accent: rgba(139, 92, 246, 0.3);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);
  --shadow-glow-purple: 0 0 30px rgba(139, 92, 246, 0.2);
  --shadow-glow-cyan: 0 0 30px rgba(6, 182, 212, 0.2);

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

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Sidebar */
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--accent-purple-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-cyan-light);
}

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

/* ─── Scrollbar ─── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--text-tertiary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* ─── Typography ─── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; font-weight: 800; }
h2 { font-size: 2rem; font-weight: 700; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-muted {
  color: var(--text-secondary);
}

/* ─── Layout Containers ─── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-sm {
  max-width: 640px;
}

.container-lg {
  max-width: 1440px;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.65rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0);
  transition: background var(--transition-fast);
}

.btn:hover::before {
  background: rgba(255, 255, 255, 0.1);
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-glow-purple);
}

.btn-primary:hover {
  box-shadow: 0 0 40px rgba(139, 92, 246, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.1);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-red);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.25);
  border-color: var(--accent-red);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.btn-sm {
  padding: 0.4rem 0.9rem;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 1rem;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* ─── Form Elements ─── */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.02em;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--transition-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.05);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 2.5rem;
}

.form-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* ─── Cards ─── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  backdrop-filter: blur(20px);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

.card-glass {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

/* ─── Stats Card ─── */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stat-card.purple::before { background: var(--gradient-primary); }
.stat-card.pink::before { background: var(--gradient-secondary); }
.stat-card.cyan::before { background: var(--gradient-cool); }
.stat-card.orange::before { background: var(--gradient-warm); }

.stat-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-light);
  box-shadow: var(--shadow-lg);
}

.stat-card .stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.3rem;
}

.stat-card.purple .stat-icon { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }
.stat-card.pink .stat-icon { background: rgba(236, 72, 153, 0.15); color: var(--accent-pink); }
.stat-card.cyan .stat-icon { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); }
.stat-card.orange .stat-icon { background: rgba(245, 158, 11, 0.15); color: var(--accent-orange); }

.stat-card .stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 2px;
}

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

.stat-card .stat-change {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: var(--space-sm);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.stat-change.up {
  color: var(--accent-green);
  background: rgba(16, 185, 129, 0.1);
}

.stat-change.down {
  color: var(--accent-red);
  background: rgba(239, 68, 68, 0.1);
}

/* ─── Sidebar ─── */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-subtle);
  padding: var(--space-xl) 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform var(--transition-base);
}

.sidebar-logo {
  padding: 0 var(--space-xl);
  margin-bottom: var(--space-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.sidebar-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.sidebar-logo .logo-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 var(--space-md);
}

.nav-section-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: var(--space-md) var(--space-md) var(--space-sm);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 0.7rem var(--space-md);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-decoration: none;
  position: relative;
}

.nav-link i {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.nav-link.active {
  color: var(--accent-purple-light);
  background: rgba(139, 92, 246, 0.1);
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--gradient-primary);
  border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

.sidebar-footer {
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.sidebar-user .user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

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

.sidebar-user .user-name {
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user .user-role {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

/* ─── Main Content ─── */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.content-header {
  padding: var(--space-xl) var(--space-2xl);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  background: rgba(6, 6, 10, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.content-header h1 {
  font-size: 1.5rem;
}

.content-header .header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.content-body {
  padding: var(--space-2xl);
}

/* ─── Table ─── */
.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table-header {
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.table-header h3 {
  font-size: 1.1rem;
}

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

thead th {
  padding: var(--space-md) var(--space-xl);
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-subtle);
}

tbody td {
  padding: var(--space-md) var(--space-xl);
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

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

tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

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

/* ─── Badges ─── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

.badge-purple {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple-light);
}

.badge-green {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
}

.badge-cyan {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
}

.badge-orange {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-orange);
}

.badge-red {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-red);
}

.badge-pink {
  background: rgba(236, 72, 153, 0.15);
  color: var(--accent-pink);
}

/* ─── Modal ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(10px);
  transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: var(--space-xl);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.15rem;
}

.modal-body {
  padding: var(--space-xl);
}

.modal-footer {
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
}

/* ─── Toast Notifications ─── */
.toast-container {
  position: fixed;
  top: var(--space-xl);
  right: var(--space-xl);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  max-width: 420px;
  animation: slideInRight 0.4s var(--transition-spring);
  backdrop-filter: blur(20px);
}

.toast.success { border-left: 3px solid var(--accent-green); }
.toast.error { border-left: 3px solid var(--accent-red); }
.toast.warning { border-left: 3px solid var(--accent-orange); }
.toast.info { border-left: 3px solid var(--accent-cyan); }

.toast-message {
  flex: 1;
  font-size: 0.875rem;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 4px;
  transition: color var(--transition-fast);
}

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

/* ─── Search Bar ─── */
.search-bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0 var(--space-md);
  transition: all var(--transition-base);
}

.search-bar:focus-within {
  border-color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.05);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.search-bar i {
  color: var(--text-muted);
  flex-shrink: 0;
}

.search-bar input {
  flex: 1;
  padding: 0.65rem 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.875rem;
}

.search-bar input::placeholder {
  color: var(--text-muted);
}

/* ─── Empty State ─── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
}

.empty-state .empty-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-xl);
  background: var(--bg-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-xl);
  font-size: 2rem;
  color: var(--text-muted);
}

.empty-state h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.15rem;
}

.empty-state p {
  color: var(--text-tertiary);
  font-size: 0.9rem;
  max-width: 400px;
  margin-bottom: var(--space-xl);
}

/* ─── Grid Layouts ─── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

/* ─── Album Card ─── */
.album-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  group: true;
}

.album-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-purple);
  box-shadow: var(--shadow-glow-purple);
}

.album-card .album-cover {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--bg-tertiary);
  position: relative;
  overflow: hidden;
}

.album-card .album-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.album-card .album-cover .album-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 6, 10, 0.8) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--space-lg);
}

.album-card:hover .album-cover .album-overlay {
  opacity: 1;
}

.album-card .album-info {
  padding: var(--space-lg);
}

.album-card .album-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.album-card .album-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.album-card .album-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ─── Activity Timeline ─── */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  position: relative;
}

.timeline-item:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 42px;
  bottom: 0;
  width: 1px;
  background: var(--border-subtle);
}

.timeline-dot {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.8rem;
}

.timeline-dot.purple { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }
.timeline-dot.green { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }
.timeline-dot.cyan { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); }
.timeline-dot.pink { background: rgba(236, 72, 153, 0.15); color: var(--accent-pink); }

.timeline-content {
  flex: 1;
  min-width: 0;
}

.timeline-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.timeline-text strong {
  color: var(--text-primary);
}

.timeline-time {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ─── Chart (CSS only) ─── */
.chart-bar-container {
  display: flex;
  align-items: flex-end;
  gap: var(--space-sm);
  height: 160px;
  padding-top: var(--space-md);
}

.chart-bar {
  flex: 1;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: var(--gradient-primary);
  min-height: 8px;
  position: relative;
  transition: all var(--transition-base);
  opacity: 0.7;
}

.chart-bar:hover {
  opacity: 1;
  transform: scaleY(1.05);
  transform-origin: bottom;
}

.chart-bar .bar-label {
  position: absolute;
  bottom: -24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.chart-bar .bar-value {
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.chart-bar:hover .bar-value {
  opacity: 1;
}

/* ─── Gallery Grid ─── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-md);
}

.gallery-item {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
}

.gallery-item:hover {
  transform: scale(1.02);
  border-color: var(--accent-purple);
  box-shadow: var(--shadow-glow-purple);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-item .gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay .gallery-actions {
  display: flex;
  gap: var(--space-sm);
}

/* ─── Lightbox ─── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.lightbox-close {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: white;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: white;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
  z-index: 10;
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev { left: var(--space-xl); }
.lightbox-next { right: var(--space-xl); }

/* ─── Animations ─── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-100px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

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

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(139, 92, 246, 0.2); }
  50% { box-shadow: 0 0 40px rgba(139, 92, 246, 0.4); }
}

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

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-fadeIn { animation: fadeIn 0.5s ease forwards; }
.animate-fadeInUp { animation: fadeInUp 0.5s ease forwards; }
.animate-fadeInDown { animation: fadeInDown 0.5s ease forwards; }
.animate-scaleIn { animation: scaleIn 0.4s ease forwards; }

.animate-delay-1 { animation-delay: 0.1s; opacity: 0; }
.animate-delay-2 { animation-delay: 0.2s; opacity: 0; }
.animate-delay-3 { animation-delay: 0.3s; opacity: 0; }
.animate-delay-4 { animation-delay: 0.4s; opacity: 0; }

/* ─── Loading Skeleton ─── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, rgba(255, 255, 255, 0.05) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ─── Page Specific — Login ─── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.login-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
}

.login-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(236, 72, 153, 0.05) 0%, transparent 40%);
  animation: gradient-shift 15s ease infinite;
  background-size: 200% 200%;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.6s ease;
}

.login-card .login-logo {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.login-card .login-logo .logo-icon {
  width: 64px;
  height: 64px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  font-size: 1.8rem;
  animation: pulse-glow 3s ease infinite;
}

.login-card .login-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.login-card .login-subtitle {
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

/* ─── Page Specific — Landing ─── */
.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-lg) var(--space-2xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(6, 6, 10, 0.7);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.landing-nav .nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.landing-nav .nav-brand .brand-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.landing-nav .nav-brand .brand-text {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.landing-nav .nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.landing-nav .nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.landing-nav .nav-links a:hover {
  color: var(--text-primary);
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 40%),
    radial-gradient(ellipse at 80% 80%, rgba(236, 72, 153, 0.08) 0%, transparent 40%);
}

.hero-bg .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float 8s ease-in-out infinite;
}

.hero-bg .orb-1 {
  width: 400px;
  height: 400px;
  background: rgba(139, 92, 246, 0.12);
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.hero-bg .orb-2 {
  width: 300px;
  height: 300px;
  background: rgba(6, 182, 212, 0.1);
  bottom: 20%;
  right: 15%;
  animation-delay: 3s;
}

.hero-bg .orb-3 {
  width: 250px;
  height: 250px;
  background: rgba(236, 72, 153, 0.08);
  top: 40%;
  right: 30%;
  animation-delay: 5s;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-header h2 {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 500px;
  margin: 0 auto;
}

/* ─── Footer ─── */
.footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

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

/* ─── Confirm Dialog ─── */
.confirm-dialog .modal {
  max-width: 400px;
  text-align: center;
}

.confirm-dialog .confirm-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-red);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  font-size: 1.5rem;
}

.confirm-dialog p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--space-xl);
}

.confirm-dialog .confirm-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}

/* ─── Portal ─── */
.portal-hero {
  padding: 120px 0 var(--space-3xl);
  text-align: center;
  position: relative;
}

.portal-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.12) 0%, transparent 60%);
}

.portal-search {
  max-width: 500px;
  margin: var(--space-xl) auto 0;
}

/* ─── Tabs ─── */
.tabs {
  display: flex;
  gap: 2px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 3px;
  margin-bottom: var(--space-xl);
}

.tab-btn {
  flex: 1;
  padding: 0.6rem var(--space-lg);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.tab-btn.active {
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.tab-btn:hover:not(.active) {
  color: var(--text-primary);
}

/* ─── Mobile Responsive ─── */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.3rem;
  cursor: pointer;
  padding: var(--space-sm);
  position: relative;
  z-index: 100;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

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

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

  .sidebar-overlay.active {
    display: block;
  }

  .admin-layout {
    max-width: 100vw;
    overflow-x: hidden;
  }

  .main-content {
    margin-left: 0;
    max-width: 100vw;
    overflow-x: hidden;
  }

  .content-header {
    padding: var(--space-md) var(--space-lg);
    flex-wrap: wrap;
  }

  .content-body {
    padding: var(--space-md);
    max-width: 100vw;
    overflow-x: hidden;
  }

  .card {
    max-width: 100%;
    overflow: hidden;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

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

  .landing-nav {
    padding: var(--space-md) var(--space-lg);
  }

  .landing-nav .nav-links {
    display: none;
  }

  .landing-nav .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-lg);
  }

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

  table {
    min-width: 600px;
  }

  .login-card {
    margin: var(--space-lg);
    padding: var(--space-2xl);
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .content-header h1 {
    font-size: 1.2rem;
  }
}

/* ─── Utility ─── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.w-full { width: 100%; }
.hidden { display: none !important; }
.relative { position: relative; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }