/**
 * Festival Admin - Design System
 * Tokens de diseño y estilos base
 */

/* ===========================
   DESIGN TOKENS
   =========================== */

:root {
  /* Colors - Primary */
  --color-primary-50: #EEF2FF;
  --color-primary-100: #E0E7FF;
  --color-primary-200: #C7D2FE;
  --color-primary-300: #A5B4FC;
  --color-primary-400: #818CF8;
  --color-primary-500: #6366F1;
  --color-primary-600: #4F46E5;
  --color-primary-700: #4338CA;
  --color-primary-800: #3730A3;
  --color-primary-900: #312E81;

  /* Colors - Success */
  --color-success-50: #ECFDF5;
  --color-success-500: #10B981;
  --color-success-600: #059669;

  /* Colors - Warning */
  --color-warning-50: #FFFBEB;
  --color-warning-500: #F59E0B;
  --color-warning-600: #D97706;

  /* Colors - Danger */
  --color-danger-50: #FEF2F2;
  --color-danger-500: #EF4444;
  --color-danger-600: #DC2626;

  /* Colors - Neutral */
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* Dark Mode Base */
  --color-dark-bg: #0F172A;
  --color-dark-surface: #1E293B;
  --color-dark-surface-2: #334155;
  --color-dark-border: #475569;

  /* 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;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  /* Borders */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-glow: 0 0 30px -5px var(--color-primary-500);

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

  /* Z-index */
  --z-dropdown: 100;
  --z-modal: 200;
  --z-toast: 300;
}

/* ===========================
   RESET & BASE
   =========================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-gray-100);
  background: var(--color-dark-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===========================
   TYPOGRAPHY
   =========================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--leading-tight);
  color: white;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  margin-bottom: var(--space-md);
  color: var(--color-gray-300);
}

a {
  color: var(--color-primary-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-300);
}

/* ===========================
   LAYOUT
   =========================== */

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

.grid {
  display: grid;
  gap: var(--space-lg);
}

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

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

.flex {
  display: flex;
}

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

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

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* ===========================
   CARDS
   =========================== */

.card {
  background: var(--color-dark-surface);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-500);
}

.card-glass {
  background: rgba(30, 41, 59, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

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

.card-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: white;
}

/* ===========================
   BUTTONS
   =========================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  color: white;
  box-shadow: var(--shadow-md), 0 0 20px -5px var(--color-primary-500);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-primary-400), var(--color-primary-500));
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg), 0 0 30px -5px var(--color-primary-500);
}

.btn-secondary {
  background: var(--color-dark-surface-2);
  color: var(--color-gray-100);
  border: 1px solid var(--color-dark-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-dark-border);
  border-color: var(--color-gray-400);
}

.btn-success {
  background: linear-gradient(135deg, var(--color-success-500), var(--color-success-600));
  color: white;
}

.btn-success:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg), 0 0 20px -5px var(--color-success-500);
}

.btn-danger {
  background: linear-gradient(135deg, var(--color-danger-500), var(--color-danger-600));
  color: white;
}

.btn-danger:hover:not(:disabled) {
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-gray-300);
}

.btn-ghost:hover {
  background: var(--color-dark-surface-2);
  color: white;
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-base);
}

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-xs);
}

.btn-icon {
  padding: var(--space-sm);
  aspect-ratio: 1;
}

/* ===========================
   FORMS
   =========================== */

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-300);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: white;
  background: var(--color-dark-surface);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-input::placeholder {
  color: var(--color-gray-500);
}

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

.form-hint {
  margin-top: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.form-error {
  margin-top: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--color-danger-500);
}

/* ===========================
   BADGES
   =========================== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
}

.badge-primary {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
}

.badge-success {
  background: var(--color-success-50);
  color: var(--color-success-600);
}

.badge-warning {
  background: var(--color-warning-50);
  color: var(--color-warning-600);
}

.badge-danger {
  background: var(--color-danger-50);
  color: var(--color-danger-600);
}

.badge-neutral {
  background: var(--color-gray-100);
  color: var(--color-gray-600);
}

/* Dark badges */
.badge-dark {
  background: var(--color-dark-surface-2);
  color: var(--color-gray-300);
}

.badge-success-dark {
  background: rgba(16, 185, 129, 0.2);
  color: var(--color-success-500);
}

.badge-warning-dark {
  background: rgba(245, 158, 11, 0.2);
  color: var(--color-warning-500);
}

.badge-danger-dark {
  background: rgba(239, 68, 68, 0.2);
  color: var(--color-danger-500);
}

/* ===========================
   TABLES
   =========================== */

.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-dark-border);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.table th,
.table td {
  padding: var(--space-md);
  text-align: left;
}

.table th {
  background: var(--color-dark-surface-2);
  font-weight: 600;
  color: var(--color-gray-300);
  border-bottom: 1px solid var(--color-dark-border);
}

.table td {
  border-bottom: 1px solid var(--color-dark-border);
  color: var(--color-gray-100);
}

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

.table tr:hover td {
  background: rgba(99, 102, 241, 0.05);
}

/* ===========================
   ALERTS
   =========================== */

.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
}

.alert-success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--color-success-500);
  color: var(--color-success-500);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid var(--color-warning-500);
  color: var(--color-warning-500);
}

.alert-danger {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--color-danger-500);
  color: var(--color-danger-500);
}

.alert-info {
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid var(--color-primary-500);
  color: var(--color-primary-400);
}

/* ===========================
   STATS CARDS
   =========================== */

.stat-card {
  background: var(--color-dark-surface);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  text-align: center;
}

.stat-value {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-xs);
  background: linear-gradient(135deg, var(--color-primary-400), var(--color-primary-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===========================
   NAVIGATION
   =========================== */

.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-dropdown);
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-dark-border);
  padding: var(--space-md) 0;
}

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

.navbar-logo {
  font-size: var(--text-xl);
  font-weight: 700;
  color: white;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.navbar-logo span {
  background: linear-gradient(135deg, var(--color-primary-400), var(--color-primary-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-menu {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.navbar-link {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-gray-300);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.navbar-link:hover,
.navbar-link.active {
  color: white;
  background: var(--color-dark-surface-2);
}

/* ===========================
   SIDEBAR (Admin)
   =========================== */

.admin-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: var(--color-dark-surface);
  border-right: 1px solid var(--color-dark-border);
  padding: var(--space-lg);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-logo {
  font-size: var(--text-xl);
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-dark-border);
}

.sidebar-menu {
  list-style: none;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  color: var(--color-gray-400);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xs);
  transition: all var(--transition-fast);
}

.sidebar-link:hover,
.sidebar-link.active {
  color: white;
  background: var(--color-primary-600);
}

.sidebar-section {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.main-content {
  flex: 1;
  margin-left: 260px;
  padding: var(--space-xl);
}

@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: var(--z-modal);
  }

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

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

/* ===========================
   HERO SECTION
   =========================== */

.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
}

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

.hero-title {
  font-size: var(--text-5xl);
  font-weight: 800;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, white 0%, var(--color-gray-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-gray-400);
  margin-bottom: var(--space-2xl);
}

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

/* ===========================
   GALLERY
   =========================== */

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

.gallery-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}

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

.gallery-item:hover img,
.gallery-item:hover video {
  transform: scale(1.05);
}

.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-normal);
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
}

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

/* ===========================
   MODAL
   =========================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal {
  background: var(--color-dark-surface);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-xl);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

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

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

.modal-title {
  font-size: var(--text-lg);
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--color-gray-400);
  cursor: pointer;
  padding: var(--space-sm);
  font-size: var(--text-xl);
  line-height: 1;
}

.modal-close:hover {
  color: white;
}

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

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

/* ===========================
   LOADING STATES
   =========================== */

.skeleton {
  background: linear-gradient(90deg, var(--color-dark-surface) 25%, var(--color-dark-surface-2) 50%, var(--color-dark-surface) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-md);
}

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

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-dark-border);
  border-top-color: var(--color-primary-500);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ===========================
   EMPTY STATES
   =========================== */

.empty-state {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--color-gray-400);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: var(--space-lg);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--text-xl);
  color: var(--color-gray-300);
  margin-bottom: var(--space-sm);
}

.empty-state-text {
  font-size: var(--text-sm);
  margin-bottom: var(--space-lg);
}

/* ===========================
   QR CODE
   =========================== */

.qr-container {
  background: white;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  display: inline-block;
}

.qr-container img {
  display: block;
}

/* ===========================
   UTILITIES
   =========================== */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.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); }

.hidden { display: none; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===========================
   RESPONSIVE
   =========================== */

@media (max-width: 768px) {
  :root {
    --text-5xl: 2.25rem;
    --text-4xl: 1.875rem;
    --text-3xl: 1.5rem;
  }

  .hero {
    min-height: 60vh;
    padding: var(--space-2xl) var(--space-md);
  }

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

  .btn-lg {
    width: 100%;
  }
}