/* =====================================================
   LinkupTEC Streaming IPTV - Style
   Palette: Palantir-style dark navy + glassmorphism
   ===================================================== */

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

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2236;
  --bg-glass: rgba(26, 34, 54, 0.6);
  --border: rgba(148, 163, 184, 0.1);
  --border-hover: rgba(56, 189, 248, 0.3);
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #38bdf8;
  --accent-hover: #0ea5e9;
  --accent-glow: rgba(56, 189, 248, 0.15);
  --magenta: #e879f9;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 10px;
  --radius-sm: 8px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
  font-family: 'Montserrat', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-weight: 400;
  line-height: 1.5;
  min-height: 100vh;
}

body {
  background:
    radial-gradient(ellipse at top left, rgba(56, 189, 248, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(232, 121, 249, 0.06) 0%, transparent 50%),
    var(--bg-primary);
}

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

code, .mono { font-family: 'JetBrains Mono', monospace; font-size: 0.9em; }

/* ========== HEADER ========== */
.header {
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.nav { display: flex; gap: 6px; align-items: center; }
.nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
}
.nav a:hover, .nav a.active {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.user-menu { display: flex; align-items: center; gap: 12px; }

/* ========== CONTAINER ========== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

/* ========== FILTERS ========== */
.filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  padding: 16px;
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.filter-group { flex: 1; min-width: 180px; }

.filter-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.input, .select {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  transition: var(--transition);
}

.input:focus, .select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-box { position: relative; }
.search-box .input { padding-left: 38px; }
.search-box::before {
  content: "🔍";
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.5;
  pointer-events: none;
}

/* ========== CHANNEL GRID ========== */
.channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.channel-card {
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.channel-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.channel-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: var(--transition);
}

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

.channel-logo {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  overflow: hidden;
  position: relative;
}

.channel-logo img {
  max-width: 80%;
  max-height: 80%;
  object-fit: contain;
}

.channel-logo-placeholder {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-muted);
  letter-spacing: -1px;
}

.channel-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.channel-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.channel-flag { font-size: 0.95rem; }

.fav-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(10, 14, 26, 0.7);
  backdrop-filter: blur(4px);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 2;
  font-size: 0.95rem;
}

.fav-btn:hover { background: var(--bg-tertiary); }
.fav-btn.active { color: var(--magenta); border-color: var(--magenta); }

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--accent);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); }
.btn-secondary:hover { background: var(--bg-glass); color: var(--text-primary); }
.btn-danger { background: var(--danger); color: white; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

/* ========== PLAYER MODAL ========== */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.active { display: flex; }

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 1100px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-shrink: 0;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover { background: var(--danger); }

.player-wrap {
  position: relative;
  width: 100%;
  background: #000;
  flex: 1 1 auto;
  min-height: 0;          /* permite que flex shrink funcione */
  display: flex;
  align-items: center;
  justify-content: center;
}

.player-wrap video {
  width: 100%;
  height: 100%;
  max-height: 100%;
  display: block;
  object-fit: contain;    /* mantiene proporción sin recortar controles */
}

.player-info {
  padding: 16px 20px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-secondary);
  flex-shrink: 0;
}

/* ========== STATES ========== */
.empty-state, .loading {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state .icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.5; }

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 12px;
}

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

/* ========== ALERTS ========== */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  border: 1px solid;
  font-size: 0.9rem;
}

.alert-success { background: rgba(16, 185, 129, 0.1); border-color: var(--success); color: var(--success); }
.alert-danger { background: rgba(239, 68, 68, 0.1); border-color: var(--danger); color: var(--danger); }
.alert-info { background: rgba(56, 189, 248, 0.1); border-color: var(--accent); color: var(--accent); }

/* ========== AUTH FORMS ========== */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 420px;
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.btn-block { width: 100%; justify-content: center; }

.auth-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ========== TABLES (admin) ========== */
.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-glass);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.table th, .table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.table th {
  background: var(--bg-tertiary);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
}

.table tr:last-child td { border-bottom: none; }
.table tr:hover { background: rgba(56, 189, 248, 0.03); }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge-info { background: rgba(56, 189, 248, 0.15); color: var(--accent); }
.badge-secondary { background: var(--bg-tertiary); color: var(--text-secondary); }

/* ========== STATS CARDS ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .container { padding: 16px; }
  .channels-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
  .nav span { display: none; }
  .filters { padding: 12px; }
  .filter-group { min-width: 140px; }
}