/* M3U Media Admin – shared styles */
:root {
  --bg-page: #0c1222;
  --bg-card: #151d33;
  --bg-card-header: #1a2744;
  --bg-input: #1e2d4a;
  --border: #2a3a5c;
  --border-focus: #6366f1;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --success: #22c55e;
  --danger: #ef4444;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.25);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.2);
}

* { box-sizing: border-box; }

body {
  background: var(--bg-page);
  background-image: radial-gradient(ellipse at top left, rgba(99, 102, 241, 0.08) 0%, transparent 50%);
  color: var(--text);
  min-height: 100vh;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

/* Navbar */
.admin-navbar {
  background: linear-gradient(180deg, #0f172a 0%, #0c1222 100%) !important;
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}
.admin-navbar .navbar-brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff !important;
  letter-spacing: -0.02em;
}
.admin-navbar .navbar-brand i {
  margin-right: 0.4rem;
  opacity: 0.9;
}
.admin-navbar .btn {
  font-weight: 500;
  border-radius: var(--radius-sm);
}
.admin-navbar .btn-outline-light:hover { background: rgba(255,255,255,0.12); color: #fff; }
.admin-navbar .btn-outline-danger:hover { background: rgba(239,68,68,0.2); color: #f87171; }
.admin-navbar .btn-outline-secondary:hover { background: rgba(148,163,184,0.15); color: #e2e8f0; }

/* Layout */
.admin-layout { padding: 1.5rem 1rem 2rem; max-width: 1400px; margin: 0 auto; }

/* Sidebar */
.admin-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 0.75rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-card);
}
.admin-sidebar .nav-link {
  color: var(--text-muted);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: color 0.15s, background 0.15s;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.admin-sidebar .nav-link i { font-size: 1.1rem; opacity: 0.85; }
.admin-sidebar .nav-link:hover {
  color: var(--text);
  background: rgba(99, 102, 241, 0.1);
}
.admin-sidebar .nav-link.active {
  color: var(--accent);
  background: rgba(99, 102, 241, 0.15);
}
.admin-sidebar .nav-link.active i { opacity: 1; }
.admin-sidebar hr { border-color: var(--border); margin: 0.5rem 0; }

/* Page title */
.page-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.card-header {
  background: var(--bg-card-header);
  color: #f8fafc;
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 1rem;
}
.card-body { padding: 1.25rem 1.5rem; }

/* Dashboard stat cards */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  height: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.stat-card:hover {
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.08);
}
.stat-card .card-title {
  font-size: 1rem;
  font-weight: 600;
  color: #f8fafc;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.stat-card .card-title i { font-size: 1.25rem; }
.stat-card .stat-value {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.stat-card .btn { font-weight: 500; border-radius: var(--radius-sm); }

/* Forms */
.form-label {
  color: var(--text);
  font-weight: 500;
  margin-bottom: 0.4rem;
}
.form-control, .form-select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: #f8fafc;
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.85rem;
}
.form-control::placeholder { color: var(--text-muted); opacity: 0.8; }
.form-control:focus, .form-select:focus {
  background: var(--bg-input);
  border-color: var(--border-focus);
  color: #f8fafc;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
  outline: none;
}
.form-check-input {
  background-color: var(--bg-input);
  border-color: var(--border);
}
.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}
.form-check-input:focus { box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2); }
.form-check-label { color: var(--text); }
.text-muted { color: var(--text-muted) !important; }
small.text-muted { font-size: 0.8rem; }

/* Buttons */
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}
.btn-outline-primary {
  border-color: var(--accent);
  color: var(--accent);
  border-radius: var(--radius-sm);
}
.btn-outline-primary:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--accent);
  color: #a5b4fc;
}
.btn-outline-danger { border-radius: var(--radius-sm); }
.btn-outline-secondary { border-radius: var(--radius-sm); }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.875rem; }

/* Alerts */
.alert {
  border-radius: var(--radius-sm);
  border: none;
  padding: 0.85rem 1.1rem;
}
.alert-success { background: rgba(34, 197, 94, 0.15); color: #4ade80; }
.alert-danger { background: rgba(239, 68, 68, 0.15); color: #f87171; }

/* Tables */
.table {
  color: var(--text);
  --bs-table-bg: transparent;
  --bs-table-border-color: var(--border);
  --bs-table-hover-bg: rgba(99, 102, 241, 0.06);
}
.table-dark {
  --bs-table-bg: var(--bg-card);
  --bs-table-border-color: var(--border);
  --bs-table-hover-bg: rgba(99, 102, 241, 0.08);
}
.table thead th {
  border-bottom-color: var(--border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.75rem 1rem;
}
.table td { padding: 0.75rem 1rem; vertical-align: middle; }
.table tbody tr { border-bottom-color: var(--border); }

/* Code / API box */
code {
  background: var(--bg-input);
  color: #a5b4fc;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  font-size: 0.875rem;
  border: 1px solid var(--border);
}
.card-body code { display: inline-block; margin-top: 0.25rem; }

/* Login & Create admin (standalone pages) */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--bg-page);
  background-image: radial-gradient(ellipse at top left, rgba(99, 102, 241, 0.12) 0%, transparent 50%);
}
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 400px;
  overflow: hidden;
}
.auth-card .card-body { padding: 2rem; }
.auth-card .card-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.auth-card .card-title i { color: var(--accent); }
.auth-card .form-control { margin-bottom: 0.25rem; }
.auth-card .btn-primary {
  padding: 0.65rem;
  font-size: 1rem;
  margin-top: 0.5rem;
}
.auth-card .text-muted { font-size: 0.85rem; }
.auth-card a { color: #93c5fd; text-decoration: none; }
.auth-card a:hover { color: #bfdbfe; text-decoration: underline; }

/* Modals (custom_ads etc.) */
.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
}
.modal-header {
  border-bottom-color: var(--border);
  padding: 1rem 1.25rem;
}
.modal-title { color: #fff; font-weight: 600; }
.modal-body { padding: 1.25rem; }
.modal-footer { border-top-color: var(--border); padding: 1rem 1.25rem; }
.btn-close { filter: invert(1); opacity: 0.7; }
.modal-content .form-control,
.modal-content .form-select { background: var(--bg-input); border-color: var(--border); color: #f8fafc; }
.modal-content .form-control:focus { border-color: var(--border-focus); box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2); }

/* Input group */
.input-group-text {
  background: var(--bg-input);
  border-color: var(--border);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
}

/* Responsive */
@media (max-width: 768px) {
  .admin-layout { padding: 1rem 0.75rem; }
  .page-title { font-size: 1.2rem; }
  .admin-sidebar .nav-link { padding: 0.5rem 0.75rem; font-size: 0.95rem; }
}