/* ─── CSS Variables ──────────────────────────────────────────────────────── */
:root {
  --bg-primary: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --bg-card: #1e1e1e;
  --bg-elevated: #242424;
  --bg-hover: #2a2a2a;
  --border-color: #333;
  --border-light: #444;

  --text-primary: #f0f0f0;
  --text-secondary: #aaa;
  --text-muted: #666;
  --text-inverse: #fff;

  --accent: #2196F3;
  --accent-hover: #1976D2;
  --accent-light: rgba(33, 150, 243, 0.15);

  --success: #4CAF50;
  --success-bg: rgba(76, 175, 80, 0.15);
  --warning: #ff9800;
  --warning-bg: rgba(255, 152, 0, 0.15);
  --danger: #f44336;
  --danger-bg: rgba(244, 67, 54, 0.15);
  --info: #00bcd4;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;

  --transition: 0.2s ease;
}

/* ─── Light theme ────────────────────────────────────────────────────────── */
[data-theme="light"] {
  --bg-primary: #f0f2f5;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-elevated: #f5f7fa;
  --bg-hover: #e8edf3;
  --border-color: #dde1e7;
  --border-light: #c8cdd5;

  --text-primary: #1a1d23;
  --text-secondary: #555b6a;
  --text-muted: #8a929f;
  --text-inverse: #000;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
}

[data-theme="light"] ::-webkit-scrollbar-track { background: #f0f2f5; }
[data-theme="light"] ::-webkit-scrollbar-thumb { background: #c8cdd5; }
[data-theme="light"] ::-webkit-scrollbar-thumb:hover { background: #a0a8b5; }

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

img, video, iframe {
  max-width: 100%;
  display: block;
}

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

ul, ol { list-style: none; }

input, textarea, select, button {
  font-family: inherit;
  font-size: inherit;
}

/* ─── Typography ─────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p { line-height: 1.6; }

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-center { text-align: center; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.font-bold { font-weight: 700; }

/* ─── Layout Helpers ─────────────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-sm {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 20px;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.flex-1 { flex: 1; }
.gap-4 { gap: 4px; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.flex-wrap { flex-wrap: wrap; }

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

.w-full { width: 100%; }
.h-full { height: 100%; }

.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-4 { margin-bottom: 4px; }
.mb-8 { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

.p-8 { padding: 8px; }
.p-12 { padding: 12px; }
.p-16 { padding: 16px; }
.p-24 { padding: 24px; }

.hidden { display: none !important; }
.visible { display: block; }
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

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

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}
.btn-secondary:hover:not(:disabled) { background: var(--bg-hover); }

.btn-success {
  background: var(--success);
  color: #fff;
}
.btn-success:hover:not(:disabled) { background: #43a047; }

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover:not(:disabled) { background: #d32f2f; }

.btn-warning {
  background: var(--warning);
  color: #000;
}
.btn-warning:hover:not(:disabled) { background: #f57c00; }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
}
.btn-ghost:hover:not(:disabled) { background: var(--bg-hover); color: var(--text-primary); }

.btn-sm {
  padding: 5px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 12px 28px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-icon {
  padding: 8px;
  border-radius: 50%;
  width: 38px;
  height: 38px;
}

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

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-control {
  padding: 10px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}
.form-control::placeholder { color: var(--text-muted); }
.form-control:disabled { opacity: 0.5; cursor: not-allowed; }

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

select.form-control {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='%23aaa'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  appearance: none;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-error {
  font-size: 0.75rem;
  color: var(--danger);
}

.form-success {
  font-size: 0.75rem;
  color: var(--success);
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin-top: 2px;
  accent-color: var(--accent);
  cursor: pointer;
}

.radio-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.radio-label input[type="radio"] {
  accent-color: var(--accent);
  cursor: pointer;
}

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color var(--transition);
}

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

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
}

/* ─── Badges ─────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-type { background: var(--bg-elevated); color: var(--text-secondary); border: 1px solid var(--border-color); }
.badge-online { background: var(--bg-elevated); color: var(--text-secondary); border: 1px solid var(--border-color); }
.badge-offline { background: var(--bg-elevated); color: var(--text-secondary); border: 1px solid var(--border-color); }
.badge-hybrid { background: var(--bg-elevated); color: var(--text-secondary); border: 1px solid var(--border-color); }
.badge-open { background: var(--danger-bg); color: var(--danger); animation: pulse 2s infinite; }
.badge-draft { background: var(--bg-elevated); color: var(--text-muted); }
.badge-published { background: var(--success-bg); color: var(--success); }
.badge-finished { background: var(--bg-elevated); color: var(--text-muted); }
.badge-scheduled { background: var(--warning-bg); color: var(--warning); }
.badge-paused { background: var(--danger-bg); color: var(--danger); }
.badge-paid { background: var(--success-bg); color: var(--success); }
.badge-pending { background: var(--warning-bg); color: var(--warning); }
.badge-failed { background: var(--danger-bg); color: var(--danger); }
.badge-not_required { background: var(--bg-elevated); color: var(--text-muted); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* ─── Alerts ─────────────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(76,175,80,0.3); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(255,152,0,0.3); }
.alert-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(244,67,54,0.3); }
.alert-info { background: var(--accent-light); color: var(--accent); border: 1px solid rgba(33,150,243,0.3); }

/* ─── Navbar ─────────────────────────────────────────────────────────────── */
.navbar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 20px;
}

.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}
.navbar-brand:hover { color: var(--accent); }

.navbar-brand-logo {
  width: 56px;
  height: 56px;
  object-fit: contain;
  flex-shrink: 0;
}

[data-theme="dark"] .navbar-brand-logo {
  filter: brightness(0) invert(1);
}

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

/* ─── Page header ────────────────────────────────────────────────────────── */
.page-header {
  padding: 40px 0 24px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 32px;
}

.page-header h1 { margin-bottom: 8px; }

/* ─── Events grid ────────────────────────────────────────────────────────── */
.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.event-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  display: block;
  color: inherit;
}

.event-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.event-card-cover {
  margin: -20px -20px 12px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--bg-elevated);
}

.event-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.event-card-header {
  margin-bottom: 12px;
}

.event-card-title {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.3;
}

.event-card-type {
  margin-top: 8px;
}

.event-card .badge {
  display: inline-block;
}

.event-card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.event-card-meta > * + * {
  margin-top: 6px;
}

.event-card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ─── Spinner ────────────────────────────────────────────────────────────── */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 40px auto;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
  margin: 0;
}

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

/* ─── Modal ──────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 28px;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

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

.modal-title { font-size: 1.2rem; font-weight: 600; }

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  transition: color var(--transition);
}
.modal-close:hover { color: var(--text-primary); }

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

/* ─── Table ──────────────────────────────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead {
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
}

th {
  padding: 12px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

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

tbody tr:hover { background: var(--bg-hover); }

/* ─── Tabs ───────────────────────────────────────────────────────────────── */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  gap: 0;
  overflow-x: auto;
}

.tab-btn {
  padding: 10px 20px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition);
  margin-bottom: -1px;
}

.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ─── Progress bar ───────────────────────────────────────────────────────── */
.progress-bar {
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  transition: width 0.5s ease;
}

.progress-fill-success { background: var(--success); }
.progress-fill-warning { background: var(--warning); }

/* ─── Divider ────────────────────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 20px 0;
}

/* ─── Empty state ────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state p { margin-top: 8px; font-size: 0.9rem; }

/* ─── Toast ──────────────────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: toast-in 0.3s ease;
  max-width: 320px;
}

.toast-success { background: var(--success); color: #fff; }
.toast-error { background: var(--danger); color: #fff; }
.toast-info { background: var(--accent); color: #fff; }
.toast-warning { background: var(--warning); color: #000; }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ─── Loading overlay ────────────────────────────────────────────────────── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,15,15,0.8);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

/* ─── Countdown ──────────────────────────────────────────────────────────── */
.countdown-display {
  text-align: center;
  padding: 40px;
}

.countdown-title {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.countdown-time {
  font-size: 3rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  letter-spacing: 2px;
}

/* ─── Paused banner ──────────────────────────────────────────────────────── */
.paused-banner {
  background: var(--danger-bg);
  border: 1px solid rgba(244,67,54,0.4);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  text-align: center;
  color: var(--danger);
  font-weight: 600;
  font-size: 1rem;
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  .container { padding: 0 14px; }
  .navbar { padding: 0 12px; }
  .navbar-inner { height: 56px; }
  .navbar-brand { gap: 8px; font-size: 0.74rem; }
  .navbar-brand-logo { width: 44px; height: 44px; }
  .navbar-nav .btn { font-size: 0.78rem; padding: 5px 8px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .events-grid { grid-template-columns: 1fr; }
  .modal { padding: 20px; border-radius: var(--radius-lg); }
  .page-header { padding: 24px 0 16px; }
}