/* ===== Admin Shared CSS ===== */
:root {
  --bg: #0f0e0c;
  --bg-card: #1a1814;
  --bg-sidebar: #141210;
  --bg-input: #1e1c19;
  --text: #e8dfd0;
  --text-muted: #8a7e6e;
  --text-faint: #4a4438;
  --accent: #c4976a;
  --accent-dim: #8b6840;
  --accent-glow: rgba(196,151,106,0.12);
  --border: #2a2620;
  --border-light: #342f28;
  --danger: #c0524a;
  --danger-dim: #8b3b35;
  --success: #5a9e6e;
  --font-serif: 'Noto Serif SC', serif;
  --font-display: 'Playfair Display', serif;
  --sidebar-w: 220px;
  --radius: 6px;
  --radius-sm: 4px;
}

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

html, body { height: 100%; }

body {
  font-family: var(--font-serif);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ════════════════════════════════════════════
   LOGIN PAGE
════════════════════════════════════════════ */
body.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(196,151,106,0.05) 0%, transparent 60%),
    var(--bg);
}

.login-wrap {
  width: 100%;
  max-width: 400px;
  padding: 1.5rem;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 2.4rem 2rem 2rem;
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-glow);
  border: 1px solid var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: var(--accent);
  font-size: 1.1rem;
}

.login-header h1 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: 0.1em;
}

.login-header p {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-top: 0.3rem;
}

/* ── Messages ── */
.msg-box {
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  margin-bottom: 1rem;
  letter-spacing: 0.03em;
}

.error-msg {
  background: rgba(192,82,74,0.12);
  border: 1px solid rgba(192,82,74,0.25);
  color: #e08078;
}

.success-msg {
  background: rgba(90,158,110,0.1);
  border: 1px solid rgba(90,158,110,0.2);
  color: #7ec496;
}

/* ── Form Fields ── */
.field-group {
  margin-bottom: 1.1rem;
}

.field-group label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.45rem;
}

.field-group label i {
  color: var(--accent-dim);
  font-size: 0.65rem;
}

.field-group input[type="text"],
.field-group input[type="url"],
.field-group input[type="password"],
.field-group input[type="number"] {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 0.8rem;
  padding: 0.55rem 0.8rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field-group input:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.field-group input::placeholder {
  color: var(--text-faint);
}

/* Captcha row */
.captcha-row .captcha-inline {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.captcha-row .captcha-inline input {
  flex: 1;
}

#captchaCanvas {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  cursor: pointer;
  flex-shrink: 0;
}

.refresh-cap {
  background: none;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  flex-shrink: 0;
}

.refresh-cap:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
}

/* ── Buttons ── */
.login-btn {
  width: 100%;
  background: var(--accent-dim);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  font-family: var(--font-serif);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: background 0.2s, transform 0.15s;
  margin-top: 0.4rem;
}

.login-btn:hover {
  background: var(--accent);
  transform: translateY(-1px);
}

.login-btn:active { transform: translateY(0); }

.login-hint {
  text-align: center;
  font-size: 0.62rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  margin-top: 1.4rem;
}

/* ════════════════════════════════════════════
   ADMIN DASHBOARD
════════════════════════════════════════════ */
body.admin-page {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 100vh;
  overflow: hidden;
}

.sidebar-logo {
  padding: 1.4rem 1.2rem 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  font-weight: 500;
}

.sidebar-logo i { font-size: 1rem; }

.sidebar-nav {
  flex: 1;
  padding: 0.8rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.8rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  transition: background 0.2s, color 0.2s;
}

.nav-item i {
  width: 14px;
  text-align: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.nav-item:hover { background: var(--border); color: var(--text); }

.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(196,151,106,0.15);
}

.sidebar-footer {
  padding: 0.8rem 0.6rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.preview-link, .logout-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-serif);
  width: 100%;
  transition: background 0.2s, color 0.2s;
}

.preview-link i, .logout-btn i { font-size: 0.75rem; width: 14px; }

.preview-link:hover { background: var(--border); color: var(--accent); }

.logout-btn:hover { background: rgba(192,82,74,0.1); color: var(--danger); }

/* ── Main Content ── */
.admin-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg);
}

/* ── Top Bar ── */
.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 50px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-sidebar);
  flex-shrink: 0;
}

.topbar-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.broadcast-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.idle { background: var(--text-faint); }
.status-dot.live {
  background: #5a9e6e;
  box-shadow: 0 0 6px rgba(90,158,110,0.6);
  animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 4px rgba(90,158,110,0.4); }
  50% { box-shadow: 0 0 10px rgba(90,158,110,0.8); }
}

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

/* ── Sections ── */
.admin-section {
  display: none;
  flex: 1;
  overflow-y: auto;
  padding: 1.6rem 1.5rem;
}

.admin-section.active { display: block; }

.section-header {
  margin-bottom: 1.4rem;
}

.section-header h2 {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.section-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem;
  margin-bottom: 1.2rem;
}

.card-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border);
}

.card-head i { color: var(--accent-dim); font-size: 0.7rem; }

.badge {
  background: var(--accent-glow);
  border: 1px solid var(--accent-dim);
  color: var(--accent);
  border-radius: 10px;
  padding: 0 0.45rem;
  font-size: 0.65rem;
  margin-left: auto;
}

.card-actions {
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-serif);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  text-decoration: none;
}

.btn i { font-size: 0.7rem; }

.btn-primary {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  color: #fff;
}
.btn-primary:hover { background: var(--accent); border-color: var(--accent); }

.btn-danger {
  background: var(--danger-dim);
  border-color: var(--danger-dim);
  color: #fff;
}
.btn-danger:hover { background: var(--danger); border-color: var(--danger); }

.btn-ghost {
  background: transparent;
  border-color: var(--border-light);
  color: var(--text-muted);
}
.btn-ghost:hover { border-color: var(--accent-dim); color: var(--accent); }

.btn-add {
  background: var(--accent-glow);
  border: 1px solid var(--accent-dim);
  color: var(--accent);
  flex-shrink: 0;
  align-self: flex-end;
  margin-bottom: 0.05rem;
}
.btn-add:hover { background: var(--accent-dim); color: #fff; }

.btn-broadcast {
  font-size: 0.8rem;
  padding: 0.6rem 1.5rem;
}

.btn-sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.7rem;
}

/* ── Add Video Row ── */
.add-video-row {
  display: flex;
  gap: 0.8rem;
  align-items: flex-end;
}

.flex-1 { flex: 1; }
.flex-2 { flex: 2; }

/* ── Playlist ── */
.playlist-container { min-height: 60px; }

.empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--text-faint);
  font-size: 0.72rem;
  padding: 2rem 0;
  letter-spacing: 0.04em;
}

.empty-state i { font-size: 1.2rem; opacity: 0.4; }

.playlist-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.playlist-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.8rem;
  transition: border-color 0.2s;
}

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

.item-order {
  color: var(--text-faint);
  font-size: 0.65rem;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}

.item-title {
  flex: 1;
  font-size: 0.75rem;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item-url {
  flex: 2;
  font-size: 0.68rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: monospace;
}

.item-actions {
  display: flex;
  gap: 0.3rem;
  flex-shrink: 0;
}

.item-btn {
  background: none;
  border: none;
  color: var(--text-faint);
  cursor: pointer;
  padding: 0.2rem 0.35rem;
  border-radius: 3px;
  font-size: 0.7rem;
  transition: color 0.2s, background 0.2s;
}

.item-btn:hover { background: var(--border); }
.item-btn.up:hover { color: var(--accent); }
.item-btn.down:hover { color: var(--accent); }
.item-btn.remove:hover { color: var(--danger); }

/* Broadcast controls */
.broadcast-controls {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  flex-wrap: wrap;
}

/* ── Idle Mode ── */
.idle-mode-picker {
  display: flex;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}

.mode-option {
  flex: 1;
  cursor: pointer;
}

.mode-option input[type="radio"] { display: none; }

.mode-card {
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  transition: border-color 0.2s, background 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
}

.mode-card i {
  color: var(--text-faint);
  font-size: 1.2rem;
  transition: color 0.2s;
}

.mode-card span {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.mode-card small {
  font-size: 0.63rem;
  color: var(--text-faint);
}

.mode-option input:checked + .mode-card {
  border-color: var(--accent-dim);
  background: var(--accent-glow);
}

.mode-option input:checked + .mode-card i { color: var(--accent); }
.mode-option input:checked + .mode-card span { color: var(--accent); }

/* Upload Area */
.upload-area {
  border: 1px dashed var(--border-light);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.upload-area:hover, .upload-area.drag-over {
  border-color: var(--accent-dim);
  background: var(--accent-glow);
}

.upload-area i {
  font-size: 1.5rem;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
  display: block;
}

.upload-area p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.upload-area small {
  font-size: 0.63rem;
  color: var(--text-faint);
  display: block;
  margin-top: 0.3rem;
}

.upload-link {
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-style: dotted;
}

.uploaded-preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
}

.preview-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.75rem;
}

.preview-info i { color: var(--accent-dim); }

/* ── Screen Calibration ── */
.screen-calibration-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.range-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.range-row input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  cursor: pointer;
}

.range-num {
  width: 60px !important;
  padding: 0.35rem 0.5rem !important;
  font-size: 0.75rem !important;
  text-align: center;
}

/* Screen Preview */
.screen-preview-wrap {
  margin-top: 1rem;
}

.preview-label {
  font-size: 0.68rem;
  color: var(--text-faint);
  margin-bottom: 0.6rem;
  letter-spacing: 0.05em;
}

.screen-preview {
  position: relative;
  display: inline-block;
  max-width: 280px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.preview-tv-img {
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
  opacity: 0.7;
}

.preview-overlay {
  position: absolute;
  background: rgba(196,151,106,0.4);
  border: 1px solid var(--accent);
  pointer-events: none;
  transition: all 0.15s;
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 0.7rem 1.1rem;
  font-size: 0.75rem;
  color: var(--text);
  letter-spacing: 0.04em;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  z-index: 9999;
  max-width: 280px;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--danger); }
.toast.info    { border-left: 3px solid var(--accent-dim); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 2px; }

/* Responsive admin */
@media (max-width: 768px) {
  :root { --sidebar-w: 180px; }
  .add-video-row { flex-direction: column; }
  .screen-calibration-grid { grid-template-columns: 1fr; }
  .idle-mode-picker { flex-direction: column; }
}

@media (max-width: 560px) {
  .sidebar { display: none; }
  .admin-main { width: 100%; }
}

/* ── 当前空闲画面状态 ── */
.current-idle-file {
  margin-bottom: 1.2rem;
  padding: 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
}

.current-idle-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
  color: var(--success);
  letter-spacing: 0.05em;
  margin-bottom: 0.8rem;
}

.current-idle-label i { font-size: 0.65rem; }

.current-idle-preview {
  margin-bottom: 0.6rem;
  border-radius: var(--radius-sm);
  overflow: hidden;
  max-height: 120px;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.current-idle-preview img,
.current-idle-preview video {
  max-width: 100%;
  max-height: 120px;
  object-fit: contain;
  display: block;
}

.current-idle-name {
  font-size: 0.68rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}