/* ============================================================
   影立播导播网 - 统一主题（日间 / 夜间）
   - 默认日间（白底浅色）
   - html[data-theme="day"]  优先级高于页面本地 :root，统一接管颜色变量
   - 强调色（青/金/绿/红）日夜一致，仅背景/文字/边框随主题变化
   ============================================================ */

html[data-theme="day"] {
  --bg: #f2f6fb;
  --bg-dark: #f2f6fb;
  --bg-mid: #e9eef6;
  --bg-deep: #e9eef6;
  --bg-deepest: #e2e8f0;
  --bg-card: #ffffff;
  --bg-card-solid: #ffffff;
  --bg-card-soft: #f8fafc;
  --bg-panel: #ffffff;
  --card: #ffffff;

  --text: #0f172a;
  --text2: #1e293b;
  --text3: #475569;
  --text-primary: #0f172a;
  --text-regular: #334155;
  --text-secondary: #64748b;
  --text-muted: #64748b;
  --text-placeholder: #94a3b8;

  --border: #e2e8f0;
  --border-color: #e2e8f0;
  --border-soft: #eef2f7;
  --border-strong: #cbd5e1;
  --border-glow: rgba(6, 182, 212, 0.28);
  --grid-line: #e2e8f0;

  --shadow-card: 0 4px 16px rgba(15, 23, 42, 0.08);
  --shadow-card-hover: 0 8px 28px rgba(15, 23, 42, 0.12);

  /* 彩色按钮/徽章上的字色：日夜均为白 */
  --on-accent: #ffffff;

  --primary: #06b6d4;
  --primary-dark: #0891b2;
  --primary-light: #22d3ee;
  --primary-bg: rgba(6, 182, 212, 0.12);
  --primary-glow: rgba(34, 211, 238, 0.25);
  --primary-xl: rgba(6, 182, 212, 0.2);

  --cyan-400: #22d3ee;
  --cyan-500: #06b6d4;
  --cyan-600: #0891b2;
  --cyan-bg: rgba(6, 182, 212, 0.12);
  --cyan-border: rgba(6, 182, 212, 0.32);
  --cyan-glow: rgba(34, 211, 238, 0.22);
  --glow-cyan: rgba(34, 211, 238, 0.25);

  --success: #10b981;
  --success-light: #34d399;
  --success-xl: rgba(16, 185, 129, 0.18);
  --warning: #f59e0b;
  --warning-light: #fbbf24;
  --warning-xl: rgba(245, 158, 11, 0.18);
  --danger: #f43f5e;
  --danger-light: #fb7185;
  --danger-xl: rgba(244, 63, 94, 0.16);
}

html[data-theme="night"] {
  --bg: #0b1220;
  --bg-dark: #020617;
  --bg-mid: #070f1e;
  --bg-deep: #060c18;
  --bg-deepest: #020617;
  --bg-card: rgba(8, 16, 32, 0.98);
  --bg-card-solid: #060c18;
  --bg-card-soft: rgba(15, 23, 42, 0.97);
  --bg-panel: #0f172a;
  --card: #0f172a;

  --text: #e2e8f0;
  --text2: #f1f5f9;
  --text3: #cbd5e1;
  --text-primary: #ffffff;
  --text-regular: #e2e8f0;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-placeholder: #94a3b8;

  --border: rgba(148, 163, 184, 0.18);
  --border-color: rgba(148, 163, 184, 0.2);
  --border-soft: rgba(148, 163, 184, 0.12);
  --border-strong: rgba(148, 163, 184, 0.32);
  --border-glow: rgba(34, 211, 238, 0.3);
  --grid-line: rgba(148, 163, 184, 0.12);

  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.45);

  --on-accent: #ffffff;

  --primary: #06b6d4;
  --primary-dark: #0891b2;
  --primary-light: #22d3ee;
  --primary-bg: rgba(6, 182, 212, 0.16);
  --primary-glow: rgba(34, 211, 238, 0.3);
  --primary-xl: rgba(6, 182, 212, 0.24);

  --cyan-400: #22d3ee;
  --cyan-500: #06b6d4;
  --cyan-600: #0891b2;
  --cyan-bg: rgba(6, 182, 212, 0.16);
  --cyan-border: rgba(6, 182, 212, 0.36);
  --cyan-glow: rgba(34, 211, 238, 0.26);
  --glow-cyan: rgba(34, 211, 238, 0.3);

  --success: #10b981;
  --success-light: #34d399;
  --success-xl: rgba(16, 185, 129, 0.22);
  --warning: #f59e0b;
  --warning-light: #fbbf24;
  --warning-xl: rgba(245, 158, 11, 0.22);
  --danger: #f43f5e;
  --danger-light: #fb7185;
  --danger-xl: rgba(244, 63, 94, 0.2);
}

/* ---------- 页面级兜底：保证日间一定是白底深字 ---------- */
html[data-theme="day"] body {
  background: #f2f6fb;
  color: #0f172a;
}

/* 视频类页面的媒体区域始终黑底（画面显示需要） */
html[data-theme="day"] video,
html[data-theme="day"] canvas {
  background: #000;
}

/* ---------- 主题切换按钮（theme.js 自动注入） ---------- */
.theme-toggle {
  position: fixed;
  top: max(10px, env(safe-area-inset-top, 10px));
  right: 20px; /* 避开浏览器滚动条 */
  z-index: 2147483000;
  max-width: calc(100vw - 32px);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(6, 182, 212, 0.35);
  background: rgba(255, 255, 255, 0.92);
  color: #0f172a;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.14);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
.theme-toggle:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.2);
}
.theme-toggle:active {
  transform: translateY(0);
}

html[data-theme="night"] .theme-toggle {
  background: rgba(11, 18, 32, 0.88);
  color: #e2e8f0;
  border-color: rgba(34, 211, 238, 0.4);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
}

.theme-toggle .tt-icon {
  font-size: 14px;
  line-height: 1;
}

/* 窄屏/手机：按钮缩小并贴边，避免遮挡页面内容或超出屏幕 */
@media (max-width: 520px) {
  .theme-toggle {
    top: 8px;
    right: 8px;
    padding: 6px 10px;
    font-size: 11px;
    gap: 4px;
    max-width: calc(100vw - 16px);
    overflow: hidden;
    white-space: nowrap;
  }
  .theme-toggle .tt-icon {
    font-size: 12px;
  }
}