/* ═══════════════════════════════════════════
   dark-theme.css - 天二日报 暗色主题系统
   ═══════════════════════════════════════════ */

/* ── CSS Variables ── */
:root {
  --bg: #ffffff;
  --bg-secondary: #f5f5f5;
  --card: #ffffff;
  --text: #1a1a2e;
  --text-secondary: #666680;
  --text-tertiary: #9999a8;
  --accent: #4A90D9;
  --accent-hover: #5BA4E8;
  --divider: #e8e8ee;
  --success: #4CAF50;
  --warning: #FF9800;
  --error: #F44336;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --page-padding: 16px;
  --card-radius: 12px;
  --card-padding: 12px;
  --font-size-title: 18px;
  --font-size-body: 16px;
  --font-size-small: 14px;
  --font-size-xs: 12px;
  --ripple: rgba(0,0,0,.08);
  /* Legacy compat (保留原 dark 变量名，逐步过渡) */
  --border: #e0e0e0;
  --dim: #666680;
  --purple: #7B68EE;
  --green: #4CAF50;
  --red: #F44336;
  --yellow: #FF9800;
}

[data-theme="dark"] {
  --bg: #121212;
  --bg-secondary: #1a1a2a;
  --card: #2A2A2A;
  --text: #ffffff;
  --text-secondary: #B3B3B3;
  --text-tertiary: #808080;
  --accent: #5BA4E8;
  --accent-hover: #6BB4F8;
  --divider: #3A3A3A;
  --ripple: rgba(255,255,255,.1);
  --border: #3A3A3A;
  --dim: #808080;
  --purple: #a371f7;
  --green: #3fb950;
  --red: #f85149;
  --yellow: #e3b341;
}

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

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-tap-highlight-color: transparent;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--page-padding) calc(80px + var(--safe-bottom));
}

/* ── Cards ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 16px;
  margin-bottom: 12px;
  transition: border-color .2s;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.card:hover { border-color: var(--accent); }
.card:active {
  transform: scale(0.97);
  transition: transform .15s ease;
}
.card a { color: var(--accent); text-decoration: none; }
.card a:hover { text-decoration: underline; }
.card a p, .card a span, .card a .meta-row { color: var(--dim); }
.card-link { color: var(--accent); text-decoration: none; }

/* ── Navigation ── */
nav {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
nav a {
  color: var(--dim);
  text-decoration: none;
  font-size: 13px;
  transition: color .2s;
  white-space: nowrap;
}
nav a:hover, nav a.active { color: var(--accent); }
nav .logo {
  font-weight: 700;
  color: var(--text);
  font-size: 15px;
  margin-right: auto;
  flex-shrink: 0;
}

/* ── Top bar (home page) ── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
}
.topbar .logo {
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  margin-right: auto;
  text-decoration: none;
  white-space: nowrap;
}

/* ── Tabs ── */
.tabs { display: flex; gap: 0; }
.tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--dim);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 0;
  cursor: pointer;
  position: relative;
  text-align: center;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.tab-btn.active { color: var(--accent); }
.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}
.tab-content { display: none; padding-top: 16px; }
.tab-content.active { display: block; }

/* ── Buttons ── */
button, .btn {
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
button:active, .btn:active {
  transform: scale(0.97);
  transition: transform .15s ease;
}

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  margin-right: 6px;
}
.badge-train { background: #2d1a3d; color: var(--purple); }
.badge-eval { background: #1a3a5c; color: var(--accent); }
.badge-new { background: #1a2d2a; color: var(--green); }
.badge-breaking { background: #3d1f1f; color: var(--red); }
.badge-podcast { background: #1a3a5c; color: var(--accent); }
.badge-date {
  background: rgba(88,166,255,.15);
  color: var(--accent);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
}

/* ── Headings ── */
h1 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
h2 {
  font-size: 16px;
  font-weight: 600;
  margin: 24px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
h3 { font-size: 15px; font-weight: 600; margin: 16px 0 8px; }
p { font-size: 13px; color: var(--dim); line-height: 1.6; margin-bottom: 8px; }

/* ── News item ── */
.news-item {
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  margin-bottom: 12px;
}
.news-item .n-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 4px;
}
.news-item .n-meta { font-size: 11px; color: var(--dim); margin-bottom: 4px; }
.news-item .n-desc {
  font-size: 12px;
  color: var(--dim);
  line-height: 1.6;
  margin-bottom: 4px;
}
.news-item .n-learn { font-size: 12px; color: var(--accent); }

/* ── Audio wrappers ── */
.audio-wrapper, .audio-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
  margin: 12px 0;
}
.audio-wrapper audio, .audio-wrap audio {
  width: 100%;
  display: block;
  height: 44px;
  outline: none;
}
.audio-wrapper audio::-webkit-media-controls-panel,
.audio-wrap audio::-webkit-media-controls-panel {
  background: var(--card);
  border-radius: var(--card-radius);
}
.audio-wrapper audio::-webkit-media-controls-current-time-display,
.audio-wrap audio::-webkit-media-controls-current-time-display,
.audio-wrapper audio::-webkit-media-controls-time-remaining-display,
.audio-wrap audio::-webkit-media-controls-time-remaining-display {
  color: var(--dim);
}

/* ── Tags ── */
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.tag {
  background: #21262d;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2px 10px;
  font-size: 11px;
  color: var(--dim);
}
.meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  color: var(--dim);
  margin-bottom: 8px;
}
.date-tag { font-size: 11px; color: var(--dim); }

/* ── States ── */
.empty-state, .empty, .loading {
  text-align: center;
  padding: 32px 16px;
  color: var(--dim);
  font-size: 13px;
}

/* ── Section nav ── */
.section-nav { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.section-nav a {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 12px;
  color: var(--dim);
  text-decoration: none;
  transition: all .2s;
}
.section-nav a:hover, .section-nav a.active {
  border-color: var(--accent);
  color: var(--accent);
}
.section-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
  margin-top: 8px;
}

/* ── Links ── */
.rss-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #1a2d2a;
  color: var(--green) !important;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11px;
  text-decoration: none;
}
.training-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #2d1a3d;
  color: var(--purple) !important;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 12px;
  text-decoration: none;
}
.record-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #3d1f1f;
  color: var(--red) !important;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 12px;
  text-decoration: none;
}
.rec-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--red);
  color: #fff !important;
  padding: 12px 28px;
  border-radius: 24px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}

/* ── Footer ── */
.footer {
  text-align: center;
  font-size: 11px;
  color: #484f58;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.footer a { color: var(--dim); text-decoration: none; }

/* ── About card ── */
.about-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 20px;
  margin-bottom: 12px;
}
.about-card h3 { font-size: 14px; font-weight: 600; margin-bottom: 10px; color: var(--accent); }
.about-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 13px;
  border-bottom: 1px solid rgba(48,54,61,.5);
}
.about-row:last-child { border-bottom: none; }
.about-label { color: var(--dim); }
.about-value { color: var(--text); font-weight: 500; }
.about-links { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.about-links a {
  flex: 1;
  min-width: 100px;
  text-align: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  text-decoration: none;
  color: var(--accent);
  font-size: 13px;
}

/* ── Changelog ── */
.changelog-entry {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(48,54,61,.5);
}
.changelog-entry:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.changelog-header { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.changelog-date { font-size: 11px; color: var(--dim); white-space: nowrap; }
.changelog-ver {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  background: rgba(88,166,255,.15);
  color: var(--accent);
}
.changelog-items { list-style: none; padding: 0; }
.changelog-items li {
  font-size: 12px;
  color: var(--dim);
  line-height: 1.8;
  padding-left: 14px;
  position: relative;
}
.changelog-items li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ── Train week ── */
.train-week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin: 8px 0;
}
.day-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 2px;
  text-align: center;
  font-size: 10px;
}
.day-box.active {
  border-color: var(--accent);
  background: rgba(88,166,255,.1);
}
.day-label { color: var(--dim); font-size: 9px; margin-bottom: 4px; }
.day-type { font-size: 10px; font-weight: 600; }

/* ── Eval card ── */
.eval-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.eval-score { font-size: 24px; font-weight: 700; }

/* ── DL button ── */
.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--dim);
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 12px;
  text-decoration: none;
  white-space: nowrap;
}
.dl-btn:hover { color: var(--accent); border-color: var(--accent); }

/* ── Skeleton loading ── */
@keyframes skeletonPulse {
  0%, 100% { opacity: .5; }
  50% { opacity: 1; }
}
.skeleton {
  background: var(--border);
  border-radius: 6px;
  animation: skeletonPulse 1.5s ease-in-out infinite;
  min-height: 16px;
  margin-bottom: 8px;
}
.skeleton-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 16px;
  margin-bottom: 12px;
}
.skeleton-text {
  background: var(--border);
  border-radius: 4px;
  height: 14px;
  margin-bottom: 8px;
  animation: skeletonPulse 1.5s ease-in-out infinite;
}
.skeleton-text.w50 { width: 50%; }
.skeleton-text.w70 { width: 70%; }
.skeleton-text.w90 { width: 90%; }
.skeleton-text.w100 { width: 100%; }

/* ── Configurable styles ── */
.focus-tag {
  display: inline-block;
  background: #1a3a5c;
  color: var(--accent);
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  margin-bottom: 8px;
}
.focus-tip {
  font-size: 12px;
  color: var(--yellow);
  background: rgba(227,179,65,.1);
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 12px;
  line-height: 1.5;
}

/* ── Ripple animation ── */
@keyframes rippleAnim {
  to { transform: scale(4); opacity: 0; }
}

/* ── Floating Player Trigger ── */
.fp-trigger {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  transition: background .2s, transform .15s ease;
}
.fp-trigger:hover { background: var(--accent-hover); }
.fp-trigger:active { transform: scale(0.97); }

/* ── Toast unify ── */
#_toast, #app-toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  border-radius: 24px;
  font-size: 14px;
  z-index: 99999;
  pointer-events: none;
  transition: opacity .3s;
  opacity: 0;
  white-space: nowrap;
  color: #fff;
}