:root {
  --bg: #11151c;
  --bg-raised: #171d26;
  --bg-sunken: #0d1117;
  --border: #242c38;
  --border-soft: #1c232e;
  --text: #e7ecf3;
  --text-dim: #93a1b5;
  --text-faint: #6b7a8f;
  --accent: #ffb454;
  --accent-soft: rgba(255, 180, 84, 0.16);
  --link: #6cb6ff;
  --ok: #4cc26b;
  --danger: #ff6b6b;
  --radius: 12px;
  --radius-sm: 8px;
  --topbar-h: 58px;
  --playerbar-h: 68px;
  --rail-w: 232px;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f6f7f9;
    --bg-raised: #ffffff;
    --bg-sunken: #eceff4;
    --border: #dde2ea;
    --border-soft: #e7ebf1;
    --text: #1a1f28;
    --text-dim: #5c6675;
    --text-faint: #8791a1;
    --accent: #b8620a;
    --accent-soft: rgba(184, 98, 10, 0.12);
    --link: #0b6bcb;
    --ok: #1a7f37;
    --danger: #c62828;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans HK", "PingFang HK", "Microsoft JhengHei", "Hiragino Sans", system-ui, sans-serif;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

a { color: inherit; }

/* ---------------------------------------------------------------- top bar */

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--topbar-h);
  padding: 0 14px;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 9px; flex: 1 1 auto; min-width: 0; }
.brand-mark { width: 26px; height: 26px; border-radius: 6px; flex: 0 0 auto; }
.brand h1 {
  font-size: 16px; margin: 0; letter-spacing: 0.02em; font-weight: 700;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.brand small { color: var(--text-dim); font-size: 11px; font-weight: 400; margin-left: 8px; }

.topbar-controls { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }

.field { display: flex; align-items: center; gap: 5px; font-size: 12px; color: var(--text-dim); }
.field select {
  font: inherit; font-size: 12px; padding: 4px 6px; max-width: 150px;
  color: var(--text); background: var(--bg-sunken);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}

.icon-button {
  font: inherit; line-height: 1; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 34px; height: 34px; padding: 0 9px;
  color: var(--text); background: var(--bg-sunken);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.icon-button:hover { border-color: var(--accent); }
.icon-button.primary { background: var(--accent); color: #11151c; border-color: var(--accent); font-weight: 700; }
.icon-button:disabled { opacity: 0.4; cursor: default; border-color: var(--border); }

.rail-toggle { display: none; }

/* ------------------------------------------------------------------ banner */

.banner {
  padding: 9px 16px; font-size: 13px;
  background: var(--accent-soft); color: var(--text);
  border-bottom: 1px solid var(--border);
}
.banner.error { background: rgba(255, 107, 107, 0.14); color: var(--danger); }

/* ------------------------------------------------------------------- shell */

.shell {
  display: grid;
  grid-template-columns: var(--rail-w) minmax(0, 1fr);
  align-items: start;
}

/* -------------------------------------------------------------------- rail */

.rail {
  position: sticky;
  top: var(--topbar-h);
  max-height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  padding: 14px 10px calc(var(--playerbar-h) + 20px);
  border-right: 1px solid var(--border);
  background: var(--bg-raised);
}

.views { display: flex; flex-direction: column; gap: 2px; margin-bottom: 18px; }
.view-link {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 10px; border-radius: var(--radius-sm);
  font-size: 14px; text-decoration: none; color: var(--text-dim);
}
.view-link .ico { font-size: 14px; width: 18px; text-align: center; }
.view-link:hover { background: var(--bg-sunken); color: var(--text); }
.view-link[aria-current="page"] { background: var(--accent-soft); color: var(--text); font-weight: 600; }

.rail-section { margin-bottom: 18px; }
.rail-title {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-faint); margin: 0 0 7px; padding: 0 10px; font-weight: 600;
}
.rail-count { color: var(--text-faint); font-weight: 400; letter-spacing: 0; text-transform: none; }

.rail-search {
  font: inherit; font-size: 13px; width: 100%; padding: 6px 10px; margin: 0 0 6px;
  color: var(--text); background: var(--bg-sunken);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}

.rail-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1px; }
.rail-list.channels { max-height: 260px; overflow-y: auto; }
.rail-list a {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 5px 10px; border-radius: var(--radius-sm);
  font-size: 13px; text-decoration: none; color: var(--text-dim);
}
.rail-list a:hover { background: var(--bg-sunken); color: var(--text); }
.rail-list a[aria-current="page"] { background: var(--accent-soft); color: var(--text); font-weight: 600; }
.rail-list .n { font-size: 11px; color: var(--text-faint); font-variant-numeric: tabular-nums; }

.rail-scrim { display: none; }

/* ----------------------------------------------------------------- content */

.content {
  min-width: 0;
  padding: 18px 22px calc(var(--playerbar-h) + 32px);
  max-width: 900px;
}

.crumbs { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.crumbs h2 { font-size: 19px; margin: 0; font-weight: 700; }
.crumbs .clear {
  font-size: 12px; text-decoration: none; color: var(--text-dim);
  border: 1px solid var(--border); border-radius: 999px; padding: 2px 10px;
}
.crumbs .clear:hover { border-color: var(--accent); color: var(--text); }

.status-strip {
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px 14px;
  font-size: 12px; color: var(--text-dim);
  padding-bottom: 12px; margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.status-strip .dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--ok); margin-right: 6px; vertical-align: 1px;
}
.status-strip .dot.bad { background: var(--danger); }
.status-strip .dot.warn { background: var(--accent); }
.status-strip a { color: var(--link); }
.status-strip .checking { color: var(--accent); }

@keyframes spin { to { transform: rotate(360deg); } }
.icon-button.busy { animation: spin 0.9s linear infinite; }

/* the feed-health read-out: a button once there is something to explain */

.health { position: relative; }

.health-toggle {
  font: inherit; font-size: 12px; line-height: 1.4; cursor: pointer;
  display: inline-flex; align-items: center; gap: 2px;
  padding: 2px 8px; border-radius: 999px;
  color: var(--text-dim); background: transparent;
  border: 1px solid var(--border);
}
.health-toggle:hover { color: var(--text); border-color: var(--accent); }
.health-toggle .caret { font-size: 9px; margin-left: 4px; }

.health-panel {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 25;
  width: min(360px, calc(100vw - 32px));
  padding: 12px 14px; border-radius: var(--radius);
  background: var(--bg-raised); border: 1px solid var(--border);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.32);
  line-height: 1.6;
}
.health-panel[hidden] { display: none; }

.health-item { padding-bottom: 10px; margin-bottom: 10px; border-bottom: 1px solid var(--border-soft); }
.health-item:last-of-type { border-bottom: 0; margin-bottom: 4px; }
.health-item-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }
.health-name { font-size: 13px; font-weight: 700; color: var(--text); }
.health-hint { font-size: 12px; color: var(--text-dim); margin: 0 0 4px; }
.health-error {
  font-size: 12px; color: var(--danger); margin: 0 0 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; overflow-wrap: anywhere;
}
.health-facts { font-size: 11px; color: var(--text-faint); margin: 0; }
.health-more { font-size: 12px; color: var(--link); text-decoration: none; }
.health-more:hover { text-decoration: underline; }

.placeholder { color: var(--text-dim); padding: 28px 0; }

/* ------------------------------------------------------------------ digest */

.digest {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 20px;
  overflow: hidden;
}

.digest-head {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 11px 16px;
  background: var(--bg-sunken);
  border-bottom: 1px solid var(--border);
}
.digest-when { font-size: 14px; font-weight: 700; }
.digest-ago { font-size: 12px; color: var(--text-dim); }
.digest-stats { margin-left: auto; font-size: 12px; color: var(--text-faint); font-variant-numeric: tabular-nums; }

.highlights { padding: 4px 16px 14px; border-bottom: 1px solid var(--border-soft); }
.highlights h3 { font-size: 15px; margin: 16px 0 4px; font-weight: 700; }
.highlights h3:first-child { margin-top: 10px; }
.highlights p { margin: 0 0 10px; }
.highlights ul { margin: 0 0 10px; padding-left: 20px; }

.topic-group { border-top: 1px solid var(--border-soft); }
.topic-group:first-of-type { border-top: 0; }

.topic-head {
  display: flex; align-items: center; gap: 9px;
  padding: 12px 16px 4px;
}
.topic-head h3 {
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--accent); margin: 0; font-weight: 700;
}
.topic-head .n { font-size: 11px; color: var(--text-faint); }

.channel-block { padding: 8px 16px 14px; }
.channel-head { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.channel-name { font-size: 14px; font-weight: 600; }
.channel-name a { text-decoration: none; }
.channel-name a:hover { color: var(--accent); }

.summary { margin: 0 0 8px; }

.ref-link {
  font-size: 11px; font-weight: 700; text-decoration: none;
  color: var(--accent); vertical-align: 1px; padding: 0 1px;
}
.ref-link:hover { text-decoration: underline; }

.refs { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--border-soft); }
.refs li { display: flex; gap: 9px; padding: 7px 0; border-bottom: 1px solid var(--border-soft); font-size: 13px; }
.refs li:last-child { border-bottom: 0; }
.refs .num { color: var(--text-faint); min-width: 2.6ch; font-variant-numeric: tabular-nums; font-size: 12px; }
.refs .title a { text-decoration: none; }
.refs .title a:hover { text-decoration: underline; color: var(--accent); }
.refs .meta { color: var(--text-faint); font-size: 11px; }
.refs .meta a { color: var(--link); text-decoration: none; }

details.refs-box > summary {
  cursor: pointer; font-size: 12px; color: var(--text-dim);
  padding: 2px 0; list-style: none;
}
details.refs-box > summary::-webkit-details-marker { display: none; }
details.refs-box > summary::before { content: "▸ "; }
details.refs-box[open] > summary::before { content: "▾ "; }
details.refs-box > summary:hover { color: var(--accent); }

/* ------------------------------------------------------------ rail controls */

.rail-check {
  display: flex; align-items: center; gap: 7px;
  padding: 4px 10px; font-size: 13px; color: var(--text-dim); cursor: pointer;
}
.rail-check:hover { color: var(--text); }

.rail-button {
  font: inherit; font-size: 12px; cursor: pointer; width: calc(100% - 20px);
  margin: 6px 10px 0; padding: 5px 10px; border-radius: var(--radius-sm);
  color: var(--text-dim); background: var(--bg-sunken);
  border: 1px solid var(--border);
}
.rail-button:hover { color: var(--danger); border-color: var(--danger); }

.rail-note { font-size: 11px; color: var(--text-faint); margin: 8px 10px 0; line-height: 1.5; }
.rail-note[hidden] { display: none; }

/* --------------------------------------------------------------- speak btn */

.speak {
  font: inherit; font-size: 11px; line-height: 1; cursor: pointer;
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 9px; border-radius: 999px;
  color: var(--text-dim); background: transparent;
  border: 1px solid var(--border); white-space: nowrap;
}
.speak:hover { color: var(--accent); border-color: var(--accent); }
.speak[aria-pressed="true"] { color: #11151c; background: var(--accent); border-color: var(--accent); font-weight: 700; }

/* The read marker, pinned to the block's corner. Always present: a hollow ring
   when untouched, so there is one place to look and one place to click. */

.channel-block, .highlights, .task, .topic-group { position: relative; }
.channel-block, .task { padding-right: 46px; }
.highlights { padding-right: 46px; }

.listen-mark {
  position: absolute; top: 10px; right: 12px; z-index: 3;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 22px; height: 22px; padding: 0 6px;
  font: inherit; font-size: 12px; font-weight: 700; line-height: 1;
  border-radius: 999px; cursor: pointer;
  background: transparent; color: var(--text-faint);
  /* --border is too faint to read as a control on its own card, so the empty
     ring gets a token with real contrast against both themes. */
  border: 1.5px solid color-mix(in srgb, var(--text-faint) 55%, transparent);
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}
.listen-mark[data-state="new"]:hover { border-color: var(--ok); color: var(--ok); }
.listen-mark[data-state="new"]:hover::after { content: "✓"; }

.listen-mark[data-state="partial"] {
  font-size: 10px; border-color: var(--accent); color: var(--accent);
}
.listen-mark[data-state="listened"] {
  background: var(--ok); border-color: var(--ok); color: #fff;
}
.listen-mark[data-state="listened"]:hover { opacity: 0.75; }

/* The topic group's mark sits level with its header, not the first channel. */
.topic-group > .listen-mark { top: 12px; }

/* A heard block steps back without disappearing: still readable, clearly done. */
.channel-block.is-listened .channel-name,
.task.is-listened .task-name { opacity: 0.5; }
.channel-block.is-listened .summary,
.highlights.is-listened p,
.highlights.is-listened h3,
.task.is-listened .task-body { opacity: 0.6; }
.channel-block[hidden], .topic-group[hidden], .digest[hidden] { display: none; }

/* ------------------------------------------------------------------ daily */

.day-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; margin-bottom: 22px; }
.day-card {
  display: block; text-align: left; cursor: pointer;
  padding: 11px 13px; border-radius: var(--radius-sm);
  background: var(--bg-raised); border: 1px solid var(--border);
  font: inherit; color: var(--text);
}
.day-card:hover { border-color: var(--accent); }
.day-card[aria-current="true"] { border-color: var(--accent); background: var(--accent-soft); }
.day-line { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.day-card .d { font-size: 13px; font-weight: 700; }
.day-card .tick { font-size: 12px; color: var(--ok); }
.day-card[data-state="listened"] .d, .day-card[data-state="listened"] .h { opacity: 0.6; }
.day-card[data-state="partial"] .tick { color: var(--text-dim); }
.day-card .h { font-size: 12px; color: var(--text-dim); margin-top: 2px;
               display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.day-card .t { font-size: 11px; color: var(--text-faint); margin-top: 4px; }

.reader-body { background: var(--bg-raised); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.reader-body h1, .reader-body h2, .reader-body h3 { line-height: 1.4; }
.reader-body h1 { font-size: 19px; margin: 0 0 12px; }
.reader-body h2 { font-size: 16px; margin: 20px 0 6px; }
.reader-body h3 { font-size: 14px; margin: 16px 0 4px; color: var(--accent); }
.reader-body p, .reader-body li { margin: 0 0 8px; }
.reader-body ul { padding-left: 20px; }

.seg { cursor: pointer; border-radius: 3px; padding: 0 2px; }
.seg:hover { background: var(--accent-soft); }
.seg.active { background: var(--accent); color: #11151c; }

.autoplay { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--text-dim); margin: 14px 0 0; }

/* ------------------------------------------------------------------ tasks */

.task {
  background: var(--bg-raised); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px; margin-bottom: 16px;
}
.task-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.task-name { font-size: 15px; font-weight: 700; }
.task-when { font-size: 12px; color: var(--text-dim); }
.task-sched {
  font-size: 11px; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--bg-sunken); border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px;
}
.task-body h1 { font-size: 17px; margin: 10px 0 8px; }
.task-body h2 { font-size: 15px; margin: 16px 0 6px; }
.task-body h3 { font-size: 13px; margin: 12px 0 4px; color: var(--accent); }
.task-body p, .task-body li { margin: 0 0 8px; }
.task-body ul, .task-body ol { padding-left: 20px; }
.task-body a { color: var(--link); }
.task-error { color: var(--danger); font-size: 13px; margin: 8px 0 0; }

.badge { font-size: 11px; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--border); color: var(--text-dim); }
.badge.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, var(--border)); }
.badge.bad { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 45%, var(--border)); }

/* ---------------------------------------------------------------- sources */

.source-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.source-table th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text-faint); font-weight: 600; padding: 6px 10px; border-bottom: 1px solid var(--border);
}
.source-table td { padding: 7px 10px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.source-table tr:hover td { background: var(--bg-raised); }
.source-table .err { color: var(--danger); font-size: 12px; }

/* ------------------------------------------------------------------ pager */

.pager { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 8px; }
.page-button {
  font: inherit; font-size: 13px; cursor: pointer; padding: 6px 14px;
  color: var(--text); background: var(--bg-raised);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.page-button:hover:not(:disabled) { border-color: var(--accent); }
.page-button:disabled { opacity: 0.35; cursor: default; }
.page-label { font-size: 12px; color: var(--text-dim); font-variant-numeric: tabular-nums; }

/* -------------------------------------------------------------- player bar */

.playerbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  display: flex; align-items: center; gap: 14px;
  height: var(--playerbar-h);
  padding: 0 16px calc(env(safe-area-inset-bottom, 0px) / 2);
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
}

.now-playing { flex: 0 1 240px; min-width: 0; }
.now-title { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.now-sub { font-size: 11px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.transport { display: flex; align-items: center; gap: 7px; flex: 0 0 auto; }

.progress-wrap { flex: 1 1 auto; min-width: 0; }
.progress { height: 6px; border-radius: 3px; background: var(--bg-sunken); cursor: pointer; overflow: hidden; }
.progress span { display: block; height: 100%; width: 0; background: var(--accent); }
.progress-label { font-size: 11px; color: var(--text-dim); margin-top: 3px; font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------------ mobile */

@media (max-width: 860px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .rail-toggle { display: inline-flex; }
  .rail {
    position: fixed; top: var(--topbar-h); bottom: 0; left: 0; z-index: 35;
    width: 270px; max-height: none;
    transform: translateX(-100%); transition: transform 0.18s ease;
  }
  .rail.open { transform: translateX(0); }
  .rail-scrim {
    display: block; position: fixed; inset: var(--topbar-h) 0 0; z-index: 30;
    background: rgba(0, 0, 0, 0.45);
  }
  .rail-scrim[hidden] { display: none; }
  .content { padding: 14px 14px calc(var(--playerbar-h) + 28px); }
  .brand small { display: none; }
  .now-playing { display: none; }
  .field span { display: none; }
}

@media (max-width: 520px) {
  .digest-stats { width: 100%; margin-left: 0; }
  .progress-label { display: none; }
}