:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #0468d7;
  --accent-soft: #e6f0fc;
  --short: #c2410c;
  --shadow: 0 1px 2px rgb(15 23 42 / 6%), 0 4px 16px rgb(15 23 42 / 4%);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120;
    --surface: #131c2e;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: #1f2a40;
    --accent: #54c5f8;
    --accent-soft: #10304a;
    --short: #fb923c;
    --shadow: none;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0b1120;
  --surface: #131c2e;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --border: #1f2a40;
  --accent: #54c5f8;
  --accent-soft: #10304a;
  --short: #fb923c;
  --shadow: none;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Cairo', system-ui, sans-serif;
  line-height: 1.7;
}

h1, h2, h3, p { margin: 0; }
a { color: var(--accent); }

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  margin-bottom: 24px;
}
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand h1 { font-size: 1.5rem; font-weight: 800; }
.brand p { font-size: 0.9rem; }
.logo { width: 40px; height: 40px; fill: var(--accent); flex-shrink: 0; }
.channel-link { font-weight: 600; text-decoration: none; white-space: nowrap; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

/* Weekly summary */
.week { padding: 20px; margin-bottom: 32px; }
.week-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.week-label { text-align: center; }
.week-label h2 { font-size: 1.3rem; }
.nav-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
}
.nav-btn:disabled { opacity: 0.35; cursor: default; }

.stats { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; justify-content: center; }
.stat {
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 0.9rem;
  font-weight: 600;
}

.digest:not(:empty) {
  background: var(--accent-soft);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 20px;
}
.digest-text { font-size: 1.02rem; }
.highlights { margin: 8px 0 0; padding-inline-start: 20px; }
.highlights li { font-weight: 600; }

.week-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.week-list li {
  border-inline-start: 3px solid var(--accent);
  padding: 4px 12px;
}
.week-list a { font-weight: 700; text-decoration: none; color: var(--text); }
.week-list a:hover { color: var(--accent); }
.week-list p { font-size: 0.92rem; color: var(--muted); }
.week-empty { text-align: center; padding: 16px 0; }

/* All videos */
.list-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.list-head h2 { font-size: 1.3rem; }
.search {
  font: inherit;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  width: min(100%, 280px);
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.chip {
  font: inherit;
  font-size: 0.85rem;
  padding: 4px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--surface); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }

.video { overflow: hidden; display: flex; flex-direction: column; }
.thumb { position: relative; display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--border); }
/* Absolute so the 4:3 letterboxed thumbnail can't stretch the box; cover crops the bars. */
.thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.badge {
  position: absolute; top: 8px; inset-inline-start: 8px;
  background: var(--short); color: #fff;
  font-size: 0.75rem; font-weight: 700;
  padding: 0 10px; border-radius: 6px;
}
.video-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.video h3 { font-size: 1rem; line-height: 1.5; }
.video h3 a { color: var(--text); text-decoration: none; }
.video h3 a:hover { color: var(--accent); }
.meta { font-size: 0.82rem; color: var(--muted); }
.summary { font-size: 0.9rem; color: var(--muted); flex: 1; }
.summary .about { color: var(--text); font-weight: 600; }
.points { margin: 6px 0; padding-inline-start: 18px; }
.points li { margin-bottom: 2px; }
.verdict { color: var(--text); }
.source-note { font-size: 0.78rem; margin-top: 4px; }
.terms { margin-top: 8px; background: var(--bg); border-radius: 10px; padding: 6px 12px; }
.terms summary { cursor: pointer; font-weight: 600; color: var(--accent); }
.terms dl { margin: 6px 0 2px; }
.terms dt { font-weight: 700; color: var(--text); text-align: right; }
.terms dd { margin: 0 0 6px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 0.75rem; background: var(--accent-soft); color: var(--accent); border-radius: 6px; padding: 0 8px; }
.watch { font-weight: 700; text-decoration: none; font-size: 0.9rem; }

.empty { text-align: center; padding: 32px 0; }
.footer { text-align: center; font-size: 0.85rem; padding: 32px 16px; }

@media (max-width: 600px) {
  .brand h1 { font-size: 1.25rem; }
  .week { padding: 16px; }
  .grid { grid-template-columns: 1fr; }
  .search { width: 100%; }
}