/* PsychTube — a dark study with a lamp on. One family (Bricolage Grotesque), three accents:
   amber for trust/vouches, violet for topics, coral for "handle with care", blue for institutions. */

/* Layout: fixed top bar, left rail, image-led grid; watch page = player column + related column. */
:root {
  --bg: #14121d;
  --bg-2: #1c1928;
  --bg-3: #252136;
  --bg-4: #2f2a45;
  --ink: #eeeaf6;
  --ink-2: #b5aecb;
  --ink-3: #8f88aa;
  --line: rgba(238, 234, 246, 0.09);
  --amber: #e8b04b;
  --amber-2: #f3cc7a;
  --amber-ink: #2a1f05;
  --amber-text: #f3cc7a;
  --violet: #a091e0;
  --violet-soft: rgba(160, 145, 224, 0.16);
  --coral: #f07a5e;
  --coral-soft: rgba(240, 122, 94, 0.16);
  --tag-care: #b84a32;
  --mint: #7bd1be;
  --mint-ink: #0a2a24;
  --inst: #86b6e8;
  --inst-soft: rgba(134, 182, 232, 0.16);
  --focus: #f3cc7a;
  --pill-bg: rgba(0, 0, 0, 0.78);
  --shadow: 0 18px 40px -22px rgba(0, 0, 0, 0.7);
  --radius: 10px;
  --rail: 208px;
  --font: "Bricolage Grotesque", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f4f3f8; --bg-2: #ffffff; --bg-3: #ecebf3; --bg-4: #e0ddeb;
    --ink: #1a1726; --ink-2: #4a4560; --ink-3: #66607e; --line: rgba(26, 23, 38, 0.11);
    --amber: #8f6508; --amber-2: #b07e12; --amber-ink: #fff6dc; --amber-text: #6f4c03;
    --violet: #5b49ae; --violet-soft: rgba(91, 73, 174, 0.12);
    --coral: #a33d28; --coral-soft: rgba(163, 61, 40, 0.12); --tag-care: #a33d28;
    --mint: #13624f; --mint-ink: #ffffff; --focus: #5b49ae;
    --inst: #28598f; --inst-soft: rgba(40, 89, 143, 0.12);
    --shadow: 0 18px 40px -24px rgba(26, 23, 38, 0.35);
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #f4f3f8; --bg-2: #ffffff; --bg-3: #ecebf3; --bg-4: #e0ddeb;
  --ink: #1a1726; --ink-2: #4a4560; --ink-3: #66607e; --line: rgba(26, 23, 38, 0.11);
  --amber: #8f6508; --amber-2: #b07e12; --amber-ink: #fff6dc; --amber-text: #6f4c03;
  --violet: #5b49ae; --violet-soft: rgba(91, 73, 174, 0.12);
  --coral: #a33d28; --coral-soft: rgba(163, 61, 40, 0.12); --tag-care: #a33d28;
  --mint: #13624f; --mint-ink: #ffffff; --focus: #5b49ae;
  --inst: #28598f; --inst-soft: rgba(40, 89, 143, 0.12);
  --shadow: 0 18px 40px -24px rgba(26, 23, 38, 0.35);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { height: 100%; }
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.45;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  display: grid;
  grid-template-columns: var(--rail) 1fr;
  grid-template-rows: 60px 1fr;
  grid-template-areas: "top top" "rail main";
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--ink); }
button { font: inherit; color: inherit; }
img { display: block; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 6px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--amber); color: var(--amber-ink); padding: 6px 10px; border-radius: 6px; z-index: 50; }
.skip:focus { left: 8px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* ---------- top bar ---------- */
.top {
  grid-area: top;
  position: sticky; top: 0; z-index: 20;
  display: grid; grid-template-columns: var(--rail) 1fr auto; align-items: center; gap: 12px;
  padding: 0 20px 0 16px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; letter-spacing: -0.01em; }
.blot { width: 28px; height: 28px; fill: var(--amber); }
.wordmark { font-variation-settings: "opsz" 40; }
.search { position: relative; max-width: 560px; width: 100%; justify-self: start; }
.search input {
  width: 100%; height: 40px; padding: 0 44px 0 16px; border-radius: 20px;
  border: 1px solid var(--line); background: var(--bg-3); color: var(--ink); font: inherit; font-size: 15px;
}
.search input:focus { outline: 2px solid var(--focus); outline-offset: 0; border-color: transparent; }
.search input::placeholder { color: var(--ink-3); }
.search kbd {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  font: 600 12px/1 var(--font); color: var(--ink-3); border: 1px solid var(--line); border-radius: 5px; padding: 4px 6px;
}
.top-actions { display: flex; gap: 6px; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 50%; border: 1px solid transparent; background: transparent; cursor: pointer;
  font-size: 17px; color: var(--ink-2);
}
.icon-btn:hover { background: var(--bg-3); color: var(--ink); }

/* ---------- rail ---------- */
.rail {
  grid-area: rail;
  position: sticky; top: 60px; align-self: start; height: calc(100vh - 60px); overflow: auto;
  padding: 12px 10px; display: flex; flex-direction: column; gap: 2px;
}
.rail a {
  display: flex; align-items: center; gap: 12px; padding: 9px 12px; border-radius: 8px;
  color: var(--ink-2); font-weight: 500; font-size: 14.5px;
}
.rail a:hover { background: var(--bg-3); color: var(--ink); }
.rail a[aria-current="page"] { background: var(--bg-3); color: var(--ink); font-weight: 650; }
.rail .ic { width: 20px; text-align: center; font-size: 15px; color: var(--ink-3); }
.rail a[aria-current="page"] .ic { color: var(--amber); }
.rail-gap { height: 10px; border-bottom: 1px solid var(--line); margin: 4px 8px 10px; }

/* ---------- main ---------- */
.main { grid-area: main; padding-block: 22px 80px; padding-left: max(28px, env(safe-area-inset-left, 0px)); padding-right: max(28px, env(safe-area-inset-right, 0px)); min-width: 0; max-width: 1480px; }
.main:focus { outline: none; }
h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -0.015em; line-height: 1.15; }
h1 { font-size: 30px; font-variation-settings: "opsz" 60; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }
p { margin: 0 0 10px; }
.muted { color: var(--ink-2); }
.faint { color: var(--ink-3); }
.lede { font-size: 17px; color: var(--ink-2); max-width: 66ch; }
.lede b { color: var(--ink); font-weight: 650; }

.masthead { margin: 6px 0 26px; max-width: 900px; }
.masthead h1 { font-size: clamp(26px, 3.4vw, 40px); max-width: 24ch; margin-bottom: 10px; }
.masthead .sources { display: flex; flex-wrap: wrap; gap: 6px 10px; margin-top: 10px; font-size: 13.5px; color: var(--ink-3); }

.section { margin: 26px 0 8px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 12px; }
.section-head .sub { color: var(--ink-3); font-size: 13.5px; margin-top: 2px; }
.section-head a.more { color: var(--amber); font-weight: 600; font-size: 14px; white-space: nowrap; }
.section-head a.more:hover { color: var(--amber-2); }

/* ---------- grids / rows ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(236px, 1fr)); gap: 22px 18px; }
.row { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(236px, 1fr); gap: 18px; overflow-x: auto; padding-bottom: 6px; scroll-snap-type: x proximity; scrollbar-width: thin; }
.row > * { scroll-snap-align: start; }
@media (min-width: 1500px) { .row { grid-auto-columns: calc((100% - 5 * 18px) / 6); } }
@media (min-width: 1100px) and (max-width: 1499px) { .row { grid-auto-columns: calc((100% - 4 * 18px) / 5); } }
@media (min-width: 800px) and (max-width: 1099px) { .row { grid-auto-columns: calc((100% - 3 * 18px) / 4); } }

/* ---------- card ---------- */
.card { display: block; color: inherit; border-radius: var(--radius); outline-offset: 4px; }
.card .thumb { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; background: var(--bg-3); }
.card .thumb img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; transition: transform 0.25s ease; }
.card:hover .thumb img, .card:focus-visible .thumb img { transform: scale(1.03); }
.card .thumb .ph { position: absolute; inset: 0; display: grid; place-items: center; font-size: 42px; font-weight: 800; color: var(--ink-3); background: linear-gradient(135deg, var(--bg-3), var(--bg-4)); }
.pill {
  position: absolute; z-index: 2; right: 8px; bottom: 8px; padding: 2px 7px; border-radius: 5px;
  font-size: 12px; font-weight: 650; background: var(--pill-bg); color: #fff; letter-spacing: 0.01em;
}
.tag {
  position: absolute; z-index: 2; left: 8px; top: 8px; padding: 3px 8px; border-radius: 5px;
  font-size: 11.5px; font-weight: 700; background: var(--tag-care); color: #fff;
}
.tag.series { background: var(--pill-bg); }
.tag.critique { background: var(--mint); color: var(--mint-ink); }
.tag.s-smaller, .tag.s-mixed { background: var(--bg-4); color: var(--ink); }
.tag.s-overstated, .tag.s-misreported, .tag.s-reversed { background: var(--amber); color: var(--amber-ink); }
.card .title { margin: 10px 0 3px; font-size: 15px; font-weight: 600; line-height: 1.3; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card .ch { color: var(--ink-2); font-size: 13.5px; }
.vouch { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; margin-top: 5px; font-size: 12.5px; color: var(--ink-3); }
.vouch .n { color: var(--amber); font-weight: 700; }
.chip { display: inline-block; padding: 1px 7px; border-radius: 999px; background: var(--bg-3); color: var(--ink-2); font-size: 11.5px; font-weight: 550; white-space: nowrap; }
.chip.hn { background: color-mix(in srgb, var(--amber) 18%, transparent); color: var(--amber-text); }
.chip.se { background: var(--violet-soft); color: var(--violet); }
.chip.reddit { background: color-mix(in srgb, var(--mint) 16%, transparent); color: var(--mint); }
.chip.inst { background: var(--inst-soft); color: var(--inst); font-weight: 650; }
a.chip.inst:hover { text-decoration: underline; }
.vouch .pub { color: var(--inst); font-weight: 650; }
/* course lectures without a thumbnail (hosted copy): a numbered tile in the course's own hue */
.ph.lec { display: grid; place-items: center; align-content: center; gap: 2px; background: linear-gradient(160deg, hsl(var(--h) 38% 30%), hsl(calc(var(--h) + 24) 42% 18%)); color: hsl(var(--h) 70% 92%); font-size: 13px; font-weight: 600; }
.ph.lec b { font-size: 34px; font-weight: 800; line-height: 1; letter-spacing: -0.02em; }
.ph.lec span { opacity: 0.8; font-size: 12px; letter-spacing: 0.02em; }
.card.small .ph.lec b { font-size: 22px; }
.lectures .thumb .ph.lec { position: absolute; inset: 0; }
.lectures .thumb .ph.lec b { font-size: 26px; }
.box.inst { border-color: color-mix(in srgb, var(--inst) 45%, transparent); background: var(--inst-soft); }
.box.inst h2 { color: var(--inst); }
.box.inst a { color: inherit; text-decoration: underline; }
.course-head .eyebrow { display: flex; align-items: center; gap: 8px; color: var(--ink-3); font-size: 13.5px; margin-bottom: 6px; }
.course-head .lede { max-width: 80ch; }
.card.small { display: grid; grid-template-columns: 168px 1fr; gap: 10px; align-items: start; }
.card.small .thumb { aspect-ratio: 16 / 9; }
.card.small .title { margin: 0 0 2px; font-size: 14px; }
.card.small .ch, .card.small .vouch { font-size: 12.5px; }
.card.small .vouch { margin-top: 3px; }
.card.row-item { display: grid; grid-template-columns: 240px 1fr; gap: 16px; align-items: start; padding: 10px 0; border-bottom: 1px solid var(--line); border-radius: 0; }
.card.row-item .title { margin-top: 0; font-size: 16px; -webkit-line-clamp: 2; }
.card.row-item .thumb { max-width: 240px; }
.card.row-item .desc { color: var(--ink-2); font-size: 13.5px; margin-top: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.num { color: var(--ink-3); font-weight: 650; font-variant-numeric: tabular-nums; }

/* ---------- toolbar / filters ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 14px 0 18px; }
.seg { display: inline-flex; flex-wrap: wrap; border: 1px solid var(--line); border-radius: 999px; padding: 2px; background: var(--bg-2); }
.seg > button, .seg > a { border: 0; background: transparent; padding: 5px 12px; border-radius: 999px; cursor: pointer; font-size: 13.5px; color: var(--ink-2); font-weight: 550; white-space: nowrap; }
.seg > button:hover, .seg > a:hover { color: var(--ink); }
.seg > [aria-pressed="true"], .seg > [aria-current="true"] { background: var(--bg-4); color: var(--ink); }
.btn {
  border: 1px solid var(--line); background: var(--bg-3); color: var(--ink); border-radius: 999px; padding: 8px 14px; cursor: pointer;
  font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 7px;
}
.btn:hover { background: var(--bg-4); }
.btn.primary { background: var(--amber); color: var(--amber-ink); border-color: transparent; }
.btn.primary:hover { background: var(--amber-2); }
.btn[aria-pressed="true"] { background: var(--amber); color: var(--amber-ink); border-color: transparent; }
.btn.quiet { background: transparent; }
.empty { padding: 40px 0; color: var(--ink-2); max-width: 56ch; }
.empty h2 { margin-bottom: 6px; }

/* ---------- topics page ---------- */
.areas { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px 28px; }
.area h2 { font-size: 18px; margin-bottom: 8px; }
.area ul { list-style: none; margin: 0; padding: 0; }
.area li a { display: flex; justify-content: space-between; gap: 10px; padding: 7px 8px; border-radius: 6px; color: var(--ink-2); }
.area li a:hover { background: var(--bg-3); color: var(--ink); }
.area li .n { color: var(--ink-3); font-variant-numeric: tabular-nums; }
.topic-pills { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 4px; }
.tpill { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; background: var(--violet-soft); color: var(--violet); font-weight: 600; font-size: 13.5px; }
.tpill:hover { filter: brightness(1.15); color: var(--violet); }
.tpill.active { background: var(--violet); color: #fff; }

/* ---------- watch ---------- */
.watch { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 28px; align-items: start; }
.player { aspect-ratio: 16 / 9; border-radius: 12px; overflow: hidden; background: #000; box-shadow: var(--shadow); }
.player iframe { width: 100%; height: 100%; border: 0; display: block; }
.watch h1 { font-size: 24px; margin: 16px 0 6px; }
.meta { color: var(--ink-2); font-size: 14px; display: flex; flex-wrap: wrap; gap: 4px 14px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 20px; }
.box { background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin: 14px 0; }
.box h2 { font-size: 16px; margin-bottom: 8px; }
.box.care { border-color: color-mix(in srgb, var(--coral) 45%, transparent); background: var(--coral-soft); }
.box.care h2 { color: var(--coral); }
.box.critique { border-color: color-mix(in srgb, var(--mint) 45%, transparent); background: color-mix(in srgb, var(--mint) 10%, transparent); }
.box.critique h2 { color: var(--mint); }
.why { font-size: 15.5px; line-height: 1.5; }
.quote { font-style: italic; color: var(--ink-2); }
.vlist { list-style: none; margin: 0; padding: 0; }
.vlist li { padding: 10px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 112px 1fr; gap: 12px; font-size: 14px; }
.vlist li:first-child { border-top: 0; }
.vlist .who { color: var(--ink-3); font-size: 12.5px; line-height: 1.35; min-width: 0; overflow-wrap: anywhere; }
.vlist .who b { display: block; color: var(--ink-2); font-weight: 650; font-size: 13px; }
.vlist .what a { color: var(--ink-3); }
.vlist .what a:hover { color: var(--amber); }
.vlist .q { color: var(--ink); }
.vlist .thread { color: var(--ink-3); font-size: 12.5px; margin-top: 2px; }
.stance { font-size: 11.5px; font-weight: 700; padding: 1px 6px; border-radius: 4px; display: inline-block; margin-top: 4px; }
.stance.strong_rec { background: color-mix(in srgb, var(--amber) 22%, transparent); color: var(--amber-text); }
.stance.rec { background: color-mix(in srgb, var(--amber) 14%, transparent); color: var(--amber-text); }
.stance.critical { background: var(--coral-soft); color: var(--coral); }
.stance.reference, .stance.comment, .stance.post, .stance.question, .stance.answer { background: var(--bg-3); color: var(--ink-2); }
.clips { display: flex; flex-wrap: wrap; gap: 8px; }
.clips button { border: 1px solid var(--line); background: var(--bg-3); border-radius: 8px; padding: 6px 10px; cursor: pointer; font-size: 13px; text-align: left; max-width: 100%; }
.clips button b { color: var(--amber); font-variant-numeric: tabular-nums; }
.side h2 { font-size: 15px; color: var(--ink-2); margin-bottom: 10px; }
.side .card.small { margin-bottom: 14px; }

/* ---------- series ---------- */
.lectures { list-style: none; margin: 0; padding: 0; }
.lectures li { display: grid; grid-template-columns: 36px 200px 1fr; gap: 14px; align-items: start; padding: 10px 0; border-bottom: 1px solid var(--line); }
.lectures .thumb { aspect-ratio: 16 / 9; border-radius: 8px; overflow: hidden; background: var(--bg-3); position: relative; }
.lectures .thumb img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; }
.lectures .lt { font-weight: 600; }
.lectures .watched { color: var(--mint); font-size: 12.5px; }

/* ---------- misc pages ---------- */
.prose { max-width: 70ch; font-size: 16px; line-height: 1.55; }
.prose h2 { margin: 26px 0 8px; font-size: 20px; }
.prose ul { padding-left: 20px; }
.prose code, .prose pre { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.prose pre { background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: 14px; overflow: auto; white-space: pre-wrap; }
.stats { display: flex; flex-wrap: wrap; gap: 10px 28px; margin: 14px 0 20px; }
.stats div b { display: block; font-size: 28px; font-weight: 750; letter-spacing: -0.02em; }
.stats div span { color: var(--ink-3); font-size: 13.5px; }
.setting { display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--line); max-width: 720px; }
.setting p { margin: 2px 0 0; color: var(--ink-3); font-size: 13.5px; }
.care-list .card .thumb .tag { font-size: 11px; }

/* ---------- toast / help ---------- */
.toast { position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%) translateY(20px); opacity: 0; background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 999px; font-weight: 600; font-size: 14px; transition: opacity 0.2s, transform 0.2s; pointer-events: none; z-index: 40; }
.toast.on { opacity: 1; transform: translateX(-50%) translateY(0); }
.help { border: 1px solid var(--line); background: var(--bg-2); color: var(--ink); border-radius: 14px; padding: 22px 26px; max-width: 420px; width: calc(100% - 32px); }
.help::backdrop { background: rgba(0, 0, 0, 0.5); }
.help h2 { margin-bottom: 12px; }
.help table { border-collapse: collapse; margin-bottom: 16px; width: 100%; }
.help td { padding: 6px 0; font-size: 14px; color: var(--ink-2); }
.help td:first-child { width: 110px; }
kbd.k, .help kbd { font: 600 12px/1 var(--font); border: 1px solid var(--line); border-radius: 5px; padding: 3px 6px; background: var(--bg-3); color: var(--ink); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .watch { grid-template-columns: 1fr; }
  .side { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 0 20px; }
}
@media (max-width: 900px) {
  :root { --rail: 72px; }
  .rail a { flex-direction: column; gap: 4px; font-size: 11px; padding: 10px 4px; text-align: center; }
  .rail .ic { font-size: 18px; }
  .brand .wordmark { display: none; }
  .top { grid-template-columns: var(--rail) 1fr auto; padding-right: 12px; }
  .main { padding-block: 16px 90px; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
}
@media (max-width: 640px) {
  body { grid-template-columns: 1fr; grid-template-areas: "top" "main"; }
  .top { grid-template-columns: auto 1fr auto; gap: 8px; padding: 0 12px; }
  .rail { position: fixed; top: auto; bottom: 0; left: 0; right: 0; height: auto; flex-direction: row; overflow-x: auto; padding: 6px 6px; padding-bottom: calc(6px + env(safe-area-inset-bottom, 0px)); background: var(--bg-2); border-top: 1px solid var(--line); z-index: 20; scroll-snap-type: x proximity; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .rail::-webkit-scrollbar { display: none; }
  .rail a { min-width: 68px; scroll-snap-align: start; }
  .rail::after { content: ""; position: sticky; right: 0; flex: 0 0 24px; margin-left: -24px; background: linear-gradient(to right, transparent, var(--bg-2)); pointer-events: none; }   /* the bar scrolls: 16 destinations, about six on screen */
  .rail-gap { display: none; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px 12px; }
  .row { grid-auto-columns: 70%; }
  .card.row-item { grid-template-columns: 140px 1fr; }
  .vlist li { grid-template-columns: 1fr; gap: 4px; }
  .lectures li { grid-template-columns: 28px 120px 1fr; }
  .masthead h1 { font-size: 24px; }
}

/* ---------- hosted copy: poster instead of player ---------- */
.player.poster { position: relative; display: block; }
.player.poster img { width: 100%; height: 100%; object-fit: cover; opacity: 0.9; max-width: 100%; }
.player.poster .play { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: inline-flex; align-items: center; gap: 10px; padding: 12px 20px; border-radius: 999px; background: var(--amber); color: var(--amber-ink); font-weight: 700; font-size: 15px; box-shadow: var(--shadow); white-space: nowrap; }
.player.poster:hover .play { background: var(--amber-2); }
.player.poster .play-ic { font-size: 13px; }

/* ---------- lecture tracker ---------- */
.thumb .prog { position: absolute; z-index: 3; left: 0; bottom: 0; height: 4px; background: var(--amber); border-radius: 0 2px 2px 0; box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.25); pointer-events: none; }
.thumb.is-done img { opacity: 0.72; }
.done-badge { position: absolute; z-index: 3; right: 8px; top: 8px; width: 22px; height: 22px; border-radius: 999px; display: grid; place-items: center; background: var(--mint); color: var(--mint-ink); font-size: 13px; font-weight: 800; }
.card .thumb .done-badge + .pill { right: 8px; }
.course-progress { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 4px 0 12px; font-size: 13.5px; color: var(--ink-2); }
.course-progress .bar { flex: 0 1 320px; min-width: 160px; height: 8px; border-radius: 999px; background: var(--bg-4); overflow: hidden; }
.course-progress .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--amber), var(--amber-2)); border-radius: 999px; transition: width 0.3s ease; }
.lectures li.done .lt { color: var(--ink-2); }
.lectures li.done .num { color: var(--mint); }
.lectures .track { display: flex; align-items: center; gap: 10px; margin-top: 6px; font-size: 12.5px; }
.lectures .track a { text-decoration: underline; }
button.mini { border: 1px solid var(--line); background: transparent; color: var(--ink-3); border-radius: 999px; padding: 2px 9px; font-size: 12px; cursor: pointer; }
button.mini:hover { color: var(--ink); border-color: var(--ink-3); }
.resume-note { margin: 8px 0 0; font-size: 13px; }
.upnext { margin: 10px 0 0; }
.upnext-in { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; padding: 12px 16px; border-radius: 12px; background: var(--bg-2); border: 1px solid color-mix(in srgb, var(--amber) 40%, transparent); }
.upnext-title { font-weight: 650; margin-top: 2px; }
.upnext-actions { display: flex; gap: 8px; }
.player video { width: 100%; height: 100%; display: block; background: #000; }
.player #player { width: 100%; height: 100%; }

/* Courses hub: shelves, note, filter */
.seg .n { font-weight: 500; color: var(--ink-3); margin-left: 4px; font-variant-numeric: tabular-nums; }
.shelf-note { max-width: 72ch; color: var(--ink-2); font-size: 14.5px; line-height: 1.5; margin: -6px 0 12px; }
.shelf-note b { color: var(--ink); font-weight: 600; }
.filter { flex: 1 1 260px; max-width: 420px; }
.filter input { width: 100%; padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg-2); color: var(--ink); font: inherit; font-size: 14px; }
.filter input:focus { outline: 2px solid var(--focus); outline-offset: 0; border-color: transparent; }
.filter input::placeholder { color: var(--ink-3); }
.cwrap { display: contents; }
.cwrap[hidden] { display: none; }

/* replication status chips, primary-source boxes, shelves */
.status { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .01em; padding: 2px 8px; border-radius: 999px; border: 1px solid transparent; vertical-align: middle; text-decoration: none; }
.status.s-replicated { background: color-mix(in srgb, var(--mint) 18%, transparent); color: var(--mint); }
.status.s-failed, .status.s-myth, .status.s-fraud { background: var(--coral-soft); color: var(--coral); }
.status.s-misreported, .status.s-overstated, .status.s-reversed { background: color-mix(in srgb, var(--amber) 18%, transparent); color: var(--amber-text); }
.status.s-smaller, .status.s-mixed { background: var(--bg-3); color: var(--ink-2); border-color: var(--line); }
h2 .status { margin-left: 6px; font-size: 11.5px; }
.tag.good { background: var(--mint); color: var(--mint-ink); }
.box.good { border-color: color-mix(in srgb, var(--mint) 45%, transparent); }
.box.good h2 { color: var(--mint); }
.box.orig { border-color: var(--inst); }
.box.orig .people, .shelf-text .people { color: var(--ink-2); font-size: 13.5px; margin: -4px 0 8px; }
.box.orig h3 { font-size: 13px; text-transform: none; letter-spacing: 0; color: var(--ink-3); margin: 12px 0 4px; }
ul.papers { margin: 6px 0 8px; padding-left: 18px; font-size: 13px; color: var(--ink-2); line-height: 1.5; }
ul.papers li { margin: 2px 0; }
ul.papers a { color: var(--inst); text-decoration: underline; word-break: break-all; }
ul.papers.sub { margin: 8px 0 0; }
.care-h { margin: 14px 0 10px; font-size: 14px; color: var(--ink-2); }
.shelf { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 22px; }
.shelf-item { display: grid; grid-template-columns: minmax(220px, 300px) minmax(0, 1fr); gap: 18px; align-items: start; padding: 18px 0; border-top: 1px solid var(--line); }
.shelf-item:first-child { border-top: 0; }
.shelf-media .card.small { width: 100%; }
.shelf-none { aspect-ratio: 16/9; border: 1px dashed var(--line); border-radius: 12px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; padding: 14px; text-align: center; color: var(--ink-3); font-size: 13px; background: var(--bg-2); }
.shelf-none b { color: var(--ink-2); }
.shelf-text h2 { margin: 0 0 6px; font-size: 18px; text-wrap: balance; }
.shelf-text p { margin: 0 0 8px; color: var(--ink-2); font-size: 14.5px; line-height: 1.5; max-width: 70ch; }
.shelf-foot { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 13px; }
@media (max-width: 720px) { .shelf-item { grid-template-columns: 1fr; } }

/* teach me something I don't know */
.teach .teach-actions { display: flex; gap: 8px; }
.bgpicker { margin: 4px 0 14px; }
.bgchips { display: flex; flex-wrap: wrap; gap: 8px; }
.bgchip { border: 1px solid var(--line); background: var(--bg-2); color: var(--ink-2); border-radius: 999px; padding: 7px 13px; font: inherit; font-size: 13.5px; cursor: pointer; }
.bgchip:hover { color: var(--ink); border-color: var(--ink-3); }
.bgchip[aria-pressed="true"] { background: var(--inst-soft); color: var(--inst); border-color: var(--inst); font-weight: 600; }
.teach-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.teach-pick .card { width: auto; }
.teach-why { font-size: 12.5px; color: var(--ink-3); margin-bottom: 6px; text-transform: lowercase; }
.teach-why a { color: var(--inst); text-decoration: underline; }

/* pathways (quiet side feature) */
.pathline{margin:-4px 0 14px;font-size:13px;color:var(--ink-2)}
.pathline a{text-decoration:underline}
ol.path{list-style:none;margin:0;padding:0;max-width:78ch}
ol.path li{display:grid;grid-template-columns:30px 1fr;gap:12px;padding:12px 0;border-top:1px solid var(--line)}
ol.path li:first-child{border-top:0}
ol.path .num{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:600;background:var(--bg-3);color:var(--ink-2)}
ol.path li.done .num{background:var(--mint);color:var(--mint-ink)}
ol.path .plabel{font-size:12px;letter-spacing:.02em;text-transform:uppercase;color:var(--ink-3);margin-bottom:2px}
ol.path .ptarget{font-weight:600}
ol.path .pwhy{margin:4px 0 0;color:var(--ink-2);font-size:14px;line-height:1.5}

/* review round: unverified publishers, in-page confirmation, focus after navigation, shelf provenance */
.chip.inst.unverified { border-style: dashed; opacity: 0.85; }
.confirm { display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.btn.danger { background: var(--coral-soft); color: var(--coral); border-color: transparent; }
.btn.danger:hover { background: var(--coral); color: #fff; }
h1:focus { outline: none; }
h1:focus-visible { outline: 2px solid var(--focus); outline-offset: 6px; border-radius: 4px; }
.shelf-text .whose { font-size: 13px; color: var(--ink-3); }
.shelf-text .whose .form { color: var(--ink-2); font-weight: 600; }
/* Teach-me collapsed to one line until opened */
.teach-closed { padding: 2px 0 6px; }
.teachline { margin: 0; font-size: 15px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 10px; }
.linkbtn { background: none; border: 0; padding: 0; font: inherit; font-weight: 650; color: var(--amber-text, var(--amber)); cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.linkbtn:hover { color: var(--amber-2); }
/* lecturer submissions */
.section.submit .box { max-width: 72ch; }
.section.submit h2 { font-size: 18px; margin: 0 0 6px; }
/* content neighbours */
.side .because { font-size: 12px; color: var(--ink-3); margin: -6px 0 10px 2px; }
/* two-part catalog load */
.loading-note { color: var(--ink-3); }
.loading-note::before { content: ""; display: inline-block; width: 10px; height: 10px; margin-right: 8px; border-radius: 50%; border: 2px solid var(--line); border-top-color: var(--amber); vertical-align: -1px; animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .loading-note::before { animation: none; } }
/* transcript reader (watch page): the provider's own transcript, read in place, with find-in-transcript */
.tr-tools { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 8px; }
.tr-tools input { flex: 1 1 220px; min-width: 0; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg-2, transparent); color: inherit; font: inherit; font-size: 14px; }
.tr-text { margin-top: 12px; max-height: 62vh; overflow: auto; padding-right: 8px; font-size: 15px; line-height: 1.62; max-width: 68ch; }
.tr-text p { margin: 0 0 1em; }
.tr-text mark { background: color-mix(in srgb, var(--amber) 45%, transparent); color: inherit; border-radius: 3px; padding: 0 2px; }
.tr-text .tr-head { font-size: 14px; font-weight: 700; margin: 1.4em 0 0.6em; color: var(--ink-2, inherit); }
.tr-text .tr-head a { font-weight: 500; margin-left: 6px; text-decoration: underline; }