/* OurTube — cool archival brutalism.
 *
 * Tokens, type scale, spacing and component specs transcribed from the Claude Design
 * project "Design system documentation" (OurTube Interface.dc.html).
 *
 * Rules the design states outright, kept here so they are not eroded by accident:
 *   radius 0 everywhere · no shadows · depth is a hairline plus one surface step
 *   accent appears only on state, never on decoration, never as a whole button fill
 *   no images, no thumbnails, no red
 */

/* --- tokens ------------------------------------------------------------------ */

:root {
  --sans: 'Instrument Sans', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;

  --bg: #f3f4f6;
  --surface: #fafbfb;
  --fg: #15181a;
  --fg-1: #3c4246;
  --fg-2: #6d7479;
  --fg-3: #9ba1a6;
  --rule: #dcdfe2;
  --rule-strong: #b8bdc1;
  --accent: #2a4fbe;
  --accent-dim: #5c79d4;

  /* density: comfortable */
  --fs-title: 20px;
  --fs-body: 15px;
  --sp-card: 28px;
  --sp-stack: 12px;
  --sp-sec: 40px;

  color-scheme: light dark;
}

/* Both themes are drawn by hand, not derived from one another. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #0d0f10;
    --surface: #151819;
    --fg: #e9ebec;
    --fg-1: #b7bcbf;
    --fg-2: #868c90;
    --fg-3: #5e6569;
    --rule: #24282a;
    --rule-strong: #3b4144;
    --accent: #8fb0ff;
    --accent-dim: #6d8ad6;
  }
}

:root[data-theme='dark'] {
  --bg: #0d0f10;
  --surface: #151819;
  --fg: #e9ebec;
  --fg-1: #b7bcbf;
  --fg-2: #868c90;
  --fg-3: #5e6569;
  --rule: #24282a;
  --rule-strong: #3b4144;
  --accent: #8fb0ff;
  --accent-dim: #6d8ad6;
}

:root[data-density='compact'] {
  --fs-title: 17px;
  --fs-body: 13.5px;
  --sp-card: 14px;
  --sp-stack: 6px;
  --sp-sec: 22px;
}

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

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 clamp(16px, 4vw, 44px) 64px;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--fg); }

h1, h2, h3 { margin: 0; letter-spacing: -0.012em; }

.page-header {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: baseline;
  justify-content: space-between;
  padding: 22px 0 18px;
  border-bottom: 1px solid var(--rule-strong);
}

.wordmark {
  font: 500 12px/1 var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg);
}
.wordmark:hover { color: var(--fg); }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font: 400 11px/1 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.nav a { color: var(--fg-2); }
.nav a:hover { color: var(--fg); }
.nav button.theme-toggle {
  border: 0;
  background: none;
  color: var(--fg-3);
  font: 400 12px/1 var(--mono);
  cursor: pointer;
  padding: 0;
}
.nav button.theme-toggle:hover { color: var(--fg); }
.nav .is-current {
  color: var(--fg);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 3px;
}

/* --- labels, sections -------------------------------------------------------- */

.label {
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--fg-2);
}
.label--dim { color: var(--fg-3); }
.label--wide { letter-spacing: 0.11em; }

.section { margin-top: var(--sp-sec); }
.section--ruled { border-top: 1px solid var(--rule-strong); padding-top: 24px; }
.section__head {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
}
.section__title { font: 500 22px/1.25 var(--sans); color: var(--fg); }
.section__rule {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule-strong);
}

.prose {
  margin: 10px 0 0;
  font: 400 14px/1.6 var(--sans);
  color: var(--fg-2);
  max-width: 74ch;
  text-wrap: pretty;
}

/* --- tab row ----------------------------------------------------------------- */

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  font: 400 12.5px/1 var(--mono);
}
.tabs a { color: var(--fg-2); }
.tabs a:hover { color: var(--fg); }
.tabs .is-current {
  color: var(--fg);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 6px;
}
.tabs__sep { color: var(--fg-3); }
.tabs__spacer { flex: 1; }

/* Density switch lives in the tab row; it is a control, not navigation. */
.switch { display: flex; border: 1px solid var(--rule-strong); }
.switch button {
  padding: 5px 9px;
  font: 400 11px/1 var(--mono);
  letter-spacing: 0.06em;
  color: var(--fg-2);
  background: none;
  border: 0;
  cursor: pointer;
}
.switch button + button { border-left: 1px solid var(--rule-strong); }
.switch button[aria-pressed='true'] { color: var(--fg); background: var(--surface); }

/* --- buttons ----------------------------------------------------------------- */

.btn {
  height: 28px;
  padding: 0 12px;
  border: 1px solid var(--rule-strong);
  background: none;
  color: var(--fg-1);
  font: 400 11px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: border-color 80ms linear, color 80ms linear;
}
.btn:hover { border-color: var(--fg-2); color: var(--fg); }
.btn--primary { border-color: var(--fg); background: var(--fg); color: var(--bg); }
.btn--primary:hover { color: var(--bg); border-color: var(--fg); }
.btn--quiet { color: var(--fg-2); }
.btn[disabled] { border-color: var(--rule); color: var(--fg-3); cursor: default; }
.btn--tall { height: 30px; padding: 0 14px; }

.btn--vote {
  width: 28px;
  padding: 0;
  justify-content: center;
  color: var(--fg-2);
  font: 400 12px/1 var(--mono);
  letter-spacing: 0;
  text-transform: none;
}
/* Active vote: border and glyph take the accent. Never a fill. */
.btn--vote.is-active { border-color: var(--accent); color: var(--accent); }
.btn--vote-strong { width: auto; padding: 0 6px; letter-spacing: -1px; }

.actions { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.actions__gap { width: 8px; }

/* --- metadata line ----------------------------------------------------------- */

.meta {
  font: 400 12.5px/1.5 var(--mono);
  color: var(--fg-1);
}
.meta a { color: var(--fg-2); border-bottom: 1px solid var(--rule-strong); }
.meta a:hover { color: var(--fg); }

/* --- card -------------------------------------------------------------------- */

.card {
  border-top: 1px solid var(--rule);
  padding: var(--sp-card) 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-stack);
}
.card:last-of-type { border-bottom: 1px solid var(--rule); }
.card__title {
  font: 500 var(--fs-title)/1.28 var(--sans);
  letter-spacing: -0.01em;
  color: var(--fg);
  max-width: 62ch;
}
.card__title:hover { color: var(--fg-1); }
.card__summary {
  margin: 0;
  font: 400 var(--fs-body)/1.58 var(--sans);
  color: var(--fg-1);
  max-width: 72ch;
  text-wrap: pretty;
}
.card__why {
  margin: 0;
  font: 400 13px/1.5 var(--sans);
  color: var(--fg-2);
  max-width: 72ch;
  text-wrap: pretty;
}

/* --- shelf ------------------------------------------------------------------- */

.shelf {
  margin-top: var(--sp-sec);
  border: 1px solid var(--rule-strong);
  background: var(--surface);
  padding: calc(var(--sp-card) * 0.62) 20px;
}
.shelf__title {
  display: block;
  margin-top: 10px;
  font: 500 var(--fs-title)/1.28 var(--sans);
  letter-spacing: -0.01em;
  color: var(--fg);
  max-width: 60ch;
}
.shelf__meta { margin-top: 8px; }
.shelf .bar { margin-top: 14px; }
.shelf__item + .shelf__item {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}

/* --- progress ---------------------------------------------------------------- */

.bar { height: 3px; background: var(--rule); }
.bar__fill {
  height: 3px;
  background: var(--accent);
  transition: width 240ms linear;
}
.bar__fill--quiet { background: var(--rule-strong); }

/* --- tiles ------------------------------------------------------------------- */

/* Tiles sit in a 1px grid gutter, not as separate boxes. */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
  gap: 1px;
  background: var(--rule-strong);
  border: 1px solid var(--rule-strong);
}
.tiles--tight { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); background: var(--rule); border-color: var(--rule); }
.tile { background: var(--bg); padding: 18px; }
.tile__value {
  margin-top: 14px;
  font: 400 24px/1 var(--mono);
  color: var(--fg);
}
.tile__limit { color: var(--fg-3); font-size: 15px; }
.tile .bar { margin-top: 14px; }
.tile__foot {
  margin-top: 8px;
  font: 400 11px/1.6 var(--mono);
  color: var(--fg-3);
}

/* --- key/value lists --------------------------------------------------------- */

.kv {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  font: 400 13px/1.4 var(--mono);
}
.kv:last-child { border-bottom: 0; }
.kv__key { color: var(--fg-1); }
.kv__value { color: var(--fg); }
.kv__value--flag { color: var(--accent); }
.kv__value--quiet { color: var(--fg-2); }

/* --- tables ------------------------------------------------------------------ */

.table-wrap { overflow-x: auto; border: 1px solid var(--rule-strong); }
.table-wrap--bare { border: 0; }
table { border-collapse: collapse; width: 100%; }
th {
  text-align: left;
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--fg-2);
  padding: 11px 14px;
  border-bottom: 1px solid var(--rule-strong);
  white-space: nowrap;
}
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--rule);
  font: 400 13px/1.4 var(--mono);
  color: var(--fg-1);
}
tbody tr:last-child td { border-bottom: 0; }
/* Names in sans, every number mono and right-aligned. No zebra striping. */
.cell-name { font: 400 14px/1.4 var(--sans); color: var(--fg); }
.num { text-align: right; }
.num--flag { color: var(--accent); }
.num--quiet { color: var(--fg-2); }
.cell-note { font: 400 13px/1.5 var(--sans); color: var(--fg-2); }

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

.watch { max-width: 960px; display: grid; gap: var(--sp-sec); margin-top: var(--sp-sec); }
.player-frame {
  border: 1px solid var(--rule-strong);
  background: var(--surface);
  aspect-ratio: 16 / 9;
}
.player-frame > div, .player-frame iframe { width: 100%; height: 100%; border: 0; display: block; }
.player-bar {
  border: 1px solid var(--rule-strong);
  border-top: none;
  background: var(--surface);
  padding: 12px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  font: 400 12.5px/1 var(--mono);
  color: var(--fg-1);
}
.player-bar .bar { flex: 1; min-width: 120px; }
.watch__title {
  font: 500 clamp(22px, 3vw, 30px)/1.22 var(--sans);
  letter-spacing: -0.015em;
  max-width: 26ch;
}
.watch__block { margin-top: 14px; border-top: 1px solid var(--rule); padding-top: 18px; }
.watch__block p {
  margin: 12px 0 0;
  font: 400 var(--fs-body)/1.62 var(--sans);
  color: var(--fg-1);
  max-width: 70ch;
  text-wrap: pretty;
}
.watch__block .prose-2 { font-size: 14px; color: var(--fg-2); }
/* The rank arithmetic, shown rather than summarised. */
.breakdown {
  margin-top: 14px;
  font: 400 12px/1.9 var(--mono);
  color: var(--fg-2);
  border-left: 1px solid var(--rule-strong);
  padding-left: 14px;
}
.breakdown__total { color: var(--fg); }

/* --- forms ------------------------------------------------------------------- */

textarea, input[type='search'] {
  display: block;
  width: 100%;
  border: 1px solid var(--rule-strong);
  background: var(--surface);
  color: var(--fg-1);
  font: 400 13.5px/1.75 var(--mono);
  padding: 18px;
  outline: none;
  border-radius: 0;
}
textarea { min-height: 300px; resize: vertical; margin-top: 18px; }
textarea:focus, input[type='search']:focus { border-color: var(--fg-2); }
input[type='search'] { padding: 8px 10px; font-size: 12.5px; }
.form-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; align-items: center; }
.form-note { font: 400 12px/1 var(--mono); color: var(--fg-3); }

/* --- misc -------------------------------------------------------------------- */

.foot { padding-top: 20px; font: 400 12px/1.6 var(--mono); color: var(--fg-3); }
.empty {
  margin-top: var(--sp-sec);
  border: 1px solid var(--rule);
  padding: 64px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
}
.empty__title { font: 500 22px/1.3 var(--sans); color: var(--fg); }
.empty p { margin: 0; font: 400 15px/1.58 var(--sans); color: var(--fg-2); max-width: 56ch; text-wrap: pretty; }
.empty__facts {
  font: 400 12.5px/1.7 var(--mono);
  color: var(--fg-2);
  border-top: 1px solid var(--rule);
  padding-top: 14px;
  margin-top: 6px;
  width: 100%;
  max-width: 56ch;
}
.badge {
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--rule-strong);
  color: var(--fg-2);
  padding: 4px 7px;
}
.badge--open { border-color: var(--accent); color: var(--accent); }
.moved { border-top: 1px solid var(--rule); padding: var(--sp-card) 0; color: var(--fg-2); }
.moved__row { display: flex; flex-wrap: wrap; gap: 12px; align-items: baseline; justify-content: space-between; }
.bad { color: var(--accent); }

/* htmx swaps fade; nothing else enters the screen animated. */
.htmx-swapping { opacity: 0; transition: opacity 120ms linear; }
.htmx-settling { opacity: 0; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* --- digest ------------------------------------------------------------ */
/* Key points read as a list of claims, so they are set tighter than prose
   and hang their markers in the gutter where the eye can run down them. */
.digest__points {
  margin: 0 0 14px;
  padding-left: 18px;
  list-style: square;
}

.digest__points li {
  margin-bottom: 8px;
  line-height: 1.5;
}

.digest__points li::marker {
  color: var(--fg-3);
}

.digest__takeaway {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--rule);
  color: var(--fg);
}

/* The spinner only exists while HTMX has a request in flight. */
.htmx-indicator {
  display: none;
  margin-left: 10px;
}

.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
  display: inline;
}