/* Nixon Tapes — ubu viewer DNA: black/white/one hard red, dense archival type,
   flat everything. Wall cards are absolutely positioned (virtualized). */

:root {
  --bg: #ffffff;
  --fg: #111111;
  --body: #333333;
  --muted: #555555;
  --faint: #999999;
  --line: #e6e6e6;
  --accent: #ff0000;
  --active-bg: #fff3f3;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 13px; line-height: 1.45; -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
body.lb-open { overflow: hidden; }

/* ── topbar (ubu black bar + red wordmark) ── */
#topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 16px;
  background: #000; color: #fff; padding: 8px 16px;
}
#wordmark { font-weight: 700; font-size: 15px; letter-spacing: 0.03em; }
#wordmark .wm-accent { color: var(--accent); }
#stats { color: #999; font-size: 11.5px; font-variant-numeric: tabular-nums; }
#search {
  flex: 1; max-width: 420px; margin-left: auto;
  background: #111; color: #fff; border: 1px solid #333; border-radius: 0;
  padding: 5px 9px; font: inherit; font-size: 12.5px; outline: none;
}
#search:focus { border-color: #777; }
#sortbar { display: flex; gap: 2px; }
#sortbar button {
  background: transparent; color: #999; border: 0; font: inherit; font-size: 11.5px;
  text-transform: uppercase; letter-spacing: 0.04em; padding: 4px 8px; cursor: pointer;
}
#sortbar button:hover { color: #fff; }
#sortbar button.on { color: var(--accent); }

/* ── wall ── */
#wall-wrap { position: relative; padding: 14px 0 60px; }
#grid { position: relative; }
.card {
  position: absolute; top: 0; left: 0;
  text-align: left; background: #fff; border: 1px solid var(--line); border-radius: 0;
  padding: 10px 12px; cursor: pointer; font: inherit; color: var(--fg);
  transition: border-color 0.1s;
}
.card:hover { border-color: var(--fg); }
.c-top { display: flex; justify-content: space-between; font-size: 11px; color: var(--faint); font-variant-numeric: tabular-nums; }
.c-conv { color: var(--accent); font-weight: 700; }
.c-title { font-weight: 700; font-size: 14px; line-height: 1.25; margin: 4px 0 3px; }
.c-people { color: var(--muted); font-size: 11.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.c-desc {
  color: var(--body); font-size: 11.5px; line-height: 1.4; margin-top: 4px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.c-foot { color: var(--faint); font-size: 10.5px; margin-top: 6px; font-variant-numeric: tabular-nums; }
#empty { text-align: center; color: var(--faint); padding: 60px 0; }

#foot {
  border-top: 1px solid var(--line); padding: 12px 16px 28px;
  color: var(--faint); font-size: 11px; line-height: 1.6; max-width: 860px;
}
#foot a { color: inherit; text-decoration: underline; }

/* ── lightbox player ── */
#lb { position: fixed; inset: 0; z-index: 50; }
#lb-scrim { position: absolute; inset: 0; background: rgba(0, 0, 0, 0.55); }
#lb-panel {
  position: absolute; inset: 4vh 0 0 0; margin: 0 auto; max-width: 900px;
  background: #fff; border: 1px solid #000; border-bottom: 0;
  display: flex; flex-direction: column; min-height: 0;
}
#lb-close {
  position: absolute; top: 10px; right: 12px; z-index: 2;
  background: none; border: 0; font-size: 18px; cursor: pointer; color: var(--faint);
}
#lb-close:hover { color: var(--fg); }
#lb-head { padding: 16px 20px 4px; }
#lb-head h2 { margin: 0; font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.lb-sub { color: var(--muted); font-size: 12px; margin-top: 2px; font-variant-numeric: tabular-nums; }
.lb-people { display: flex; flex-wrap: wrap; gap: 5px; margin: 8px 0 4px; }
.chip { border: 1px solid var(--line); padding: 1px 7px; font-size: 11px; color: var(--muted); background: #fff; }
.lb-links { display: flex; gap: 14px; font-size: 12px; margin: 2px 0 6px; }
#lb-audio { width: calc(100% - 40px); margin: 4px 20px 8px; height: 32px; display: block; }
#lb-toolbar {
  display: flex; justify-content: space-between; padding: 5px 20px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  color: var(--muted); font-size: 11.5px; font-variant-numeric: tabular-nums;
}
#lb-transcript { flex: 1; overflow-y: auto; min-height: 0; padding: 10px 20px 80px; }

.utterance {
  display: grid; grid-template-columns: 52px 1fr; gap: 12px;
  padding: 4px 8px 4px 4px; cursor: pointer;
}
.utterance:hover { background: #fafafa; }
.utterance.active { background: var(--active-bg); }
.u-time { color: var(--faint); font-size: 11px; padding-top: 3px; text-align: right; font-variant-numeric: tabular-nums; }
.u-text { margin: 0; font-size: 15px; line-height: 1.62; max-width: 72ch; }
.word { padding: 0 1px; }
.word:hover { background: #f0f0f0; }
.active-word { background: var(--accent); color: #fff; }
.empty-state { color: var(--faint); padding: 30px; text-align: center; }

@media (max-width: 700px) {
  #topbar { flex-wrap: wrap; }
  #search { order: 3; max-width: none; flex-basis: 100%; }
  #lb-panel { inset: 0; }
}

#nav-diary { color: #999; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.04em; margin-left: 12px; }
#nav-diary:hover { color: var(--accent); text-decoration: none; }

.u-spk { font-weight: 700; font-size: 11px; letter-spacing: 0.04em; color: var(--muted); }
.utterance.active .u-spk { color: var(--accent); }