:root {
  --ink: #0f172a; --muted: #64748b; --line: #e2e8f0;
  --bg: #f8fafc; --card: #ffffff; --accent: #2563eb;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); }
.head { max-width: 940px; margin: 0 auto; padding: 48px 24px 12px; }
.head h1 { margin: 0 0 8px; font-size: 34px; letter-spacing: -0.02em; }
.sub { margin: 0; color: var(--muted); max-width: 62ch; line-height: 1.55; }
.talks { max-width: 940px; margin: 0 auto; padding: 24px; display: grid; gap: 16px; }
.empty { color: var(--muted); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 20px 22px; display: grid; gap: 14px;
}
.card__top { display: flex; flex-wrap: wrap; gap: 10px; align-items: baseline; }
.card h2 { margin: 0; font-size: 20px; letter-spacing: -0.01em; }
.card .meta { color: var(--muted); font-size: 13px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; }
.btn {
  font: inherit; font-size: 14px; padding: 8px 14px; border-radius: 9px;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 6px;
}
.btn:hover { border-color: #cbd5e1; }
.btn--primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--primary:hover { background: #1d4ed8; }
.pill {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px;
  background: #eef2ff; color: #3730a3; border-radius: 999px; padding: 2px 9px;
}
.muted { color: var(--muted); }

/* Presenter console.
   Once presenting, it takes the whole viewport — the notes are the thing being
   read from a lectern, and a 46vh strip under a list of talks was not readable.
   The index stays in the DOM so closing the console returns to it. */
.console {
  position: fixed; inset: 0; z-index: 50;
  display: flex; flex-direction: column;
  background: #0b1220; color: #e2e8f0;
}
/* `display:flex` above out-specifies the UA's `[hidden] { display: none }`, so
   without this the console stays laid out over the whole page while "hidden"
   and silently eats every click on the talk list. */
.console[hidden] { display: none; }
body.presenting { overflow: hidden; }
.console__bar {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  justify-content: space-between; padding: 12px 20px;
  border-bottom: 1px solid #1e293b; flex: 0 0 auto;
}
.console__where { display: flex; gap: 10px; align-items: baseline; min-width: 0; }
.console__where strong { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.console .muted { color: #94a3b8; }
.console__timer { font-variant-numeric: tabular-nums; font-size: 20px; display: flex; gap: 10px; align-items: baseline; }
.console__nav { display: flex; gap: 6px; }
.console .btn { background: #1e293b; border-color: #334155; color: #e2e8f0; }
.console .btn:hover { background: #273449; }
.console .btn[aria-pressed="false"] { opacity: 0.55; }

/* Notes take the room; the mirror is a reference, not the subject. */
.console__body {
  flex: 1 1 auto; min-height: 0;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 30%);
  gap: 20px; padding: 20px 24px 24px;
}
body.no-mirror .console__body { grid-template-columns: minmax(0, 1fr); }
body.no-mirror .mirror { display: none; }

.notes {
  min-height: 0; overflow: auto;
  font-size: clamp(17px, 1.5vw, 23px); line-height: 1.6;
}
.notes ul { margin: 0 0 14px; padding-left: 22px; }
.notes li { margin: 6px 0; }
.notes p { margin: 0 0 12px; }
.notes em { color: #fbbf24; font-style: normal; }
.notes .say { color: #a5b4fc; }
.notes .waiting { color: #94a3b8; font-size: 18px; }

.mirror { min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.mirror iframe {
  width: 100%; aspect-ratio: 16 / 9; border: 1px solid #1e293b;
  border-radius: 10px; background: #0f172a; display: block;
}
.mirror__cap { margin: 0; font-size: 13px; color: #94a3b8; }

@media (max-width: 900px) {
  .console__body { grid-template-columns: minmax(0, 1fr); }
  .mirror { display: none; }
}

.foot { max-width: 940px; margin: 0 auto; padding: 8px 24px 48px; color: var(--muted); font-size: 13px; }
@media (max-width: 640px) { .head { padding-top: 28px; } }