/* Chrome for the openings index (learn.html) and the player (tutorial.html).
   Tokens, page shell, buttons and the board come from shared.css. */

/* One small-caps mono label, worn four ways — the size and colour are the
   only things that differ, so the recipe is written once. */
.eyebrow, .card-meta, .tag, .fen span {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow { font-size: .68rem; letter-spacing: .2em; }

.standfirst { color: var(--muted); max-width: 62ch; font-size: .95rem; }

/* ── index ──────────────────────────────────────────────────────── */
.intro {
  width: var(--page);
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 16px;
  animation: var(--rise); animation-delay: .08s;
}
.intro h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1.15;
  text-wrap: balance;
}
.intro h2 em { color: var(--gold-bright); font-style: normal; }

.cards {
  width: var(--page);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 16px;
  list-style: none;
  padding: 0;
  animation: var(--rise); animation-delay: .14s;
}
.card {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--well);
  text-decoration: none;
  color: inherit;
  transition: border-color .15s ease, transform .15s ease, background .15s ease;
}
.card:hover {
  border-color: var(--gold-line);
  background: var(--gold-wash);
  transform: translateY(-2px);
}
.card-text { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.card h3 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--gold-bright);
}
.card p { color: var(--muted); font-size: .88rem; }
.card-meta { display: flex; gap: 10px; }
.card-meta span + span::before { content: "·"; margin-right: 10px; opacity: .6; }

.empty { width: var(--page); color: var(--muted); }

/* ── player ─────────────────────────────────────────────────────── */
.study {
  width: var(--page);
  display: flex;
  gap: clamp(22px, 4vw, 40px);
  align-items: flex-start;
  justify-content: center;
  animation: var(--rise); animation-delay: .14s;
}
.study #boardwrap { gap: 12px; }

.fen {
  display: flex;
  align-items: center;
  gap: 10px;
  width: var(--board-w);
  font-family: var(--mono);
  font-size: .64rem;
  color: var(--muted);
  background: var(--well);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  padding: 7px 9px;
  cursor: pointer;
  text-align: left;
  transition: color .15s ease, border-color .15s ease;
}
.fen:hover { color: var(--ink); border-color: var(--gold-line); }
.fen code { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fen span { flex: 0 0 auto; font-size: .58rem; letter-spacing: .12em; color: var(--gold); }

.note {
  flex: 1 1 340px;
  min-width: 0;
  max-width: 30rem;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.note-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.ply {
  font-family: var(--mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gold-bright);
  font-variant-numeric: tabular-nums;
}
.tag { font-size: .6rem; border: 1px solid var(--hairline); border-radius: 999px; padding: 3px 10px; }
.note h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.25;
  text-wrap: balance;
}
#body { display: flex; flex-direction: column; gap: 11px; }
#body p { color: var(--ink-soft); line-height: 1.55; }
#body b { color: var(--gold-bright); font-weight: 700; }

.controls { display: flex; align-items: center; gap: 10px; margin-top: 4px; }
.counter {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  margin-left: auto;
}

/* the move score, which doubles as the scrubber */
.score {
  width: var(--page);
  border-top: 1px solid var(--hairline);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.ribbon { display: flex; flex-wrap: wrap; gap: 5px; }
.step {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px;
  padding: 4px 9px;
  cursor: pointer;
  transition: color .13s ease, background .13s ease;
}
.step:hover { color: var(--ink); background: var(--ink-wash); }
.step[aria-current="true"] { color: var(--on-gold); background: var(--gold); border-color: var(--gold); }

@media (max-width: 900px) {
  .study { flex-direction: column; align-items: center; }
  .note { width: var(--board-w); flex-basis: auto; max-width: none; }
  .cards { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .card { flex-direction: column; align-items: flex-start; }
}