/* /tones/ — the four tones + neutral. Rides on shared/base.css tokens. */

.intro {
  font-size: calc(0.95rem * var(--scale)); color: var(--muted);
  line-height: 1.7; margin-bottom: 0; max-width: 62ch;
}
.intro em     { color: var(--red); font-style: italic; }
.intro strong { color: var(--navy); }

/* ── Tone cards ──────────────────────────────────── */
.tone-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.9rem;
}
.tone-card {
  display: grid; justify-items: center; gap: 0.4rem;
  background: var(--white); border: 1px solid var(--border);
  border-top: 3px solid var(--muted); border-radius: 10px;
  padding: 1.3rem 0.8rem 1.1rem; cursor: pointer;
  font-family: inherit; text-align: center; transition: box-shadow 0.18s, transform 0.18s;
}
.tone-card:hover   { box-shadow: 0 6px 20px rgba(0,0,0,0.09); transform: translateY(-2px); }
.tone-card.playing { box-shadow: 0 6px 20px rgba(0,0,0,0.12); }

.tone-card.t1 { border-top-color: var(--red); }
.tone-card.t2 { border-top-color: var(--gold); }
.tone-card.t3 { border-top-color: var(--green); }
.tone-card.t4 { border-top-color: var(--navy); }
.tone-card.t0 { border-top-color: var(--muted); }

.tone-no {
  font-size: calc(1.4rem * var(--scale)); font-weight: 800; color: var(--navy); line-height: 1;
  display: flex; flex-direction: column; align-items: center; gap: 0.2rem;
}
.tone-name {
  font-size: 0.6rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--muted);
}
.tone-syl { font-size: calc(1.5rem * var(--scale)); color: var(--red); line-height: 1; }
.tone-hz  { font-family: 'LXGW WenKai', 'PingFang SC', serif; font-size: calc(2rem * var(--scale)); color: var(--ink); line-height: 1; }
.tone-gloss { font-size: 0.82rem; color: var(--muted); }

/* Per-card contour, colour-matched to the tone */
.contour { width: 100%; max-width: 84px; height: auto; }
.contour .grid line { stroke: var(--border); stroke-width: 1; }
.contour polyline, .contour circle { fill: none; stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.contour circle { fill: currentColor; }
.t1 .contour { color: var(--red); }
.t2 .contour { color: var(--gold); }
.t3 .contour { color: var(--green); }
.t4 .contour { color: var(--navy); }
.t0 .contour { color: var(--muted); }
.contour polyline { stroke: currentColor; }
.contour circle   { stroke: currentColor; }

/* ── Combined contour chart (navy section) ───────── */
.contour-all { width: 100%; max-width: 480px; height: auto; margin: 0.5rem 0 1.6rem; display: block; }
.contour-all .grid line { stroke: rgba(255,255,255,0.14); stroke-width: 1; }
.contour-all .lvl { fill: rgba(255,255,255,0.4); font-size: 11px; }
.contour-all polyline { fill: none; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.contour-all .t1 { stroke: #E86A78; }
.contour-all .t2 { stroke: var(--gold); }
.contour-all .t3 { stroke: #5FB07A; }
.contour-all .t4 { stroke: #7E93C8; }

/* ── Cross-link (from yan-se house style) ────────── */
.xlink {
  display: flex; align-items: center; gap: 1rem;
  background: var(--navy); color: white;
  border-radius: 10px; padding: 1.1rem 1.4rem;
  text-decoration: none; transition: background 0.18s; margin-top: 2rem;
}
.xlink:hover { background: var(--navy2); }
.xl-label { font-size: 0.6rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold); font-weight: 600; display: block; margin-bottom: 0.2rem; }
.xl-title { font-size: 1.1rem; font-weight: 700; }
.xl-py    { font-size: 0.75rem; color: var(--gold); margin-top: 0.15rem; }
.xl-desc  { font-size: 0.78rem; color: rgba(255,255,255,0.55); margin-top: 0.2rem; }
.xl-arrow { margin-left: auto; font-size: 1.4rem; color: var(--gold); flex-shrink: 0; }

@media (max-width: 620px) {
  .tone-grid { grid-template-columns: repeat(2, 1fr); }
}