/* fcc-hearing — site-specific Field Bulletin layer.
 *
 * Per-site accent: auditory rose-crimson — the color of a vintage VU
 * meter peaking red and the warm flush of a hearing aid LED. Distinct
 * from clocks chronograph red (more orange-red) and color's fuchsia
 * (pinker, more chromatic).
 */

/* !important required because /shared/fcc-theme-boot.js writes --accent
   as inline-style on <html>, beating stylesheet specificity. */
:root, html[data-mode="dark"] {
  --accent:      #e11d48 !important;
  --accent-2:    #f43f5e !important;
  --accent-wash: color-mix(in srgb, #e11d48 12%, transparent) !important;
  --accent-ink:  #ffffff !important;
}
html[data-mode="light"] {
  --accent:      #9f1239 !important;
  --accent-2:    #be1846 !important;
  --accent-wash: color-mix(in srgb, #9f1239 8%, transparent) !important;
  --accent-ink:  #ffffff !important;
}

/* ── Hero — Ear Anatomy ─────────────────────────────────────── */
.hero-card { padding: 1.75rem 1.5rem 1.5rem; }
.ear-canvas-wrap {
  width: 100%;
  background: var(--bg);
  border-top: 1px solid var(--border);
  margin-top: 0.85rem;
}
.ear-canvas {
  width: 100%;
  height: 400px;
  display: block;
}
.ear-controls {
  display: flex; gap: 0.4rem; flex-wrap: wrap;
  margin-top: 0.85rem;
}
.ear-detail {
  margin-top: 0.85rem;
  padding: 0.85rem 1rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
  font-family: var(--serif);
  font-size: 0.92rem;
  color: var(--ink-2, var(--text));
  line-height: 1.55;
  min-height: 1.5em;
}

/* ── Equal Loudness Contours ────────────────────────────────── */
.loudness-canvas-wrap {
  width: 100%;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.loudness-canvas {
  width: 100%;
  height: 360px;
  display: block;
  cursor: crosshair;
}
.loudness-detail {
  margin-top: 0.85rem;
  padding: 0.85rem 1rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
  font: 500 0.92rem var(--mono);
  color: var(--accent);
  font-feature-settings: "tnum" 1, "zero" 1;
  min-height: 1.5em;
}

/* ── Tab intro (shared playground pattern) ──────────────────── */
.tab-intro {
  margin: 0 0 0.85rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--ink-2, var(--dim));
  line-height: 1.6;
  max-width: 640px;
}

/* ── Hearing Range Test ─────────────────────────────────────── */
.hearing-warning {
  padding: 0.85rem 1rem;
  background: var(--accent-wash);
  border-top: 2px solid var(--accent);
  font-family: var(--serif);
  font-size: 0.92rem;
  color: var(--ink-2, var(--text));
  line-height: 1.55;
  margin-bottom: 0.85rem;
}
.hearing-warning strong { color: var(--accent); }

.freq-grid {
  display: grid;
  gap: 0.4rem;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  margin-bottom: 0.85rem;
}
.freq-btn {
  padding: 0.6rem 0.8rem;
  background: var(--panel-2);
  border: 0; border-top: 1px solid var(--border);
  color: var(--ink-2, var(--text));
  cursor: pointer;
  display: flex; flex-direction: column; gap: 0.3rem;
  text-align: left;
  font: 500 0.85rem var(--mono);
  transition: border-top-color var(--dur-1) var(--ease-in-out);
}
.freq-btn:hover, .freq-btn.active { border-top-color: var(--accent); color: var(--accent); }
.freq-btn-hz {
  font: 500 0.95rem var(--mono);
  color: var(--accent);
  font-feature-settings: "tnum" 1;
}
.freq-btn-label {
  font: 500 0.7rem/1 var(--sans);
  letter-spacing: 0.06em;
  color: var(--ink-3, var(--dim));
}

.volume-row {
  display: grid; gap: 0.75rem;
  grid-template-columns: 80px 1fr 60px;
  align-items: center;
  padding: 0.7rem 0.95rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
}
.volume-row label {
  font: 500 0.66rem/1 var(--sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3, var(--dim));
}
.range-input { width: 100%; }
.range-info {
  margin-top: 0.85rem;
  padding: 0.7rem 0.95rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
  font-family: var(--serif);
  font-size: 0.92rem;
  color: var(--ink-2, var(--text));
  line-height: 1.55;
  min-height: 1.5em;
}

/* ── Frequency Discrimination ───────────────────────────────── */
.disc-controls {
  display: grid; gap: 0.75rem;
  grid-template-columns: 1fr;
  margin-bottom: 0.85rem;
}
.disc-actions {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
  margin-bottom: 0.85rem;
}
.disc-answer-row {
  display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center;
  padding: 0.85rem 1rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
  margin-bottom: 0.85rem;
}
.disc-question {
  font: 500 0.92rem var(--sans);
  color: var(--ink-2, var(--text));
  margin-right: 0.5rem;
}
.disc-score {
  padding: 0.7rem 0.95rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
  font: 500 0.95rem var(--mono);
  color: var(--accent);
  font-feature-settings: "tnum" 1, "zero" 1;
  min-height: 1.5em;
}

/* ── Noise Calculator ───────────────────────────────────────── */
.noise-inputs {
  display: grid; gap: 0.75rem;
  grid-template-columns: 1fr 1fr auto;
  align-items: end;
  margin-bottom: 0.85rem;
}
@media (max-width: 720px) { .noise-inputs { grid-template-columns: 1fr; } }
.noise-results {
  padding: 1rem 1.1rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--ink-2, var(--text));
}
.noise-results-headline {
  font: 600 1.05rem var(--serif);
  color: var(--accent);
  margin-bottom: 0.4rem;
}
.noise-results-rows {
  display: grid; gap: 0.4rem;
  grid-template-columns: 140px 1fr;
  font-family: var(--mono);
  font-feature-settings: "tnum" 1, "zero" 1;
  font-size: 0.85rem;
}
.noise-results-label {
  font: 500 0.66rem/1 var(--sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3, var(--dim));
}
.noise-results-value { color: var(--text); }

@media (max-width: 720px) {
  .ear-canvas { height: 280px; }
  .loudness-canvas { height: 240px; }
}
