/* fcc-dna — site-specific Field Bulletin layer.
 *
 * Per-site accent: chromosome violet (the iconic Giemsa-stain banding).
 * dna-canvas.js's base colors (A=red, T=amber, G=emerald, C=blue) are
 * domain encoding — left untouched.
 */

/* !important required because /shared/fcc-theme-boot.js writes --accent
   as inline-style on <html>, beating stylesheet specificity. */
:root, html[data-mode="dark"] {
  --accent:      #b78dd9 !important;
  --accent-2:    #d0b0e8 !important;
  --accent-wash: color-mix(in srgb, #b78dd9 12%, transparent) !important;
  --accent-ink:  #0a0b0d !important;
}
html[data-mode="light"] {
  --accent:      #7a4ea0 !important;
  --accent-2:    #936fb3 !important;
  --accent-wash: color-mix(in srgb, #7a4ea0 8%, transparent) !important;
  --accent-ink:  #ffffff !important;
}

/* ── Hero — double helix ────────────────────────────────────── */
.hero-card { padding: 1.75rem 1.5rem 1.5rem; }
.hero-lab {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(260px, 480px) 1fr;
  align-items: start;
}
@media (max-width: 720px) { .hero-lab { grid-template-columns: 1fr; } }

.hero-canvas {
  width: 100%;
  height: 480px;
  display: block;
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-radius: 0;
}
.hero-controls {
  display: flex; flex-direction: column; gap: 1rem;
  padding-top: 0.25rem;
}
.hero-hint {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--ink-2, var(--dim));
  line-height: 1.6;
}
.hero-readouts {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(2, 1fr);
}
.readout {
  padding: 0.6rem 0.85rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
}
.readout-label {
  display: block;
  font: 500 0.66rem/1 var(--sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3, var(--dim));
  margin-bottom: 0.35rem;
}
.readout-value {
  display: block;
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--accent);
  font-feature-settings: "tnum" 1, "zero" 1;
  letter-spacing: -0.01em;
}
.legend {
  display: flex; flex-wrap: wrap; gap: 0.85rem;
  margin-top: 0.25rem;
  font: 500 0.74rem var(--mono);
  color: var(--ink-3, var(--dim));
}
.legend-item { display: inline-flex; align-items: center; gap: 0.4rem; }
.legend-dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }

/* ── Codon Translator ───────────────────────────────────────── */
.codon-layout { display: flex; flex-direction: column; gap: 0.85rem; }
.tab-intro {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.88rem;
  color: var(--ink-2, var(--dim));
  line-height: 1.6;
  max-width: 640px;
}
.codon-controls {
  display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: end;
}
.codon-controls .control-group { flex: 1; min-width: 240px; }
.frame-buttons { display: flex; gap: 0.3rem; }
.frame-btn { padding: 0.4rem 0.75rem !important; font-size: 0.78rem !important; }
.frame-btn.active {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.codon-output {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
  margin-top: 0.5rem;
}
.codon-cell {
  display: flex; flex-direction: column; align-items: center;
  padding: 0.5rem 0.6rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
  min-width: 64px;
}
.codon-bases {
  font: 500 0.85rem 'JetBrains Mono', ui-monospace, monospace;
  color: var(--text);
  letter-spacing: 0.06em;
}
.codon-aa {
  font: 600 1.2rem var(--serif);
  color: var(--accent);
  margin-top: 0.25rem;
}
.codon-aa-name {
  font: 500 0.66rem var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3, var(--dim));
}
.codon-cell.aa-start { border-top-color: #7dd3a4; }
.codon-cell.aa-start .codon-aa { color: #7dd3a4; }
.codon-cell.aa-stop  { border-top-color: #fb7185; }
.codon-cell.aa-stop  .codon-aa { color: #fb7185; }

.protein-output {
  margin-top: 0.85rem;
  padding: 0.75rem 1rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
}
.protein-label {
  font: 500 0.66rem/1 var(--sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3, var(--dim));
  margin-bottom: 0.4rem;
}
.protein-sequence {
  font: 500 1rem 'JetBrains Mono', ui-monospace, monospace;
  color: var(--text);
  letter-spacing: 0.06em;
  word-break: break-all;
}
.protein-stats {
  margin-top: 0.4rem;
  font: 500 0.78rem var(--mono);
  color: var(--ink-3, var(--dim));
  font-feature-settings: "tnum" 1;
}

/* ── Base Pairing ───────────────────────────────────────────── */
.pairing-layout { display: flex; flex-direction: column; gap: 0.85rem; }
.pairing-output {
  margin-top: 0.5rem;
  padding: 0.85rem 1rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
  overflow-x: auto;
}
.pairing-row {
  display: flex; gap: 0.1rem; align-items: center;
  font-family: var(--mono);
  margin-bottom: 0.3rem;
}
.pairing-row-label {
  flex: 0 0 110px;
  font: 500 0.66rem/1 var(--sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3, var(--dim));
  padding-right: 0.5rem;
}
.pairing-base {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.6em; height: 1.7em;
  font-size: 0.95rem;
  font-weight: 500;
}
.pairing-base.A { color: #ef4444; }
.pairing-base.T { color: #fbbf24; }
.pairing-base.G { color: #10b981; }
.pairing-base.C { color: #3b82f6; }
.pairing-bond {
  font-family: var(--mono);
  color: var(--ink-3, var(--dim));
  font-size: 0.85rem;
}
.pairing-stats {
  display: grid; gap: 0.5rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.pairing-stat {
  padding: 0.6rem 0.8rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 0.25rem;
}
.pairing-stat-label {
  font: 500 0.66rem/1 var(--sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3, var(--dim));
}
.pairing-stat-value {
  font: 500 0.95rem var(--mono);
  color: var(--accent);
  font-feature-settings: "tnum" 1, "zero" 1;
}

/* ── Genetic Diseases ───────────────────────────────────────── */
.disease-layout { display: flex; flex-direction: column; gap: 0.85rem; }
.disease-grid {
  display: grid; gap: 0.5rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.disease-tile {
  text-align: left;
  padding: 0.7rem 0.85rem;
  background: var(--panel-2);
  border: 0; border-top: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  display: flex; flex-direction: column; gap: 0.3rem;
  transition: border-top-color var(--dur-1) var(--ease-in-out);
}
.disease-tile:hover { border-top-color: var(--accent); }
.disease-tile.active { border-top-color: var(--accent); background: var(--accent-wash); }
.disease-tile-name {
  font: 600 0.95rem var(--serif);
  color: var(--text);
  line-height: 1.25;
}
.disease-tile-gene {
  font: 500 0.78rem var(--mono);
  color: var(--accent);
  font-feature-settings: "tnum" 1;
}
.disease-tile-inh {
  font: 500 0.7rem/1 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3, var(--dim));
}
.disease-detail {
  margin-top: 0.5rem;
  padding: 1rem 1.1rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.disease-detail-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 0.75rem; flex-wrap: wrap;
  margin-bottom: 0.6rem;
}
.disease-detail-name {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
}
.disease-detail-inh {
  font: 500 0.7rem/1 var(--sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.disease-detail p {
  margin: 0.35rem 0;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--ink-2, var(--text));
}
.disease-detail strong {
  font: 500 0.66rem var(--sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3, var(--dim));
  margin-right: 0.4rem;
}

@media (max-width: 720px) {
  .hero-canvas { height: 380px; }
  .hero-readouts { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .hero-canvas { height: 320px; }
  .codon-cell { min-width: 56px; padding: 0.4rem 0.45rem; }
}
