/* fcc-vision — site-specific Field Bulletin layer.
 *
 * Per-site accent: retinal emerald — the green of fundus photography
 * and the OCT scan. Distinct from cipher's phosphor mint by being deeper
 * and more saturated.
 */

/* !important required because /shared/fcc-theme-boot.js writes --accent
   as inline-style on <html>, beating stylesheet specificity. */
:root, html[data-mode="dark"] {
  --accent:      #10b981 !important;
  --accent-2:    #34d399 !important;
  --accent-wash: color-mix(in srgb, #10b981 12%, transparent) !important;
  --accent-ink:  #0a0b0d !important;
}
html[data-mode="light"] {
  --accent:      #047857 !important;
  --accent-2:    #059669 !important;
  --accent-wash: color-mix(in srgb, #047857 8%, transparent) !important;
  --accent-ink:  #ffffff !important;
}

/* ── Hero — Eye cross-section ───────────────────────────────── */
.hero-card { padding: 1.75rem 1.5rem 1.5rem; }
.hero-lab {
  display: grid; gap: 1.25rem;
  grid-template-columns: minmax(260px, 1fr) minmax(220px, 1fr);
  align-items: start;
}
@media (max-width: 720px) { .hero-lab { grid-template-columns: 1fr; } }
.hero-canvas {
  width: 100%;
  height: 380px;
  display: block;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.hero-controls {
  display: flex; flex-direction: column; gap: 0.85rem;
  padding-top: 0.25rem;
}
.hero-readouts {
  display: grid; gap: 0.55rem;
  grid-template-columns: 1fr 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: 500 0.95rem var(--mono);
  color: var(--accent);
  font-feature-settings: "tnum" 1, "zero" 1;
  letter-spacing: -0.01em;
}

/* ── Tab intro (shared in playground) ───────────────────────── */
.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;
}
.lab-canvas {
  width: 100%; height: 300px;
  display: block;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.lab-readouts {
  display: grid; gap: 0.5rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  margin-top: 0.85rem;
}
.lab-readouts .readout-row {
  padding: 0.6rem 0.85rem;
  background: var(--panel-2);
  border-top: 1px solid var(--border);
}
.lab-readouts .readout-row-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;
}
.lab-readouts .readout-row-value {
  display: block;
  font: 500 0.95rem var(--mono);
  color: var(--accent);
  font-feature-settings: "tnum" 1;
}

/* ── Color Vision Simulator ─────────────────────────────────── */
.color-layout { display: flex; flex-direction: column; gap: 0.85rem; }

/* ── Blind Spot Demo ────────────────────────────────────────── */
.blindspot-layout { display: flex; flex-direction: column; gap: 0.85rem; }
.bs-stage {
  position: relative;
  width: 100%;
  height: 240px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 2rem;
  overflow: hidden;
}
.bs-plus {
  font: 700 2rem var(--mono);
  color: var(--ink-3, var(--dim));
  margin-right: auto;
}
.bs-dot {
  width: 18px; height: 18px;
  background: var(--accent);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.blindspot-hint {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--ink-3, var(--dim));
  line-height: 1.55;
}

/* ── Visual Acuity ──────────────────────────────────────────── */
.acuity-layout { display: flex; flex-direction: column; gap: 0.85rem; }
.acuity-controls {
  display: grid; gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.acuity-visual-label {
  font: 500 0.66rem/1 var(--sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3, var(--dim));
}
.acu-letter {
  display: flex; align-items: center; justify-content: center;
  width: 100%;
  min-height: 200px;
  padding: 2rem 1rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
  font-family: var(--serif);
  font-weight: 700;
  font-size: 8rem;
  line-height: 1;
  color: var(--text);
}

@media (max-width: 720px) {
  .hero-canvas { height: 280px; }
  .lab-canvas { height: 220px; }
}
@media (max-width: 480px) {
  .hero-canvas { height: 220px; }
  .acu-letter { font-size: 5rem; min-height: 140px; padding: 1rem; }
}
