/* ============================================================
   ColorCube — Colour Vision page styles
   ============================================================ */

.cvd-section { margin-bottom: 3rem; }

/* ── Simulator ───────────────────────────────────────────────── */
.cvd-sim-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  padding: 1.25rem;
  margin: 1.5rem 0;
}
.cvd-sim-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.cvd-type-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}
.cvd-type-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.4rem 0.75rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color var(--trans), background var(--trans), color var(--trans);
}
.cvd-type-btn:hover { border-color: var(--text-muted); }
.cvd-type-btn.active {
  border-color: var(--accent-b);
  background: var(--surface);
  color: var(--white);
}

.cvd-severity-row {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 1.25rem;
}
.cvd-severity-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}
.cvd-severity-label span:last-child { color: var(--white); font-weight: 500; }

/* Hue-strip demo */
.cvd-strip-pair { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.25rem; }
.cvd-strip-item { display: flex; flex-direction: column; gap: 0.3rem; }
.cvd-strip-caption {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}
canvas.cvd-strip-canvas {
  width: 100%;
  height: 36px;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* Image upload + side-by-side compare */
.cvd-dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-l);
  padding: 1.5rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--trans), background var(--trans);
  background: var(--surface2);
  position: relative;
  margin-bottom: 1rem;
}
.cvd-dropzone.over { border-color: var(--accent-b); background: var(--surface); }
.cvd-dropzone input[type=file] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.cvd-dropzone-label { font-size: 0.85rem; color: var(--text); }
.cvd-dropzone-hint  { font-size: 0.72rem; color: var(--text-muted); margin-top: 0.2rem; }

.cvd-image-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 560px) { .cvd-image-pair { grid-template-columns: 1fr; } }
.cvd-image-item { display: flex; flex-direction: column; gap: 0.4rem; }
canvas.cvd-image-canvas {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface2);
}

/* ── Contrast checker ────────────────────────────────────────── */
.cvd-contrast-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  padding: 1.25rem;
  margin: 1.5rem 0;
}
.cvd-contrast-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}
@media (max-width: 600px) { .cvd-contrast-layout { grid-template-columns: 1fr; } }

.cvd-color-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}
.cvd-color-row label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  width: 6.5rem;
  flex-shrink: 0;
}
.cvd-color-row input[type=color] {
  width: 2.2rem;
  height: 2.2rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: none;
  cursor: pointer;
}
.cvd-color-row input[type=text] {
  flex: 1;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.4rem 0.6rem;
  color: var(--white);
}

.cvd-sample-box {
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  font-size: 1.1rem;
  text-align: center;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  transition: background var(--trans), color var(--trans);
}

.cvd-ratio-readout {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 0.75rem;
}
.cvd-ratio-readout span {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 0.4rem;
}

.cvd-badges { display: flex; flex-direction: column; gap: 0.4rem; }
.cvd-badge {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius);
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.cvd-badge-result { font-weight: 600; }
.cvd-badge.pass .cvd-badge-result { color: var(--accent-g); }
.cvd-badge.fail .cvd-badge-result { color: var(--accent-r); }

/* ── Guidance list ───────────────────────────────────────────── */
.cvd-tips { margin: 0.75rem 0 0 1.25rem; display: flex; flex-direction: column; gap: 0.5rem; }