/* =========================================================
   Operation Scarecrow — 3D anatomical brain
   Loaded only by the section hub.

   Geometry, colours, region names and reading lists all come from
   operation-scarecrow/data/scarecrow-map.json. Nothing anatomical or
   editorial is hardcoded here.

   NOTE: .sc-brain-credit is a license condition, not decoration.
   See assets/LICENSE-brain.md before removing it.
   ========================================================= */

.sc-brain { position: relative; margin-top: 2.25rem; }

.sc-brain--bleed {
  width: min(94vw, 1180px);
  margin-left: 50%;
  transform: translateX(-50%);
}

/* ---------- Toolbar ---------- */
.sc-brain-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0 0 0.7rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.9rem;
}

.sc-brain-picker {
  appearance: none;
  background: var(--bg2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 0.45rem 2rem 0.45rem 0.7rem;
  cursor: pointer;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-dim) 50%),
    linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);
  background-position: calc(100% - 15px) 52%, calc(100% - 10px) 52%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  max-width: 15rem;
}
.sc-brain-picker:hover { border-color: var(--text-muted); }
.sc-brain-picker:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.sc-brain-tools { display: flex; gap: 0.3rem; margin-left: auto; flex-wrap: wrap; }

.sc-brain-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.42rem 0.6rem;
  cursor: pointer;
  transition: color 0.16s, border-color 0.16s, background 0.16s;
  display: inline-flex;
  align-items: center;
  gap: 0.34rem;
  white-space: nowrap;
}
.sc-brain-btn:hover { color: var(--text); border-color: var(--text-muted); }
.sc-brain-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sc-brain-btn[aria-pressed="true"] {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-glow);
}
.sc-brain-btn svg { width: 11px; height: 11px; stroke: currentColor; fill: none; stroke-width: 1.6; }

/* ---------- Stage ---------- */
.sc-brain-stage {
  position: relative;
  aspect-ratio: 16 / 9;
  min-height: 340px;
  max-height: 620px;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 55% 60% at 30% 28%, rgba(168, 85, 247, 0.07), transparent 72%),
    radial-gradient(ellipse 50% 55% at 74% 70%, rgba(45, 212, 191, 0.055), transparent 72%),
    var(--bg2);
  touch-action: none;
}
html[data-theme="light"] .sc-brain-stage {
  background:
    radial-gradient(ellipse 55% 60% at 30% 28%, rgba(147, 51, 234, 0.05), transparent 72%),
    radial-gradient(ellipse 50% 55% at 74% 70%, rgba(13, 148, 136, 0.045), transparent 72%),
    var(--bg2);
}
.sc-brain-stage canvas { display: block; width: 100%; height: 100%; }
.sc-brain-stage:fullscreen { max-height: none; aspect-ratio: auto; border-radius: 0; }

/* ---------- Intro overlay ---------- */
.sc-brain-intro {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
  pointer-events: none;
  transition: opacity 0.55s ease, visibility 0.55s;
}
.sc-brain-intro[data-faded="true"] { opacity: 0; visibility: hidden; }
.sc-brain-intro > * {
  background: rgba(14, 12, 13, 0.7);
  backdrop-filter: blur(3px);
  border-radius: 3px;
  padding: 0.3rem 0.7rem;
}
html[data-theme="light"] .sc-brain-intro > * { background: rgba(253, 248, 250, 0.78); }
.sc-brain-intro-title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.6rem;
}
.sc-brain-intro-text {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text);
  max-width: 34ch;
}
.sc-brain-intro-hint {
  margin-top: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

/* ---------- Loading ---------- */
.sc-brain-loading {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted);
  transition: opacity 0.4s;
}
.sc-brain-loading[hidden] { display: none; }

/* ---------- Floating region labels ---------- */
.sc-brain-labels { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.sc-brain-label {
  position: absolute;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  white-space: nowrap;
  padding: 0.2rem 0.45rem;
  border-radius: 2px;
  background: rgba(14, 12, 13, 0.72);
  border: 1px solid var(--border);
  opacity: 0;
  transition: opacity 0.25s;
}
html[data-theme="light"] .sc-brain-label { background: rgba(255, 255, 255, 0.82); }
.sc-brain-label[data-on="true"] { opacity: 1; }

/* ---------- Preview card ---------- */
.sc-brain-card {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: min(19rem, calc(100% - 1.7rem));
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 2px solid var(--tier, var(--accent));
  border-radius: 3px;
  padding: 0.95rem 1rem 1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.24s, transform 0.24s, visibility 0.24s;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.34);
  max-height: calc(100% - 1.7rem);
  overflow-y: auto;
}
.sc-brain-card[data-open="true"] { opacity: 1; visibility: visible; transform: none; }

.sc-brain-card-close {
  position: absolute; top: 0.5rem; right: 0.6rem;
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 1rem; line-height: 1;
  padding: 0.15rem 0.25rem;
}
.sc-brain-card-close:hover { color: var(--text); }

.sc-brain-card-region {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--tier, var(--accent));
  margin-bottom: 0.15rem;
  padding-right: 1rem;
}
.sc-brain-card-anat {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0.7rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border);
}
.sc-brain-card-list { list-style: none; margin: 0; padding: 0; }
.sc-brain-card-item + .sc-brain-card-item {
  margin-top: 0.7rem; padding-top: 0.7rem; border-top: 1px solid var(--border);
}
.sc-brain-card-title {
  font-family: var(--font-serif);
  font-size: 0.98rem;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 0.3rem;
}
.sc-brain-card-blurb {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--text-dim);
  margin-bottom: 0.55rem;
}
.sc-brain-card-meta { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.sc-brain-card-maturity {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 0.15rem 0.38rem;
}
.sc-brain-card-link {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.sc-brain-card-link:hover { border-bottom-color: var(--accent); }

/* ---------- Credit (license condition — do not remove) ---------- */
.sc-brain-credit {
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  line-height: 1.6;
  color: var(--text-muted);
}
.sc-brain-credit a { color: var(--text-dim); text-decoration: none; border-bottom: 1px solid var(--border); }
.sc-brain-credit a:hover { color: var(--text); }

/* ---------- Fallback ---------- */
.sc-brain-fallback p { color: var(--text-dim); font-size: 0.9rem; margin-bottom: 0.75rem; }
.sc-brain-fallback ul { list-style: none; }
.sc-brain-fallback li { margin-bottom: 0.4rem; }
.sc-brain-fallback a { color: var(--accent); text-decoration: none; font-size: 0.9rem; }
.sc-brain-fallback a:hover { text-decoration: underline; }

@media (max-width: 620px) {
  .sc-brain-stage { aspect-ratio: 4 / 3; }
  .sc-brain-card { left: 0.85rem; right: 0.85rem; width: auto; }
  .sc-brain-tools { margin-left: 0; width: 100%; }
}