/* ANATOMY EXPLORER — engineering-manual meets interactive 3D. Hand-written, brand palette only. */
.an-page, main.page.an-page { max-width: none; padding: 0; margin: 0; }
:root { --an-top: 64px; }
.an-app { display: grid; grid-template-columns: 1fr; min-height: calc(100vh - var(--an-top)); position: relative; }
.an-stagewrap { position: relative; display: flex; flex-direction: column; min-width: 0; }
.an-topbar { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; justify-content: space-between; padding: 10px 16px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 92%, white); }
.an-toolbar { display: flex; gap: 6px; flex-wrap: wrap; }
.an-toolbar .btn[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }

/* breadcrumb — "You are here" */
.an-crumbs { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; min-width: 0; font-size: var(--fs-sm); }
.an-here { font-family: var(--font-display); font-style: italic; color: var(--muted); }
.an-trail { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 2px 4px; align-items: center; }
.an-trail li { display: flex; align-items: center; gap: 4px; }
.an-trail li + li::before { content: "→"; color: var(--gold); font-size: 0.9em; }
.an-crumb { background: none; border: 0; padding: 4px 6px; font: inherit; color: var(--teal); cursor: pointer; border-radius: var(--radius-sm); min-height: 32px; }
.an-crumb:hover { background: var(--teal-soft); }
.an-trail [aria-current] { font-weight: 600; padding: 4px 6px; color: var(--ink); letter-spacing: 0.01em; }

/* stage */
.an-stage { position: relative; min-height: 62vh; height: 62vh; overflow: hidden; background: radial-gradient(ellipse at 50% 40%, #fffdf9 0%, #f3eee5 58%, #e9e2d6 100%); border-bottom: 1px solid var(--line); touch-action: none; }
.an-stage canvas.an-canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; display: block; cursor: grab; outline: none; }
.an-stage canvas.an-canvas:active { cursor: grabbing; }
.an-stage[data-mode="2d"] { height: auto; min-height: 0; padding: 16px; touch-action: auto; }
.an-stage[data-mode="2d"] .vehicle-morph { max-width: 720px; margin: 0 auto; }
.an-2d-note { text-align: center; margin: 8px 0 0; }
.an-help { margin: 8px 16px 0; }
.an-leaders { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.an-leader { fill: none; stroke: var(--ink); stroke-width: 1; opacity: 0.55; stroke-linejoin: round; transition: opacity 180ms ease; }
.an-leader-dot { fill: var(--bg); stroke: var(--ink); stroke-width: 1.5; transition: opacity 180ms ease; }
.an-leader[data-state="faded"], .an-leader-dot[data-state="faded"] { opacity: 0.12; }
.an-leader[data-state="selected"], .an-leader-dot[data-state="selected"] { stroke: var(--teal); stroke-width: 1.6; opacity: 1; }
.an-leader[data-state="related"], .an-leader-dot[data-state="related"] { stroke: var(--gold-text); opacity: 0.8; }
.an-leader[data-state="danger"], .an-leader-dot[data-state="danger"] { stroke: var(--red); opacity: 0.95; }
.an-leader[data-state="lit"], .an-leader-dot[data-state="lit"] { stroke: var(--amber-text); opacity: 0.9; }
.an-labels { position: absolute; inset: 0; pointer-events: none; }
.an-label { position: absolute; left: 0; top: 0; pointer-events: auto; display: block; text-align: center; padding: 5px 8px; min-height: 30px; background: color-mix(in srgb, var(--bg) 88%, white); border: 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); font: 600 11px/1.2 var(--font-body); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); cursor: pointer; transition: opacity 180ms ease, transform 160ms ease-out, border-color 180ms ease; will-change: transform; border-radius: 0; }
.an-label:hover, .an-label.is-hover { border-color: var(--gold-text); color: var(--gold-text); }
.an-label[data-state="faded"] { opacity: 0.22; }
.an-label[data-state="selected"] { border-color: var(--teal); color: var(--teal); background: var(--teal-soft); }
.an-label[data-state="related"] { border-color: var(--gold-text); color: var(--gold-text); }
.an-label[data-state="danger"] { border-color: var(--red); color: var(--red); background: var(--red-soft); }
.an-label[data-state="lit"] { border-color: var(--amber-text); color: var(--amber-text); background: var(--amber-soft, #f7efe0); }
.an-label[data-kind="system"] { font-size: 12px; min-height: 34px; padding: 7px 10px; }
.an-label-text { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (prefers-reduced-motion: reduce) { .an-label, .an-leader, .an-leader-dot { transition: none; } }

/* panel */
.an-panel { background: var(--card); border-top: 1px solid var(--line); position: relative; display: flex; flex-direction: column; min-width: 0; }
.an-panel-body { padding: 16px; display: grid; gap: 14px; align-content: start; }
.an-panel h2 { margin: 0 0 4px; font-size: clamp(1.4rem, 2.6vw, 1.9rem); letter-spacing: -0.01em; }
.an-panel h3 { margin: 0 0 6px; font-size: var(--fs-base); font-family: var(--font-body); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.72rem; color: var(--muted); }
.an-sec { padding-top: 12px; border-top: 1px solid var(--line); }
.an-sec p { margin: 0 0 6px; }
.an-sec ul { margin: 0; padding-left: 1.1em; }
.an-sec li { margin: 2px 0; }
.an-sheet-handle { display: none; }
.an-vehicle-head p, .an-sys-head p, .an-comp-head p { margin: 0 0 6px; }
.an-vehicle-head .btn { margin-top: 6px; }

/* status chips (vehicle-specific truth) */
.an-status { display: inline-flex; align-items: center; gap: 6px; font-size: 0.68rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; padding: 3px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); background: var(--bg); white-space: nowrap; }
.an-status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.an-status-confirmed { color: var(--green); border-color: color-mix(in srgb, var(--green) 40%, var(--line)); background: var(--green-soft); }
.an-status-unknown { color: var(--amber-text); border-color: color-mix(in srgb, var(--amber-text) 40%, var(--line)); background: var(--gold-soft); }
.an-status-absent { color: var(--red); background: var(--red-soft); }

/* system list */
.an-sys-list, .an-comp-list, .an-learn-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.an-sys, .an-learn { width: 100%; text-align: left; display: flex; gap: 12px; align-items: center; padding: 11px 12px; min-height: var(--tap); border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); cursor: pointer; font: inherit; color: inherit; transition: border-color 160ms ease, background 160ms ease, transform 160ms ease; }
.an-sys:hover, .an-learn:hover { border-color: var(--teal); background: var(--teal-soft); }
.an-sys:active { transform: translateY(1px); }
.an-sys-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--teal); flex: none; box-shadow: 0 0 0 3px var(--teal-soft); }
.an-sys-text, .an-learn .t { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.an-sys .t, .an-learn .t { font-weight: 600; font-size: var(--fs-sm); }
.an-sys .d, .an-learn .d { color: var(--muted); font-size: var(--fs-xs); display: block; }
.an-count { font-size: 0.68rem; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; white-space: nowrap; }
.an-learn { flex-wrap: wrap; } .an-learn .t { flex-basis: 100%; } .an-learn .d { flex: 1; }

/* component list */
.an-subsys { padding-top: 8px; }
.an-subsys h3 { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; text-transform: none; letter-spacing: 0; font-size: var(--fs-sm); color: var(--ink); }
.an-subsys-btn { background: none; border: 0; padding: 4px 0; font: inherit; font-weight: 600; color: var(--teal); cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.an-comp { width: 100%; display: flex; justify-content: space-between; gap: 10px; align-items: center; text-align: left; padding: 9px 12px; min-height: var(--tap); border: 1px solid var(--line); border-left: 3px solid var(--line); border-radius: var(--radius-sm); background: var(--card); cursor: pointer; font: inherit; color: inherit; transition: border-color 160ms ease, background 160ms ease; }
.an-comp:hover, .an-comp:focus-visible { border-left-color: var(--gold); background: var(--gold-soft); }
.an-comp[aria-pressed="true"] { border-left-color: var(--teal); background: var(--teal-soft); }
.an-comp .t { font-weight: 600; font-size: var(--fs-sm); }

/* component detail */
.an-comp-head .row { gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 6px; }
.an-rels { display: flex; flex-wrap: wrap; gap: 6px; }
.an-rel { border: 1px solid var(--gold); color: var(--gold-text); background: var(--gold-soft); border-radius: 999px; padding: 6px 12px; font: inherit; font-size: var(--fs-xs); font-weight: 600; cursor: pointer; min-height: 32px; }
.an-rel:hover { background: var(--gold); color: #fff; }
.an-rel.danger { border-color: var(--red); color: var(--red); background: var(--red-soft); }
.an-rel.danger:hover { background: var(--red); color: #fff; }
.an-cost-grid { list-style: none; margin: 0 0 10px; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.an-cost-grid li { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px 10px; font-size: var(--fs-sm); display: flex; flex-direction: column; gap: 2px; }
.an-cost-grid b { font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.an-learnbar { border-left: 3px solid var(--teal); background: var(--teal-soft); padding: 12px 14px; border-radius: 0 var(--radius) var(--radius) 0; }
.an-learnbar .eyebrow { margin: 0 0 4px; }
.an-idea { font-family: var(--font-display); font-size: 1.1rem; line-height: 1.4; margin: 0 0 10px; }
.an-dtc { border-left: 3px solid var(--red); }
.an-tools { display: grid; gap: 8px; padding-top: 8px; border-top: 1px solid var(--line); }
.an-detail { border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; background: var(--bg); }
.an-detail summary { cursor: pointer; font-weight: 600; min-height: 28px; display: flex; align-items: center; }
.an-detail[open] summary { margin-bottom: 8px; }
.an-code-form input { flex: 1; min-width: 0; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); font: inherit; letter-spacing: 0.08em; text-transform: uppercase; }
.an-code-form .row { gap: 8px; align-items: stretch; margin: 6px 0; }

/* desktop: stage left, panel right, both filling the viewport */
@media (min-width: 900px) {
  .an-app { grid-template-columns: minmax(0, 1fr) 420px; height: calc(100vh - var(--an-top)); min-height: 560px; }
  .an-stagewrap { height: 100%; }
  .an-stage { flex: 1; height: auto; min-height: 0; border-bottom: 0; }
  .an-stage[data-mode="2d"] { flex: 1; display: grid; place-items: center; }
  .an-help { position: absolute; left: 16px; bottom: 10px; margin: 0; max-width: 60%; pointer-events: none; }
  .an-panel { border-top: 0; border-left: 1px solid var(--line); height: 100%; overflow-y: auto; overscroll-behavior: contain; }
  .an-panel-body { padding: 20px 22px 32px; }
  .an-panel[data-snap] { transform: none !important; }
}
@media (min-width: 1280px) { .an-app { grid-template-columns: minmax(0, 1fr) 460px; } }

/* phone: a bottom sheet over the stage — tap a part, the sheet rises, the model stays visible behind it */
@media (max-width: 899px) {
  .an-app { min-height: 0; }
  .an-stage { height: calc(100vh - var(--an-top) - 120px); min-height: 360px; max-height: 70vh; }
  .an-help { display: none; }
  .an-panel { position: fixed; left: 0; right: 0; bottom: calc(var(--bottombar-h) + env(safe-area-inset-bottom)); z-index: 55; height: 80vh; max-height: calc(100vh - 72px - var(--bottombar-h)); border-radius: 18px 18px 0 0; box-shadow: 0 -12px 40px rgba(29,39,51,0.18); border: 1px solid var(--line); transform: translateY(calc(100% - 72px + var(--drag, 0px))); transition: transform 320ms cubic-bezier(.2,.8,.2,1); }
  .an-panel[data-snap="half"] { transform: translateY(calc(58% + var(--drag, 0px))); }
  .an-panel[data-snap="full"] { transform: translateY(var(--drag, 0px)); }
  .an-panel.is-dragging { transition: none; }
  .an-sheet-handle { display: flex; justify-content: center; align-items: center; width: 100%; min-height: 36px; background: none; border: 0; cursor: grab; touch-action: none; padding: 10px 0 4px; }
  .an-sheet-handle span { width: 44px; height: 5px; border-radius: 999px; background: var(--line); display: block; }
  .an-sheet-handle:focus-visible span { background: var(--teal); }
  .an-panel-body { overflow-y: auto; flex: 1; padding: 6px 16px 96px; overscroll-behavior: contain; }
  .an-panel[data-snap="peek"] .an-panel-body { overflow: hidden; }
  .an-panel[data-snap="peek"]::after { content: "Tap a part, or pull up for details"; position: absolute; top: 40px; left: 0; right: 0; text-align: center; font-size: var(--fs-xs); color: var(--muted); pointer-events: none; }
  .an-panel[data-snap="peek"] .an-panel-body { visibility: hidden; }
  .an-topbar { padding: 8px 12px; }
  .an-toolbar .btn { padding-inline: 10px; }
  .an-toolbar [data-act="camera"] { display: none; }
  .an-label { font-size: 10px; letter-spacing: 0.08em; padding: 4px 6px; min-height: 26px; }
  .an-label[data-kind="system"] { font-size: 11px; min-height: 30px; padding: 6px 8px; }
  @media (prefers-reduced-motion: reduce) { .an-panel { transition: none; } }
}
@media print { .an-stage, .an-toolbar, .an-sheet-handle { display: none !important; } .an-app { display: block; } .an-panel { position: static; transform: none !important; height: auto; box-shadow: none; } }