/* Skills Lab — station layer (rail, cards, checklist, pins, loading veil, debrief).
 * Shared source: shared/skills-lab/station.css. Product copies are written by
 * shared/skills-lab/sync-copies.sh; edit the shared file, then sync.
 * Relies on brand tokens (--card, --line, --heading, --muted, --teal, --accent …). */

/* =====================================================================
 * Skills Lab redesign v2 — hub (hero, track tiles, shelves, module cards)
 * Track hues are accents only (icons, rules, glows); text stays on tokens.
 * ===================================================================== */
.sl-hue-rn-core { --hue: #0e7c86; }
.sl-hue-rn-icu  { --hue: #c0392b; }
.sl-hue-arrt    { --hue: #2f6fb5; }
.sl-hue-app     { --hue: #6b4fb3; }
.sl-hue-ob      { --hue: #b8457a; }
.sl-hue-peds    { --hue: #b9801a; }
.sl-hue-psych   { --hue: #2f8a5f; }
.sl-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.sl-hero {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 1.6rem; align-items: center;
  margin: 0.6rem 0 1.2rem; padding: 1.6rem 1.8rem; border-radius: 22px;
  background:
    radial-gradient(900px 300px at 0% 0%, color-mix(in srgb, var(--teal) 16%, transparent), transparent 60%),
    linear-gradient(135deg, var(--card, #fff), var(--surface-2, var(--card, #fff)));
  border: 1px solid var(--line); box-shadow: var(--elev-2, 0 8px 28px rgba(18, 48, 63, 0.10));
}
.sl-eyebrow {
  margin: 0 0 0.3rem; font-size: 0.74rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--sl-eyebrow, var(--teal));
}
.sl-hero h1 { margin: 0 0 0.5rem; font-size: clamp(1.9rem, 3.4vw, 2.7rem); line-height: 1.08; letter-spacing: -0.02em; }
.sl-lead { margin: 0 0 0.9rem; color: var(--muted); max-width: 40rem; font-size: 1.02rem; }
.sl-hero-stats { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 0.8rem; }
.sl-hero-stats span {
  padding: 0.3rem 0.75rem; border-radius: 999px; font-size: 0.85rem; color: var(--muted);
  background: var(--surface-2, var(--bg)); border: 1px solid var(--line);
}
.sl-hero-stats b { color: var(--heading); font-weight: 800; font-variant-numeric: tabular-nums; }
.sl-hero .sl-disclaimer { margin: 0; font-size: 0.84rem; }
.sl-hero-art { width: 100%; height: auto; display: block; border-radius: 22px; box-shadow: 0 14px 34px rgba(7, 26, 35, 0.28); }
.sl-hero-art text { font: 700 11px/1 var(--font, system-ui, sans-serif); fill: #eef4f2; }
.sl-pin-ring { fill: none; stroke: #f0a441; stroke-width: 2; transform-box: fill-box; transform-origin: center; animation: sl-ping 2.4s ease-out infinite; }
.sl-pin-d2 { animation-delay: 0.6s; }
.sl-pin-d3 { animation-delay: 1.2s; }
@keyframes sl-ping { 0% { transform: scale(0.6); opacity: 0.95; } 80%, 100% { transform: scale(1.9); opacity: 0; } }

.sl-hub-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 0.8rem; margin: 0 0 0.9rem; }
.sl-search {
  position: relative; flex: 1 1 18rem; max-width: 32rem; display: flex; align-items: center; gap: 0.55rem;
  min-height: 44px; padding: 0 0.9rem; border-radius: 999px; background: var(--card, #fff);
  border: 1.5px solid var(--line); color: var(--muted);
}
.sl-search:focus-within { border-color: var(--teal); box-shadow: 0 0 0 4px color-mix(in srgb, var(--teal) 18%, transparent); }
.sl-hub-bar label.sl-search { flex-direction: row; flex-wrap: nowrap; margin: 0; gap: 0.55rem; font-size: 0.95rem; }
.sl-search svg { flex: 0 0 auto; }
.sl-search input[type="search"] {
  flex: 1 1 auto; width: auto; min-width: 0; margin: 0; padding: 0; border: 0; outline: 0; box-shadow: none; border-radius: 0;
  background: transparent; color: var(--heading); font: inherit; min-height: 40px; text-align: left;
}
.sl-search input[type="search"]::placeholder { color: var(--muted); opacity: 1; }
.sl-hub-count { margin: 0; font-size: 0.86rem; color: var(--muted); }

.sl-tracks { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.8rem; margin: 0 0 0.8rem; }
.sl-track {
  position: relative; display: flex; flex-direction: column; align-items: flex-start; gap: 0.15rem; text-align: left; cursor: pointer;
  padding: 1rem 1rem 0.95rem; border-radius: 18px; border: 1px solid var(--line); font: inherit; color: var(--heading);
  background:
    radial-gradient(220px 120px at 100% 0%, color-mix(in srgb, var(--hue) 20%, transparent), transparent 70%),
    var(--card, #fff);
  box-shadow: var(--elev-1, 0 2px 8px rgba(18, 48, 63, 0.08));
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease; min-height: 44px;
}
.sl-track::before { content: ""; position: absolute; left: 1rem; right: 1rem; top: 0; height: 3px; border-radius: 0 0 4px 4px; background: var(--hue); }
.sl-track:hover { transform: translateY(-2px); border-color: var(--hue); box-shadow: 0 10px 26px color-mix(in srgb, var(--hue) 22%, transparent); }
.sl-track:focus-visible, .sl-chip-jump:focus-visible, .sl-mod:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }
.sl-track-ico {
  width: 2.5rem; height: 2.5rem; border-radius: 12px; display: grid; place-items: center; margin-bottom: 0.45rem;
  color: var(--hue); background: color-mix(in srgb, var(--hue) 13%, var(--card, #fff));
}
.sl-track-tag { font-size: 0.68rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.sl-track-name { font-size: 1.08rem; font-weight: 800; letter-spacing: -0.01em; line-height: 1.2; }
.sl-track-n { font-size: 0.84rem; color: var(--muted); }
.sl-track-n b { color: var(--heading); font-size: 1.05rem; font-variant-numeric: tabular-nums; }

.sl-chips { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin: 0 0 1.3rem; }
.sl-chips-label { font-size: 0.74rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-right: 0.2rem; }
.sl-chip-jump {
  display: inline-flex; align-items: center; gap: 0.45rem; min-height: 40px; padding: 0.3rem 0.85rem; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: var(--card, #fff); color: var(--heading); font: inherit; font-weight: 700; font-size: 0.88rem;
  transition: border-color 120ms ease, background 120ms ease;
}
.sl-chip-jump .sl-ico { width: 16px; height: 16px; color: var(--hue); }
.sl-chip-jump:hover { border-color: var(--hue); background: color-mix(in srgb, var(--hue) 8%, var(--card, #fff)); }
.sl-chip-jump b { color: var(--muted); font-variant-numeric: tabular-nums; }

.sl-shelves { display: grid; gap: 0.4rem; }
.sl-shelf { --hue: var(--teal); margin: 0 0 1.5rem; scroll-margin-top: 5.5rem; border-radius: 18px; transition: box-shadow 300ms ease; }
.sl-shelf[data-shelf="rn-core"] { --hue: #0e7c86; }
.sl-shelf[data-shelf="rn-icu"] { --hue: #c0392b; }
.sl-shelf[data-shelf="arrt"] { --hue: #2f6fb5; }
.sl-shelf[data-shelf="app"] { --hue: #6b4fb3; }
.sl-shelf[data-shelf="ob"] { --hue: #b8457a; }
.sl-shelf[data-shelf="peds"] { --hue: #b9801a; }
.sl-shelf[data-shelf="psych"] { --hue: #2f8a5f; }
.sl-shelf[hidden] { display: none; }
.sl-shelf.is-flash { box-shadow: 0 0 0 4px color-mix(in srgb, var(--hue) 28%, transparent); }
.sl-shelf > p { color: var(--muted); max-width: 56rem; margin: 0.2rem 0 0.9rem; font-size: 0.93rem; }
.sl-shelf-head { display: flex; align-items: center; gap: 0.7rem; padding-bottom: 0.55rem; border-bottom: 2px solid color-mix(in srgb, var(--hue) 30%, var(--line)); }
.sl-shelf-head .sl-shelf-title { margin: 0; font-size: 1.3rem; letter-spacing: -0.01em; flex: 1 1 auto; }
.sl-shelf-ico { width: 2.2rem; height: 2.2rem; border-radius: 11px; display: grid; place-items: center; color: var(--hue); background: color-mix(in srgb, var(--hue) 13%, var(--card, #fff)); }
.sl-shelf-count { font-size: 0.8rem; font-weight: 700; color: var(--muted); padding: 0.2rem 0.6rem; border-radius: 999px; background: var(--surface-2, var(--bg)); border: 1px solid var(--line); }

.sl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: 0.85rem; }
a.sl-mod, .sl-grid > .sl-door-stub {
  position: relative; display: flex; flex-direction: column; gap: 0.35rem; padding: 1rem 1.05rem 0.9rem 1.2rem; min-height: 44px;
  border-radius: 16px; border: 1px solid var(--line); background: var(--card, #fff); color: var(--ink, inherit); text-decoration: none; overflow: hidden;
  box-shadow: var(--elev-1, 0 2px 8px rgba(18, 48, 63, 0.07));
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
}
a.sl-mod::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; background: var(--hue); opacity: 0.85; }
a.sl-mod[hidden] { display: none; }
a.sl-mod h3 { margin: 0; font-size: 1.02rem; line-height: 1.25; color: var(--heading); letter-spacing: -0.005em; }
a.sl-mod p { margin: 0; font-size: 0.87rem; line-height: 1.45; color: var(--muted); }
a.sl-mod:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--hue) 55%, var(--line)); box-shadow: 0 12px 28px color-mix(in srgb, var(--hue) 18%, transparent); text-decoration: none; }
a.sl-mod.sl-door-stub { opacity: 0.8; }
.sl-mod-top { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; flex-wrap: wrap; }
.sl-mod-state { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.68rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.sl-mod-state.is-live { color: var(--hue); }
.sl-mod-state.is-live::before { content: ""; width: 7px; height: 7px; border-radius: 999px; background: currentColor; box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 22%, transparent); }
.sl-mod-meta { font-size: 0.74rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.sl-mod-go { margin-top: auto; padding-top: 0.5rem; font-size: 0.84rem; font-weight: 800; color: var(--hue); opacity: 0; transform: translateX(-4px); transition: opacity 140ms ease, transform 140ms ease; }
a.sl-mod:hover .sl-mod-go, a.sl-mod:focus-visible .sl-mod-go { opacity: 1; transform: none; }
@media (hover: none) { .sl-mod-go { opacity: 1; transform: none; } }
.sl-foundations { margin-top: 0.6rem; padding: 1rem 1.2rem; border-radius: 16px; background: var(--surface-2, var(--bg)); border: 1px dashed var(--line); }
.sl-foundations .sl-shelf-title { font-size: 1.05rem; margin: 0 0 0.2rem; }
.sl-foundations p { margin: 0; color: var(--muted); }

@media (max-width: 1000px) { .sl-tracks { grid-template-columns: repeat(2, minmax(0, 1fr)); } .sl-hero { grid-template-columns: 1fr; } .sl-hero-art { max-width: 460px; } }
@media (max-width: 520px) { .sl-hero { padding: 1.1rem; border-radius: 18px; } .sl-tracks { gap: 0.55rem; } .sl-track { padding: 0.85rem 0.8rem; } .sl-grid { grid-template-columns: 1fr; } }

html.theme-dark .skills-lab, html.theme-dark .sl-hero, html.theme-dark .sl-station-head, html.theme-dark .sl-rail, html.theme-dark .sl-card,
:root[data-theme="dark"] .skills-lab, :root[data-theme="dark"] .sl-hero, :root[data-theme="dark"] .sl-station-head,
:root[data-theme="dark"] .sl-rail, :root[data-theme="dark"] .sl-card { --sl-eyebrow: #5fd0d8; --accent-ink: #f3c06f; }

/* =====================================================================
 * Skills Lab redesign v2 — station chrome polish
 * ===================================================================== */
.sl-station-head {
  margin: 0.2rem 0 0.4rem; padding: 1.1rem 1.3rem; border-radius: 20px; position: relative; overflow: hidden;
  background:
    radial-gradient(700px 220px at 100% 0%, color-mix(in srgb, var(--teal) 14%, transparent), transparent 65%),
    linear-gradient(135deg, var(--card, #fff), var(--surface-2, var(--card, #fff)));
  border: 1px solid var(--line); box-shadow: var(--elev-1, 0 2px 10px rgba(18, 48, 63, 0.08));
}
.sl-station-head .sl-kicker { color: var(--sl-eyebrow, var(--teal)); font-weight: 800; letter-spacing: 0.1em; margin: 0 0 0.25rem; }
.sl-station-head h1 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
.sl-station-head .fa-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 0.5rem; margin: 0.3rem 0; font-size: 0.8rem; color: var(--muted); }
.sl-station-head .fa-meta code { font-size: 0.74rem; }
.sl-station-head .sl-disclaimer { margin: 0.4rem 0 0; font-size: 0.82rem; color: var(--muted); }

.sl-rail {
  border: 1px solid var(--line); border-radius: 16px; background: var(--card, #fff); padding: 0.4rem 0.5rem;
  box-shadow: var(--elev-1, 0 2px 8px rgba(18, 48, 63, 0.06)); margin: 0.7rem 0 0.9rem;
}
.sl-rail-step.is-current { background: color-mix(in srgb, var(--accent) 12%, transparent); border-radius: 12px; }
.sl-rail-step + .sl-rail-step::before { display: none; }
.sl-rail-dot { width: 1.8rem; height: 1.8rem; }

.sl-patient-well {
  border-radius: 20px; border: 1px solid var(--line); overflow: hidden;
  box-shadow: 0 16px 40px rgba(18, 48, 63, 0.16);
}
.sl-patient-well:has(.sl-3d-stage) { background: #6d8296; border-radius: 20px; overflow: hidden; }
.sl-3d-stage .sl-3d-canvas-wrap { border-radius: 0; }
.sl-3d-tools { top: 0.8rem; right: 0.8rem; padding: 0.3rem; background: rgba(10, 22, 30, 0.7); border: 1px solid rgba(255, 255, 255, 0.14); }
.sl-3d-tool { min-height: 34px; padding: 0.3rem 0.85rem; }
.sl-3d-tool:hover { background: rgba(255, 255, 255, 0.18); }

.sl-card {
  border-radius: 18px; padding: 0.95rem 1.05rem 1rem;
  box-shadow: var(--elev-1, 0 2px 10px rgba(18, 48, 63, 0.07));
}
.sl-card-head { font-weight: 800; letter-spacing: -0.005em; }
.sl-card-coach { border-top: 4px solid var(--accent); }
.sl-card-steps { border-top: 4px solid var(--teal); }
.sl-card-sites { border-top: 4px solid #2f6fb5; }
.sl-card-tray { border-top: 4px solid var(--line); }
.sl-card .btn, .skills-lab .sl-card .btn { border-radius: 12px; min-height: 44px; font-weight: 700; }
.sl-check-item { padding: 0.45rem 0.55rem; }
.sl-check-item.is-current { box-shadow: inset 3px 0 0 var(--accent); border-radius: 8px; }
.sl-site { min-height: 44px; }
.sl-supply, .sl-decoy, .sl-bin { border-radius: 12px; }

.sl-debrief { border-radius: 20px; padding: 1.3rem 1.4rem; border-top: 5px solid var(--line); }
.sl-debrief.is-won { border-top-color: var(--teal); background: linear-gradient(180deg, color-mix(in srgb, var(--teal) 7%, var(--card, #fff)), var(--card, #fff) 40%); }
.sl-score { border-radius: 16px; }
.sl-score-n { font-size: 2rem; }

@media (prefers-reduced-motion: reduce) {
  .sl-pin-ring { animation: none; opacity: 0.6; }
  .sl-track, a.sl-mod, .sl-mod-go, .sl-shelf { transition: none; }
  .sl-track:hover, a.sl-mod:hover { transform: none; }
}
@media print { .sl-hero-art, .sl-tracks, .sl-chips, .sl-hub-bar { display: none; } }

/* ---- station header ---- */
.sl-station-head .sl-blurb { color: var(--muted); max-width: 52rem; margin: 0.15rem 0 0.6rem; }
.sl-station-head h1 { margin-bottom: 0.15rem; letter-spacing: var(--tracking-tight, -0.01em); }

/* ---- progress rail ---- */
.sl-rail {
  list-style: none; margin: 0.9rem 0 1rem; padding: 0.35rem 0.25rem;
  display: flex; flex-wrap: wrap; gap: 0.35rem 0;
  counter-reset: sl-rail;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.sl-rail-step {
  display: flex; align-items: center; gap: 0.5rem;
  flex: 1 1 8rem; min-width: 7.5rem; padding: 0.35rem 0.6rem; position: relative;
  color: var(--muted); font-size: 0.86rem; font-weight: 600;
}
.sl-rail-step + .sl-rail-step::before {
  content: ""; position: absolute; left: -0.1rem; top: 50%; width: 0.2rem; height: 1px;
  background: var(--line);
}
.sl-rail-dot {
  width: 1.65rem; height: 1.65rem; border-radius: 999px; flex: 0 0 auto;
  display: inline-grid; place-items: center;
  border: 2px solid var(--line); background: var(--card); color: var(--muted);
  font-size: 0.78rem; font-weight: 800; font-variant-numeric: tabular-nums;
  transition: background var(--dur-base, 200ms) var(--ease-out, ease), border-color var(--dur-base, 200ms) var(--ease-out, ease);
}
.sl-rail-step.is-done { color: var(--heading); }
.sl-rail-step.is-done .sl-rail-dot { background: var(--teal); border-color: var(--teal); color: var(--on-teal, #fff); }
.sl-rail-step.is-current { color: var(--heading); }
.sl-rail-step.is-current .sl-rail-dot {
  border-color: var(--accent); color: var(--accent-ink, var(--heading));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent);
}
.sl-rail-label { display: flex; flex-direction: column; line-height: 1.15; }
.sl-rail-sub { font-weight: 500; font-size: 0.75rem; color: var(--muted); font-variant-numeric: tabular-nums; }

/* ---- side panel cards ---- */
.sl-side { display: grid; gap: 0.8rem; align-content: start; }
.sl-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius-lg, 14px); padding: 0.85rem 1rem 0.95rem;
  box-shadow: var(--elev-1, var(--shadow));
}
.sl-card-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 0.6rem;
  margin: 0 0 0.55rem; color: var(--heading);
}
.sl-card-phase, .sl-card-count {
  font-size: 0.74rem; font-weight: 700; letter-spacing: var(--tracking-caps, 0.06em); text-transform: uppercase;
  color: var(--muted); font-variant-numeric: tabular-nums;
}
.sl-card-phase { color: var(--accent-ink, var(--accent)); }
.sl-card-hint { margin: 0.5rem 0 0; font-size: 0.82rem; color: var(--muted); }
.sl-card-coach .sl-coach { margin: 0 0 0.6rem; border-radius: 0 10px 10px 0; }
.sl-coach-now {
  margin: 0 0 0.25rem; font-size: 0.74rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent-ink, var(--accent));
}
.sl-card .sl-actions { margin: 0.4rem 0 0; }
.sl-card .sl-decoy {
  padding: 0.45rem 0.75rem; border-radius: 10px;
  border: 1px dashed var(--line); background: transparent;
  color: var(--muted); font: inherit; font-size: 0.9rem; font-weight: 600; cursor: pointer;
}
.sl-card .sl-decoy:hover { color: var(--heading); border-color: var(--muted); }
.sl-side-foot { margin: 0.2rem 0 0; }
.sl-side-foot .btn { opacity: 0.85; }

/* ---- feedback ---- */
.sl-card .sl-feedback {
  margin: 0 0 0.6rem; padding: 0.6rem 0.8rem; border-radius: 10px;
  border: 1px solid var(--line); background: var(--surface-2, var(--bg));
  animation: sl-fade-in var(--dur-base, 220ms) var(--ease-out, ease);
}
.sl-card .sl-feedback[hidden] { display: none; }
.sl-card .sl-feedback p { margin: 0; }
.sl-card .sl-feedback.is-ok { border-color: color-mix(in srgb, var(--good) 45%, var(--line)); background: var(--good-bg); }
.sl-card .sl-feedback.is-miss { border-color: color-mix(in srgb, var(--bad) 45%, var(--line)); background: var(--bad-bg); }
.sl-card .sl-feedback .fa-why { margin-top: 0.4rem; font-size: 0.9rem; }
@keyframes sl-fade-in { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: none; } }

/* ---- critical-step checklist ---- */
.sl-checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.15rem; }
.sl-check-item {
  display: grid; grid-template-columns: 1.1rem 1fr auto; align-items: center; gap: 0.55rem;
  padding: 0.35rem 0.45rem; border-radius: 8px; font-size: 0.9rem; color: var(--muted); line-height: 1.3;
}
.sl-check-mark {
  width: 0.95rem; height: 0.95rem; border-radius: 999px; border: 2px solid var(--line); box-sizing: border-box;
  position: relative; background: transparent;
}
.sl-check-item.is-done { color: var(--heading); }
.sl-check-item.is-done .sl-check-mark, .sl-debrief-row.is-ok .sl-check-mark { background: var(--teal); border-color: var(--teal); }
.sl-check-item.is-done .sl-check-mark::after, .sl-debrief-row.is-ok .sl-check-mark::after {
  content: ""; position: absolute; left: 0.22rem; top: 0.05rem; width: 0.25rem; height: 0.5rem;
  border: solid var(--on-teal, #fff); border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.sl-check-item.is-current {
  color: var(--heading); font-weight: 700;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}
.sl-check-item.is-current .sl-check-mark { border-color: var(--accent); box-shadow: inset 0 0 0 2px var(--card); background: var(--accent); }
.sl-check-item.is-missed { color: var(--heading); }
.sl-check-item.is-missed .sl-check-mark, .sl-debrief-row.is-miss .sl-check-mark { border-color: var(--bad); background: var(--bad-bg); }
.sl-check-now {
  font-size: 0.68rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent-ink, var(--accent));
}

/* ---- sites for this skill ---- */
.sl-sites { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.sl-site {
  display: inline-flex; align-items: center; gap: 0.4rem; min-height: 40px;
  padding: 0.4rem 0.75rem; border-radius: 999px; cursor: pointer;
  border: 2px solid var(--line); background: var(--card); color: var(--heading); font-weight: 700; font-size: 0.88rem;
  transition: border-color var(--dur-fast, 120ms) ease, background var(--dur-fast, 120ms) ease, transform var(--dur-fast, 120ms) ease;
}
.sl-site:hover { border-color: var(--teal); transform: translateY(-1px); }
.sl-site.is-marked { border-style: dashed; }
.sl-site.is-selected { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, var(--card)); border-style: solid; }
.sl-site:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }
.sl-site-n {
  width: 1.3rem; height: 1.3rem; border-radius: 999px; display: inline-grid; place-items: center;
  background: var(--heading); color: var(--card); font-size: 0.72rem; font-weight: 800;
}

/* ---- supply tray ---- */
.sl-card-tray > summary { cursor: pointer; list-style: none; }
.sl-card-tray > summary::-webkit-details-marker { display: none; }
.sl-card-tray > summary::after {
  content: "▾"; font-size: 0.9rem; color: var(--muted); transition: transform var(--dur-fast, 120ms) ease;
}
.sl-card-tray:not([open]) > summary::after { transform: rotate(-90deg); }
.sl-card-tray:not([open]) > summary { margin-bottom: 0; }
.sl-meter-line { display: flex; align-items: center; gap: 0.6rem; margin: 0 0 0.6rem; font-size: 0.82rem; color: var(--muted); }
.sl-meter { flex: 1 1 auto; height: 6px; border-radius: 999px; background: var(--line); overflow: hidden; }
.sl-meter-fill { display: block; height: 100%; background: var(--teal); border-radius: 999px; transition: width var(--dur-base, 220ms) var(--ease-out, ease); }
.sl-meter-text { white-space: nowrap; font-variant-numeric: tabular-nums; }
.sl-supply { display: inline-flex; align-items: center; gap: 0.5rem; }
.sl-supply-mark {
  width: 0.9rem; height: 0.9rem; border-radius: 4px; border: 2px solid var(--line); box-sizing: border-box; flex: 0 0 auto; position: relative;
}
.sl-supply.on .sl-supply-mark { background: var(--teal); border-color: var(--teal); }
.sl-supply.on .sl-supply-mark::after {
  content: ""; position: absolute; left: 0.2rem; top: 0; width: 0.22rem; height: 0.45rem;
  border: solid var(--on-teal, #fff); border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.sl-supply.sl-distractor.on { border-color: var(--warn); background: var(--warn-bg); }
.sl-supply.sl-distractor.on .sl-supply-mark { background: var(--warn); border-color: var(--warn); }

/* ---- 3D stage: loading veil, pins, camera tools, hover caption ---- */
.sl-3d-stage .sl-3d-canvas-wrap { border-radius: var(--radius-lg, 14px) var(--radius-lg, 14px) 0 0; }
.sl-3d-veil {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: 0.6rem;
  background: linear-gradient(180deg, #5f7387, #6d8296); color: #eef4f2; font-weight: 700; font-size: 0.95rem;
  opacity: 1; transition: opacity 400ms ease; pointer-events: none; z-index: 3;
}
.sl-3d-veil-dot {
  width: 0.75rem; height: 0.75rem; border-radius: 999px; background: #eef4f2;
  animation: sl-veil-pulse 1.1s ease-in-out infinite;
}
@keyframes sl-veil-pulse { 0%, 100% { transform: scale(0.7); opacity: 0.5; } 50% { transform: scale(1); opacity: 1; } }
.sl-3d-ready .sl-3d-veil, .sl-3d-missing .sl-3d-veil { opacity: 0; visibility: hidden; transition: opacity 400ms ease, visibility 0s linear 400ms; }
.sl-3d-loading .sl-3d-canvas { opacity: 0; }
.sl-3d-ready .sl-3d-canvas { opacity: 1; transition: opacity 500ms ease; }

.sl-3d-pins { position: absolute; inset: 0; pointer-events: none; z-index: 2; }
.sl-3d-pin {
  position: absolute; transform: translate(-50%, calc(-100% - 14px)); pointer-events: auto;
  padding: 0.28rem 0.6rem; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.55);
  background: rgba(18, 24, 32, 0.82); color: #eef4f2; font: 700 12px/1.2 var(--font, ui-sans-serif, system-ui, sans-serif);
  letter-spacing: 0.01em; white-space: nowrap; cursor: pointer; backdrop-filter: blur(3px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
  transition: background var(--dur-fast, 120ms) ease, border-color var(--dur-fast, 120ms) ease, transform var(--dur-fast, 120ms) ease;
}
.sl-3d-pin::after {
  content: ""; position: absolute; left: 50%; top: 100%; width: 1px; height: 14px;
  background: rgba(255, 255, 255, 0.7); transform: translateX(-50%);
}
.sl-3d-pin::before {
  content: ""; position: absolute; left: 50%; top: calc(100% + 14px); width: 8px; height: 8px; border-radius: 999px;
  background: #eef4f2; border: 2px solid rgba(18, 24, 32, 0.85); transform: translate(-50%, -50%); box-sizing: border-box;
}
.sl-3d-pin:hover { background: rgba(0, 128, 128, 0.92); border-color: #7fd8d0; }
.sl-3d-pin.is-selected { background: #c9a227; border-color: #ffe9a3; color: #1a1400; }
.sl-3d-pin.is-selected::before { background: #ffe9a3; }
.sl-3d-pin.is-done:not(.is-selected) { border-style: dashed; opacity: 0.8; }
.sl-3d-pin[hidden] { display: none; }
.sl-3d-pin:focus-visible { outline: 3px solid #7fd8d0; outline-offset: 2px; }

.sl-3d-tools {
  position: absolute; top: 0.6rem; right: 0.6rem; z-index: 4; display: flex; gap: 0.3rem;
  padding: 0.25rem; border-radius: 999px; background: rgba(18, 24, 32, 0.72); backdrop-filter: blur(4px);
}
.sl-3d-tool {
  min-height: 32px; padding: 0.25rem 0.7rem; border-radius: 999px; border: 1px solid transparent;
  background: transparent; color: #eef4f2; font: 700 12px/1 var(--font, ui-sans-serif, system-ui, sans-serif); cursor: pointer;
}
.sl-3d-tool:hover { background: rgba(255, 255, 255, 0.14); }
.sl-3d-tool:disabled { opacity: 0.4; cursor: default; }
.sl-3d-tool:focus-visible { outline: 3px solid #7fd8d0; outline-offset: 1px; }

.sl-3d-caption.is-hover { color: var(--heading); font-weight: 700; }
.sl-3d-hud { border-radius: 0; }
.sl-3d-missing .sl-3d-tools, .sl-3d-missing .sl-3d-pins { display: none; }

/* ---- debrief ---- */
.sl-debrief {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg, 14px);
  padding: 1.1rem 1.2rem 1.2rem; box-shadow: var(--elev-1, var(--shadow)); margin: 0.9rem 0;
}
.sl-debrief.is-won { border-color: color-mix(in srgb, var(--teal) 55%, var(--line)); }
.sl-debrief-scores { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-bottom: 0.8rem; }
.sl-score {
  flex: 1 1 8rem; min-width: 7rem; padding: 0.7rem 0.85rem; border-radius: 12px;
  background: var(--surface-2, var(--bg)); border: 1px solid var(--line);
}
.sl-score-n { display: block; font-size: 1.7rem; font-weight: 800; color: var(--heading); line-height: 1; font-variant-numeric: tabular-nums; }
.sl-score-n small { font-size: 0.95rem; font-weight: 600; color: var(--muted); }
.sl-score-l { display: block; margin-top: 0.3rem; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.sl-debrief-verdict { font-size: 1.05rem; margin: 0.2rem 0 0.4rem; }
.sl-debrief-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1rem; margin-top: 0.8rem; }
.sl-debrief-why { margin: 0.6rem 0 0; padding-left: 1.1rem; color: var(--ink); font-size: 0.9rem; }
.sl-debrief-why li + li { margin-top: 0.35rem; }
.sl-debrief-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.3rem; }
.sl-debrief-row { display: grid; grid-template-columns: 1rem 1fr; align-items: start; gap: 0.55rem; font-size: 0.9rem; color: var(--ink); }
.sl-debrief-row .sl-check-mark { margin-top: 0.2rem; }
.sl-card-quiz { max-width: 46rem; margin-top: 0.8rem; }

/* ---- motion & narrow screens ---- */
@media (prefers-reduced-motion: reduce) {
  .sl-3d-veil-dot, .sl-card .sl-feedback { animation: none; }
  .sl-rail-dot, .sl-meter-fill, .sl-site, .sl-3d-pin, .sl-3d-canvas, .sl-3d-veil { transition: none; }
}
@media (max-width: 799px) {
  .sl-rail-step { flex: 1 1 5.5rem; min-width: 0; padding: 0.3rem 0.35rem; font-size: 0.8rem; }
  .sl-rail-sub { display: none; }
  .sl-3d-tools { top: 0.4rem; right: 0.4rem; }
}

.sl-prepared-tray { padding: .9rem; margin-top: .8rem; border: 2px dashed #0e7c86; border-radius: 12px; min-height: 88px; }
.sl-prepared-tray p { margin: 0 0 .5rem; font-size: .85rem; }
.sl-prepared-item { display: inline-block; padding: .35rem .55rem; margin: .25rem; border-radius: 8px; background: #dcefeb; color: #12303f; }