/* Student atlas only. All selectors are scoped; editor/teacher styles are untouched. */
.adv-container { max-width: 1220px; }
.adv-page .topbar { height:auto; min-height:52px; padding-top:8px; padding-bottom:8px; }
.adv-page .dev-credit { position:static; text-align:right; padding:0 14px 8px; }
.adv-atlas { --adv-accent:#286b70; --adv-grass:#adc99b; --adv-sand:#ecd4a4; --adv-rock:#b29a72; --adv-sea:#e5f0ee; --adv-panel:#fffdf6; --adv-ink:#243e43; --adv-muted:#52696b; --adv-border:#c6d8cf; color:var(--adv-ink); padding:18px 0 30px; }
.adv-theme-turtle { --adv-accent:#286c51; --adv-grass:#a8cd94; --adv-sand:#ead6a2; --adv-rock:#9d956a; --adv-sea:#e8efde; }
.adv-theme-io { --adv-accent:#22637c; --adv-grass:#b6d2b4; --adv-sand:#ead5a6; --adv-rock:#a99678; --adv-sea:#e0eef4; }
.adv-theme-math { --adv-accent:#8b542a; --adv-grass:#d2c689; --adv-sand:#f0d5a2; --adv-rock:#bc9469; --adv-sea:#f3ebd9; }
.adv-theme-solve { --adv-accent:#655484; --adv-grass:#bdb7cf; --adv-sand:#ddd3c4; --adv-rock:#9a8fa8; --adv-sea:#eee9f3; }
.adv-atlas h1,.adv-atlas h2,.adv-atlas p { margin:0; }
.adv-atlas h1 { font-size:clamp(25px,3vw,36px); line-height:1.4; letter-spacing:-.035em; }
.adv-atlas h2 { font-size:22px; line-height:1.5; }
.adv-atlas p { line-height:1.8; }
.adv-atlas a { color:inherit; }
.adv-atlas a:focus-visible,.adv-atlas button:focus-visible,.adv-atlas summary:focus-visible { outline:3px solid var(--adv-accent); outline-offset:5px; }
.adv-eyebrow { font-size:12px; font-weight:800; letter-spacing:.14em; color:var(--adv-accent); }
.adv-intro { display:flex; justify-content:space-between; align-items:center; gap:30px; margin-bottom:28px; }
.adv-intro h1 { margin:9px 0; }
.adv-intro p:not(.adv-eyebrow) { color:var(--adv-muted); }
.adv-passport { display:grid; gap:7px; flex-shrink:0; border-left:2px solid var(--adv-border); padding:5px 0 5px 28px; font-size:13px; }
.adv-passport strong { font-size:29px; line-height:1.3; }
.adv-passport small { font-size:13px; font-weight:500; }
.adv-world-sea { position:relative; isolation:isolate; padding:28px 6% 20px; border:1px solid #bdcfce; border-radius:28px; background:radial-gradient(ellipse at 50% 40%,#f7f7e8 0,transparent 65%),repeating-radial-gradient(ellipse at 50% 50%,transparent 0 44px,#8bb9bb18 45px 46px),#dfeeed; overflow:hidden; }
.adv-sea-heading { display:flex; justify-content:space-between; color:#47656a; font-size:12px; letter-spacing:.12em; font-weight:700; }
.adv-sea-heading span:first-child { font-size:17px; }
.adv-sea-trail { position:absolute; z-index:-1; inset:50px 5% 30px; width:90%; height:calc(100% - 80px); }
.adv-sea-trail path { fill:none; stroke:#719b9d; stroke-width:2; stroke-dasharray:6 9; opacity:.5; }
.adv-compass { position:absolute; left:48%; top:46%; text-align:center; font-size:32px; line-height:1.2; color:#6d9292; }
.adv-worlds { display:grid; grid-template-columns:1fr 1fr; gap:8px 12%; }
.adv-world { display:block; text-decoration:none; min-width:0; padding:0 8px 22px; border-radius:20px; transition:transform .18s,background .18s; }
.adv-world:hover { transform:translateY(-4px); background:#ffffff60; }
.adv-world-art { position:relative; max-width:360px; margin:auto; }
.adv-island { display:block; width:100%; height:auto; }
.adv-world-index { position:absolute; left:15px; top:42px; font-size:12px; color:var(--adv-accent); font-weight:800; border:1px solid currentColor; border-radius:50%; padding:8px; }
.adv-world-caption { display:flex; align-items:center; justify-content:space-between; gap:10px; }
.adv-world-caption h2 { font-size:24px; letter-spacing:-.04em; }
.adv-world-caption h2 span { font-size:17px; color:var(--adv-accent); }
.adv-world-count { font-size:26px; font-weight:800; white-space:nowrap; }
.adv-world-count small { font-size:12px; font-weight:500; }
.adv-meter { height:5px; background:#78969630; border-radius:5px; overflow:hidden; margin:12px 0 7px; }
.adv-meter span { display:block; height:100%; background:var(--adv-accent); }
.adv-world-note { font-size:12px; color:#466268; }
.adv-sea-footer { border-top:1px solid #abc6c4; padding-top:16px; text-align:center; font-size:12px; color:#4b686b; }
.adv-continue,.adv-route-guide { display:flex; justify-content:space-between; gap:24px; align-items:center; background:var(--adv-panel); padding:24px 28px; border:1px solid var(--adv-border); border-radius:18px; margin:22px 0; }
.adv-continue p,.adv-route-guide p { font-size:13px; color:var(--adv-muted); }
.adv-button { display:inline-flex; align-items:center; justify-content:center; gap:24px; padding:14px 22px; border-radius:10px; background:var(--adv-accent); color:#fff!important; font-weight:700; text-decoration:none; white-space:nowrap; min-height:48px; }
.adv-button:hover { filter:brightness(1.12); }
.adv-community,.adv-score-note { font-size:14px; color:var(--adv-muted); padding:10px 0; }
.adv-community summary,.adv-score-note summary { cursor:pointer; padding:12px 0; }
.adv-community-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:16px; margin-top:15px; }
.adv-back { display:inline-block; font-size:13px; text-decoration:none; padding:8px 0; }
.adv-track-hero { display:flex; align-items:center; justify-content:space-between; gap:25px; padding:14px 26px; border-radius:24px; background:linear-gradient(110deg,var(--adv-panel),var(--adv-sea)); margin-top:8px; border:1px solid var(--adv-border); }
.adv-track-hero h1 { margin:8px 0; font-size:38px; }
.adv-track-hero p:not(.adv-eyebrow) { color:var(--adv-muted); }
.adv-hero-island { width:300px; flex-shrink:0; }
.adv-track-stats { display:flex; align-items:center; gap:22px; margin-top:18px; font-size:13px; }
.adv-track-stats strong { font-size:25px; }
.adv-track-stats small { font-size:13px; font-weight:500; }
.adv-map-toolbar { display:flex; justify-content:space-between; align-items:center; gap:16px; margin:22px 0 15px; }
.adv-legend { display:flex; gap:16px; flex-wrap:wrap; font-size:12px; color:var(--adv-muted); }
.adv-view-switch { display:flex; padding:4px; border:1px solid var(--adv-border); border-radius:10px; background:var(--adv-panel); flex-shrink:0; }
.adv-view-switch[hidden] { display:none; }
.adv-view-switch button { font:inherit; font-size:13px; color:var(--adv-muted); border:0; background:transparent; border-radius:6px; padding:11px 16px; cursor:pointer; }
.adv-view-switch button[aria-pressed=true] { color:white; background:var(--adv-accent); }
.adv-route { border-radius:24px; border:1px solid var(--adv-border); padding:24px 24px 10px; background:radial-gradient(ellipse at 5% 30%,#fff8 0,transparent 30%),repeating-radial-gradient(ellipse at 90% 40%,transparent 0 42px,#8aa48615 43px 44px),var(--adv-sea); }
.adv-route-heading { text-align:center; margin:4px 0 25px; }
.adv-route-heading p { font-size:14px; margin-top:5px; color:var(--adv-muted); }
.adv-chapter { margin:0 0 28px; }
.adv-chapter-label { display:flex; align-items:center; gap:12px; color:var(--adv-muted); font-size:12px; }
.adv-chapter-label span:first-child { background:var(--adv-panel); padding:5px 12px; border:1px solid var(--adv-border); border-radius:18px; }
.adv-chapter-body { position:relative; padding-top:12px; }
.adv-path { position:absolute; inset:12px 0 auto; width:100%; height:260px; pointer-events:none; }
.adv-path path { stroke:var(--adv-rock); stroke-width:6; stroke-dasharray:7 7; fill:none; opacity:.65; }
.adv-path-mobile { display:none; }
.adv-nodes { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); list-style:none; margin:0; padding:0 0 72px; gap:0; }
.adv-node { grid-column:var(--adv-column); grid-row:1; padding:var(--adv-bend) 7px 0; min-width:0; position:relative; }
.adv-node a { display:flex; flex-direction:column; align-items:center; text-align:center; text-decoration:none; border-radius:14px; padding:8px 4px; min-height:210px; }
.adv-node a:hover { background:#fff6; }
.adv-node-number { width:66px; height:60px; flex-shrink:0; display:grid; place-items:center; border-radius:50%; border:3px solid var(--adv-panel); outline:2px solid var(--adv-rock); background:var(--adv-panel); box-shadow:0 7px 0 var(--adv-rock),0 10px 14px #28483620; color:var(--adv-muted); font-size:24px; font-weight:800; margin-bottom:17px; }
.adv-node-passed .adv-node-number { background:var(--adv-accent); color:white; }
.adv-node-active .adv-node-number { background:#f4cf87; color:#634720; }
.adv-node-suggested .adv-node-number { outline:3px solid var(--adv-accent); outline-offset:4px; }
.adv-node-info { display:flex; flex-direction:column; align-items:center; width:100%; }
.adv-node-title { font-size:14px; font-weight:800; line-height:1.5; min-height:42px; overflow-wrap:anywhere; }
.adv-node-status { display:flex; justify-content:center; align-items:center; flex-wrap:wrap; gap:4px; font-size:12px; margin:5px 0; min-height:24px; }
.adv-node-status em { font-size:10px; font-style:normal; color:var(--adv-accent); background:var(--adv-panel); border:1px solid var(--adv-border); padding:1px 5px; border-radius:4px; }
.adv-node-learn { font-size:11px; min-height:20px; color:var(--adv-muted); }
.adv-node-points { display:block; border-top:1px solid var(--adv-border); width:100%; padding-top:6px; margin-top:6px; font-size:10px; color:var(--adv-muted); }
.adv-node-points b { font-size:13px; color:var(--adv-ink); font-weight:700; }
.adv-route-end { text-align:center; padding:0 10px 20px; font-size:13px; color:var(--adv-muted); }
.adv-route[data-mode=list] .adv-path { display:none; }
.adv-route[data-mode=list] .adv-nodes { display:flex; flex-direction:column; padding:0; gap:8px; }
.adv-route[data-mode=list] .adv-node { padding:0; }
.adv-route[data-mode=list] .adv-node a { flex-direction:row; text-align:left; min-height:90px; gap:20px; padding:14px 20px; background:var(--adv-panel); border:1px solid var(--adv-border); }
.adv-route[data-mode=list] .adv-node-number { width:46px; height:42px; font-size:18px; margin:0; box-shadow:0 3px 0 var(--adv-rock); }
.adv-route[data-mode=list] .adv-node-info { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; align-items:center; gap:10px; }
.adv-route[data-mode=list] .adv-node-title { min-height:0; }
.adv-route[data-mode=list] .adv-node-status { justify-content:flex-start; }
.adv-route[data-mode=list] .adv-node-points { margin:0; border:0; padding:0; }
[data-theme=dark] .adv-atlas { --adv-panel:#23363a; --adv-sea:#263f40; --adv-ink:#eef3e7; --adv-muted:#bed1ca; --adv-border:#48625e; --adv-accent:#80c9bd; }
[data-theme=dark] .adv-theme-turtle { --adv-accent:#9ad7af; --adv-sea:#2e4035; }
[data-theme=dark] .adv-theme-io { --adv-accent:#91cee3; --adv-sea:#293e4d; }
[data-theme=dark] .adv-theme-math { --adv-accent:#e8bd83; --adv-sea:#443c2c; }
[data-theme=dark] .adv-theme-solve { --adv-accent:#c6b5ef; --adv-sea:#3a344c; }
[data-theme=dark] .adv-world-sea { background:repeating-radial-gradient(ellipse at 50% 50%,transparent 0 44px,#8bb9bb12 45px 46px),#253e44; border-color:#48625e; }
[data-theme=dark] .adv-sea-heading,[data-theme=dark] .adv-world-note,[data-theme=dark] .adv-sea-footer { color:#bed1ca; }
[data-theme=dark] .adv-button,[data-theme=dark] .adv-view-switch button[aria-pressed=true],[data-theme=dark] .adv-node-passed .adv-node-number { color:#1d3334!important; }
[data-theme=dark] .adv-world:hover,[data-theme=dark] .adv-node a:hover { background:#ffffff0a; }
[data-theme=dark] .adv-route { background:repeating-radial-gradient(ellipse at 90% 40%,transparent 0 42px,#8aa48615 43px 44px),var(--adv-sea); }
@media(max-width:850px) {
  .adv-world-sea { padding:22px 4%; }
  .adv-worlds { gap:10px 6%; }
  .adv-world-caption h2 { font-size:20px; }
  .adv-world-count { font-size:21px; }
  .adv-map-toolbar { flex-direction:column; align-items:flex-start; }
  .adv-hero-island { width:230px; }
  .adv-node { padding-left:3px; padding-right:3px; }
}
@media(max-width:650px) {
  .adv-page .topbar { position:static; flex-direction:column; align-items:stretch; gap:4px; padding:12px 16px; }
  .adv-page .brand { flex:none; }
  .adv-page .nav { gap:4px 14px; font-size:13px; }
  .adv-page .nav .who,.adv-page .nav .top-status { display:none; }
  .adv-page .nav a,.adv-page .nav button { min-height:44px; display:inline-flex; align-items:center; }
  .adv-page .theme-toggle { padding:4px 12px; }
  .adv-atlas { padding-top:6px; }
  .adv-intro { flex-direction:column; align-items:stretch; gap:16px; margin-bottom:20px; }
  .adv-passport { border-left:0; border-top:1px solid var(--adv-border); padding:14px 0 0; display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap; }
  .adv-passport>span:first-child { display:none; }
  .adv-passport strong { font-size:24px; }
  .adv-worlds { grid-template-columns:1fr; gap:8px; }
  .adv-world { padding:0 12px 24px; }
  .adv-world-art { max-width:300px; }
  .adv-world-caption h2 { font-size:23px; }
  .adv-world-sea { border-radius:20px; padding:20px 10px; }
  .adv-sea-heading { padding:0 10px; font-size:10px; }
  .adv-compass,.adv-sea-trail { display:none; }
  .adv-world-note { font-size:12px; }
  .adv-sea-footer { padding:16px 12px 0; }
  .adv-continue,.adv-route-guide { flex-direction:column; align-items:stretch; padding:20px; gap:16px; }
  .adv-track-hero { padding:22px; position:relative; overflow:hidden; min-height:220px; }
  .adv-track-hero>div:first-child { z-index:1; }
  .adv-track-hero h1 { font-size:30px; }
  .adv-track-hero p:not(.adv-eyebrow) { max-width:230px; }
  .adv-hero-island { position:absolute; right:-55px; bottom:-3px; width:190px; opacity:.3; }
  .adv-track-stats { gap:16px; flex-wrap:wrap; }
  .adv-route { padding:20px 12px 8px; border-radius:20px; }
  .adv-route-heading p { font-size:12px; }
  .adv-legend { gap:10px; }
  .adv-view-switch { width:100%; }
  .adv-view-switch button { flex:1; }
  .adv-chapter { margin-bottom:25px; }
  .adv-nodes { display:flex; flex-direction:column; gap:24px; padding:12px 0 15px; }
  .adv-node { padding:0 30px 0 0; }
  .adv-node:nth-child(even) { padding:0 0 0 30px; }
  .adv-node a { flex-direction:row; align-items:center; text-align:left; padding:15px 12px; gap:14px; min-height:155px; background:var(--adv-panel); border:1px solid var(--adv-border); box-shadow:0 4px 0 #7b94791c; }
  .adv-node-number { width:49px; height:47px; margin:0; font-size:20px; }
  .adv-node-info { align-items:flex-start; min-width:0; }
  .adv-node-title { min-height:0; font-size:14px; }
  .adv-node-status { justify-content:flex-start; margin:4px 0; }
  .adv-node-points { display:flex; justify-content:space-between; gap:6px; align-items:center; }
  .adv-node-points { font-size:11px; }
  .adv-node-points br { display:none; }
  .adv-path-desktop { display:none; }
  .adv-path-mobile { display:block; height:100%; top:0; }
  .adv-route[data-mode=list] .adv-node { padding:0; }
  .adv-route[data-mode=list] .adv-node a { padding:14px 12px; gap:15px; min-height:150px; }
  .adv-route[data-mode=list] .adv-node-info { display:flex; gap:0; }
  .adv-route[data-mode=list] .adv-node-points { border-top:1px solid var(--adv-border); padding-top:6px; margin-top:6px; }
}
/* Decorative route companions and resting places never overlay clickable nodes. */
.adv-atlas .adv-route-companion { width:80px; position:absolute; right:8%; top:0; opacity:.65; color:var(--adv-accent); pointer-events:none; }
.adv-atlas .adv-companion { display:block; width:100%; height:auto; }
.adv-atlas .adv-scene-divider { position:absolute; bottom:0; left:22%; pointer-events:none; color:var(--adv-accent); opacity:.42; }
.adv-atlas .adv-scenery { width:145px; height:auto; display:block; }
.adv-atlas .adv-scene-dots { height:1px; flex:1; max-width:150px; background:linear-gradient(90deg,transparent,var(--adv-border),transparent); }
.adv-atlas .adv-chapter:nth-of-type(even) .adv-scene-divider { left:auto; right:22%; }
.adv-atlas .adv-scene-dots { display:none; }
.adv-atlas .adv-route { position:relative; isolation:isolate; }
.adv-atlas .adv-route-heading { position:relative; min-height:70px; padding-top:10px; }
.adv-atlas .adv-chapter { position:relative; }
.adv-atlas .adv-chapter-label { position:relative; z-index:1; }
.adv-atlas .adv-continuous-path { position:absolute; inset:0; width:100%; height:100%; pointer-events:none; z-index:-1; overflow:hidden; }
.adv-atlas .adv-continuous-path path { fill:none; stroke:var(--adv-rock); stroke-width:5; stroke-dasharray:7 8; stroke-linecap:round; opacity:.72; }
.adv-atlas .adv-path-ready .adv-path { display:none; }
.adv-atlas .adv-route[data-mode=list] .adv-continuous-path { display:none; }
.adv-theme-io .adv-route { background:repeating-radial-gradient(ellipse at 110% 15%,transparent 0 65px,#6fabc316 67px 69px,transparent 71px 92px),linear-gradient(100deg,#d9bf8818 0 9%,transparent 10% 91%,#d9bf8818 92%),var(--adv-sea); }
.adv-theme-turtle .adv-route { background:radial-gradient(ellipse at 12% 18%,#7aaf7820 0 7%,transparent 8%),radial-gradient(ellipse at 87% 72%,#7aaf7820 0 9%,transparent 10%),repeating-radial-gradient(ellipse at 50% 40%,transparent 0 100px,#a5bc7914 102px 114px,transparent 116px 180px),var(--adv-sea); }
.adv-theme-math .adv-route { background:linear-gradient(#ba985317 1px,transparent 1px),linear-gradient(90deg,#ba985317 1px,transparent 1px),var(--adv-sea); background-size:48px 48px; }
.adv-theme-solve .adv-route { background:repeating-radial-gradient(ellipse at 110% 30%,transparent 0 38px,#9784b21a 40px 41px,transparent 43px 70px),radial-gradient(ellipse at 0 80%,#9c8eb21c,transparent 45%),var(--adv-sea); }
.adv-atlas .adv-route[data-mode=list] .adv-scene-divider,
.adv-atlas .adv-route[data-mode=list] .adv-route-companion { display:none; }
@media(max-width:650px) {
  .adv-atlas .adv-route-companion { width:56px; right:0; top:-12px; opacity:.4; }
  .adv-atlas .adv-route-heading { padding-top:32px; }
  .adv-atlas .adv-scene-divider { left:auto; right:4px; bottom:-14px; opacity:.28; }
  .adv-atlas .adv-chapter:nth-of-type(even) .adv-scene-divider { right:4px; }
  .adv-atlas .adv-scenery { width:90px; }
  .adv-atlas .adv-chapter { margin-bottom:40px; }
}
@media(prefers-reduced-motion:reduce) {
  .adv-atlas * { animation:none!important; transition:none!important; scroll-behavior:auto!important; }
  .adv-world:hover { transform:none; }
}

.adv-node-number { position:relative; }
.adv-atlas .learning-crown { position:absolute; right:-7px; top:-9px; width:18px; height:16px; pointer-events:none; }
.adv-atlas .learning-crown svg { display:block; width:100%; height:100%; }

/* Compact route: building entry on island art, next action on the actual node. */
.adv-build-entry{position:relative;display:block;text-decoration:none;color:var(--adv-ink);border-radius:20px}.adv-build-badge{position:absolute;right:16px;bottom:8px;display:flex;align-items:center;gap:7px;padding:10px 14px;border-radius:30px;background:var(--adv-panel);border:2px solid var(--adv-accent);box-shadow:0 4px 12px #0002;font-size:13px;font-weight:800}.adv-build-badge svg{width:23px;height:23px}.adv-build-entry:hover .adv-build-badge{background:var(--adv-accent);color:var(--adv-panel)}.adv-build-entry:focus-visible{outline:3px solid var(--adv-accent);outline-offset:4px}.adv-route-complete{padding:10px 0;font-weight:700}
.adv-next-cue{position:absolute;bottom:calc(100% + 9px);left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:3px;z-index:3;pointer-events:none;white-space:nowrap;color:#d83d42;font-size:12px;font-weight:800;line-height:1.3}.adv-next-cue>span{padding:4px 9px;border:1px solid #d83d42;border-radius:20px;background:#fff6ed;color:#a6232b;box-shadow:0 2px 6px #0001}.adv-next-cue svg{width:22px;height:24px;animation:adv-next-bounce 1.8s ease-in-out infinite;filter:drop-shadow(0 1px 0 #fff)}
.adv-route[data-mode=map] .adv-chapter-body{padding-top:32px}.adv-route[data-mode=list] .adv-next-cue{position:static;transform:none;flex-direction:row;order:2;margin-top:4px}.adv-route[data-mode=list] .adv-node-suggested .adv-node-number{margin-top:15px;margin-bottom:22px}.adv-route[data-mode=list] .adv-next-cue svg{display:none}.adv-route[data-mode=list] .adv-next-cue{position:absolute;top:calc(100% + 5px);bottom:auto;left:50%;transform:translateX(-50%)}
@keyframes adv-next-bounce{0%,100%{transform:translateY(-3px)}50%{transform:translateY(3px)}}
@media(max-width:650px){.adv-track-hero{padding-right:104px}.adv-build-entry.adv-hero-island{position:absolute;right:4px;bottom:10px;width:110px;opacity:1}.adv-build-badge{right:5px;bottom:0;padding:7px 10px;font-size:12px}.adv-build-badge svg{width:20px;height:20px}.adv-next-cue{font-size:10px;bottom:calc(100% + 5px)}.adv-next-cue>span{padding:3px 6px}.adv-next-cue svg{height:18px;width:17px}.adv-route[data-mode=map] .adv-chapter-body{padding-top:0}}
@media(prefers-reduced-motion:reduce){.adv-next-cue svg{animation:none}}