/* Explora Academy v3 "The Night Shift" - palette per POLISH_B4: indigo ground, off-white cards, purple structure,
   orange for the one touch target, teal success, amber hints, coral danger. Light mode (cream) and Calm mode. */
:root{--bg:#1b1533;--bg2:#241b45;--bg3:#120d24;--line:#3a2d63;--card:#f7f4ff;--card-text:#1d1535;--card-mut:#5d5480;
  --purple:#5B2A86;--purple2:#8a5fc9;--orange:#E8580C;--orange2:#ff8a4c;--teal:#2bb3a3;--amber:#f2a63b;--coral:#e0574f;
  --text:#f4f0ff;--mut:#b3a8d6;--r:16px;--tap:48px;--font:"Segoe UI",system-ui,-apple-system,Roboto,sans-serif;
  --display:"Trebuchet MS","Segoe UI",system-ui,sans-serif;--shadow:0 12px 32px rgba(8,4,20,.45)}
.mode-light{--bg:#f6f1e7;--bg2:#efe7d8;--bg3:#e7dfcf;--line:#d9cdb6;--card:#fffdf8;--card-text:#1d1535;--card-mut:#5d5480;
  --text:#1d1535;--mut:#5d5480;--purple2:#6b3fa8;--shadow:0 10px 26px rgba(60,40,20,.15)}
*{box-sizing:border-box}
/* the stepper and every panel toggle use the hidden attribute; author display rules (.story, .quiz, .row ...)
   otherwise beat the user-agent [hidden] rule and the screen never goes away */
[hidden]{display:none!important}
html,body{margin:0;background:var(--bg);color:var(--text);font:17px/1.4 var(--font);-webkit-tap-highlight-color:transparent}
body{min-height:100dvh;display:flex;flex-direction:column}
main{flex:1;display:flex;flex-direction:column}
a{color:var(--orange2)}.mode-light a{color:var(--orange)}
h1,h2,h3{font-family:var(--display);line-height:1.15;letter-spacing:-.01em}
h1{font-size:1.6rem;margin:.2em 0 .4em}h2{font-size:1.2rem;margin:.7em 0 .35em}
.mut{color:var(--mut)}.small{font-size:.85rem}.tiny{font-size:.75rem}
.num{font-variant-numeric:tabular-nums}
.wrap{width:100%;max-width:720px;margin:0 auto;padding:14px 16px 96px}
.back{display:inline-flex;align-items:center;gap:6px;color:var(--mut);text-decoration:none;min-height:var(--tap)}
.back svg{width:20px;height:20px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.center{text-align:center}
.card{background:var(--card);color:var(--card-text);border-radius:var(--r);padding:16px;margin:12px 0;box-shadow:var(--shadow)}
.card .mut{color:var(--card-mut)}
.card.dark{background:var(--bg2);color:var(--text);box-shadow:none;border:1px solid var(--line)}
.card.dark .mut{color:var(--mut)}
.flash{padding:10px 14px;border-radius:12px;margin:10px 0;background:var(--bg2);border-left:4px solid var(--amber)}
.flash.bad{border-left-color:var(--coral)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:var(--tap);padding:0 18px;border-radius:14px;
  border:1px solid var(--line);background:var(--bg2);color:var(--text);font:inherit;font-weight:700;text-decoration:none;cursor:pointer;
  touch-action:manipulation;transition:transform .12s}
.btn:active{transform:scale(.97)}
.btn svg{width:22px;height:22px;flex:none}
.btn.primary{background:var(--orange);border-color:var(--orange);color:#fff;box-shadow:0 8px 22px rgba(232,88,12,.35)}
.btn.teal{background:var(--teal);border-color:var(--teal);color:#0b2a26}
.btn.purple{background:var(--purple);border-color:var(--purple);color:#fff}
.btn.wide{width:100%;margin-top:12px}.btn.small{min-height:40px;padding:0 12px;font-size:.9rem;border-radius:12px}
.btn.disabled,.btn[disabled]{opacity:.45;pointer-events:none;box-shadow:none}
.btn.ghost{background:transparent}
.card .btn{background:#fff;color:var(--card-text);border-color:#e4dcf5}.card .btn.primary{background:var(--orange);color:#fff;border-color:var(--orange)}
.card .btn.teal{background:var(--teal);color:#0b2a26;border-color:var(--teal)}
.icon-btn{min-width:var(--tap);min-height:var(--tap);border-radius:50%;border:1px solid var(--line);background:var(--bg2);color:var(--text);display:grid;place-items:center;cursor:pointer}
.icon-btn svg{width:22px;height:22px}
.f{width:100%;min-height:var(--tap);padding:0 12px;border-radius:12px;border:1px solid var(--line);background:var(--bg2);color:var(--text);font:inherit;margin:4px 0 12px}
label{font-size:.9rem;color:var(--mut)}
.pill{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:999px;font-size:.8rem;font-weight:700;background:var(--bg2);border:1px solid var(--line);color:var(--text)}
.pill svg{width:16px;height:16px}
.pill.xp{color:var(--orange2)}.pill.streak{color:var(--amber)}.pill.combo{color:var(--teal)}
.mode-light .pill.xp{color:var(--orange)}
.pill.combo.x2{box-shadow:0 0 12px rgba(43,179,163,.5)}.pill.combo.x3{box-shadow:0 0 20px rgba(43,179,163,.9)}
.progress{height:8px;background:var(--bg2);border-radius:6px;overflow:hidden;margin:8px 0 14px}.progress .bar{height:100%;background:linear-gradient(90deg,var(--purple2),var(--orange));width:0;transition:width .5s}

/* header */
.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:8px;padding:8px 12px;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.brand{color:var(--text);text-decoration:none;font-weight:800;display:flex;align-items:center;gap:8px;flex:1;font-family:var(--display)}
.brand .dot{width:16px;height:16px;border-radius:50%;background:radial-gradient(circle at 40% 40%,var(--orange),var(--purple))}
.stats{display:flex;gap:6px;align-items:center}
.menu{position:relative}.menu summary{list-style:none;width:40px;height:40px;border-radius:50%;background:var(--purple);display:grid;place-items:center;cursor:pointer;color:#fff}
.menu summary svg{width:20px;height:20px}
.menu summary::-webkit-details-marker{display:none}
.menu-body{position:absolute;right:0;top:46px;background:var(--bg2);border:1px solid var(--line);border-radius:14px;padding:8px;min-width:210px;display:flex;flex-direction:column;gap:2px;box-shadow:var(--shadow)}
.menu-body a,.menu-body button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;padding:10px;border-radius:10px;background:none;border:0;color:var(--text);font:inherit;text-decoration:none;cursor:pointer;min-height:44px}
.menu-body a:hover,.menu-body button:hover{background:var(--bg3)}
.menu-body svg{width:20px;height:20px;color:var(--mut)}
.menu-body .on svg{color:var(--teal)}

/* login */
.login-bg{background:radial-gradient(ellipse at 50% 15%,#3a2a6a 0%,var(--bg) 60%)}
.mode-light .login-bg{background:radial-gradient(ellipse at 50% 15%,#fff 0%,var(--bg) 60%)}
.login-wrap{margin:auto;width:100%;max-width:380px;padding:24px;text-align:center}
.login-logo{width:110px;height:110px;margin:10px auto 6px}
.login-wrap form{text-align:left}

/* hub */
.hub-page main{position:relative}
.hub{position:relative;flex:1;min-height:calc(100dvh - 58px);overflow:hidden;touch-action:none;background:var(--bg)}
#world{position:absolute;inset:0;width:100%;height:100%;display:block}
.labels{position:absolute;inset:0;pointer-events:none}
.label{position:absolute;transform:translate(-50%,-50%);text-align:center;color:#fff;text-shadow:0 2px 8px #000;font-weight:800;font-size:.9rem;white-space:nowrap;transition:opacity .2s;font-family:var(--display)}
.mode-light .label{color:#1d1535;text-shadow:0 1px 6px #fff}
.label small{display:block;font-weight:600;color:var(--amber);font-size:.72rem}
.label .lant{display:flex;justify-content:center;gap:3px;margin-top:3px}.label .lant i{width:7px;height:7px;border-radius:50%;background:#3a2d63}
.label .lant i.amber{background:var(--amber)}.label .lant i.lit{background:#ffd98a;box-shadow:0 0 6px #ffd98a}
.hub-hud{position:absolute;left:0;right:0;top:0;padding:10px 12px;display:flex;justify-content:space-between;align-items:flex-start;pointer-events:none;gap:8px}
.hub-hud>*{pointer-events:auto}
.ring{--p:0;width:64px;height:64px;border-radius:50%;background:conic-gradient(var(--teal) calc(var(--p)*1%),var(--bg2) 0);display:grid;place-items:center;box-shadow:var(--shadow);position:relative}
.ring::after{content:"";position:absolute;inset:6px;border-radius:50%;background:var(--bg)}
.ring b{position:relative;z-index:1;font-size:.85rem}.ring small{position:absolute;bottom:-16px;left:50%;transform:translateX(-50%);font-size:.65rem;color:var(--mut);white-space:nowrap}
.ring.ready{background:conic-gradient(var(--amber) 100%,var(--amber) 0)}
.trust{display:flex;align-items:center;gap:6px;background:color-mix(in srgb,var(--bg2) 85%,transparent);padding:6px 10px;border-radius:999px;border:1px solid var(--line);font-size:.8rem;font-weight:700}
.trust svg{width:16px;height:16px;color:var(--coral)}.trust .g{width:54px;height:6px;background:var(--bg3);border-radius:3px;overflow:hidden}.trust .g i{display:block;height:100%;background:var(--coral);transition:width .5s}
.chest{width:52px;height:52px;border-radius:14px;background:var(--bg2);border:1px solid var(--line);display:grid;place-items:center;color:var(--mut)}
.chest svg{width:28px;height:28px}.chest.ready{color:var(--amber);border-color:var(--amber);animation:wobble 1.6s ease-in-out infinite}
.chest.opened{color:var(--teal)}
@keyframes wobble{0%,100%{transform:rotate(0)}30%{transform:rotate(-6deg)}60%{transform:rotate(6deg)}}
.next-step{position:absolute;left:12px;right:12px;bottom:calc(14px + env(safe-area-inset-bottom));display:flex;align-items:center;gap:12px;background:var(--orange);color:#fff;text-decoration:none;padding:12px 16px;border-radius:20px;box-shadow:0 14px 34px rgba(232,88,12,.45);font-weight:800;min-height:64px}
.next-step svg{width:30px;height:30px;flex:none}.next-step small{display:block;font-weight:600;opacity:.9;font-size:.78rem}
.next-step .go{margin-left:auto;width:36px;height:36px;border-radius:50%;background:#fff3;display:grid;place-items:center}
.hub-hint{position:absolute;left:50%;top:84px;transform:translateX(-50%);background:color-mix(in srgb,var(--bg2) 85%,transparent);border:1px solid var(--line);padding:6px 12px;border-radius:999px;font-size:.8rem;color:var(--mut);pointer-events:none;transition:opacity .6s;white-space:nowrap}
.fallback{position:absolute;inset:0;padding:70px 16px 100px;overflow:auto}
#map2d{width:100%;max-width:480px;display:block;margin:0 auto}
#map2d .isl{cursor:pointer}#map2d text{fill:#fff;font-weight:700;font-size:14px;text-anchor:middle;pointer-events:none}
.mode-light #map2d text{fill:#1d1535}
.sheet{position:absolute;left:0;right:0;bottom:0;max-height:78%;background:var(--card);color:var(--card-text);border-radius:24px 24px 0 0;padding:6px 16px calc(16px + env(safe-area-inset-bottom));overflow:auto;box-shadow:0 -12px 40px rgba(0,0,0,.5);animation:up .28s ease-out;z-index:8}
.sheet .mut{color:var(--card-mut)}
@keyframes up{from{transform:translateY(40px);opacity:0}}
.sheet-grab{width:44px;height:5px;border-radius:3px;background:#d9d1ee;margin:6px auto 10px}
.sheet-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.sheet-head h2{margin:0 0 4px}
.sheet .icon-btn{background:#fff;border-color:#e4dcf5;color:var(--card-text)}
.path{list-style:none;margin:0;padding:0}
.path li{margin:0 0 8px}
.path li>a,.path li>span{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:14px;background:#fff;border:1px solid #e4dcf5;color:var(--card-text);text-decoration:none;min-height:62px}
.card.dark .path li>a,.card.dark .path li>span,.dark-path .path li>a,.dark-path .path li>span{background:var(--bg2);border-color:var(--line);color:var(--text)}
.path li.locked>span{opacity:.5}.path li.done>a{border-color:var(--teal)}.path li.open>a{border-color:var(--orange);box-shadow:0 0 0 2px rgba(232,88,12,.25)}
.lvl-text{flex:1;display:flex;flex-direction:column;min-width:0}.lvl-text b{font-family:var(--display)}.lvl-text small{color:var(--card-mut);display:flex;gap:8px;align-items:center}
.dark-path .lvl-text small{color:var(--mut)}
.lvl-text small svg{width:14px;height:14px}
.lantern{width:26px;height:26px;flex:none;color:#3a2d63}.lantern.amber{color:var(--amber)}.lantern.lit{color:#ffd98a;filter:drop-shadow(0 0 6px #ffd98a)}
.ico{width:38px;height:38px;border-radius:12px;flex:none;background:var(--purple);display:grid;place-items:center;color:#fff}
.ico svg{width:22px;height:22px}
.ico-explain{background:#5B2A86}.ico-build{background:#2a6f86}.ico-skirmish{background:#8a3b2e}.ico-debug{background:#a8322e}.ico-decide{background:#8a5fc9}.ico-lab{background:#E8580C}
.boss-btn{background:var(--purple);border-color:var(--purple2);color:#fff}

/* level: six-part card stepper */
.level-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.type-pill{background:var(--purple);color:#fff;border-color:var(--purple)}
.steps{display:flex;gap:6px;margin:8px 0 12px}.steps i{flex:1;height:5px;border-radius:3px;background:var(--bg2)}.steps i.on{background:var(--orange)}.steps i.done{background:var(--teal)}
.screen{animation:fade .35s ease-out}
@keyframes fade{from{opacity:0;transform:translateY(8px)}}
.story{display:grid;gap:12px}
.diorama{position:relative;background:var(--bg3);border-radius:var(--r);overflow:hidden;touch-action:none;border:1px solid var(--line)}
.diorama canvas{display:block;width:100%;height:min(46vh,380px)}
.diorama .dio-hint{position:absolute;left:10px;top:10px;background:color-mix(in srgb,var(--bg) 80%,transparent);padding:5px 10px;border-radius:999px;font-size:.75rem;color:var(--mut);pointer-events:none}
.diorama .dio-title{position:absolute;right:10px;top:10px;background:var(--purple);color:#fff;padding:5px 10px;border-radius:999px;font-size:.75rem;font-weight:700}
.diorama .dio-walk{position:absolute;right:10px;bottom:10px}
.storyline{display:flex;gap:12px;align-items:center;background:var(--card);color:var(--card-text);border-radius:var(--r);padding:12px 14px;box-shadow:var(--shadow)}
.storyline .who{width:44px;height:44px;border-radius:12px;background:var(--purple);display:grid;place-items:center;color:#fff;flex:none}
.storyline .who svg{width:26px;height:26px}
.storyline p{margin:0;font-size:1.02rem;font-weight:600}
.objective{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.objective .icons{display:flex;gap:8px}
.objective .icons span{width:44px;height:44px;border-radius:12px;background:var(--bg2);display:grid;place-items:center;color:var(--amber)}
.objective .icons span svg{width:24px;height:24px}
.objective .icons span.weight{font-weight:800;color:var(--orange2);font-size:.8rem}
.objective p{margin:0;flex:1;min-width:180px}
.brief{background:var(--bg2);padding:10px 12px;border-radius:12px;border:1px dashed var(--purple2)}
.stage{position:relative;background:var(--bg3);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;touch-action:none}
#model{display:block;width:100%;height:min(50vh,420px)}
.stage-controls{display:flex;flex-wrap:wrap;gap:10px;padding:10px;background:var(--bg2)}
.stage-controls label{display:flex;flex-direction:column;gap:4px;flex:1;min-width:140px;color:var(--text);font-size:.85rem}
.stage-controls input[type=range]{width:100%;accent-color:var(--orange);height:var(--tap)}
.stage-controls .btn{flex:1}
.stage-note{padding:10px 12px;min-height:44px;color:var(--amber);font-size:.95rem;background:var(--bg3)}
.video-first{position:relative;background:#000;border-radius:var(--r);overflow:hidden;margin-bottom:10px}
.video-first video{display:block;width:100%;max-height:52vh}
.video-first .skip{position:absolute;right:10px;bottom:10px}

.quiz{margin-top:12px}
.q{background:var(--card);color:var(--card-text);border-radius:var(--r);padding:14px;margin-bottom:14px;box-shadow:var(--shadow)}
.q .qt{font-weight:600;margin:0 0 10px;white-space:pre-wrap}.q .mut{color:var(--card-mut)}
.opts{display:flex;flex-direction:column;gap:8px}
.opt{display:flex;gap:10px;align-items:flex-start;text-align:left;min-height:var(--tap);padding:10px 12px;border-radius:12px;border:1px solid #e4dcf5;background:#fff;color:var(--card-text);font:inherit;cursor:pointer;transition:transform .1s}
.opt:active{transform:scale(.99)}
.opt b{flex:none;width:28px;height:28px;border-radius:50%;background:var(--purple);color:#fff;display:grid;place-items:center;font-size:.8rem}
.opt.sel{border-color:var(--orange)}.opt.right{border-color:var(--teal);background:#e6f7f4}.opt.wrong{border-color:var(--coral);background:#fbe9e7}
.opt.dim{opacity:.35;text-decoration:line-through}
.opt[disabled]{cursor:default}
.verdict{margin-top:10px;padding:10px 12px;border-radius:12px;background:#eef7f5;border-left:4px solid var(--teal);animation:pulse .4s ease-out}
.verdict.bad{border-left-color:var(--coral);background:#fbeeed}
.verdict .trap{margin:6px 0}.verdict .world{color:#8a3d0a;font-size:.92rem}
.verdict .world::before{content:"In our world: ";font-weight:700;color:var(--card-text)}
.verdict .tip{display:flex;gap:8px;align-items:center;color:var(--purple);font-size:.92rem;margin-top:6px}.verdict .tip svg{width:18px;height:18px;flex:none}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(43,179,163,.5)}100%{box-shadow:0 0 0 14px rgba(43,179,163,0)}}
.result{background:linear-gradient(160deg,#2c1f55,var(--bg2));border:1px solid var(--purple2);border-radius:var(--r);padding:18px;margin-top:16px;text-align:center}
.mode-light .result{background:linear-gradient(160deg,#fff,var(--bg2))}
.result h2{margin:0 0 6px}.result .big{font-size:2.6rem;font-weight:900;color:var(--orange2);font-family:var(--display)}
.mode-light .result .big{color:var(--orange)}
.result .xp-gain{color:var(--teal);font-weight:800;font-size:1.2rem}
.result .row{justify-content:center;margin-top:12px}
.reward-grid{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:10px 0}
.reward{display:flex;flex-direction:column;align-items:center;gap:4px;min-width:74px;padding:10px 8px;border-radius:14px;background:var(--bg3);border:1px solid var(--line);font-size:.75rem;color:var(--mut);animation:pop .4s ease-out}
.reward svg{width:30px;height:30px;color:var(--amber)}.reward b{color:var(--text);font-size:1rem}
.reward.teal svg{color:var(--teal)}.reward.orange svg{color:var(--orange2)}
@keyframes pop{from{transform:scale(.6);opacity:0}}
.fragment{background:var(--card);color:var(--card-text);border-radius:var(--r);padding:14px;font-style:italic;text-align:left;margin:10px 0;border-left:4px solid var(--amber)}
.realife{display:flex;gap:12px;align-items:flex-start}
.realife .who{width:44px;height:44px;border-radius:12px;background:var(--orange);color:#fff;display:grid;place-items:center;flex:none}
.realife .who svg{width:26px;height:26px}

/* build bench */
.bench{display:flex;flex-direction:column;gap:10px}
.palette{display:flex;gap:8px;overflow-x:auto;padding:6px 0;scrollbar-width:thin}
.palette button{flex:none;min-height:var(--tap);padding:0 12px;border-radius:12px;border:1px solid var(--line);background:var(--bg2);color:var(--text);font:inherit;font-weight:600;display:flex;align-items:center;gap:8px}
.palette button.on{border-color:var(--orange);box-shadow:0 0 0 2px rgba(232,88,12,.3)}
.palette .sw{width:14px;height:14px;border-radius:4px}
.board{width:100%;height:min(50vh,420px);background:var(--bg3);border:1px solid var(--line);border-radius:var(--r);touch-action:none}
.board .node rect{stroke:#fff3;stroke-width:1.5}.board .node text{fill:#fff;font-size:12px;font-weight:700;text-anchor:middle;pointer-events:none}
.board .node.sel rect{stroke:var(--orange);stroke-width:3}
.board .edge{stroke:#8a5fc9;stroke-width:3;fill:none;opacity:.8}.board .edge.fail{stroke:var(--coral)}
.board .pkt{fill:var(--orange2)}.board .pkt.fail{fill:var(--coral)}.board .pkt.wait{fill:var(--amber)}
.bench-tools{display:flex;gap:8px}.bench-tools .btn{flex:1}.bench-tools .btn.on{border-color:var(--orange);color:var(--orange2)}
.meters{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.meter{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:8px;text-align:center}
.meter b{display:block;font-size:1.3rem;font-family:var(--display)}.meter small{color:var(--mut)}
.meter .g{height:6px;background:var(--bg3);border-radius:3px;margin-top:6px;overflow:hidden}.meter .g i{display:block;height:100%;background:var(--teal);transition:width .6s}
.meter.bad .g i{background:var(--coral)}
.notes{display:flex;flex-direction:column;gap:6px}.notes div{background:#3b1d24;border-left:4px solid var(--coral);padding:8px 10px;border-radius:0 10px 10px 0;font-size:.9rem}
.mode-light .notes div{background:#fbeeed;color:#1d1535}
.notes div.ok{background:#173a36;border-left-color:var(--teal)}.mode-light .notes div.ok{background:#e6f7f4}
.target summary{cursor:pointer;color:var(--mut)}.target ul{padding-left:18px}.target li.ok{color:var(--teal)}.target li.no{color:var(--mut)}

/* skirmish */
.skirmish{display:flex;flex-direction:column;gap:10px}
.sk-board{width:100%;height:min(48vh,400px);background:var(--bg3);border:1px solid var(--line);border-radius:var(--r);touch-action:manipulation}
.sk-board .cell{fill:#241b45;stroke:#3a2d63;stroke-width:1;cursor:pointer}.sk-board .cell.goal{fill:#3b2a6b}.sk-board .cell.spawn{fill:#1a1430}
.sk-board .cell:hover{fill:#2c2158}
.sk-board .piece rect{stroke:#fff3}.sk-board .piece text{fill:#fff;font-size:10px;font-weight:700;text-anchor:middle;pointer-events:none}
.sk-board .bot{fill:#8f8ba0}.sk-board .bot.elite{fill:#e0574f}.sk-board .bot.stopped{fill:var(--teal)}
.sk-board .goalpost{fill:var(--amber)}
.sk-counters{display:flex;gap:8px;flex-wrap:wrap}
.sk-counters span{display:inline-flex;align-items:center;gap:6px;background:var(--bg2);border:1px solid var(--line);border-radius:999px;padding:4px 10px;font-size:.8rem}
.sk-counters .sw{width:12px;height:12px;border-radius:3px}
.wave-bar{display:flex;gap:6px}.wave-bar i{flex:1;height:8px;border-radius:4px;background:var(--bg2)}.wave-bar i.on{background:var(--coral)}.wave-bar i.done{background:var(--teal)}

/* debug */
.timer{font-variant-numeric:tabular-nums;font-weight:900;font-size:1.4rem;color:var(--amber);font-family:var(--display)}
.timer.low{color:var(--coral)}
.cardtext{background:var(--bg3);border:1px solid var(--line);border-radius:var(--r);padding:12px;white-space:pre-wrap;word-break:break-word;font:.85rem/1.45 ui-monospace,SFMono-Regular,Menlo,monospace;max-height:40vh;overflow:auto;color:var(--text)}
.mode-light .cardtext{background:#fff}
.hints{margin:10px 0}#hint-out{display:flex;flex-direction:column;gap:6px;margin-top:8px}#hint-out div{background:var(--bg2);border-left:4px solid var(--amber);padding:8px 10px;border-radius:0 10px 10px 0}
.debug-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.fix code{display:block;white-space:pre-wrap;word-break:break-word;background:#efe9ff;padding:8px;border-radius:8px;margin-top:6px;font-size:.82rem}

/* lab */
.lab iframe{width:100%;height:min(70vh,640px);border:1px solid var(--line);border-radius:var(--r);background:var(--bg2)}
.checklist{list-style:none;padding:0;margin:0}.checklist li label{display:flex;gap:12px;align-items:center;min-height:var(--tap);padding:6px 10px;border:1px solid var(--line);border-radius:12px;margin-bottom:6px;background:var(--bg2);color:var(--text)}
.checklist input{width:22px;height:22px;accent-color:var(--orange)}

/* boss + tribunal */
.boss-stage{position:relative;height:200px;border-radius:var(--r);background:radial-gradient(ellipse at 50% 80%,#3b2a6b,var(--bg3));overflow:hidden;border:1px solid var(--line);display:grid;place-items:center}
.monster{width:150px;height:150px;transition:transform .5s cubic-bezier(.2,.8,.2,1),opacity .5s;color:#8f8ba0;filter:drop-shadow(0 10px 20px rgba(0,0,0,.5))}
.monster.hit{animation:shake .4s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.taunt{position:absolute;left:12px;right:12px;top:12px;background:var(--card);color:var(--card-text);border-radius:12px;padding:8px 12px;font-size:.92rem;font-weight:600}
.taunt.fixed{border-left:4px solid var(--teal)}
.exam-bar{position:sticky;top:58px;z-index:5;display:flex;align-items:center;gap:12px;background:var(--bg);padding:8px 0;border-bottom:1px solid var(--line)}
.exam-bar .timer{flex:1;display:flex;align-items:center;gap:8px}
.lantern-timer{width:34px;height:34px;color:var(--amber);filter:drop-shadow(0 0 8px rgba(242,166,59,.7))}
.lantern-timer.low{color:var(--coral)}
.exam-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:6px;margin:10px 0}
.exam-grid button{min-height:36px;border-radius:8px;border:1px solid var(--line);background:var(--bg2);color:var(--text);font:inherit;font-size:.8rem}
.exam-grid button.ans{background:var(--purple);color:#fff}.exam-grid button.flag{border-color:var(--amber)}.exam-grid button.cur{outline:2px solid var(--orange)}
.exam-nav{position:fixed;left:0;right:0;bottom:0;display:flex;gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--bg) 95%,transparent);border-top:1px solid var(--line);z-index:6}
.exam-nav .btn{flex:1;padding:0 8px}
.keepsake{display:inline-flex;align-items:center;gap:6px}.keepsake svg{color:var(--amber)}
.by-island{list-style:none;padding:0;text-align:left}.by-island li{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid var(--line)}
.boss-list{list-style:none;padding:0;display:flex;gap:8px;flex-wrap:wrap}.boss-list li{display:flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:var(--bg2);color:var(--mut);font-size:.85rem}.boss-list li.ok{color:var(--teal)}
.boss-list li svg{width:16px;height:16px}
.review{text-align:left;margin-top:14px}.review .q{padding:10px}.review summary{cursor:pointer;color:var(--mut)}
.frame{background:var(--bg2);border:1px dashed var(--purple2);border-radius:12px;padding:10px 12px;margin:0 0 12px;font-size:.95rem}.frame p{margin:6px 0 0;color:var(--mut)}
.seal{width:160px;height:160px;margin:10px auto;color:var(--amber);filter:drop-shadow(0 0 20px rgba(242,166,59,.6));animation:pop .6s ease-out}

/* upgrade / night / share */
.upgrade-stage{position:relative;height:min(52vh,420px);border-radius:var(--r);overflow:hidden;background:var(--bg3);border:1px solid var(--line)}
.upgrade-stage canvas{display:block;width:100%;height:100%}
.part-card{display:flex;gap:12px;align-items:center}
.part-card .who{width:56px;height:56px;border-radius:14px;background:var(--amber);color:#1d1535;display:grid;place-items:center;flex:none}
.part-card .who svg{width:32px;height:32px}
.nightlog{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.nightlog li{display:flex;gap:12px;align-items:center;background:var(--card);color:var(--card-text);border-radius:var(--r);padding:12px 14px;box-shadow:var(--shadow);opacity:0;animation:slide .5s ease-out forwards}
.nightlog li:nth-child(2){animation-delay:.35s}.nightlog li:nth-child(3){animation-delay:.7s}
.nightlog .who{width:44px;height:44px;border-radius:12px;background:var(--purple);color:#fff;display:grid;place-items:center;flex:none}.nightlog .who svg{width:24px;height:24px}
@keyframes slide{from{opacity:0;transform:translateX(-16px)}to{opacity:1;transform:none}}
.share-card{background:linear-gradient(160deg,#2c1f55,#1b1533);border:2px solid var(--amber);border-radius:22px;padding:22px;text-align:center;color:#fff;max-width:420px;margin:0 auto}
.share-card h2{margin:0;font-size:1.5rem}.share-card .big{font-size:3rem;font-weight:900;color:var(--amber);font-family:var(--display)}
.share-card .islands{display:flex;justify-content:center;gap:8px;margin:12px 0}.share-card .islands span{width:38px;height:38px;border-radius:10px;background:#3a2d63;display:grid;place-items:center;color:#8f8ba0}.share-card .islands span.ok{background:var(--teal);color:#0b2a26}
.share-card .islands svg{width:22px;height:22px}
.bestiary{display:grid;gap:12px}
.bot-card{display:flex;gap:12px;align-items:center;background:var(--card);color:var(--card-text);border-radius:var(--r);padding:12px 14px;box-shadow:var(--shadow)}
.bot-card .who{width:56px;height:56px;border-radius:14px;background:#3a2d63;color:#c9c2e0;display:grid;place-items:center;flex:none}
.bot-card .who svg{width:34px;height:34px}.bot-card .mut{color:var(--card-mut)}

/* exam card sheet (dioramas) */
.excard{position:fixed;left:0;right:0;bottom:0;z-index:40;background:var(--card);color:var(--card-text);border-radius:24px 24px 0 0;padding:8px 18px calc(18px + env(safe-area-inset-bottom));box-shadow:0 -12px 40px rgba(0,0,0,.55);animation:up .28s ease-out;max-height:80%;overflow:auto}
.excard .mut{color:var(--card-mut)}
.excard .illus{height:110px;display:grid;place-items:center;color:var(--purple);margin:6px 0}
.excard .illus svg{width:90px;height:90px}
.excard h3{margin:0 0 6px;font-size:1.3rem}
.excard .line{display:flex;gap:10px;align-items:flex-start;margin:8px 0;font-size:.98rem}.excard .line svg{width:22px;height:22px;flex:none;margin-top:2px}
.excard .line.def svg{color:var(--teal)}.excard .line.trap svg{color:var(--coral)}.excard .line.ex svg{color:var(--orange)}
.excard .close{position:absolute;right:12px;top:12px}
.excard .close.icon-btn{background:#fff;border-color:#e4dcf5;color:var(--card-text)}

/* admin */
.tbl{width:100%;border-collapse:collapse;font-size:.9rem}.tbl th,.tbl td{padding:8px 6px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl tr.hidden-row td{opacity:.55}.tbl form{margin:0}

/* WALL-E the guide */
.walle{position:fixed;left:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:15;display:flex;align-items:flex-end;gap:8px;max-width:calc(100% - 24px);pointer-events:none}
.hub-page .walle{bottom:calc(92px + env(safe-area-inset-bottom))}
.walle-bot{width:52px;height:56px;flex:none;animation:bob 3s ease-in-out infinite}
.walle-bot svg{width:100%;height:100%}
.walle-say{background:var(--card);color:var(--card-text);border-radius:16px 16px 16px 4px;padding:10px 12px;font-size:.95rem;font-weight:600;max-width:min(76vw,420px);box-shadow:var(--shadow);pointer-events:auto}
.walle.hide{opacity:0;transition:opacity .4s}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
.exam-page .walle{bottom:calc(76px + env(safe-area-inset-bottom))}

/* toasts */
.toasts{position:fixed;left:50%;top:70px;transform:translateX(-50%);z-index:60;display:flex;flex-direction:column;gap:8px;pointer-events:none;width:min(92vw,420px)}
.toast{display:flex;align-items:center;gap:10px;background:var(--card);color:var(--card-text);border-radius:14px;padding:10px 14px;box-shadow:var(--shadow);font-weight:700;animation:drop .35s ease-out}
.toast svg{width:24px;height:24px;color:var(--teal);flex:none}.toast.amber svg{color:var(--amber)}.toast.orange svg{color:var(--orange)}.toast.coral svg{color:var(--coral)}
@keyframes drop{from{transform:translateY(-14px);opacity:0}}
.wc-badge{position:fixed;right:8px;bottom:8px;z-index:99;background:#000c;color:#fff;font-size:.7rem;padding:4px 8px;border-radius:8px;font-family:monospace}
.wc-badge.over{background:#e0574f}

/* coach marks */
.coach{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.6);display:grid;place-items:end center;padding:20px}
.coach-card{background:var(--card);color:var(--card-text);border:2px solid var(--orange);border-radius:var(--r);padding:16px;max-width:420px;width:100%;margin-bottom:100px;display:flex;gap:12px;align-items:center}
.coach-card svg{width:40px;height:40px;color:var(--orange);flex:none}
.coach-card p{margin:0 0 10px;font-size:1.02rem;font-weight:600}
.coach-card .btn{background:var(--orange);color:#fff;border-color:var(--orange)}

/* motion: Calm mode kills particles, drift, loops and all animation */
.mode-calm *,.mode-calm *::before,.mode-calm *::after{animation:none!important;transition:none!important}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media (min-width:900px){.wrap{max-width:900px;padding-top:24px}h1{font-size:2.1rem}#model{height:480px}.board{height:480px}.sk-board{height:460px}.diorama canvas{height:440px}
  .next-step{left:auto;right:24px;bottom:24px;min-width:360px}.hub-page .walle{bottom:24px}.stage-note{font-size:1rem}}
.seg{display:flex;flex-wrap:wrap;gap:6px;align-items:center;flex:1;min-width:160px}.seg .mut{flex-basis:100%}
.stage-controls .btn span{color:var(--orange2)}
.stage-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px;background:var(--bg2);border-top:1px solid var(--line)}
.stage-cap{flex:1;font-size:.95rem}.stage-cap .pill{margin-right:6px;background:var(--purple);color:#fff;border-color:var(--purple)}
.stage-nav{display:flex;gap:6px}

/* ---- teach before test (7 Sep 2026): the level's own explanation, shown between the model and the questions ---- */
.translate{display:flex;gap:8px;align-items:center;margin:10px 2px 0;font-size:.92rem;color:var(--card-mut);
  background:var(--card);border-radius:var(--r);padding:9px 12px;box-shadow:var(--shadow)}
.translate svg{width:18px;height:18px;color:var(--purple);flex:none}
.teach{background:var(--card);color:var(--card-text);border-radius:var(--r);padding:14px 16px;margin:14px 0;box-shadow:var(--shadow)}
.teach h2{display:flex;gap:8px;align-items:center;margin:0 0 10px;font-size:1.02rem}
.teach h2 svg{width:22px;height:22px;color:var(--orange)}
.teach-lines{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:7px}
.teach-lines li{font-size:.98rem;line-height:1.42}
.teach-cards{display:flex;flex-direction:column;gap:10px;margin-top:14px}
.teach-card{display:flex;gap:11px;align-items:flex-start;background:rgba(91,42,134,.07);border-radius:12px;padding:11px 12px}
.teach-card>svg{width:30px;height:30px;color:var(--purple);flex:none}
.teach-card b{display:block;font-size:.98rem}
.teach-card span{display:block;font-size:.9rem;color:var(--card-mut);margin-top:2px;line-height:1.4}
.teach-card span.trap{color:var(--coral)}
.teach-card span.trap svg{width:14px;height:14px;vertical-align:-2px;margin-right:3px}
.realife .deviation{display:flex;gap:7px;align-items:flex-start;margin:8px 0 0;font-size:.9rem;color:var(--card-mut)}
.realife .deviation svg{width:17px;height:17px;flex:none;margin-top:2px}
.review{background:var(--card);color:var(--card-text);border-radius:var(--r);padding:12px 14px;margin:14px 0;text-align:left;box-shadow:var(--shadow)}
.review h3{display:flex;gap:7px;align-items:center;margin:0 0 8px;font-size:.96rem}
.review h3 svg{width:19px;height:19px;color:var(--orange)}
.review ul{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:8px}
.review li b{display:block;font-size:.92rem;font-weight:600}
.review li span{display:block;font-size:.87rem;color:var(--card-mut);margin-top:2px}