:root{--amber:#ffb45c;--amber-soft:#ffd9a8;--ink:#14100b;--panel:#14100be0;--line:#ffb45c47;--ok:#7fd88a;--bad:#ff9d7a;--mono:"SF Mono", ui-monospace, Menlo, monospace}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--ink);height:100%;overflow:hidden}body{color:var(--amber-soft);font-family:-apple-system,Segoe UI,system-ui,sans-serif}#scene{width:100%;height:100%;display:block;position:fixed;inset:0}.hidden{display:none!important}#loading{z-index:50;background:radial-gradient(120% 90% at 50% 20%,#241a11 0%,#14100b 70%);place-items:center;display:grid;position:fixed;inset:0}.loader-card{text-align:center;width:min(420px,86vw)}.loader-title{letter-spacing:.35em;color:var(--amber);font-size:42px;font-weight:800}.loader-sub{opacity:.8;margin-top:8px}.loader-bar{background:#2c2117;border-radius:6px;height:6px;margin:22px auto 10px;overflow:hidden}.loader-bar span{background:linear-gradient(90deg, var(--amber), #ffe9c9);width:5%;height:100%;transition:width .3s;display:block}.loader-step{opacity:.55;font-size:12px}#hud{pointer-events:none;z-index:10;position:fixed;inset:0}#crosshair{background:#ffd9a8d9;border-radius:50%;width:6px;height:6px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 0 8px #ffb45cb3}#quest-card{background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-radius:14px;width:min(340px,44vw);padding:14px 16px;position:absolute;top:18px;left:18px}#quest-progress{gap:5px;margin-bottom:9px;display:flex}#quest-progress i{background:#3a2d20;border-radius:4px;width:16px;height:5px;display:block}#quest-progress i.done{background:var(--ok)}#quest-progress i.now{background:var(--amber);animation:1.4s infinite pulse}#quest-kicker{letter-spacing:.25em;color:var(--amber);opacity:.9;font-size:10px}#quest-title{color:#fff;margin:4px 0 6px;font-size:19px;font-weight:700}#quest-prompt{opacity:.92;font-size:13.5px;line-height:1.45}#quest-hint{border-top:1px dashed var(--line);color:var(--amber-soft);margin-top:9px;padding-top:9px;font-size:13px;font-style:italic}#interact-pill{background:var(--panel);border:1px solid var(--line);color:#fff;border-radius:999px;padding:9px 18px;font-size:14px;font-weight:600;animation:1.6s ease-in-out infinite bob;position:absolute;bottom:26%;left:50%;transform:translate(-50%)}#interact-pill b{color:var(--amber)}#subtitle{text-align:center;border:1px solid var(--line);color:#fff;text-shadow:0 1px 2px #000;background:#0c0906d1;border-radius:12px;width:min(720px,90vw);padding:13px 20px;font-size:17.5px;line-height:1.45;position:absolute;bottom:12%;left:50%;transform:translate(-50%)}#subtitle:before{content:"ClaudiaSI";letter-spacing:.3em;color:var(--amber);margin-bottom:4px;font-size:10px;display:block}#toast{border:1px solid var(--amber);color:#fff;text-align:center;background:linear-gradient(#2c2113,#1a140c);border-radius:14px;padding:14px 26px;font-size:19px;font-weight:700;animation:.35s ease-out pop;position:absolute;top:16%;left:50%;transform:translate(-50%);box-shadow:0 10px 40px #ffb45c40}#toast small{color:var(--amber-soft);margin-top:3px;font-size:13px;font-weight:500;display:block}#controls-hint{opacity:.55;background:#0c090699;border-radius:8px;padding:7px 11px;font-size:11.5px;position:absolute;bottom:14px;right:16px}#controls-hint b{color:var(--amber)}#editor{z-index:30;background:var(--panel);border-left:1px solid var(--line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);flex-direction:column;width:min(560px,94vw);height:100%;animation:.25s ease-out slidein;display:flex;position:fixed;top:0;right:0}#editor-head{justify-content:space-between;align-items:baseline;padding:16px 18px 6px;display:flex}#editor-title{color:#fff;font-size:17px;font-weight:700}#editor-badge{color:var(--ok);font-size:12px}#editor-prompt{opacity:.9;padding:0 18px 12px;font-size:13.5px;line-height:1.5}#editor-surface{border-top:1px solid var(--line);border-bottom:1px solid var(--line);flex:1;min-height:0;overflow:hidden}#editor-surface .cm-editor{height:100%}#editor-surface .cm-scroller{font-family:var(--mono);font-size:14px}#editor-console{min-height:86px;max-height:30%;font-family:var(--mono);white-space:pre-wrap;background:#00000059;padding:11px 16px;font-size:12.5px;line-height:1.55;overflow:auto}.console-placeholder{opacity:.4}.chk{display:block}.chk.ok:before{content:"✔ ";color:var(--ok)}.chk.no:before{content:"✘ ";color:var(--bad)}.out{color:#cfe8ff}.err{color:var(--bad)}.msg{color:var(--amber);font-weight:600}#editor-actions{justify-content:flex-end;gap:10px;padding:13px 16px;display:flex}#editor-actions button{font:inherit;cursor:pointer;color:var(--amber-soft);border:1px solid var(--line);background:#241a11;border-radius:10px;padding:9px 14px;font-size:13.5px;font-weight:600}#editor-actions button:hover{border-color:var(--amber);color:#fff}#editor-actions #btn-run{background:var(--amber);color:#20160c;border-color:var(--amber)}#editor-actions #btn-run:disabled{opacity:.5;cursor:wait}#editor-actions kbd{background:#0000004d;border-radius:4px;margin-left:4px;padding:1px 4px;font-size:10px}#cinema{z-index:40;background:#000;place-items:center;display:grid;position:fixed;inset:0}#cinema-video{max-width:100%;max-height:92vh}#cinema-bar{color:var(--amber-soft);align-items:center;gap:16px;font-size:13px;display:flex;position:absolute;bottom:18px;left:50%;transform:translate(-50%)}#cinema-bar button{font:inherit;cursor:pointer;border:1px solid var(--line);color:inherit;background:0 0;border-radius:8px;padding:6px 12px}#lesson-bar{flex-wrap:wrap;justify-content:center;gap:8px;max-width:70vw;display:flex;position:absolute;top:18px;left:50%;transform:translate(-50%)}.lesson-pill{font:inherit;cursor:pointer;background:var(--panel);color:var(--amber-soft);border:1.5px solid var(--line);border-radius:999px;padding:6px 13px;font-size:12.5px;font-weight:700}.lesson-pill.active{background:var(--amber);color:#20160c;border-color:var(--amber)}.lesson-pill:disabled{opacity:.45;cursor:not-allowed}#exercise-bar{flex-direction:column;gap:6px;width:min(340px,44vw);display:flex;position:absolute;top:190px;left:18px}.ex-chip{font:inherit;text-align:left;cursor:pointer;background:var(--panel);color:var(--amber-soft);border:1.5px solid var(--line);border-radius:10px;padding:8px 12px;font-size:13px;transition:transform .12s}.ex-chip:hover:not(:disabled){border-color:var(--amber);transform:translate(3px)}.ex-chip b{background:#3a2d20;border-radius:6px;place-items:center;width:20px;height:20px;margin-right:7px;font-size:11px;display:inline-grid}.ex-chip.now{border-color:var(--amber);color:#fff}.ex-chip.now b{background:var(--amber);color:#20160c}.ex-chip.done{opacity:.72}.ex-chip.done b{background:var(--ok);color:#10240f}.ex-chip:disabled{opacity:.4;cursor:not-allowed}#stage-note{opacity:.55;white-space:nowrap;background:#0c090699;border-radius:8px;padding:7px 12px;font-size:12px;position:absolute;bottom:16px;left:50%;transform:translate(-50%)}#stage-note b{color:var(--amber)}@media (width<=760px){#exercise-bar{flex-flow:wrap;width:calc(100vw - 36px);top:auto;bottom:70px}#lesson-bar{max-width:94vw;top:auto;bottom:34px}#stage-note{display:none}}@keyframes pulse{50%{opacity:.4}}@keyframes bob{50%{transform:translate(-50%)translateY(-5px)}}@keyframes pop{0%{opacity:0;transform:translate(-50%)scale(.85)}}@keyframes slidein{0%{opacity:0;transform:translate(40px)}}