:root{--color-bg:#0a0d14;--color-surface:#0f1522;--color-glass:#0c111cb8;--color-ink:#e6f4ff;--color-ink-2:#b8c6d9;--color-muted:#8595ad;--color-cyan:#22d3ee;--color-blue:#3b82f6;--color-gold:#ffd27a;--color-glow:#22d3ee73;--color-rule:#8fa3bf29;--color-rule-strong:#8fa3bf47;--color-correct:#34d399;--color-wrong:#f87171;--font-display:"Space Grotesk Variable", "Space Grotesk", system-ui, sans-serif;--font-body:"Inter Variable", "Inter", system-ui, sans-serif;--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--safe-left:env(safe-area-inset-left,0px);--safe-right:env(safe-area-inset-right,0px);--gutter:clamp(16px, 3.2vw, 44px);--ease-out:cubic-bezier(.16, 1, .3, 1);--panel-w:min(420px, 36vw)}*,:before,:after{box-sizing:border-box}html,body{background:var(--color-bg);width:100%;height:100%;color:var(--color-ink);font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;font-size:16px;overflow:hidden}body{overscroll-behavior:none;-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:default}:focus-visible{outline:2px solid var(--color-cyan);outline-offset:2px}.eyebrow{font-family:var(--font-display);letter-spacing:.32em;text-transform:uppercase;color:var(--color-cyan);text-shadow:0 0 18px var(--color-glow);margin:0 0 10px;font-size:.75rem;font-weight:500}.icon-button{border:1px solid var(--color-rule-strong);background:var(--color-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:999px;place-items:center;width:44px;height:44px;padding:0;transition:border-color .2s,background-color .2s;display:inline-grid;position:relative}.icon-button:hover{border-color:#22d3ee99}.icon-button svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:20px;height:20px}.button-primary,.button-ghost{border-radius:999px;justify-content:center;align-items:center;gap:8px;min-height:46px;padding:0 22px;font-weight:600;display:inline-flex}.button-primary{color:#041018;background:linear-gradient(100deg,#22d3ee,#3b82f6);border:0;box-shadow:0 0 24px #22d3ee59}.button-ghost{border:1px solid var(--color-rule-strong);background:#ffffff08;font-weight:500}.button-ghost:hover{border-color:#22d3ee8c}.webgl{width:100vw;height:100vh;touch-action:none;cursor:grab;outline:none;height:100dvh;display:block;position:fixed;top:0;bottom:0;left:0;right:0}.webgl:active{cursor:grabbing}.vignette{z-index:1;pointer-events:none;background:radial-gradient(44% 50% at 0 0,#060310cc 0%,#06031073 55%,#0000 100%),radial-gradient(80% 70% at 50% 45%,#0000 55%,#04020c8c 100%),linear-gradient(#06031080 0%,#0000 22% 78%,#06031099 100%);position:fixed;top:0;bottom:0;left:0;right:0}[data-reveal]{opacity:0}.hud{z-index:2;pointer-events:none;position:fixed;top:0;bottom:0;left:0;right:0}.hud__top{top:calc(var(--gutter) + var(--safe-top));left:calc(var(--gutter) + var(--safe-left));max-width:28rem;position:absolute}.hud__title{font-family:var(--font-display);letter-spacing:-.01em;background:linear-gradient(100deg,#f0fbff 10%,#7dd3fc 55%,#3b82f6 100%);color:#0000;-webkit-background-clip:text;background-clip:text;margin:0;font-size:clamp(2rem,5vw,3.25rem);font-weight:600;line-height:1.05}.hud__subtitle,.scoreboard{text-shadow:0 1px 10px #05080dd9,0 0 2px #05080d99}.hud__subtitle{max-width:24rem;color:var(--color-muted);margin:10px 0 0;font-size:.9375rem;line-height:1.55}.scoreboard{width:min(22rem,100%);margin-top:24px;transition:opacity .4s}.has-panel .scoreboard{opacity:.35}.stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 28px;margin:0;display:grid}.stat{border-left:1px solid var(--color-rule-strong);margin:0;padding-left:12px}.stat__label{color:var(--color-muted);font-size:.75rem}.stat__value{font-family:var(--font-display);color:var(--color-ink);transform-origin:0;margin:2px 0 0;font-size:1.75rem;font-weight:600;line-height:1.2;display:inline-block}.progress-track{background:var(--color-rule);border-radius:4px;height:4px;margin-top:14px;display:flex;position:relative;overflow:hidden}.progress-track span{height:100%;transition:width .8s var(--ease-out)}.progress-track__correct{width:var(--correct,0%);background:linear-gradient(90deg, #ffb547, var(--color-gold));box-shadow:0 0 10px #ffd27a99}.progress-track__wrong{width:var(--wrong,0%);background:#f87171b3}.hud-actions{z-index:8;top:calc(var(--gutter) + var(--safe-top));right:calc(var(--gutter) + var(--safe-right));gap:10px;display:flex;position:fixed}.hud-actions__count{background:var(--color-gold);color:#1a1204;text-align:center;border-radius:999px;min-width:20px;height:20px;padding:0 5px;font-size:.6875rem;font-weight:700;line-height:20px;position:absolute;top:-4px;right:-4px;box-shadow:0 0 12px #ffd27a99}.hud-actions__count[hidden]{display:none}.hud__bottom{left:50%;bottom:calc(var(--gutter) + var(--safe-bottom));transition:opacity .3s;position:absolute;transform:translate(-50%)}.has-panel .hud__bottom{opacity:0}.hint{border:1px solid var(--color-rule);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--color-muted);white-space:nowrap;background:#0a0d148c;border-radius:999px;align-items:center;gap:10px;margin:0;padding:10px 16px;font-size:.8125rem;display:inline-flex}.hint__icon{fill:none;width:16px;height:16px;stroke:var(--color-cyan);stroke-width:1.6px;stroke-linecap:round;flex:none}.tooltip{z-index:7;border:1px solid var(--color-rule-strong);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);pointer-events:none;opacity:0;--dot:var(--color-cyan);background:#0c111ce6;border-radius:12px;gap:3px;max-width:260px;padding:10px 12px;transition:opacity .15s;display:grid;position:fixed;top:0;left:0}.tooltip[data-state=correct]{--dot:var(--color-gold)}.tooltip[data-state=wrong]{--dot:var(--color-wrong)}.tooltip.is-visible{opacity:1}.tooltip__meta{color:var(--color-muted);align-items:center;gap:6px;font-size:.6875rem;display:flex}.tooltip__meta:before{content:"";background:var(--dot);width:7px;height:7px;box-shadow:0 0 8px var(--dot);border-radius:50%}.tooltip__title{font-size:.8125rem;line-height:1.4}.panel{z-index:6;top:calc(var(--gutter) + var(--safe-top) + 60px);right:calc(var(--gutter) + var(--safe-right));width:var(--panel-w);min-width:340px;max-height:calc(100dvh - var(--gutter) * 2 - var(--safe-top) - var(--safe-bottom) - 60px);border:1px solid 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14px;font-size:.875rem;line-height:1.55}.quiz__next{color:var(--color-gold);margin:0;font-size:.8125rem}.quiz__countdown{background:var(--color-rule);border-radius:3px;height:3px;margin:4px 0 14px;overflow:hidden}.quiz__countdown span{background:var(--color-wrong);transform-origin:0;height:100%;display:block}.quiz__close{width:100%;margin-top:16px}.quiz__feedback .quiz__close{margin-top:0}.modal{z-index:15;padding:var(--gutter);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#05080d9e;place-items:center;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.modal[hidden]{display:none}.modal__card{width:min(420px,100%);max-height:calc(100dvh - 2 * var(--gutter));border:1px solid var(--color-rule-strong);background:#0c111cf2;border-radius:22px;padding:28px;overflow-y:auto;box-shadow:0 30px 80px #00000080}.modal__title{font-family:var(--font-display);margin:0 0 12px;font-size:1.5rem;font-weight:600;line-height:1.25}.modal__text{color:var(--color-ink-2);margin:0 0 24px;font-size:.9375rem;line-height:1.6}.modal__text strong{color:var(--color-ink)}.modal__buttons{grid-template-columns:1fr 1fr;gap:10px;display:grid}.modal__action{width:100%;margin-top:20px}.modal__card--gift{text-align:center;background:radial-gradient(circle at 50% 22%,#ffd27a2e,#0000 55%),#0c111cf5;border-color:#ffd27a4d}.gift__stage{place-items:center;height:170px;margin-bottom:12px;display:grid;position:relative}.gift__box{width:96px;height:96px;position:absolute}.gift__base{background:linear-gradient(90deg,#0000 42%,#ffd27a 42% 58%,#0000 58%),linear-gradient(160deg,#2a8fd6,#1e4fb8);border-radius:8px;position:absolute;top:26px;bottom:0;left:6px;right:6px;box-shadow:0 10px 30px #3b82f666}.gift__lid{transform-origin:20% 100%;background:linear-gradient(90deg,#0000 42%,#ffe2a3 42% 58%,#0000 58%),linear-gradient(160deg,#38bdf8,#2563eb);border-radius:6px;height:22px;position:absolute;top:10px;left:0;right:0}.gift__lid:before,.gift__lid:after{content:"";border:4px solid 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auto;padding:10px 16px;font-size:.875rem;position:fixed}.onboard{z-index:20;padding:var(--gutter);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#05080d9e;place-items:center;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.onboard[hidden]{display:none}.onboard__card{border:1px solid var(--color-rule-strong);background:#0c111cf0;border-radius:22px;width:min(440px,100%);padding:28px;box-shadow:0 30px 80px #00000080}.onboard__title{font-family:var(--font-display);margin:0 0 10px;font-size:1.625rem;font-weight:600}.onboard__text{color:var(--color-ink-2);margin:0 0 20px;font-size:.9375rem;line-height:1.6}.onboard__tips{gap:12px;margin:0 0 24px;padding:0;list-style:none;display:grid}.onboard__tip{color:var(--color-ink-2);align-items:center;gap:14px;font-size:.875rem;display:flex}.onboard__tip strong{color:var(--color-ink);font-weight:600}.onboard__icon{border:1px solid var(--color-rule-strong);background:#22d3ee0f;border-radius:12px;flex:none;place-items:center;width:40px;height:40px;display:grid}.onboard__icon svg{fill:none;width:22px;height:22px;stroke:var(--color-cyan);stroke-width:1.6px;stroke-linecap:round;stroke-linejoin:round}.onboard .button-primary{width:100%}.loader{z-index:30;background:radial-gradient(circle at 50% 55%, #22d3ee14, transparent 45%), var(--color-bg);place-items:center;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.loader__inner{flex-direction:column;align-items:center;width:min(260px,72vw);display:flex}.loader__seed{background:var(--color-cyan);width:14px;height:14px;box-shadow:0 0 12px 2px var(--color-glow), 0 0 42px 10px #3b82f640;animation:seed-pulse 1.8s var(--ease-out) infinite;border-radius:50%;margin-bottom:28px}.loader__title{font-family:var(--font-display);letter-spacing:.04em;margin:0 0 18px;font-size:1.125rem;font-weight:600}.loader__bar{background:var(--color-rule);border-radius:2px;width:100%;height:2px;position:relative;overflow:hidden}.loader__bar span{transform-origin:0;background:linear-gradient(90deg, var(--color-blue), var(--color-cyan));box-shadow:0 0 10px var(--color-glow);position:absolute;top:0;bottom:0;left:0;right:0;transform:scaleX(0)}.loader__meta{width:100%;color:var(--color-muted);justify-content:space-between;gap:12px;margin:12px 0 0;font-size:.75rem;display:flex}.loader__value{font-variant-numeric:tabular-nums;color:var(--color-ink)}[data-state=error] .loader__seed{background:#f87171;animation:none;box-shadow:0 0 16px 2px #f8717173}[data-state=error] .loader__value{display:none}.noscript{z-index:40;text-align:center;background:var(--color-bg);color:var(--color-muted);place-items:center;margin:0;padding:24px;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}@keyframes seed-pulse{0%,to{opacity:.75;transform:scale(.85)}50%{opacity:1;transform:scale(1.15)}}@media (max-width:720px){:root{--gutter:16px}.vignette{background:linear-gradient(#060310d9 0%,#0603109e 24%,#0000 42% 80%,#06031099 100%),radial-gradient(90% 70%,#0000 60%,#04020c80 100%)}.hud__top{right:calc(var(--gutter) + var(--safe-right) + 108px)}.hud__title{font-size:1.875rem}.hud__subtitle{margin-top:6px;font-size:.8125rem}.scoreboard{width:calc(100vw - 2 * var(--gutter));margin-top:14px}.stat__value{font-size:1.375rem}.hud__bottom{width:calc(100vw - 2 * var(--gutter));text-align:center}.hint{white-space:normal;text-align:left;padding:8px 12px;font-size:.75rem}.panel{width:auto;min-width:0;max-height:72dvh;padding-bottom:var(--safe-bottom);z-index:9;border-bottom:0;border-left:0;border-right:0;border-radius:22px 22px 0 0;top:auto;bottom:0;left:0;right:0}.panel:before{content:"";background:var(--color-rule-strong);border-radius:2px;width:40px;height:4px;position:absolute;top:8px;left:50%;transform:translate(-50%)}.panel__body{padding:26px 18px 20px}.quiz__question{margin-bottom:16px;font-size:1.125rem}.answer{min-height:48px;font-size:.875rem}.modal__card{padding:24px 20px}}@media (prefers-reduced-motion:reduce){.loader__seed{animation:none}.answer,.progress-track span{transition:none}}