*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%}:root{color-scheme:dark}[data-scheme=light]{color-scheme:light}body{background:var(--bg);background-image:var(--bg-grad);background-attachment:fixed;color:var(--ink);font-family:Hanken Grotesk,system-ui,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;transition:background-color .4s ease,color .3s ease;overflow-x:hidden}h1,h2,h3,h4{font-family:Fraunces,Georgia,serif;line-height:1.12;letter-spacing:-.01em}.mono{font-family:JetBrains Mono,monospace;font-variant-numeric:tabular-nums}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}input,select,textarea{font-family:inherit}a{color:var(--accent)}::selection{background:var(--accent);color:var(--accent-ink)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}.app{min-height:100%}.page{max-width:820px;margin:0 auto;padding:20px 18px 120px}.page-pad-sm{padding-bottom:40px}.topbar{position:sticky;top:0;z-index:40;-webkit-backdrop-filter:blur(16px) saturate(1.3);backdrop-filter:blur(16px) saturate(1.3);background:color-mix(in srgb,var(--bg) 70%,transparent);border-bottom:1px solid var(--line)}.topbar-in{max-width:820px;margin:0 auto;padding:12px 18px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;cursor:pointer}.brand .mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex:none;background:linear-gradient(135deg,var(--accent),var(--accent-2),var(--accent));background-size:220% 220%;animation:brandshift 7s ease-in-out infinite;color:var(--accent-ink);font-family:Fraunces,serif;font-weight:700;font-size:.72rem;letter-spacing:.01em;box-shadow:0 6px 20px var(--glow)}@keyframes brandshift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.brand-text{display:flex;flex-direction:column;line-height:1.08}.brand b{font-family:Fraunces,serif;font-size:1.02rem}.brand-by{font-size:.58rem;color:var(--ink-mut);letter-spacing:.05em;font-weight:700;text-transform:uppercase}.iconbtn{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:var(--ink-soft);border:1px solid var(--line);background:var(--surface);transition:.15s}.iconbtn:hover{color:var(--ink);border-color:var(--accent);transform:translateY(-1px)}.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:45;display:flex;justify-content:center;gap:4px;padding:8px 10px calc(8px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--bg) 78%,transparent);-webkit-backdrop-filter:blur(18px) saturate(1.3);backdrop-filter:blur(18px) saturate(1.3);border-top:1px solid var(--line)}.tabbar-in{display:flex;gap:2px;width:100%;max-width:520px}.tab{position:relative;flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:7px 4px;border-radius:12px;color:var(--ink-mut);font-size:.68rem;font-weight:600;letter-spacing:.02em;transition:color .2s}.tab.active{color:var(--accent)}.tab svg{width:22px;height:22px}.tab .tab-dot{position:absolute;top:2px;width:32px;height:32px;border-radius:10px;background:var(--accent);opacity:.12;z-index:-1}.eyebrow{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);font-weight:800}.h-hero{font-size:clamp(1.9rem,6vw,2.5rem);font-weight:600}.h-screen{font-size:1.7rem;font-weight:600}.muted{color:var(--ink-soft)}.dim{color:var(--ink-mut)}.tiny{font-size:.8rem}.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 1px color-mix(in srgb,var(--ink) 6%,transparent) inset}.card.flat{box-shadow:none}.card.tap{cursor:pointer;transition:transform .16s cubic-bezier(.2,.8,.2,1),border-color .16s}.card.tap:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--accent) 60%,var(--line-solid))}.card.tap:active{transform:translateY(-1px) scale(.995)}.glass{background:linear-gradient(160deg,color-mix(in srgb,var(--surface-2) 90%,transparent),var(--surface))}.row{display:flex;gap:12px}.col{display:flex;flex-direction:column}.between{display:flex;align-items:center;justify-content:space-between;gap:12px}.wrap-gap{display:flex;flex-wrap:wrap;gap:8px}.grid2{display:grid;gap:14px;grid-template-columns:1fr}@media (min-width: 560px){.grid2{grid-template-columns:1fr 1fr}}.grid3{display:grid;gap:10px;grid-template-columns:repeat(3,1fr)}.spacer{height:16px}.btn{font-weight:600;font-size:.98rem;padding:13px 18px;border-radius:13px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink);transition:transform .1s,filter .15s,border-color .15s;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn:hover{filter:brightness(1.07)}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.4;pointer-events:none}.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--accent-ink);border:none;box-shadow:0 8px 22px var(--glow)}.btn.ghost{background:transparent}.btn.block{width:100%}.btn.lg{padding:16px 22px;font-size:1.05rem;border-radius:15px}.chip{padding:9px 15px;border-radius:999px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink-soft);font-size:.9rem;font-weight:500;transition:.15s}.chip:hover{border-color:var(--accent)}.chip.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.pill{font-size:.68rem;padding:4px 10px;border-radius:999px;border:1px solid var(--line);color:var(--ink-soft);text-transform:uppercase;letter-spacing:.08em;font-weight:600;white-space:nowrap}.seg{display:inline-flex;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:3px}.seg button{padding:8px 14px;border-radius:9px;font-size:.9rem;font-weight:600;color:var(--ink-soft);transition:.15s}.seg button.on{background:var(--accent);color:var(--accent-ink)}.input,select.input{width:100%;padding:12px 14px;background:var(--surface-2);color:var(--ink);border:1px solid var(--line);border-radius:12px;font-size:1rem}.input:focus{outline:none;border-color:var(--accent)}.search{display:flex;align-items:center;gap:10px;background:var(--surface-2);border:1px solid var(--line);border-radius:14px;padding:0 14px}.search input{flex:1;background:none;border:none;padding:13px 0;color:var(--ink);font-size:1rem}.search input:focus{outline:none}.slider{width:100%;accent-color:var(--accent)}.qmeta{display:flex;align-items:center;justify-content:space-between;color:var(--ink-mut);font-size:.85rem}.progress{height:7px;background:var(--surface-2);border-radius:99px;overflow:hidden}.progress>i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width .4s cubic-bezier(.2,.8,.2,1)}.qtext{font-size:1.14rem;line-height:1.6;white-space:pre-wrap}.opt{display:flex;gap:13px;align-items:flex-start;padding:15px 16px;margin-top:11px;border:1.5px solid var(--line);border-radius:14px;background:var(--surface-2);cursor:pointer;transition:border-color .14s,background .14s,transform .1s}.opt:hover{border-color:color-mix(in srgb,var(--accent) 55%,var(--line-solid))}.opt:active{transform:scale(.992)}.opt .key{flex:none;width:28px;height:28px;border-radius:8px;display:grid;place-items:center;font-weight:700;font-size:.85rem;background:var(--surface-3);border:1px solid var(--line);transition:.14s}.opt.sel{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 13%,var(--surface-2))}.opt.sel .key{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.opt.correct{border-color:var(--good);background:var(--good-bg)}.opt.correct .key{background:var(--good);color:#0a1a10;border-color:var(--good)}.opt.wrong{border-color:var(--bad);background:var(--bad-bg)}.opt.wrong .key{background:var(--bad);color:#2a0f0b;border-color:var(--bad)}.opt .kbd{margin-left:auto;font-size:.7rem;color:var(--ink-mut);border:1px solid var(--line);border-radius:6px;padding:1px 6px;align-self:center}.explain{margin-top:18px;padding:17px;border-radius:14px;background:var(--surface-2);border:1px solid var(--line)}.explain h4{font-family:Hanken Grotesk,sans-serif;font-size:.74rem;text-transform:uppercase;letter-spacing:.14em;color:var(--accent);margin-bottom:7px}.explain p{color:var(--ink-soft);white-space:pre-wrap}.explain .ref{margin-top:12px;font-size:.84rem;color:var(--ink-mut)}.verdict{font-weight:700}.verdict.ok{color:var(--good)}.verdict.no{color:var(--bad)}.confidence{display:flex;gap:8px;margin-top:14px}.confidence button{flex:1;padding:11px;border-radius:11px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink-soft);font-weight:600;font-size:.85rem;transition:.14s}.confidence button.on{border-color:var(--accent);color:var(--ink);background:color-mix(in srgb,var(--accent) 12%,var(--surface-2))}.tile{background:var(--surface-2);border:1px solid var(--line);border-radius:14px;padding:14px;text-align:center}.tile b{display:block;font-family:Fraunces,serif;font-size:1.6rem}.tile span{font-size:.76rem;color:var(--ink-mut)}.dom{display:flex;align-items:center;gap:12px;margin:10px 0;font-size:.9rem}.dom .name{width:140px;flex:none;color:var(--ink-soft)}.dom .track{flex:1;height:10px;background:var(--surface-2);border-radius:99px;overflow:hidden}.dom .track>i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent-2))}.dom .pct{width:48px;text-align:right}.listrow{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:13px;background:var(--surface);margin-top:10px;cursor:pointer;transition:border-color .14s,transform .1s}.listrow:hover{border-color:var(--accent)}.listrow:active{transform:scale(.995)}.bookmark{color:var(--ink-mut);transition:.15s}.bookmark.on{color:var(--accent)}.toast{position:fixed;left:50%;bottom:90px;transform:translate(-50%);background:var(--surface-3);border:1px solid var(--accent);color:var(--ink);padding:11px 18px;border-radius:12px;box-shadow:0 10px 30px #0006;font-size:.9rem;z-index:80}.empty{text-align:center;color:var(--ink-mut);padding:46px 16px}.spin{width:16px;height:16px;border:2px solid var(--ink-mut);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.ring-num{font-family:Fraunces,serif;font-weight:700}.confetti-piece{position:fixed;top:-12px;width:9px;height:14px;z-index:100;pointer-events:none;border-radius:2px}.kbd-hint{display:inline-flex;gap:5px;align-items:center;color:var(--ink-mut);font-size:.78rem}.kbd-hint kbd{border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-family:JetBrains Mono,monospace;font-size:.72rem}.navsheet{position:fixed;top:0;right:0;bottom:0;left:0;z-index:90;overflow-y:auto;background:color-mix(in srgb,var(--bg) 90%,transparent);-webkit-backdrop-filter:blur(10px) saturate(1.2);backdrop-filter:blur(10px) saturate(1.2)}.navsheet-in{max-width:560px;margin:0 auto;padding:20px 18px calc(24px + env(safe-area-inset-bottom))}.navgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(42px,1fr));gap:8px}.navcell{position:relative;aspect-ratio:1;min-height:42px;border-radius:10px;font-size:.85rem;font-weight:700;display:grid;place-items:center;transition:transform .1s}.navcell:active{transform:scale(.93)}.navflag{position:absolute;top:4px;right:4px;width:7px;height:7px;border-radius:2px;background:var(--accent-2);box-shadow:0 0 0 1.5px var(--surface)}.navsheet-foot{display:flex;flex-direction:column;gap:10px;margin-top:18px}.paused-cover{position:fixed;top:0;right:0;bottom:0;left:0;z-index:88;display:grid;place-items:center;text-align:center;background:color-mix(in srgb,var(--bg) 94%,transparent);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}@media (max-width: 480px){.hide-sm{display:none}}