:root{color-scheme:dark;--bg:#0b1020;--surface:#141c32;--surface2:#1a2540;--line:#2b3751;--ink:#f4f7ff;--muted:#a4b0c8;--accent:#92e9c3;--purple:#b8a8ff;--red:#fca4ae;--yellow:#f4d49b;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-height:100vh;background:radial-gradient(ellipse 75% 35% at 100% -8%,#283259 0%,transparent 70%),var(--bg);color:var(--ink);line-height:1.5}
button,input{font:inherit}
button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.app-shell{max-width:1140px;margin:0 auto;padding:0 24px}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:28px 0 22px}
.brand{display:inline-flex;gap:11px;align-items:center;text-decoration:none;color:var(--ink);font-weight:850;font-size:26px;letter-spacing:-1px}
.brand-icon{display:grid;place-items:center;color:var(--bg);background:var(--accent);width:35px;height:35px;border-radius:12px;font-size:26px}
.accent{color:var(--accent)}
.header-badge{color:var(--muted);font-size:13px;letter-spacing:.04em}
.tabs{display:flex;border-bottom:1px solid var(--line);gap:30px;margin-bottom:34px}
.tab{border:0;border-bottom:2px solid transparent;background:transparent;color:var(--muted);padding:15px 4px 16px;font-weight:650;display:flex;align-items:center;gap:9px}
.tab:hover{color:var(--ink)}.tab.is-active{border-color:var(--accent);color:var(--accent)}
.page{display:none;animation:reveal .25s ease}.page.is-active{display:block}@keyframes reveal{from{opacity:.4;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.hero{background:linear-gradient(120deg,#1c2847 0%,#253054 64%,#18394b 100%);border:1px solid #354566;border-radius:26px;min-height:315px;padding:42px 48px;position:relative;overflow:hidden}
.eyebrow,.overline{font-size:11px;font-weight:850;letter-spacing:.14em;color:var(--accent)}.dot{display:inline-block;background:var(--accent);height:7px;width:7px;border-radius:100%;margin-right:7px}
h1,h2,p{margin-top:0}h1{font-size:clamp(30px,4.3vw,49px);line-height:1.14;letter-spacing:-.045em;margin:13px 0 16px;max-width:635px}
.hero h1 em{font-style:normal;color:var(--accent)}.hero p{color:#c2cde2;max-width:630px;font-size:16px;margin-bottom:25px}
.hero-orbit{position:absolute;right:-35px;top:-104px;color:#91ebc235;font-size:360px;line-height:1;pointer-events:none}
.btn{border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;gap:14px;border-radius:12px;font-size:14px;font-weight:750;padding:12px 20px;transition:transform .15s,background .15s;min-height:44px}
.btn:hover:not(:disabled){transform:translateY(-1px)}.btn-primary{background:var(--accent);color:#0b1720}.btn-primary:hover{background:#affadd}
.btn-secondary{background:var(--surface2);color:var(--ink);border-color:var(--line)}.btn-danger{background:#321f31;color:var(--red);border-color:#69465a}
.btn-large{padding:15px 28px;min-width:200px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:20px 0}
.stat,.panel{border:1px solid var(--line);background:var(--surface);border-radius:18px}
.stat{padding:22px 24px;display:flex;flex-direction:column;gap:3px}
.stat-label{color:var(--muted);font-size:13px}.stat strong{font-size:34px;line-height:1.35;letter-spacing:-.03em}.stat small{color:var(--muted);font-size:12px}
.main-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.panel{padding:28px}
.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:25px}
.panel h2{font-size:22px;letter-spacing:-.025em;margin:4px 0 0}.muted,.hint{color:var(--muted)}.muted{font-size:13px}.hint{font-size:12px;margin:16px 0 0}
.domain-bars{display:flex;flex-direction:column;gap:19px}.domain-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;font-size:13px;font-weight:650}
.domain-value{color:var(--muted);font-variant-numeric:tabular-nums}.bar-track{height:9px;border-radius:9px;overflow:hidden;background:#29344d}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--purple),var(--accent));border-radius:9px}
.trend-chart{height:224px;display:flex;align-items:center;justify-content:center;position:relative}
.trend-chart svg{width:100%;height:100%;overflow:visible}
.empty{color:var(--muted);text-align:center;font-size:14px;padding:30px 15px}
.notice{display:flex;gap:14px;margin:20px 0 40px;background:#19283a;border:1px solid #315169;border-radius:14px;color:#bdccdc;padding:18px 20px;font-size:13px}
.notice strong{color:var(--ink)}.notice-icon{font-size:21px;color:var(--accent)}.notice-compact{display:block;margin:23px 0 0;text-align:left}
.setup-panel{max-width:850px;margin:auto;padding:40px}
.setup-panel h1{margin:12px 0 12px}.lead{font-size:15px;max-width:630px}
.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:30px 0}
.mode{display:flex;flex-direction:column;gap:8px;background:#111b31;border:2px solid var(--line);border-radius:16px;padding:22px;cursor:pointer;transition:border-color .2s}
.mode.is-selected{border-color:var(--accent);background:#1c3040}.mode input{accent-color:var(--accent);align-self:flex-end}
.mode-symbol{font-size:30px;color:var(--accent)}.mode strong{font-size:19px}.mode span:not(.mode-symbol){font-size:13px;color:var(--muted)}.mode small{color:var(--muted)}
.hidden{display:none!important}
.test-panel{max-width:800px;margin:auto;padding:36px}
.test-topline,.test-actions{display:flex;justify-content:space-between;align-items:center;gap:14px}
.test-topline{color:var(--muted);font-size:13px;margin-bottom:14px}.time{font-variant-numeric:tabular-nums}
.progress-track{height:7px;background:#303a55;border-radius:8px;overflow:hidden;margin-bottom:28px}.progress-fill{height:100%;background:var(--accent);transition:width .2s}
.domain-chip{display:inline-block;font-size:12px;letter-spacing:.02em;border-radius:30px;padding:6px 12px;background:#243a4a;color:var(--accent);margin-bottom:18px;font-weight:700}
.question-prompt{font-size:clamp(23px,3.4vw,31px);line-height:1.28;letter-spacing:-.02em;margin:0 0 8px}
.answer-list{display:grid;gap:12px;margin:30px 0}.answer{width:100%;text-align:left;padding:16px 18px;border-radius:12px;background:#1b2740;border:1px solid #34425c;color:var(--ink);font-weight:650;transition:background .15s,border-color .15s}
.answer:hover:not(:disabled){border-color:#94e5c1;background:#263a4c}
.answer.is-correct{border-color:var(--accent);background:#1c4038;color:#c8f8e3}.answer.is-wrong{border-color:var(--red);background:#492936}
.feedback{padding:14px 16px;border-radius:12px;background:#28364a;color:var(--ink);font-size:14px;margin-bottom:20px}
.feedback.good{border:1px solid #4f9c80}.feedback.bad{border:1px solid #ac6876}
.test-actions{padding-top:14px;border-top:1px solid var(--line)}
.memory-presentation{display:flex;align-items:center;justify-content:center;min-height:180px;border:1px dashed #5a7394;border-radius:14px;background:#1d2e44;margin:25px 0;font-variant-numeric:tabular-nums;font-weight:800;font-size:clamp(32px,7vw,57px);letter-spacing:.2em;color:var(--accent);text-align:center}
.memory-input{display:block;width:100%;background:#1c2944;border:2px solid #455575;border-radius:12px;padding:16px 18px;color:white;letter-spacing:.1em;font-size:24px;max-width:350px;margin-bottom:15px}
.result-panel{max-width:740px;margin:auto;text-align:center;padding:48px 32px}.result-mark{font-size:38px;color:var(--accent)}
.result-panel h2{font-size:30px}.result-big{font-size:clamp(68px,10vw,110px);color:var(--accent);font-weight:850;letter-spacing:-.07em;line-height:1.3}
.result-breakdown{margin:35px auto;text-align:left;max-width:540px}.result-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:24px}
.history-heading{display:flex;justify-content:space-between}.history-heading h1{margin:8px 0 7px}
.history-list{display:flex;flex-direction:column}.history-row{display:grid;grid-template-columns:1fr auto auto;gap:20px;align-items:center;padding:18px 6px;border-bottom:1px solid var(--line)}
.history-row:last-child{border-bottom:0}.history-row strong{display:block;font-size:15px}.history-row span{font-size:13px;color:var(--muted)}.history-row .score{font-size:22px;color:var(--accent);font-weight:800}.history-row button{border:1px solid var(--line);background:var(--surface2);color:var(--muted);padding:8px 12px;border-radius:9px}
.history-details{grid-column:1/-1;background:#1c2b41;border-radius:10px;padding:14px 18px;font-size:13px;color:var(--muted)}
.history-actions{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0 45px}
footer{padding:30px 0 35px;border-top:1px solid var(--line);color:#8190ab;font-size:11px;letter-spacing:.03em;text-align:center}footer span{padding:0 7px}
@media(max-width:700px){.app-shell{padding:0 15px}.topbar{padding:20px 0}.header-badge{font-size:10px}.tabs{gap:20px;margin-bottom:22px}.hero{padding:28px 24px;min-height:310px}.hero-orbit{font-size:240px;right:-105px;top:-10px}.hero p{position:relative}.hero h1{position:relative}.main-grid{grid-template-columns:1fr}.stats{gap:8px}.stat{padding:14px 11px}.stat-label{font-size:11px}.stat strong{font-size:26px}.stat small{font-size:10px}.panel{padding:21px}.mode-grid{grid-template-columns:1fr}.setup-panel{padding:26px 22px}.test-panel{padding:26px 20px}.result-panel{padding:36px 20px}.history-row{grid-template-columns:1fr auto;gap:11px}.history-row button{grid-column:1/-1;justify-self:start}.history-details{grid-column:1/-1}.test-actions{flex-wrap:wrap}.test-actions .btn{flex:1}.history-actions .btn{flex:1}footer{line-height:1.8}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}