:root{
  --bg:#07111f;--bg2:#0d1b2d;--card:rgba(17,30,49,.82);--card2:#10233a;
  --text:#f7fbff;--muted:#9fb2c8;--line:rgba(255,255,255,.10);
  --violet:#8b5cf6;--cyan:#22d3ee;--green:#34d399;--red:#fb7185;--yellow:#facc15;
  --shadow:0 24px 70px rgba(0,0,0,.28);--radius:24px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;background:
radial-gradient(circle at 12% 10%,rgba(124,58,237,.20),transparent 34%),
radial-gradient(circle at 88% 5%,rgba(6,182,212,.14),transparent 28%),
linear-gradient(180deg,#07111f,#081523 55%,#06101d);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,input{font:inherit}button{cursor:pointer}.shell{width:min(1160px,calc(100% - 32px));margin:auto}.topbar{display:flex;align-items:center;justify-content:space-between;padding:22px 0}.brand{display:flex;gap:12px;align-items:center;font-weight:900;letter-spacing:-.03em}.brand-mark{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--violet),var(--cyan));box-shadow:0 10px 30px rgba(124,58,237,.3)}.brand small{display:block;color:var(--muted);font-size:11px;letter-spacing:.14em;text-transform:uppercase}.nav-actions{display:flex;gap:10px;align-items:center}.pill,.btn{border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text);border-radius:999px;padding:10px 14px}.btn{border-radius:16px;font-weight:800;padding:13px 18px;transition:.2s transform,.2s background,.2s border}.btn:hover{transform:translateY(-1px);border-color:rgba(255,255,255,.22)}.btn-primary{border:0;background:linear-gradient(135deg,var(--violet),#6d5dfc 50%,var(--cyan));box-shadow:0 12px 32px rgba(92,79,241,.28)}.btn-ghost{background:transparent}.hero{padding:58px 0 28px;display:grid;grid-template-columns:1.25fr .75fr;gap:42px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;border:1px solid rgba(34,211,238,.25);background:rgba(34,211,238,.08);padding:8px 12px;border-radius:999px;color:#c7f6ff;font-weight:700;font-size:13px}.hero h1{font-size:clamp(42px,7vw,82px);line-height:.95;letter-spacing:-.065em;margin:18px 0}.gradient-text{background:linear-gradient(90deg,#fff 10%,#c4b5fd 52%,#67e8f9);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{font-size:18px;line-height:1.65;color:var(--muted);max-width:680px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.micro{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-top:18px}.micro strong{color:var(--text)}.hero-card{background:linear-gradient(160deg,rgba(139,92,246,.18),rgba(14,27,45,.8) 40%,rgba(34,211,238,.08));border:1px solid var(--line);border-radius:34px;padding:24px;box-shadow:var(--shadow);transform:rotate(1.3deg)}.hero-card-inner{border:1px solid var(--line);background:rgba(5,14,25,.55);border-radius:24px;padding:22px}.mini-progress{height:8px;background:rgba(255,255,255,.08);border-radius:99px;overflow:hidden}.mini-progress span{display:block;width:72%;height:100%;background:linear-gradient(90deg,var(--violet),var(--cyan))}.mock-q{font-size:21px;font-weight:800;line-height:1.35;margin:20px 0}.mock-option{padding:13px 14px;border:1px solid var(--line);border-radius:15px;margin:9px 0;color:#d9e6f2}.mock-option.active{border-color:rgba(52,211,153,.5);background:rgba(52,211,153,.09)}.section{padding:42px 0}.section-title{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.section-title h2{font-size:32px;letter-spacing:-.04em;margin:0}.section-title p{color:var(--muted);margin:5px 0 0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.category-card{border:1px solid var(--line);background:var(--card);border-radius:20px;padding:20px;text-align:left;color:var(--text);transition:.2s}.category-card:hover,.category-card.selected{transform:translateY(-2px);border-color:rgba(139,92,246,.55);background:linear-gradient(145deg,rgba(139,92,246,.13),rgba(16,35,58,.9))}.category-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:14px;background:rgba(255,255,255,.07);font-size:22px}.category-card h3{margin:15px 0 4px;font-size:16px}.category-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.play-panel{display:grid;grid-template-columns:1fr 1fr;gap:22px;background:linear-gradient(135deg,rgba(139,92,246,.14),rgba(34,211,238,.06));border:1px solid var(--line);padding:24px;border-radius:28px}.seg{display:flex;gap:8px;flex-wrap:wrap}.seg button{border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--muted);padding:10px 13px;border-radius:12px}.seg button.active{color:#fff;border-color:rgba(34,211,238,.42);background:rgba(34,211,238,.10)}.label{display:block;font-size:12px;color:var(--muted);font-weight:800;text-transform:uppercase;letter-spacing:.12em;margin-bottom:10px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0}.stat{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:16px;padding:14px}.stat b{font-size:20px}.stat small{display:block;color:var(--muted);margin-top:3px}.quiz-wrap{max-width:820px;margin:0 auto;padding:22px 0 60px}.quiz-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.progress{height:10px;background:rgba(255,255,255,.07);border-radius:99px;overflow:hidden;margin:18px 0 28px}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--violet),var(--cyan));transition:width .25s}.quiz-card{border:1px solid var(--line);background:rgba(11,25,42,.92);border-radius:28px;padding:28px;box-shadow:var(--shadow)}.q-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:13px}.quiz-card h2{font-size:clamp(24px,4vw,34px);line-height:1.25;letter-spacing:-.03em;margin:22px 0}.options{display:grid;gap:11px}.option{width:100%;text-align:left;border:1px solid var(--line);background:rgba(255,255,255,.035);color:var(--text);border-radius:17px;padding:16px 18px;font-weight:700;display:flex;gap:12px;align-items:center}.option:hover:not(:disabled){border-color:rgba(139,92,246,.45);background:rgba(139,92,246,.08)}.option .key{width:28px;height:28px;display:grid;place-items:center;border-radius:9px;background:rgba(255,255,255,.07);font-size:12px}.option.correct{border-color:rgba(52,211,153,.55);background:rgba(52,211,153,.10)}.option.wrong{border-color:rgba(251,113,133,.55);background:rgba(251,113,133,.10)}.feedback{margin-top:18px;padding:16px 17px;border-radius:16px;background:rgba(255,255,255,.045);border:1px solid var(--line);line-height:1.6}.feedback b{display:block;margin-bottom:4px}.feedback small{color:#b7c8d8}.quiz-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:22px}.hearts{letter-spacing:3px;color:var(--red)}.result-card{max-width:820px;margin:28px auto 70px;padding:30px;border:1px solid var(--line);background:linear-gradient(150deg,rgba(139,92,246,.15),rgba(10,23,39,.96) 42%,rgba(34,211,238,.06));border-radius:30px;box-shadow:var(--shadow)}.score-orb{width:160px;height:160px;border-radius:50%;display:grid;place-items:center;margin:10px auto 18px;background:conic-gradient(var(--cyan) var(--score),rgba(255,255,255,.08) 0);position:relative}.score-orb:after{content:"";position:absolute;inset:10px;border-radius:50%;background:#0b192a}.score-orb strong{position:relative;z-index:1;font-size:36px}.center{text-align:center}.result-card h1{margin:4px 0 8px;font-size:38px}.review{margin-top:26px;display:grid;gap:10px}.review-item{border:1px solid var(--line);background:rgba(255,255,255,.035);border-radius:16px;padding:14px}.review-item .ok{color:var(--green)}.review-item .no{color:var(--red)}.review-item small{color:var(--muted);display:block;margin-top:5px}.footer{color:var(--muted);font-size:12px;text-align:center;padding:40px 0 55px;border-top:1px solid var(--line)}.notice{padding:12px 14px;border:1px solid rgba(250,204,21,.25);background:rgba(250,204,21,.06);border-radius:14px;color:#f9eeb0;font-size:12px;line-height:1.55}.hide{display:none!important}.daily-badge{font-size:12px;color:#d9f9ff;border:1px solid rgba(34,211,238,.28);padding:6px 9px;border-radius:999px}.achievement{font-size:12px;padding:8px 10px;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:999px}.achievements{display:flex;gap:8px;flex-wrap:wrap}.empty{color:var(--muted);font-size:13px}
@media(max-width:860px){.hero{grid-template-columns:1fr;padding-top:28px}.hero-card{display:none}.grid{grid-template-columns:1fr 1fr}.play-panel{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.shell{width:min(100% - 22px,1160px)}.topbar{padding:15px 0}.brand small,.nav-actions .pill{display:none}.hero h1{font-size:49px}.hero p{font-size:16px}.grid{grid-template-columns:1fr}.section{padding:28px 0}.quiz-card,.result-card{padding:20px;border-radius:22px}.quiz-footer{align-items:stretch;flex-direction:column}.quiz-footer .btn{width:100%}.q-meta{flex-wrap:wrap}.stats{grid-template-columns:1fr 1fr}.score-orb{width:140px;height:140px}}