:root{--ink:#14111f;--muted:#6f6a80;--paper:#fffdf8;--card:#ffffff;--line:rgba(20,17,31,.12);--purple:#6d5dfb;--pink:#ff4fd8;--cyan:#2de2e6;--lime:#ccff33;--orange:#ffb000;--good:#14a86b;--bad:#e54863;--shadow:0 24px 70px rgba(30,24,80,.18);--r:24px}*{box-sizing:border-box}html{min-height:100%;background:#171426}body{min-height:100%;margin:0;color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:radial-gradient(circle at 20% 0%,rgba(255,79,216,.28),transparent 30%),radial-gradient(circle at 85% 10%,rgba(45,226,230,.24),transparent 28%),linear-gradient(135deg,#fff7d6 0%,#efe8ff 42%,#dffbff 100%);overflow-x:hidden}.bg-orb{position:fixed;border-radius:999px;filter:blur(3px);pointer-events:none;z-index:0}.orb-a{width:180px;height:180px;background:rgba(255,79,216,.28);right:-70px;top:130px}.orb-b{width:220px;height:220px;background:rgba(204,255,51,.30);left:-100px;bottom:60px}.app{position:relative;z-index:1;width:min(100%,760px);margin:0 auto;padding:max(16px,env(safe-area-inset-top)) 14px max(24px,env(safe-area-inset-bottom))}.screen{min-height:calc(100svh - 32px);border:1px solid rgba(255,255,255,.62);border-radius:32px;background:rgba(255,255,255,.76);box-shadow:var(--shadow);backdrop-filter:blur(18px);padding:24px 18px}.hidden{display:none!important}.brand-row{display:flex;align-items:center;gap:12px;margin-bottom:24px}.logo-bubble{width:52px;height:52px;border-radius:18px;background:linear-gradient(135deg,var(--purple),var(--pink));color:white;display:grid;place-items:center;font-weight:950;box-shadow:0 14px 30px rgba(109,93,251,.28);transform:rotate(-4deg)}.tiny,.kicker{margin:0 0 6px;font-size:12px;text-transform:uppercase;letter-spacing:.14em;font-weight:900;color:var(--purple)}.muted{margin:0;color:var(--muted);font-size:13px;line-height:1.45}h1,h2,h3{margin:0;color:var(--ink);line-height:1.05}h1{font-size:clamp(38px,10vw,68px);letter-spacing:-.055em;font-weight:950;max-width:11ch}h2{font-size:clamp(28px,7vw,46px);letter-spacing:-.04em;font-weight:950}h3{font-size:18px}.lead{font-size:17px;line-height:1.55;color:#4f4963;margin:18px 0 22px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:22px 0}.stat{padding:14px 10px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.68)}.stat strong{display:block;font-size:23px;letter-spacing:-.04em}.stat span{display:block;margin-top:5px;color:var(--muted);font-size:12px;line-height:1.25}.btn{width:100%;min-height:52px;margin-top:10px;border:0;border-radius:18px;padding:14px 18px;font-weight:900;cursor:pointer;transition:transform .15s ease,filter .2s ease,background .2s ease}.btn:active{transform:translateY(1px) scale(.99)}.btn:focus-visible{outline:3px dashed var(--ink);outline-offset:3px}.primary{background:linear-gradient(135deg,var(--purple),var(--pink));color:white;box-shadow:0 16px 36px rgba(109,93,251,.28)}.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}.flat{background:transparent;color:var(--muted);box-shadow:none}.footnote{font-size:12px;color:var(--muted);line-height:1.4}.rule-cards{display:grid;gap:12px;margin:24px 0}.rule-cards article{padding:16px;border-radius:22px;background:#fff;border:1px solid var(--line)}.rule-cards strong{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:12px;background:var(--lime);margin-bottom:10px}.rule-cards p{color:var(--muted);line-height:1.45}.quiz-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.score-chip{flex:none;border-radius:999px;padding:10px 13px;background:var(--ink);color:white;font-weight:950}.progress-track{height:10px;border-radius:999px;background:rgba(20,17,31,.10);overflow:hidden;margin:20px 0 8px}.progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--purple),var(--pink));border-radius:999px;transition:width .25s ease}.question-card{margin-top:16px;padding:18px;border-radius:26px;background:rgba(255,255,255,.86);border:1px solid var(--line)}.prompt{font-size:18px;line-height:1.45;font-weight:850;margin:0 0 14px}.stimulus{padding:14px;border-radius:18px;background:linear-gradient(135deg,rgba(109,93,251,.10),rgba(45,226,230,.12));border:1px solid rgba(109,93,251,.18);line-height:1.55;color:#332e49}.answers{display:grid;gap:10px;margin-top:15px}.answer-btn{text-align:left;min-height:54px;padding:14px;border:2px solid transparent;border-radius:18px;background:#fff;color:var(--ink);font-weight:850;line-height:1.35;box-shadow:0 8px 18px rgba(20,17,31,.06)}.answer-btn.correct{border-color:var(--good);background:#eafff5;color:#08764a}.answer-btn.wrong{border-color:var(--bad);background:#fff0f4;color:#a31532}.action-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.hint-box,.feedback{margin-top:14px;border-radius:20px;padding:15px;line-height:1.5}.hint-box{background:#fff7ce;border:1px solid rgba(255,176,0,.35);color:#6f4a00}.feedback.good{background:#eafff5;border:1px solid rgba(20,168,107,.25);color:#08764a}.feedback.bad{background:#fff0f4;border:1px solid rgba(229,72,99,.25);color:#a31532}.feedback.neutral{background:#f5f2ff;border:1px solid rgba(109,93,251,.22);color:#42367d}.wide{width:100%}.big-score{display:flex;align-items:baseline;gap:8px;margin:18px 0;color:var(--purple);font-size:clamp(78px,23vw,120px);font-weight:1000;letter-spacing:-.08em}.big-score small{font-size:25px;color:var(--muted);letter-spacing:0}.breakdown{display:grid;gap:10px;margin:20px 0}.break-card,.review-item{padding:14px;border-radius:20px;background:#fff;border:1px solid var(--line)}.break-card strong{display:block}.break-card span{color:var(--muted);font-size:13px}.next-box{margin:20px 0;padding:18px;border-radius:26px;background:#171426;color:rgba(255,255,255,.86);box-shadow:0 20px 48px rgba(23,20,38,.26)}.next-box h3{color:white}.next-box li{margin:8px 0;line-height:1.45}.review-list{display:grid;gap:12px;margin:22px 0}.review-item p{margin:7px 0;line-height:1.45}.ok{color:var(--good);font-weight:900}.no{color:var(--bad);font-weight:900}code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}@media(min-width:700px){.app{padding-block:28px}.screen{padding:42px}.btn{width:auto;min-width:220px;margin-right:8px}.flat{min-width:auto}.rule-cards{grid-template-columns:repeat(3,1fr)}}@media(max-width:390px){.stats-grid{grid-template-columns:1fr}.quiz-head{display:block}.score-chip{display:inline-block;margin-top:12px}}

/* Ranking + timed scoring version */
.name-box{display:grid;gap:8px;margin:18px 0;padding:14px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.72)}
.name-box span{font-size:12px;text-transform:uppercase;letter-spacing:.12em;font-weight:900;color:var(--purple)}
.name-box input{width:100%;border:0;outline:0;border-radius:16px;background:white;padding:14px 16px;font:inherit;font-weight:850;color:var(--ink);box-shadow:inset 0 0 0 1px rgba(20,17,31,.10)}
.score-stack{display:grid;gap:8px;justify-items:end}.points-chip{display:inline-flex;align-items:center;gap:4px;border-radius:999px;padding:8px 11px;background:rgba(204,255,51,.50);color:#302900;font-weight:950;font-size:13px;box-shadow:inset 0 0 0 1px rgba(20,17,31,.08)}
.timer-box{margin:14px 0 10px;padding:12px 14px;border-radius:20px;background:rgba(255,255,255,.78);border:1px solid var(--line);box-shadow:0 12px 30px rgba(30,24,80,.08)}
.timer-box>div:first-child{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:9px}.timer-box span{font-size:12px;text-transform:uppercase;letter-spacing:.12em;font-weight:900;color:var(--muted)}.timer-box strong{font-size:22px}.timer-track{height:10px;border-radius:999px;background:rgba(20,17,31,.10);overflow:hidden}.timer-fill{height:100%;width:100%;border-radius:999px;background:linear-gradient(90deg,var(--lime),var(--cyan),var(--purple));transition:width .25s linear}.timer-box.urgent .timer-fill{background:linear-gradient(90deg,var(--orange),var(--bad))}.timer-box.urgent strong{color:var(--bad)}
.result-metrics{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0 16px}.result-metrics div{border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.72);padding:14px;text-align:center}.result-metrics strong{display:block;font-size:24px;line-height:1;color:var(--purple)}.result-metrics span{display:block;margin-top:5px;color:var(--muted);font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
.leader-preview{margin-top:18px;padding:16px;border-radius:24px;background:rgba(255,255,255,.58);border:1px solid var(--line)}.leader-preview h3{font-size:18px;margin-bottom:10px}.leader-list{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:10px}.leader-list li{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.78)}.leader-list .rank{display:grid;place-items:center;min-width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--purple),var(--pink));color:white;font-weight:950}.leader-list strong{display:block}.leader-list small{display:block;margin-top:3px;color:var(--muted);line-height:1.3}.leader-list b{font-size:18px;color:var(--ink)}.leader-list.mini{margin-top:0}.leader-list.mini li{grid-template-columns:auto 1fr auto;padding:10px}.leaderboard-list{margin:16px 0 18px}
@media (max-width:520px){.result-metrics{grid-template-columns:1fr}.leader-list li{grid-template-columns:auto 1fr}.leader-list b{grid-column:2;justify-self:start}.score-stack{justify-items:stretch}.points-chip,.score-chip{justify-content:center}}