:root{--font-display: "Marcellus", "Times New Roman", serif;--font-body: "Jost", "Avenir Next", "Segoe UI", sans-serif;--font-mono: "IBM Plex Mono", "SFMono-Regular", monospace;--radius: 6px;--maxw: 980px}:root[data-theme=dark]{--bg: #0d0e10;--surface: #15171a;--surface-raised: #1b1e22;--line: rgba(237, 232, 220, .1);--text: #ede9df;--muted: #97928a;--accent: #c8a45d;--accent-ink: #0d0e10;--correct: #6faa85;--wrong: #c46a61;--dial-tick: rgba(237, 232, 220, .35);--dial-track: rgba(237, 232, 220, .12)}:root[data-theme=light]{--bg: #f2f1ec;--surface: #faf9f6;--surface-raised: #ffffff;--line: rgba(23, 24, 26, .12);--text: #191a1c;--muted: #6d685e;--accent: #9a7a3c;--accent-ink: #ffffff;--correct: #3d7d59;--wrong: #a84a40;--dial-tick: rgba(23, 24, 26, .35);--dial-track: rgba(23, 24, 26, .1)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);font-weight:300;font-size:17px;line-height:1.6;transition:background .3s ease,color .3s ease}button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;padding:0;cursor:pointer}button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.app{min-height:100vh;display:flex;flex-direction:column}.site-header{display:flex;justify-content:space-between;align-items:center;padding:22px clamp(18px,4vw,44px);border-bottom:1px solid var(--line)}.wordmark{font-family:var(--font-display);font-size:19px;letter-spacing:.32em;color:var(--text)}.wordmark:hover{color:var(--accent)}.theme-toggle{letter-spacing:.08em}.site-footer{margin-top:auto;padding:28px clamp(18px,4vw,44px);border-top:1px solid var(--line);color:var(--muted);font-size:13px;letter-spacing:.06em;text-align:center}.eyebrow{font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--accent);margin:0 0 14px}.btn{display:inline-block;padding:13px 30px;border-radius:var(--radius);letter-spacing:.12em;text-transform:uppercase;font-size:13px;font-weight:400;transition:transform .15s ease,opacity .15s ease,background .15s ease}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent);color:var(--accent-ink)}.btn-primary:disabled{opacity:.35;cursor:not-allowed}.btn-secondary{border:1px solid var(--line);color:var(--text)}.btn-link{color:var(--muted);font-size:14px;letter-spacing:.06em}.btn-link:hover{color:var(--accent)}.pill{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px}.pill-topic{text-transform:uppercase}.home{width:100%;max-width:var(--maxw);margin:0 auto;padding:clamp(40px,8vh,90px) clamp(18px,4vw,44px) 70px}.hero-title{font-family:var(--font-display);font-weight:400;font-size:clamp(38px,7vw,68px);line-height:1.08;margin:0 0 20px;letter-spacing:.01em}.hero-sub{max-width:560px;color:var(--muted);margin:0 0 34px}.hero-stats{display:flex;align-items:center;gap:22px;margin-bottom:10px}.hero-stats-text p{margin:2px 0;color:var(--muted);font-size:15px}.stat-number{font-family:var(--font-mono);color:var(--text);font-size:17px}.categories{margin-top:clamp(30px,6vh,60px);display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:14px}.category-card{text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px 20px;display:flex;flex-direction:column;gap:7px;transition:border-color .18s ease,transform .18s ease,background .18s ease}.category-card:hover{border-color:var(--accent);transform:translateY(-2px);background:var(--surface-raised)}.category-card-daily{border-color:var(--accent);background:linear-gradient(var(--surface),var(--surface)) padding-box,linear-gradient(135deg,var(--accent),transparent 70%) border-box}.category-name{font-family:var(--font-display);font-size:22px;letter-spacing:.04em}.category-tagline{color:var(--muted);font-size:14.5px;line-height:1.45}.category-meta{margin-top:8px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--accent)}.quiz{width:100%;max-width:720px;margin:0 auto;padding:28px clamp(18px,4vw,44px) 70px}.quiz-header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px}.quiz-progress{font-family:var(--font-mono);font-size:13px;letter-spacing:.18em;color:var(--accent)}.quiz-category{font-family:var(--font-display);letter-spacing:.08em;font-size:15px;color:var(--muted)}.quiz-progress-track{height:2px;background:var(--line);border-radius:2px;margin-bottom:clamp(26px,5vh,46px);overflow:hidden}.quiz-progress-fill{height:100%;background:var(--accent);transition:width .5s cubic-bezier(.22,1,.36,1)}.question-card{animation:rise .42s cubic-bezier(.22,1,.36,1)}@keyframes rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion: reduce){.question-card{animation:none}.quiz-progress-fill,.score-dial circle{transition:none!important}}.question-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.question-prompt{font-family:var(--font-display);font-weight:400;font-size:clamp(23px,4vw,30px);line-height:1.3;margin:0 0 26px}.question-image{width:100%;border-radius:var(--radius);margin-bottom:24px}.choices{display:flex;flex-direction:column;gap:10px;margin-bottom:26px}.choice{text-align:left;padding:15px 18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);transition:border-color .15s ease,background .15s ease;line-height:1.45}.choice:hover:not(:disabled){border-color:var(--accent)}.choice-selected{border-color:var(--accent);background:var(--surface-raised)}.choice-correct{border-color:var(--correct);color:var(--correct)}.choice-wrong{border-color:var(--wrong);color:var(--wrong)}.choice:disabled{cursor:default;opacity:.85}.choice-correct:disabled,.choice-wrong:disabled{opacity:1}.text-answer{width:100%;padding:15px 18px;margin-bottom:26px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);color:var(--text);font-family:var(--font-mono);font-size:16px;letter-spacing:.04em}.text-answer-correct{border-color:var(--correct);color:var(--correct)}.text-answer-wrong{border-color:var(--wrong);color:var(--wrong)}.reveal{border-left:2px solid var(--line);padding:4px 0 4px 22px;animation:rise .42s cubic-bezier(.22,1,.36,1)}.reveal-correct{border-left-color:var(--correct)}.reveal-wrong{border-left-color:var(--wrong)}.reveal-verdict{font-family:var(--font-display);font-size:21px;margin:0 0 10px}.reveal-correct .reveal-verdict{color:var(--correct)}.reveal-wrong .reveal-verdict{color:var(--wrong)}.reveal-answer{font-family:var(--font-body);font-size:17px;color:var(--text)}.reveal-explanation{margin:0 0 14px;color:var(--text)}.reveal-funfact{margin:0 0 20px;color:var(--muted);font-style:italic;font-size:15.5px}.reveal .btn{margin-top:6px}.summary{text-align:center;padding-top:clamp(30px,8vh,80px);display:flex;flex-direction:column;align-items:center}.summary-title{font-family:var(--font-display);font-weight:400;font-size:clamp(32px,6vw,48px);margin:0 0 30px}.summary-sub{max-width:440px;color:var(--muted);margin:26px 0 30px}.quiz-empty{color:var(--muted);margin:40px 0 20px}.score-dial-value{font-family:var(--font-mono);font-size:17px;fill:var(--text)}.score-dial-label{font-family:var(--font-body);font-size:7px;letter-spacing:.3em;fill:var(--muted)}