:root{--ink:#102a43;--muted:#627d98;--line:#d9e2ec;--canvas:#f7fafc;--teal:#0b6e69;--mint:#dcf3ee;--amber:#ef9b36;--correct:#147d64;--wrong:#c44747}*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.app-shell{min-height:100vh;max-width:1600px;margin:auto;background:#fff;box-shadow:0 0 70px rgba(16,42,67,.06)}.topbar{height:76px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 clamp(20px,4vw,62px);gap:28px}.brand{font-size:22px;font-weight:800;letter-spacing:-.8px;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:9px}.brand-mark{display:grid;place-items:center;width:29px;height:29px;color:#fff;background:var(--teal);border-radius:8px;font-size:16px}.city-switcher{border-left:1px solid var(--line);padding-left:26px;display:flex;align-items:center;gap:7px;font-size:14px;font-weight:700}.pin{font-size:19px;color:var(--teal)}.city-switcher select{appearance:none;border:0;background:transparent;color:var(--ink);font:700 14px inherit;padding:4px 20px 4px 0;cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 10px) 52%,calc(100% - 5px) 52%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}.progress-link{margin-left:auto;background:none;border:0;color:var(--muted);font-weight:700;font-size:14px;cursor:pointer}.progress-link span{color:var(--teal);margin-left:5px}.quiz-layout{min-height:calc(100vh - 154px);display:grid;grid-template-columns:minmax(340px,40%) 1fr}.quiz-panel{padding:clamp(36px,6vw,85px) clamp(26px,5vw,80px);display:flex;flex-direction:column;border-right:1px solid var(--line)}.mode-row{font-size:13px;color:var(--teal);font-weight:800;display:flex;gap:8px;align-items:center}.mode-dot{height:8px;width:8px;border-radius:50%;background:var(--teal)}.eyebrow{font-size:11px;letter-spacing:1.3px;font-weight:800;color:var(--muted);margin:35px 0 11px}.quiz-panel h1{font-size:clamp(30px,3.1vw,47px);line-height:1.07;letter-spacing:-1.8px;margin:0;max-width:420px}.hint{color:var(--muted);font-size:15px;line-height:1.55;max-width:390px;margin:18px 0 31px}.answer-grid{display:grid;gap:11px}.answer{width:100%;border:1px solid var(--line);border-radius:12px;background:white;min-height:59px;padding:0 17px;display:flex;align-items:center;text-align:left;gap:13px;color:var(--ink);font:700 15px inherit;cursor:pointer;transition:.16s ease}.answer:hover{border-color:var(--teal);transform:translateY(-1px);box-shadow:0 5px 13px rgba(16,42,67,.08)}.answer-key{border:1px solid var(--line);width:24px;height:24px;display:grid;place-items:center;border-radius:6px;font-size:12px;color:var(--muted)}.answer.correct{background:#e5f6f0;border-color:var(--correct);color:#075d49}.answer.wrong{background:#fff1f1;border-color:var(--wrong);color:#9f2c2c}.answer.correct .answer-key,.answer.wrong .answer-key{border-color:currentColor;color:currentColor}.skip-button{align-self:flex-start;margin-top:18px;padding:0;background:none;border:0;color:var(--muted);font:700 13px inherit;cursor:pointer;text-decoration:underline;text-underline-offset:4px}.session-footer{margin-top:auto;padding-top:30px;color:var(--muted);font-size:13px;display:flex;gap:7px}.map-section{position:relative;background:#dcebe5;min-height:480px}#map{height:100%;width:100%;min-height:480px}.map-caption{position:absolute;z-index:500;bottom:25px;left:25px;background:rgba(255,255,255,.94);box-shadow:0 5px 18px rgba(16,42,67,.12);padding:11px 14px;border-radius:9px;font-size:13px;font-weight:700;pointer-events:none}.recenter{position:absolute;z-index:500;top:20px;right:20px;background:white;border:1px solid var(--line);border-radius:9px;width:42px;height:42px;font-size:22px;color:var(--ink);box-shadow:0 4px 13px rgba(16,42,67,.12);cursor:pointer}.bottom-strip{height:78px;border-top:1px solid var(--line);display:flex;align-items:center;padding:0 clamp(20px,4vw,62px);gap:17px}.bottom-strip>div:not(.strip-divider){display:flex;align-items:baseline;gap:7px;font-size:13px;color:var(--muted)}.strip-label{font-size:10px;letter-spacing:1px;font-weight:800;color:var(--muted)}.bottom-strip strong{font-size:16px;color:var(--ink)}.strip-divider{height:25px;width:1px;background:var(--line)}.confidence{margin-left:auto}.meter{height:5px;width:98px;background:#e6edf2;border-radius:10px;overflow:hidden}.meter span{height:100%;display:block;width:0;background:var(--teal);border-radius:inherit;transition:width .35s}.confidence strong{min-width:100px;font-size:12px!important}dialog{border:0;border-radius:18px;width:min(420px,calc(100vw - 32px));padding:36px;background:#fff;color:var(--ink);box-shadow:0 25px 80px rgba(16,42,67,.28)}dialog::backdrop{background:rgba(16,42,67,.42)}dialog h2{font-size:35px;margin:0}.dialog-close{position:absolute;right:18px;top:13px;border:0;background:none;font-size:28px;color:var(--muted);cursor:pointer}.progress-ring{width:142px;height:142px;border-radius:50%;background:conic-gradient(var(--teal) var(--percent,0%),#e7eef3 0);display:grid;place-items:center;margin:25px auto}.progress-ring:before{content:"";position:absolute;width:112px;height:112px;background:white;border-radius:50%}.progress-ring span{z-index:1;font-size:28px;font-weight:800}.stat-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px}.stat-cards div{border:1px solid var(--line);border-radius:11px;padding:15px;display:flex;flex-direction:column;gap:3px}.stat-cards strong{font-size:24px}.stat-cards span{font-size:12px;color:var(--muted)}@media(max-width:760px){.topbar{height:64px;padding:0 18px;gap:14px}.city-switcher{padding-left:14px}.progress-link{font-size:0}.progress-link span{font-size:14px}.quiz-layout{grid-template-columns:1fr}.quiz-panel{padding:31px 24px 28px;border-right:0}.quiz-panel h1{font-size:35px}.session-footer{margin-top:28px}.map-section{min-height:430px}#map{min-height:430px}.bottom-strip{height:auto;min-height:70px;padding:16px 20px;gap:12px}.confidence{display:none}.strip-divider{margin:0 2px}}