@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{color:#14213d;background:#f6f7fb;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input,textarea{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;padding:32px;background:radial-gradient(circle at 15% 10%,rgba(79,70,229,.25),transparent 30rem),radial-gradient(circle at 85% 0%,rgba(16,185,129,.18),transparent 24rem),linear-gradient(135deg,#f8fafc,#eef2ff 52%,#fff)}.topbar{max-width:1180px;margin:0 auto 22px;display:flex;align-items:center;justify-content:space-between;gap:16px}.logo{display:inline-flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:900;letter-spacing:-.04em;color:#111827}.logo-mark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;background:#4f46e5;box-shadow:0 14px 34px #4f46e552}.logo-mark svg{width:24px;height:24px;fill:#fff}.topbar-right{display:flex;align-items:center;gap:12px}.leaderboard-button{border:1px solid #c7d2fe;background:#4f46e5;color:#fff;border-radius:999px;padding:10px 20px;font-size:.9rem;font-weight:800;transition:background .2s,transform .15s}.leaderboard-button:hover{background:#4338ca;transform:translateY(-1px)}.event-pill{border:1px solid #c7d2fe;background:#eef2ffd9;color:#4338ca;border-radius:999px;padding:10px 14px;font-size:.9rem;font-weight:900}.hero{display:flex;justify-content:space-between;gap:24px;align-items:center;max-width:1180px;margin:0 auto 24px}.hero h1{margin:0;font-size:clamp(2.2rem,5vw,4.6rem);letter-spacing:-.06em}.hero-copy{max-width:660px;color:#526079;font-size:1.1rem;line-height:1.7}.hero-copy-block{max-width:780px}.challenge-card,.main-card,.side-panel{border:1px solid rgba(255,255,255,.78);background:#ffffffd1;box-shadow:0 24px 80px 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18px 45px #4f46e538}.mission-card .step-label{color:#c7d2fe}.mission-card strong{display:block;font-size:1.35rem;line-height:1.25}.mission-card p{margin:10px 0 0;color:#e0e7ff;line-height:1.55}.stack{display:flex;flex-direction:column;gap:22px}h2,h3{margin:0;letter-spacing:-.03em}h2{font-size:clamp(1.8rem,4vw,2.8rem)}.muted{color:#64748b;line-height:1.6}.two-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}label{display:flex;flex-direction:column;gap:8px;color:#334155;font-weight:700}input,textarea,select{width:100%;border:1px solid #d8dee9;background:#fff;color:#111827;border-radius:16px;padding:14px 16px;outline:none;transition:border .2s,box-shadow .2s;font-family:inherit;font-size:inherit}select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' 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.2s}.primary-button{background:linear-gradient(135deg,#7c3aed,#2563eb)}.danger-button{background:linear-gradient(135deg,#ef4444,#f97316)}.primary-button:hover,.danger-button:hover{transform:translateY(-1px)}.primary-button:disabled{cursor:not-allowed;opacity:.6;transform:none}.alert{max-width:1180px;margin:0 auto 18px;border:1px solid #fed7aa;background:#fff7ed;color:#9a3412;border-radius:18px;padding:14px 18px;font-weight:700}.alert.compact{margin:0}.session-screen,.analysis{min-height:560px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;text-align:center}.session-header{width:100%;display:flex;justify-content:space-between;align-items:center;gap:18px;text-align:left}.timer,.pill{display:inline-flex;align-items:center;width:fit-content;border-radius:999px;padding:10px 14px;background:#eef2ff;color:#4338ca;font-weight:800;transition:background .3s,color .3s}.timer-urgent{background:#fef2f2;color:#dc2626;animation:pulse .8s ease-in-out infinite 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at 90% 0%,rgba(16,185,129,.28),transparent 16rem),linear-gradient(135deg,#111827,#312e81);color:#fff}.score-card .muted{color:#cbd5e1}.score{margin:18px 0;font-size:clamp(3rem,10vw,6rem);font-weight:900;letter-spacing:-.08em}.criterion{display:flex;flex-direction:column;gap:8px}.criteria-note{margin:0;border:1px solid #c7d2fe;background:#eef2ff;color:#4338ca;border-radius:16px;padding:12px 14px;font-weight:800}.criterion span{color:#7c3aed;font-size:1.35rem;font-weight:900}.feedback-list{border:1px solid #e2e8f0;background:#fff;border-radius:22px;padding:20px}.feedback-list ul{margin:12px 0 0;padding-left:20px;color:#475569;line-height:1.7}.leaderboard{display:flex;flex-direction:column;gap:18px}.filters{display:flex;flex-wrap:wrap;gap:8px}.filters button{border:1px solid #d8dee9;background:#fff;border-radius:999px;padding:8px 12px;color:#475569;font-weight:800}.filters button.active{border-color:#7c3aed;background:#7c3aed;color:#fff}.ranking{display:flex;flex-direction:column;gap:12px}.rank-row{display:grid;width:100%;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:14px;border-radius:18px;background:#fff;border:1px solid #e2e8f0;color:inherit;text-align:left;transition:transform .2s,border .2s,box-shadow .2s}.rank-row:first-of-type{border-color:#fbbf24;background:linear-gradient(135deg,#fffbeb,#fff)}.rank-row:hover{transform:translateY(-1px);border-color:#a5b4fc;box-shadow:0 14px 30px #4f46e51a}.rank-row:disabled{cursor:wait;opacity:.7;transform:none}.rank{display:grid;place-items:center;min-width:42px;height:42px;border-radius:14px;background:#f5f3ff;color:#6d28d9;font-weight:900}.rank-row p{margin:4px 0 0;color:#64748b;font-size:.9rem;line-height:1.35}.full-leaderboard{max-width:960px;margin:0 auto;display:flex;flex-direction:column;gap:32px}.full-leaderboard-header{display:flex;justify-content:space-between;align-items:center;gap:16px}.full-leaderboard-header h1{font-size:2.4rem;letter-spacing:-.03em;margin:4px 0 0}.full-leaderboard-live{display:flex;align-items:center;gap:8px;color:#64748b;font-weight:600;font-size:.9rem}.live-dot{width:10px;height:10px;border-radius:50%;background:#22c55e;animation:pulse 1.5s ease-in-out infinite alternate;box-shadow:0 0 8px #22c55e80}.filters-center{justify-content:center}.full-leaderboard-empty{text-align:center;padding:80px 20px;color:#94a3b8;font-size:1.15rem}.podium{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:end}.podium-card{display:flex;flex-direction:column;align-items:center;gap:8px;padding:28px 20px;border-radius:24px;background:#fff;border:2px solid #e2e8f0;text-align:center;transition:transform .2s}.podium-1{border-color:#fbbf24;background:linear-gradient(160deg,#fffbeb,#fff);box-shadow:0 20px 50px #fbbf242e;transform:scale(1.06);order:2}.podium-2{border-color:#cbd5e1;background:linear-gradient(160deg,#f8fafc,#fff);box-shadow:0 14px 34px #64748b1a;order:1}.podium-3{border-color:#d6bcab;background:linear-gradient(160deg,#fdf4ef,#fff);box-shadow:0 14px 34px #b48c6e1a;order:3}.podium-rank{display:grid;place-items:center;width:48px;height:48px;border-radius:16px;background:#f5f3ff;color:#6d28d9;font-weight:900;font-size:1.2rem}.podium-1 .podium-rank{background:#fef3c7;color:#b45309;font-size:1.4rem;width:56px;height:56px}.podium-name{font-size:1.15rem}.podium-1 .podium-name{font-size:1.35rem}.podium-score{font-size:2rem;font-weight:900;color:#4f46e5}.podium-1 .podium-score{font-size:2.6rem;color:#b45309}.podium-meta{margin:0;color:#64748b;font-size:.85rem;line-height:1.35}.full-ranking{display:flex;flex-direction:column;gap:10px}.full-rank-row{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;padding:16px 20px;border-radius:18px;background:#fff;border:1px solid #e2e8f0;font-size:1.05rem}.full-rank-row p{margin:4px 0 0;color:#64748b;font-size:.9rem}@keyframes pulse{0%{transform:scale(1)}to{transform:scale(1.04)}}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:900px){.app-shell{padding:18px}.hero,.grid,.two-columns,.difficulty-grid,.criteria-grid,.choice-grid,.choice-grid-five{grid-template-columns:1fr}.hero{flex-direction:column}.session-header{flex-direction:column;align-items:flex-start}.full-leaderboard-header{flex-direction:column;text-align:center}.podium{grid-template-columns:1fr;gap:14px}.podium-1,.podium-2,.podium-3{order:unset}.podium-1{transform:none}}