:root{--bg:#f7f8fc;--card:#fff;--ink:#172033;--muted:#657089;--accent:#5b5ce2;--line:#e5e8f0;--good:#127a4b;--bad:#b42318}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}.wrap{width:min(1120px,92%);margin:auto}.top{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:10}.nav{display:flex;justify-content:space-between;align-items:center;min-height:68px;gap:20px}.nav nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.nav a{text-decoration:none;color:var(--ink)}.brand{font-weight:850;font-size:1.25rem}.btn,button{display:inline-block;border:0;border-radius:10px;background:var(--accent);color:#fff!important;padding:12px 18px;text-decoration:none;font-weight:700;cursor:pointer}.btn.secondary{background:#fff;color:var(--accent)!important;border:1px solid var(--accent)}.btn.small{padding:8px 12px}.hero{padding:82px 0 58px;text-align:center;background:linear-gradient(180deg,#eeefff,transparent)}.hero h1{font-size:clamp(2.3rem,6vw,4.8rem);line-height:1.02;margin:0 auto 18px;max-width:900px}.hero p{font-size:1.2rem;color:var(--muted);max-width:760px;margin:0 auto 26px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 5px 20px rgba(20,30,60,.04)}.section{padding:54px 0}.section h2{font-size:2rem;margin:0 0 10px}.muted{color:var(--muted)}label{display:block;font-weight:700;margin:14px 0 6px}input,select,textarea{width:100%;padding:12px;border:1px solid #ccd2df;border-radius:10px;background:#fff;font:inherit}textarea{min-height:180px}.form-card{max-width:720px;margin:40px auto}.result{white-space:pre-wrap;background:#fbfbfe;border:1px solid var(--line);border-radius:12px;padding:18px;margin-top:18px}.alert{padding:12px 14px;border-radius:10px;margin-top:14px;background:#eef2ff}.alert.error{background:#fff0f0;color:var(--bad)}.alert.success{background:#ecfdf3;color:var(--good)}table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}th,td{padding:12px;text-align:left;border-bottom:1px solid var(--line)}.pill{display:inline-block;padding:4px 9px;border-radius:999px;background:#eef0ff;color:#393ab5;font-size:.85rem}.metric{font-size:2rem;font-weight:800}.progress{height:10px;background:#e9ecf4;border-radius:99px;overflow:hidden}.progress span{display:block;height:100%;background:var(--accent)}footer{padding:42px 0;border-top:1px solid var(--line);background:#fff;margin-top:50px}.footer-grid{display:flex;justify-content:space-between;gap:20px}.center{text-align:center}.tools{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.question{margin:18px 0;padding:16px;border:1px solid var(--line);border-radius:12px;background:#fff}.question label{font-weight:500}.admin-nav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}@media(max-width:800px){.grid{grid-template-columns:1fr}.nav{align-items:flex-start;padding:14px 0;flex-direction:column}.nav nav{gap:10px}.hero{padding-top:50px}.footer-grid{flex-direction:column}}