:root{--bg:#080b10;--card:#111820;--line:#1f2a37;--text:#e8eef6;--muted:#8a9ab0;--green:#34d399;--amber:#fbbf24;--red:#f87171}
*{box-sizing:border-box;margin:0;padding:0}
body{background:radial-gradient(1200px 700px at 50% -12%,#13212e 0%,var(--bg) 55%) fixed;color:var(--text);font:15px/1.55 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased;padding:0 16px 64px;min-height:100vh}
header.site{max-width:960px;margin:0 auto;padding:22px 0;display:flex;justify-content:space-between;align-items:center}
header.site .brand{font-weight:700;font-size:20px;letter-spacing:-.3px;color:var(--text);text-decoration:none}
header.site .brand span{color:var(--green)}
header.site nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-size:14px}
header.site nav a:hover,header.site nav a[aria-current]{color:var(--green)}
main{max-width:960px;margin:0 auto}
h1{font-size:30px;letter-spacing:-.8px;margin-bottom:10px}
h2{font-size:18px;letter-spacing:-.3px;margin-bottom:10px}
.lede{color:var(--muted);margin-bottom:26px;max-width:620px}
.card{background:linear-gradient(180deg,var(--card),#151d27);border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:20px}
form.card{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form.card .field{display:flex;flex-direction:column;gap:6px}
form.card button{grid-column:span 2}
label{font-size:11.5px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}
input,select{background:#0b1117;border:1px solid var(--line);color:var(--text);border-radius:10px;padding:11px 13px;font-size:14.5px;font-family:inherit;outline:none}
input:focus,select:focus{border-color:#2f6b57;box-shadow:0 0 0 3px #34d3991f}
button.primary{font-family:inherit;cursor:pointer;border-radius:10px;font-size:14.5px;font-weight:700;background:linear-gradient(145deg,#34d399,#059669);color:#04140e;border:none;padding:13px 18px;box-shadow:0 10px 24px -12px #34d39999}
button.secondary{font-family:inherit;cursor:pointer;border-radius:10px;font-size:14px;font-weight:600;background:#0d141c;border:1px solid var(--line);color:var(--text);padding:9px 14px;margin-top:14px}
button.link{background:none;border:none;color:var(--muted);font-size:12px;cursor:pointer;margin-left:12px;font-family:inherit}
.result .big{font-size:40px;font-weight:750;letter-spacing:-1.5px;margin:6px 0}
.result h3{font-size:15px;color:var(--muted);font-weight:600;margin-bottom:6px}
.result .row{display:flex;gap:22px;margin-top:14px;flex-wrap:wrap}
.result .row>div{display:flex;flex-direction:column}
.result .row span{font-size:11.5px;color:#5d6d82;text-transform:uppercase}
.result .row b{font-size:15px}
.muted{color:var(--muted);font-size:13.5px}
.banner{border-radius:14px;padding:18px;margin-bottom:16px}
.banner.warn{background:#332508;border:1px solid #6b4d0e;color:var(--amber)}
.banner p{color:var(--muted);margin-top:8px;font-size:13.5px}
.verdict{border-radius:14px;padding:16px 18px;margin-bottom:16px;border:1px solid var(--line)}
.verdict strong{font-size:15px;display:block;margin-bottom:4px}
.verdict p{font-size:13.5px;color:var(--muted)}
.t-great{background:#0d3b2b;border-color:#1a6b50}.t-great strong{color:#5eead4}
.t-good{background:#0f2e22;border-color:#1d5943}.t-good strong{color:var(--green)}
.t-fair{background:#0f2035;border-color:#1e4a6e}.t-fair strong{color:#7dd3fc}
.t-high{background:#332508;border-color:#6b4d0e}.t-high strong{color:var(--amber)}
.t-bad{background:#3a1414;border-color:#7a2626}.t-bad strong{color:var(--red)}
.history{list-style:none;display:flex;flex-direction:column;gap:8px}
.history li{font-size:13.5px;color:var(--muted);padding:8px 12px;background:#0b1117;border-radius:8px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin-top:8px}
.tile{display:block;padding:18px;background:var(--card);border:1px solid var(--line);border-radius:14px;text-decoration:none;color:var(--text)}
.tile h3{font-size:16px;margin-bottom:6px}
.tile p{font-size:13px;color:var(--muted)}
.tile.disabled{opacity:.45;pointer-events:none}
footer.site{max-width:960px;margin:40px auto 0;text-align:center;color:var(--muted);font-size:12.5px}
@media(max-width:640px){form.card{grid-template-columns:1fr}form.card button{grid-column:span 1}}