:root{--bg:#f3f5f4;--surface:#fff;--ink:#15211d;--muted:#5b6b65;--line:#dfe6e2;--accent:#0d6e57;--accent-soft:#e1f1ec;--warn-soft:#fbefd9;color-scheme:light}
@media (prefers-color-scheme:dark){:root{--bg:#0f1513;--surface:#18211e;--ink:#e6eeea;--muted:#93a59e;--line:#2a3632;--accent:#4fc7a4;--accent-soft:#183a31;--warn-soft:#3a2d14;color-scheme:dark}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px max(16px,calc(50% - 360px));background:#0d6e57;color:#fff;flex-wrap:wrap}
.top nav{display:flex;gap:14px;align-items:center}
.top a{color:#fff;text-decoration:none;font-size:.95rem}
.brand{font-weight:800;font-size:1.35rem!important;letter-spacing:-.02em}.brand span{color:#f0b04a}
main{max-width:720px;margin:0 auto;padding:20px 16px 40px}
h1{font-size:1.75rem;line-height:1.2;letter-spacing:-.02em;margin:8px 0 12px}
h2{font-size:1.2rem;margin:28px 0 8px}
.lead{font-size:1.08rem;color:var(--muted)}
.crumbs{font-size:.85rem;color:var(--muted)}.crumbs a{color:var(--muted)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;margin:20px 0}
.card h2{margin-top:0}
.calc label{display:block;font-weight:600;font-size:.92rem;margin:10px 0 4px}
.calc input[inputmode]{width:100%;font:inherit;font-size:1.3rem;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font-variant-numeric:tabular-nums}
.calc .chk{display:flex;gap:8px;align-items:center;font-weight:400}
.res{display:grid;grid-template-columns:1fr auto;gap:6px 12px;margin:16px 0 8px;font-variant-numeric:tabular-nums}
.res dt{color:var(--muted)}.res dd{margin:0;text-align:right;font-weight:600}
.res .tot{font-size:1.15rem;color:var(--ink);font-weight:800;border-top:1px solid var(--line);padding-top:8px}
.btn{display:block;text-align:center;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;padding:13px 16px;border-radius:12px;margin-top:12px}
@media (prefers-color-scheme:dark){.btn{color:#08201a}}
.btn.sm{display:inline-block;padding:6px 12px;margin:0;border-radius:999px;background:#fff;color:#0d6e57!important;font-weight:700}
.small{font-size:.85rem}.muted{color:var(--muted)}.center{text-align:center}
.note{background:var(--warn-soft);border-radius:10px;padding:10px 12px;font-size:.95rem}
.tbl{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums;font-size:.95rem;background:var(--surface);border-radius:12px;overflow:hidden}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:right}th:first-child,td:first-child{text-align:left}
th{background:var(--accent-soft);font-size:.85rem}
details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin:8px 0}
summary{font-weight:600;cursor:pointer}
.links{columns:2;padding-left:18px}
.grid{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.grid a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px;text-decoration:none;color:var(--ink)}
.grid span{display:block;font-size:.85rem;color:var(--muted)}
.partners ul{list-style:none;padding:0;margin:0}
.partners li{padding:10px 0;border-top:1px solid var(--line);display:flex;flex-direction:column}
.disc{font-size:.82rem;color:var(--muted);margin-top:32px}
footer{text-align:center;font-size:.85rem;color:var(--muted);padding:20px 16px 32px}
footer a{color:var(--muted)}