:root{--bg:#eef2f7;--bg-grad:radial-gradient(60% 40% at 85% 0%,#d9e2ff 0%,transparent 70%),radial-gradient(50% 35% at 0% 100%,#e6dcff 0%,transparent 70%);--card:#fff;--ink:#14213d;--muted:#5b6b86;--line:#c9d4e3;--pen:#c8102e;--on-pen:#fff;color-scheme:light;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0e1626;--bg-grad:radial-gradient(60% 40% at 85% 0%,#1d2a5a 0%,transparent 70%),radial-gradient(50% 35% at 0% 100%,#2a1d52 0%,transparent 70%);--card:#16223a;--ink:#e8eefc;--muted:#9aaccb;--line:#2b3b5c;--pen:#ff5a6e;--on-pen:#14213d;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0e1626;--bg-grad:radial-gradient(60% 40% at 85% 0%,#1d2a5a 0%,transparent 70%),radial-gradient(50% 35% at 0% 100%,#2a1d52 0%,transparent 70%);--card:#16223a;--ink:#e8eefc;--muted:#9aaccb;--line:#2b3b5c;--pen:#ff5a6e;--on-pen:#14213d;color-scheme:dark}
*{box-sizing:border-box}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;min-height:100vh;background-color:var(--bg);background-image:var(--bg-grad);background-attachment:fixed;color:var(--ink);font-family:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.5}
main{max-width:560px;margin:0 auto;padding:28px 16px 40px}
h1{font-size:2.2rem;font-weight:800;letter-spacing:-.02em;margin:0 0 4px}
.sub{margin:0 0 22px;color:var(--muted)}
.tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px;margin-bottom:12px}
.tabs button{flex:0 0 auto;font:inherit;font-weight:600;padding:10px 16px;border:2px solid var(--ink);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer}
.tabs button[aria-selected="true"]{background:var(--ink);color:var(--bg)}
button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--pen);outline-offset:2px}
.card{background:var(--card);border:1px solid var(--line);border-radius:30px;padding:26px 22px;box-shadow:0 16px 40px rgba(20,33,61,.14)}
.card[hidden]{display:none}
h2{font-size:1.25rem;margin:0 0 14px}
label{display:block;font-weight:600;font-size:.95rem;margin:14px 0 6px}
input,select{width:100%;font:inherit;font-size:1rem;padding:12px;border:2px solid var(--line);border-radius:16px;background:var(--bg);color:var(--ink)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.out{margin-top:22px;border-top:2px dashed var(--line);padding-top:16px}
.out div{display:flex;justify-content:space-between;gap:12px;padding:4px 0;color:var(--muted)}
.out b{color:var(--ink);font-variant-numeric:tabular-nums}
.out .big{display:block;margin-top:8px;font-size:2rem;font-weight:800;color:var(--pen);line-height:1.15}
.note{font-size:.85rem;color:var(--muted);margin-top:14px}
footer{margin-top:28px;font-size:.85rem;color:var(--muted)}
@media (prefers-reduced-motion:no-preference){.tabs button{transition:background .15s,color .15s}}

a{color:inherit}
.brand{text-decoration:none;display:inline-block}
.links{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.links a{padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:var(--card);text-decoration:none;font-weight:600;font-size:.9rem}
.links a[aria-current="page"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.seo{margin-top:26px}.seo h2{font-size:1.1rem;margin:0 0 8px}.seo p{margin:0;color:var(--muted)}
.grid{display:grid;gap:12px}
.tile{display:block;padding:18px;border:1px solid var(--line);border-radius:22px;background:var(--card);text-decoration:none}
.tile b{display:block;font-size:1.1rem;margin-bottom:2px}.tile span{color:var(--muted);font-size:.95rem}