:root{--bg:#F6F8FB;--text:#0F1B3D;--muted:#4B5878;--card:#fff;--border:#E1E7F0;--accent:#0B63C5;--brand:#1B2A6B;color-scheme:light}
@media(prefers-color-scheme:dark){:root{--bg:#0B1226;--text:#EAF0FF;--muted:#A8B3CF;--card:#131C38;--border:#25304F;--accent:#5BA2F5;--brand:#8BB7F0;color-scheme:dark}}
*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.65;padding:env(safe-area-inset-top,0px) 0 env(safe-area-inset-bottom,0px)}
.wrap{max-width:780px;margin:0 auto;padding:0 20px}
header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--text);text-decoration:none}
.back{color:var(--accent);font-weight:600;text-decoration:none}
nav.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0 18px}
nav.tabs a{padding:8px 14px;border:1px solid var(--border);border-radius:99px;color:var(--muted);text-decoration:none;font-size:14px;font-weight:600;background:var(--card)}
nav.tabs a[aria-current]{background:var(--accent);color:#fff;border-color:var(--accent)}
h1{font-size:clamp(28px,6vw,38px);line-height:1.15;margin:6px 0 4px}
.meta{color:var(--muted);margin:0 0 22px;font-size:14px}
.card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:22px;margin:0 0 16px}
h2{font-size:19px;margin:0 0 8px}
p,li{color:var(--muted)}
p{margin:0 0 10px}
ul{margin:6px 0 10px;padding-left:22px}
a{color:var(--accent)}
.note{border-left:4px solid var(--accent);padding:10px 14px;background:var(--card);border-radius:0 12px 12px 0;margin:0 0 16px;color:var(--muted);font-size:14px}
mark.todo{background:#FFE27A;color:#3a2e00;padding:1px 6px;border-radius:6px;font-weight:700}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border);vertical-align:top;color:var(--muted)}
th{color:var(--text)}
.tblwrap{overflow-x:auto}
button.link{background:none;border:0;padding:0;font:inherit;color:var(--accent);text-decoration:underline;cursor:pointer}
footer{padding:28px 0 48px;text-align:center;color:var(--muted);font-size:14px}