* { box-sizing:border-box; }
:root { --bg:#0A0E17; --card:#131A27; --ink:#F2F5FA; --muted:#8E9AB0; --accent:#3D7BFF; --accent-soft:#6FA0FF; --red:#EF4444; --line:#222C3E; color-scheme:dark; }
html { background:#070A11; }
body { margin:0; min-height:100vh; color:var(--ink); font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:
    radial-gradient(55vmax 55vmax at 88% 6%, rgba(61,123,255,.22), transparent 70%),
    radial-gradient(45vmax 45vmax at 8% 96%, rgba(239,68,68,.12), transparent 70%),
    linear-gradient(#0D1322, #0A0E17 55%, #070A11);
  background-attachment:fixed; }
main { max-width:760px; margin:0 auto; padding:40px 20px 48px; }
.brand { font-size:15px; font-weight:600; letter-spacing:.04em; text-transform:uppercase; }
.brand a { color:var(--accent-soft); text-decoration:none; display:inline-flex; align-items:center; gap:10px; }
.brand img { width:32px; height:32px; border-radius:8px; display:block; }
h1 { font-size:clamp(28px,6vw,38px); line-height:1.15; margin:12px 0 4px; color:#fff; }
.meta { color:var(--muted); margin:0 0 28px; }
h2 { font-size:20px; margin:34px 0 8px; color:#fff; }
h3 { font-size:16px; margin:20px 0 4px; }
p, li { margin:0 0 10px; }
ul { padding-left:22px; margin:0 0 12px; }
a { color:var(--accent-soft); }
a:focus-visible { outline:2px solid var(--red); outline-offset:3px; border-radius:4px; }
.summary, .note { background:linear-gradient(135deg, #16213A, #131A27); border:1px solid var(--line); border-left:4px solid var(--red); border-radius:16px; padding:14px 18px; box-shadow:0 10px 30px rgba(61,123,255,.12); }
.summary ul { margin:6px 0 0; }
.table-wrap { overflow-x:auto; margin:8px 0 14px; }
table { width:100%; border-collapse:collapse; font-size:15px; min-width:520px; }
th, td { text-align:left; vertical-align:top; border-bottom:1px solid var(--line); padding:8px 10px 8px 0; }
th { color:var(--muted); font-weight:600; }
.btn { display:inline-block; background:var(--accent); color:#fff; text-decoration:none; font-weight:700; padding:13px 26px; border-radius:14px; box-shadow:0 8px 26px rgba(61,123,255,.35); }
.btn:hover { filter:brightness(1.08); }
footer { border-top:1px solid var(--line); margin-top:40px; padding-top:18px; color:var(--muted); font-size:14px; }