:root {
  --paper: #F5F3EE; --raised: #FFFEFB; --ink: #221E17; --ink2: #4A4536; --muted: #8A8271;
  --hair: #E7E2D6; --accent: #5747D2; --accent-tint: #ECE9F9; --band: #17151F; --band-text: #ECEAF3;
  --band-muted: #9A96A9; --band-accent: #A395F4; --warn-tint: #F7EFDC; --warn: #8A6A1F;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'Instrument Sans', -apple-system, 'Segoe UI', system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.65; }
a { color: var(--accent); }
.band { background: linear-gradient(160deg, #17151F 0%, #221D33 68%, #2A2344 100%); color: var(--band-text); padding: 44px 24px 40px; }
.band-inner, main { max-width: 800px; margin: 0 auto; }
.wordmark { font-family: var(--serif); font-size: 20px; color: var(--band-accent); text-decoration: none; }
.wordmark:hover { color: var(--band-text); }
.band h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(32px, 5vw, 44px); line-height: 1.1; margin: 18px 0 8px; letter-spacing: -.01em; }
.band .meta { color: var(--band-muted); font-size: 14px; margin: 0; }
.band .lang { float: right; font-size: 13px; }
.band .lang a { color: var(--band-accent); text-decoration: none; }
main { padding: 32px 24px 64px; }
.summary { background: var(--raised); border: 1px solid var(--hair); border-left: 4px solid var(--accent); border-radius: 10px; padding: 18px 22px; margin: 0 0 32px; }
.summary h2 { margin: 0 0 8px; font-size: 15px; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); }
.summary ul { margin: 0; padding-left: 20px; }
.summary li { margin: 4px 0; }
h2 { font-family: var(--serif); font-weight: 400; font-size: 28px; margin: 40px 0 10px; letter-spacing: -.01em; }
h3 { font-size: 17px; margin: 24px 0 6px; }
p, li { color: var(--ink2); }
p strong, li strong { color: var(--ink); }
.qc { background: var(--warn-tint); border-left: 4px solid var(--warn); border-radius: 6px; padding: 10px 14px; margin: 14px 0; color: var(--ink); font-weight: 600; }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; margin: 14px 0 22px; }
th { text-align: left; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding: 6px 12px 6px 0; border-bottom: 2px solid var(--ink); }
td { padding: 9px 12px 9px 0; border-bottom: 1px solid var(--hair); vertical-align: top; color: var(--ink2); }
.tablewrap { overflow-x: auto; }
.toc { columns: 2; column-gap: 32px; font-size: 14.5px; margin: 0 0 8px; padding-left: 20px; }
.toc li { break-inside: avoid; margin: 2px 0; }
@media (max-width: 640px) { .toc { columns: 1; } }
footer { border-top: 1px solid var(--hair); margin-top: 48px; padding: 24px; text-align: center; color: var(--muted); font-size: 14px; }
footer a { color: var(--accent); text-decoration: none; }