/* GDF Docs — shared stylesheet for every page under /docs.
   Light, high-contrast, built for reading and citation.
   New doc pages: link this file, use .doc-wrap + the section/table classes. */

:root{
  --paper:#FFFFFF;
  --ink:#17130E;
  --ink-dim:rgba(23,19,14,.76);
  --ink-soft:rgba(23,19,14,.52);
  --rule:rgba(23,19,14,.12);
  --rule-soft:rgba(23,19,14,.07);
  --panel:#FAF8F4;
  --orange:#F58A1E;
  --orange-ink:#A85405;      /* orange as text on white — contrast-safe */
  --board:#17130E;
  --bright:#FFB24D;
  --wrap:820px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:80px}
html,body{background:var(--paper);overscroll-behavior-y:none}
body{overflow-x:hidden;color:var(--ink-dim);font-family:"DM Sans",system-ui,sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
::selection{background:rgba(245,138,30,.25);color:var(--ink)}
*{scrollbar-width:thin;scrollbar-color:rgba(23,19,14,.25) transparent}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:rgba(23,19,14,.22);border-radius:4px}
::-webkit-scrollbar-track{background:transparent}

h1,h2,h3,h4{font-family:"Syne",system-ui,sans-serif;color:var(--ink);letter-spacing:-.005em}
h1{font-size:clamp(26px,3.6vw,38px);line-height:1.18;font-weight:800}
h2{font-size:clamp(19px,2.4vw,24px);line-height:1.28;font-weight:700}
h3{font-size:16.5px;line-height:1.4;font-weight:700}
a{color:inherit}
.mono{font-family:"DM Mono",monospace}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ── header ── */
header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--rule)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;height:58px;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:9px;font-family:"Syne";font-weight:800;font-size:15px;color:var(--ink);text-decoration:none;white-space:nowrap}
.logo img{width:22px;height:22px;display:block}
.logo b{color:var(--orange)}
.logo .seg{font-family:"DM Mono",monospace;font-size:10.5px;font-weight:400;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);border-left:1px solid var(--rule);margin-left:2px;padding-left:11px}
.nav-back{font-family:"DM Mono",monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);text-decoration:none;white-space:nowrap}
.nav-back:hover{color:var(--ink)}

/* ── page head ── */
.doc-head{padding:52px 0 26px;border-bottom:2px solid var(--ink);margin-bottom:30px}
.eyebrow{font-family:"DM Mono",monospace;font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--orange-ink);margin-bottom:11px}
.doc-head p.lede{margin-top:14px;max-width:64ch;font-size:17px}
.stamp{font-family:"DM Mono",monospace;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-top:16px;display:flex;gap:14px;flex-wrap:wrap}
.stamp b{color:var(--ink);font-weight:500}

/* ── hub index ── */
.groups{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:6px 0 40px}
@media(max-width:680px){.groups{grid-template-columns:1fr}}
.group{border:1px solid var(--rule);border-top:2px solid var(--orange);border-radius:6px;background:var(--panel);padding:20px 22px;min-width:0}
.group h2{font-family:"DM Mono",monospace;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--orange-ink);font-weight:500;margin-bottom:12px}
.group h2 .tag{color:var(--ink-soft);letter-spacing:.1em}
.group ul{list-style:none}
.group li{padding:6px 0;border-bottom:1px solid var(--rule-soft);font-size:14.5px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 12px;min-width:0}
.group li > *{min-width:0;overflow-wrap:break-word}
.group li:last-child{border-bottom:0}
.group a{color:var(--ink);text-decoration:none;border-bottom:1px solid rgba(23,19,14,.22)}
.group a:hover{border-color:var(--orange);color:var(--orange-ink)}
.soon{font-family:"DM Mono",monospace;font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);white-space:nowrap}

/* ── article body ── */
.sec{padding:34px 0 0;scroll-margin-top:80px}
.sec + .sec{border-top:1px solid var(--rule-soft);margin-top:10px}
.sec h2{margin-bottom:14px}
.sec h2 .n{font-family:"DM Mono",monospace;color:var(--orange-ink);font-size:.72em;margin-right:10px;letter-spacing:.08em}
.sec h3{margin:22px 0 8px}
.sec p{margin-top:12px;max-width:68ch}
.sec p:first-of-type{margin-top:0}
.sec strong{color:var(--ink);font-weight:600}
.sec ul.plain{list-style:none;margin-top:12px;max-width:68ch}
.sec ul.plain li{padding:7px 0 7px 18px;position:relative;border-bottom:1px solid var(--rule-soft);font-size:15px}
.sec ul.plain li:last-child{border-bottom:0}
.sec ul.plain li::before{content:"";position:absolute;left:0;top:16px;width:6px;height:1.5px;background:var(--orange)}
.sec ul.plain li b{color:var(--ink);font-weight:600}

/* ── tables ── */
.tbl-scroll{overflow-x:auto;margin-top:16px;border:1px solid var(--rule);border-radius:6px}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:460px}
thead th{background:var(--panel);font-family:"DM Mono",monospace;font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);text-align:left;padding:11px 14px;border-bottom:1px solid var(--rule);font-weight:500;white-space:nowrap}
tbody td{padding:11px 14px;border-bottom:1px solid var(--rule-soft);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
td.num,th.num{font-family:"DM Mono",monospace;white-space:nowrap;color:var(--ink)}
td.band{font-family:"DM Mono",monospace;color:var(--ink);font-weight:500;white-space:nowrap}

/* ── callouts ── */
.note{border:1px solid var(--rule);border-left:3px solid var(--orange);border-radius:5px;background:var(--panel);padding:18px 22px;margin-top:18px}
.note p{margin-top:8px;font-size:14.5px}
.note p:first-of-type{margin-top:0}
.note .eyebrow{margin-bottom:8px}
.note.quiet{border-left-color:rgba(23,19,14,.3)}

/* ── citation block ── */
.cite{background:var(--board);color:#CFC7B6;border-radius:6px;padding:18px 20px;margin-top:16px;font-family:"DM Mono",monospace;font-size:13px;line-height:1.65;overflow-x:auto}
.cite b{color:#F4F0E8;font-weight:500}
.cite .u{color:var(--bright)}

/* ── empty-state / pending ── */
.pending{font-family:"DM Mono",monospace;font-size:12.5px;letter-spacing:.04em;color:var(--ink-soft);background:var(--panel);border:1px dashed var(--rule);border-radius:5px;padding:16px 18px;margin-top:16px}

/* ── version history ── */
.vrow{display:grid;grid-template-columns:150px 1fr;gap:14px;padding:11px 0;border-bottom:1px solid var(--rule-soft);font-size:14.5px}
.vrow:last-child{border-bottom:0}
.vrow .v{font-family:"DM Mono",monospace;font-size:12px;color:var(--orange-ink);letter-spacing:.06em;padding-top:2px}
@media(max-width:560px){.vrow{grid-template-columns:1fr;gap:2px}}

/* ── footer ── */
footer{border-top:1px solid var(--rule);margin-top:52px;padding:26px 0 40px;font-family:"DM Mono",monospace;font-size:10px;color:var(--ink-soft);letter-spacing:.06em}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.foot a{color:var(--ink-soft);text-decoration:none}
.foot a:hover{color:var(--orange-ink)}

:focus-visible{outline:2px solid var(--orange-ink);outline-offset:3px}
@media(max-width:430px){.nav{gap:10px}.logo{font-size:14px}.logo .seg{display:none}}
@media(max-width:360px){.nav-back{display:none}}