/* ============================================================================
   THE GOLDEN RECORD : site styles for The Engraving
   Mirrors the design system (claude.ai/artifact/FRkuCRwiG4G7sLRcenHUjv).
   Dark theme for brand pages, light theme for reading pages. Gold is line work;
   tier colours mark evidence and nothing else.
   ============================================================================ */
:root{
  --tg-surface:#0A1A3F; --tg-surface-deep:#071330; --tg-rule:#23346A;
  --tg-text:#FFFFFF; --tg-text-muted:#C9D4F2; --tg-text-subtle:#9FB4E8;
  --tg-gold:#F0C14B; --tg-action:#F0C14B; --tg-on-action:#071330; --tg-focus:#F0C14B;
  --tg-conf:#2E7D4F; --tg-ann:#C9971F; --tg-spec:#6E7DA0;
  --tg-conf-ink:#FFFFFF; --tg-ann-ink:#FFFFFF; --tg-spec-ink:#FFFFFF;
  --tg-display:'Unbounded','Arial Black',system-ui,sans-serif;
  --tg-text-font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --tg-wrap:1240px;
}
[data-theme="light"]{
  --tg-surface:#FFFFFF; --tg-surface-deep:#F4F6FB; --tg-rule:#DCE2F0;
  --tg-text:#0F1426; --tg-text-muted:#4A5377; --tg-text-subtle:#5A6385;
  --tg-gold:#C99A1E; --tg-action:#0A1A3F; --tg-on-action:#FFFFFF; --tg-focus:#0A1A3F;
  --tg-conf-ink:#276B43; --tg-ann-ink:#8A5D00; --tg-spec-ink:#5F646E;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.tg{margin:0;background:var(--tg-surface);color:var(--tg-text);font-family:var(--tg-text-font);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
.tg a{color:inherit}
.tg :focus-visible{outline:2px solid var(--tg-focus);outline-offset:2px}
.tg-wrap{max-width:var(--tg-wrap);margin:0 auto;padding:0 32px}
.tg-skip{position:absolute;left:-9999px}.tg-skip:focus{left:16px;top:16px;background:var(--tg-action);color:var(--tg-on-action);padding:10px 16px;z-index:200}

/* type */
.tg-eyebrow{font-family:var(--tg-display);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--tg-gold);margin:0}
.tg-display-xl{font-family:var(--tg-display);font-weight:800;font-size:clamp(36px,5.2vw,62px);line-height:1.04;margin:0;letter-spacing:-.01em}
.tg-display-l{font-family:var(--tg-display);font-weight:800;font-size:clamp(30px,4vw,44px);line-height:1.08;margin:0}
.tg-display-m{font-family:var(--tg-display);font-weight:600;font-size:clamp(22px,2.6vw,28px);line-height:1.2;margin:0}
.tg-display-s{font-family:var(--tg-display);font-weight:600;font-size:20px;line-height:1.25;margin:0}
.tg-lead{font-size:clamp(17px,1.6vw,20px);line-height:1.55;color:var(--tg-text-muted);margin:0;max-width:46ch}
.tg-small{font-size:14px;color:var(--tg-text-subtle)}

/* buttons */
.tg-actions{display:flex;flex-wrap:wrap;gap:14px}
.tg-btn{display:inline-flex;align-items:center;white-space:nowrap;min-height:48px;padding:0 24px;border-radius:999px;font:600 15px/1 var(--tg-text-font);text-decoration:none;border:1.5px solid transparent;cursor:pointer}
.tg-btn-primary{background:var(--tg-action);color:var(--tg-on-action)}
.tg-btn-secondary{border-color:var(--tg-gold);color:var(--tg-gold)}
[data-theme="light"] .tg-btn-secondary{border-color:var(--tg-text);color:var(--tg-text)}
.tg-btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.tg-link{color:var(--tg-text);text-decoration:underline;text-decoration-color:var(--tg-gold);text-underline-offset:4px;font-weight:600}

/* header */
.tg-header{color:#FFFFFF;background:var(--tg-surface-deep);border-bottom:1px solid var(--tg-rule);position:sticky;top:0;z-index:100}
.tg-header-in{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}
.tg-brand{display:flex;align-items:center;gap:12px;font-family:var(--tg-display);font-weight:600;font-size:17px;text-decoration:none;white-space:nowrap}
.tg-brand svg{width:34px;height:34px;flex:none}
.tg-nav{display:flex;flex-wrap:nowrap;gap:18px;font-size:14px;white-space:nowrap;color:var(--tg-text-muted)}
.tg-nav a{text-decoration:none}.tg-nav a:hover{color:var(--tg-text)}
.tg-mnav{display:none}
@media (max-width:1240px){
  .tg-nav,.tg-header .tg-btn{display:none}
  .tg-mnav{display:block;position:relative}
  .tg-mnav summary{list-style:none;cursor:pointer;min-height:44px;display:flex;align-items:center;padding:0 16px;border:1.5px solid var(--tg-gold);border-radius:999px;color:var(--tg-gold);font-weight:600}
  .tg-mnav summary::-webkit-details-marker{display:none}
  .tg-mnav nav{position:absolute;right:0;top:54px;background:var(--tg-surface-deep);border:1px solid var(--tg-rule);padding:16px 22px;display:flex;flex-direction:column;gap:14px;min-width:220px}
  .tg-mnav nav a{text-decoration:none}
}

/* sections */
.tg-section{padding:80px 0}
.tg-band-deep{background:var(--tg-surface-deep)}
.tg-head{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.tg-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:900px){.tg-grid-3{grid-template-columns:1fr}}

/* hero */
.tg-hero{padding:80px 0 88px}
.tg-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:56px;align-items:center}
.tg-hero-copy{display:flex;flex-direction:column;gap:24px}
.tg-hero-art svg{width:100%;max-width:520px;height:auto;display:block;margin-left:auto}
.tg-newest{font-size:15px;color:var(--tg-text-muted);text-decoration:none;border-bottom:1px solid var(--tg-rule);align-self:flex-start;padding-bottom:4px}
.tg-newest:hover{color:var(--tg-text);border-color:var(--tg-gold)}
@media (max-width:900px){.tg-hero-grid{grid-template-columns:1fr}.tg-hero-art svg{margin:0 auto;max-width:380px}}

/* plates */
.tg-plate{background:var(--tg-surface-deep);border:1px solid var(--tg-gold);padding:28px;display:flex;flex-direction:column;gap:14px}
.tg-band-deep .tg-plate{background:var(--tg-surface)}
.tg-plate p{margin:0;color:var(--tg-text-muted);line-height:1.55}
.tg-plate .tg-btn{margin-top:auto;align-self:flex-start}
.tg-plate-feature{background:var(--tg-gold)!important;color:#071330;border-color:var(--tg-gold)}
.tg-plate-feature .tg-eyebrow,.tg-plate-feature p{color:#071330}
.tg-plate-feature .tg-btn{background:#071330;color:#FFFFFF}

/* tiers */
.tg-tier{display:inline-flex;align-items:center;gap:10px;font-family:var(--tg-display);font-weight:600;font-size:18px}
.tg-tier svg{width:22px;height:22px;flex:none}

/* lists */
.tg-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--tg-gold)}
.tg-list li{border-bottom:1px solid var(--tg-rule)}
.tg-list a{display:grid;grid-template-columns:130px minmax(0,1fr) auto;gap:20px;align-items:baseline;padding:20px 0;text-decoration:none}
.tg-list a:hover .tg-list-title{text-decoration:underline;text-decoration-color:var(--tg-gold);text-underline-offset:5px}
.tg-list-date{font-size:14px;color:var(--tg-text-subtle)}
.tg-list-title{font-size:clamp(18px,2vw,23px);font-weight:600;line-height:1.3}
.tg-list-kind{font-size:13px;color:var(--tg-text-subtle);white-space:nowrap}
@media (max-width:700px){.tg-list a{grid-template-columns:1fr;gap:6px}}

/* founder + letter */
.tg-split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px;align-items:center}
@media (max-width:900px){.tg-split{grid-template-columns:1fr}}
.tg-letter{background:var(--tg-gold);color:#071330}
.tg-letter .tg-lead{color:#071330}
.tg-letter .tg-btn{background:#071330;color:#FFFFFF}

/* footer */
.tg-footer{background:var(--tg-surface-deep);border-top:1px solid var(--tg-rule);padding:56px 0 40px;color:var(--tg-text-muted);font-size:14.5px}
.tg-footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,minmax(0,1fr));gap:32px}
.tg-footer h2{font-family:var(--tg-display);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--tg-gold);font-weight:400;margin:0 0 14px}
.tg-footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.tg-footer a{text-decoration:none}.tg-footer a:hover{color:var(--tg-text)}
.tg-footer-legal{margin-top:40px;padding-top:24px;border-top:1px solid var(--tg-rule);font-size:13px;line-height:1.6;color:var(--tg-text-subtle);display:flex;flex-direction:column;gap:6px}
@media (max-width:900px){.tg-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.tg-footer-grid{grid-template-columns:1fr}}
.tg-footer a{overflow-wrap:anywhere}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}