/* Veldris guideline-site chrome (site pages only, not shipped to consumers) */
body{margin:0;background:var(--surface-page);color:var(--text-body);font-family:var(--font-ui);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent-text);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent-strong)}
.site-head{position:sticky;top:0;background:var(--surface-page);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;gap:20px;padding:0 28px;height:58px;z-index:20}
.site-head .brand{display:flex;gap:10px;align-items:center;color:var(--text-display);text-decoration:none;font-weight:600;font-size:16px}
.site-head .brand svg{width:22px;height:22px;color:var(--accent)}
.site-head .brand .ds{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);font-weight:400;border-left:1px solid var(--border-subtle);padding-left:12px;margin-left:2px}
.site-nav{display:flex;gap:2px;flex:1;justify-content:flex-end;flex-wrap:wrap}
.site-nav a{padding:6px 10px;border-radius:var(--radius-m);font-size:13.5px;color:var(--text-muted);text-decoration:none}
.site-nav a:hover{background:var(--surface-sunken);color:var(--text-body)}
.site-nav a.on{color:var(--text-display);background:var(--surface-sunken)}
.theme-btn{width:32px;height:32px;border-radius:var(--radius-m);border:1px solid var(--border-subtle);background:none;color:var(--text-muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.theme-btn:hover{background:var(--surface-sunken);color:var(--text-body)}
.wrap{max-width:1080px;margin:0 auto;padding:0 28px 90px}
.hero{padding:72px 0 8px}
.hero h1{font-family:var(--font-display);font-weight:500;font-size:clamp(40px,5.6vw,62px);line-height:var(--leading-display);letter-spacing:var(--tracking-display);color:var(--text-display);margin:14px 0 18px;text-wrap:balance}
.lead{font-size:18px;line-height:1.6;color:var(--text-body);max-width:62ch}
.kicker{font-family:var(--font-mono);font-size:11px;letter-spacing:var(--tracking-mono-label);text-transform:uppercase;color:var(--text-muted)}
.sec{border-top:1px solid var(--border-strong);padding-top:14px;margin-top:64px}
.sec h2{font-size:25px;font-weight:600;color:var(--text-display);margin:6px 0 14px;letter-spacing:-0.01em}
h3{font-size:16px;font-weight:600;color:var(--text-display);margin:26px 0 8px}
.prose{max-width:66ch}
.prose p{margin:0 0 14px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid5{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.panel{background:var(--surface-card);border:1px solid var(--border-subtle);border-radius:var(--radius-l);padding:20px;box-shadow:var(--shadow-1)}
.panel .kicker{display:block;margin-bottom:8px}
pre{background:var(--surface-sunken);border:1px solid var(--border-subtle);border-radius:var(--radius-m);padding:14px 16px;overflow:auto;font-family:var(--font-mono);font-size:12.5px;line-height:1.6;color:var(--text-body)}
code{font-family:var(--font-mono);font-size:.92em;background:var(--surface-sunken);border:1px solid var(--border-subtle);border-radius:3px;padding:1px 5px}
pre code{background:none;border:none;padding:0}
table.spec{width:100%;border-collapse:collapse;font-size:13.5px}
table.spec th{font-family:var(--font-mono);font-size:11px;letter-spacing:var(--tracking-mono-label);text-transform:uppercase;font-weight:500;color:var(--text-muted);text-align:left;padding:8px 12px;border-bottom:1px solid var(--border-strong)}
table.spec td{padding:9px 12px;border-bottom:1px solid var(--border-subtle);vertical-align:top}
table.spec td.mono, .mono{font-family:var(--font-mono);font-size:12.5px}
.do-dont{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.do-dont .col{border-radius:var(--radius-l);border:1px solid var(--border-subtle);padding:16px 20px;background:var(--surface-card)}
.do-dont .h{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;padding-bottom:8px;border-bottom:1px solid var(--border-subtle);margin-bottom:12px}
.do-dont .ok .h{color:var(--success-text)}
.do-dont .no .h{color:var(--danger-text)}
.do-dont p{margin:0 0 10px;font-size:14px}
.site-foot{border-top:1px solid var(--border-subtle);margin-top:80px;padding:22px 28px;display:flex;justify-content:space-between;gap:16px;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--text-faint)}
iframe.demo{width:100%;border:1px solid var(--border-subtle);border-radius:var(--radius-l);background:var(--surface-card)}
/* living layer */
html{scroll-behavior:smooth}
body{transition:background-color .35s var(--ease),color .35s var(--ease)}
.rv{opacity:0;transform:translateY(14px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.rv.in{opacity:1;transform:none}
.panel{transition:transform var(--dur-base) var(--ease),box-shadow var(--dur-base) var(--ease)}
.panel:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.hero{position:relative}
.hero-mark{position:absolute;right:8px;top:44px;width:200px;height:200px;color:var(--text-display);opacity:.06;pointer-events:none}
svg.draw polyline{stroke-dasharray:170;stroke-dashoffset:170;animation:vdraw 1.1s var(--ease) forwards}
svg.draw polyline:nth-child(2){animation-delay:.25s}
@keyframes vdraw{to{stroke-dashoffset:0}}
.vd-toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(8px);background:var(--surface-inverse);color:var(--text-inverse);font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;padding:8px 14px;border-radius:var(--radius-m);box-shadow:var(--shadow-2);opacity:0;transition:opacity .25s var(--ease),transform .25s var(--ease);z-index:99;pointer-events:none}
.vd-toast.show{opacity:1;transform:translateX(-50%)}
.copyable{cursor:pointer;transition:outline-color var(--dur-fast) var(--ease)}
.copyable:hover{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.bars span{transform-origin:bottom;transition:transform .9s var(--ease)}
.rv:not(.in) .bars span{transform:scaleY(0)}
.site-head{transition:box-shadow .25s var(--ease)}
.site-head.scrolled{box-shadow:var(--shadow-1)}
input.vd-filter{height:36px;padding:0 12px;border-radius:var(--radius-m);border:1px solid var(--border-strong);background:var(--surface-card);color:var(--text-body);font-family:var(--font-mono);font-size:13px;width:100%;max-width:340px;margin-bottom:14px}
input.vd-filter:focus-visible{outline:2px solid var(--focus-ring);outline-offset:1px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rv{opacity:1;transform:none;transition:none}.rv:not(.in) .bars span{transform:none}svg.draw polyline{animation:none;stroke-dashoffset:0}.panel:hover{transform:none}}
.burger{display:none;width:32px;height:32px;border-radius:var(--radius-m);border:1px solid var(--border-subtle);background:none;color:var(--text-body);cursor:pointer;align-items:center;justify-content:center;flex:none}
.burger:hover{background:var(--surface-sunken)}
@media (max-width:1080px){
.burger{display:inline-flex}
.site-head{position:sticky}
.site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--surface-page);border-bottom:1px solid var(--border-subtle);flex-direction:column;gap:2px;padding:8px 16px 14px;box-shadow:var(--shadow-2)}
.site-head.nav-open .site-nav{display:flex}
.site-nav a{font-size:15px;padding:10px 10px}
}
@media (max-width:860px){.grid2,.grid3,.do-dont{grid-template-columns:1fr}.grid5{grid-template-columns:repeat(2,1fr)}}
@media (max-width:700px){
.site-head{padding:0 16px;gap:10px}
.site-head .brand{margin-right:auto}
.site-head .brand .ds{display:none}
.wrap{padding:0 18px 60px}
.hero{padding:40px 0 4px}
.hero h1{font-size:clamp(32px,9vw,44px)}
.lead{font-size:16px}
.sec{margin-top:44px}
.sec h2{font-size:21px}
.panel{padding:16px}
pre{font-size:11.5px;padding:12px}
table.spec{display:block;overflow-x:auto}
table.spec th,table.spec td{padding:8px 10px}
.site-foot{flex-direction:column;gap:6px;padding:18px}
}