:root{
  --bone:#F0EDE4;--paper:#FAF8F2;--ink:#1A1A17;--ink-soft:#57564E;--ink-mut:#8A897E;
  --dark:#15140F;--cream:#F2EFE6;--line:rgba(26,26,23,.12);--line-2:rgba(26,26,23,.07);
  --cyan:#3FD9F2;--purple:#B23FE0;--magenta:#E0349C;--orange:#FF9A3F;
  --grad:linear-gradient(90deg,var(--cyan),var(--purple) 38%,var(--magenta) 68%,var(--orange));
  --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bone);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit}
h1,h2,h3,.gr{font-family:'Space Grotesk',sans-serif;font-weight:700;letter-spacing:-.02em;line-height:1.15}
::selection{background:var(--ink);color:var(--bone)}
/* nav */
nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:.4s var(--ease)}
nav.scrolled{background:rgba(240,237,228,.85);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1000px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk';font-weight:700;font-size:19px}
.brand svg{width:26px;height:31px}
.nav-actions{display:flex;align-items:center;gap:12px}
.back{font-family:'Space Grotesk';font-size:14px;font-weight:500;color:var(--ink-soft);display:inline-flex;align-items:center;gap:6px}
.back:hover{color:var(--ink)}.back svg{width:15px;height:15px}
.lang{display:flex;border:1.5px solid var(--line);border-radius:999px;padding:2px;font-family:'Space Grotesk';font-size:12px;font-weight:600}
.lang button{border:0;background:transparent;color:var(--ink-soft);padding:5px 11px;border-radius:999px;cursor:pointer;font-family:inherit;transition:.25s}
.lang button.active{background:var(--ink);color:var(--bone)}
/* doc */
.wrap{max-width:800px;margin:0 auto;padding:132px 24px 40px}
.eyebrow{font-family:'Space Grotesk';font-size:12px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-soft);display:inline-flex;align-items:center;gap:9px;margin-bottom:16px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--grad)}
h1{font-size:clamp(32px,5vw,50px);margin-bottom:12px}
.updated{color:var(--ink-mut);font-size:14px;font-family:'Space Grotesk';margin-bottom:14px}
.disclaimer{background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--magenta);border-radius:12px;padding:16px 20px;font-size:14px;color:var(--ink-soft);margin:22px 0 40px}
.doc h2{font-size:22px;margin:44px 0 14px;padding-top:8px}
.doc h3{font-size:17px;margin:26px 0 8px}
.doc p{color:var(--ink-soft);margin-bottom:14px;font-size:15.5px}
.doc ul{margin:0 0 16px 0;padding-left:0;list-style:none}
.doc li{color:var(--ink-soft);font-size:15.5px;padding:7px 0 7px 26px;position:relative}
.doc li::before{content:"";position:absolute;left:0;top:15px;width:6px;height:6px;border-radius:50%;background:var(--grad)}
.doc a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.doc strong{color:var(--ink);font-weight:600}
.doc .lead{font-size:18px;color:var(--ink);font-weight:300;margin-bottom:20px}
/* AI providers cards */
.prov{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:8px 0 20px}
.prov .p{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.prov .p b{font-family:'Space Grotesk';font-size:15px;display:block;margin-bottom:4px}
.prov .p span{font-size:13.5px;color:var(--ink-soft)}
.ai-badge{display:inline-flex;align-items:center;gap:8px;background:var(--dark);color:var(--cream);border-radius:999px;padding:8px 16px;font-family:'Space Grotesk';font-size:13px;font-weight:500;margin:8px 0 24px}
.ai-badge svg{width:15px;height:15px;color:var(--cyan)}
/* footer */
footer{border-top:1px solid var(--line);margin-top:60px}
.foot{max-width:800px;margin:0 auto;padding:28px 24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;color:var(--ink-mut);font-size:13px;font-family:'Space Grotesk'}
.foot a{margin-left:16px}.foot a:hover{color:var(--ink)}
@media(max-width:560px){.prov{grid-template-columns:1fr}}