/* terra design system */
:root{
  --paper:#F5F0E8; --paper-2:#EDE6DA; --card:#FBF8F3;
  --ink:#1D1B18; --ink-2:#4A453E; --muted:#7A7268;
  --line:#1D1B1817; --line-2:#1D1B1830;
  --clay:#C4552D; --clay-dark:#A2431F; --clay-soft:#C4552D1A;
  --moss:#3E5641; --moss-soft:#3E56411A; --sand:#E4D3B8;
  --serif:"Fraunces",Georgia,serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --r:14px; --r-lg:22px;
  --shadow:0 1px 2px #1d1b180d,0 8px 24px -12px #1d1b1826;
  --wrap:1120px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit}
::selection{background:var(--sand)}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;border-radius:6px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
@media (max-width:640px){.wrap{padding:0 16px}}

/* type */
h1,h2,h3{font-family:var(--serif);font-weight:500;letter-spacing:-.02em;line-height:1.08;margin:0;font-optical-sizing:auto}
h1{font-size:clamp(42px,6.4vw,76px)}
h2{font-size:clamp(32px,4.2vw,48px)}
h3{font-size:22px;letter-spacing:-.01em;line-height:1.25}
h1 em,h2 em{font-style:italic;color:var(--clay)}
p{margin:0}
.lede{font-size:clamp(17px,1.6vw,20px);color:var(--ink-2);max-width:620px}
.eyebrow{font:500 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--clay)}
.muted{color:var(--muted)}
code,.mono{font-family:var(--mono);font-size:.92em}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 15px/1 var(--sans);
  padding:14px 22px;border-radius:999px;border:1px solid transparent;text-decoration:none;cursor:pointer;
  transition:background .15s,border-color .15s,transform .15s,box-shadow .15s;white-space:nowrap}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:#000;transform:translateY(-1px);box-shadow:var(--shadow)}
.btn-clay{background:var(--clay);color:#fff}
.btn-clay:hover{background:var(--clay-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-sm{padding:10px 16px;font-size:14px}
.btn[disabled]{opacity:.6;cursor:default;transform:none}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:#F5F0E8e6;backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-head.scrolled{border-bottom-color:var(--line)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font:600 21px/1 var(--serif);letter-spacing:-.02em}
.logo svg{width:28px;height:28px}
.nav{display:flex;align-items:center;gap:6px}
.nav a.link{padding:8px 12px;border-radius:8px;text-decoration:none;font-size:15px;color:var(--ink-2)}
.nav a.link:hover,.nav a.link[aria-current="page"]{color:var(--ink);background:var(--paper-2)}
.nav-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer;color:var(--ink)}
@media (max-width:820px){
  .nav-toggle{display:block}
  .nav{position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;padding:12px 16px 18px;
    background:var(--paper);border-bottom:1px solid var(--line);display:none}
  .nav.open{display:flex}
  .nav .btn{margin-top:8px}
}

/* sections */
section{padding:96px 0}
@media (max-width:640px){section{padding:64px 0}}
.section-head{max-width:720px;margin-bottom:48px}
.section-head .eyebrow{display:block;margin-bottom:16px}
.section-head p{margin-top:16px}
.band{background:var(--paper-2)}
.dark{background:var(--ink);color:var(--paper)}
.dark .lede,.dark .muted{color:#C9C1B5}

/* cards and grids */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:900px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.g2,.g3,.g4{grid-template-columns:minmax(0,1fr)}}
@media (max-width:640px){.prose table{display:block;overflow-x:auto}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}
.card h3{margin-bottom:10px}
.card p{color:var(--ink-2);font-size:15px}
.icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--clay-soft);color:var(--clay);margin-bottom:18px}
.icon svg{width:22px;height:22px}
.icon.moss{background:var(--moss-soft);color:var(--moss)}
.pill{display:inline-flex;align-items:center;gap:6px;font:500 12px/1 var(--mono);padding:7px 11px;border-radius:999px;background:var(--paper-2);color:var(--ink-2);border:1px solid var(--line)}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--moss)}

/* code */
.code{background:#1D1B18;color:#EDE6DA;border-radius:var(--r-lg);overflow:hidden;font:13.5px/1.7 var(--mono);box-shadow:var(--shadow)}
.code-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid #ffffff14;color:#9C9387;font-size:12px}
.code-bar .dots{display:flex;gap:6px}.code-bar .dots i{width:10px;height:10px;border-radius:50%;background:#ffffff1f}
.code pre{margin:0;padding:18px 20px;overflow-x:auto}
.code .c{color:#8A8174}.code .k{color:#E9A07F}.code .s{color:#B8C99A}.code .n{color:#E4D3B8}
.copy{background:none;border:1px solid #ffffff26;color:#C9C1B5;border-radius:8px;padding:4px 10px;font:12px var(--mono);cursor:pointer}
.copy:hover{color:#fff;border-color:#ffffff59}

/* forms */
.field{display:flex;gap:8px;background:var(--card);border:1px solid var(--line-2);border-radius:999px;padding:6px;max-width:460px}
.field input{flex:1;min-width:0;border:0;background:transparent;padding:0 14px;font:16px var(--sans);color:var(--ink);outline:none}
.field:focus-within{border-color:var(--ink)}
.form-note{font-size:13px;margin-top:10px;min-height:18px}
.form-note.err{color:#B3261E}.form-note.ok{color:var(--moss)}
@media (max-width:480px){.field{flex-direction:column;border-radius:18px}.field input{padding:12px 10px}.field .btn{width:100%}}

/* footer */
.site-foot{border-top:1px solid var(--line);padding:56px 0 40px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:32px}
@media (max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-grid h4{font:500 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.foot-grid a{display:block;text-decoration:none;color:var(--ink-2);padding:4px 0}
.foot-grid a:hover{color:var(--clay)}
.foot-grid a.logo{display:flex;color:var(--ink);padding:0}
.foot-base{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:24px;border-top:1px solid var(--line);color:var(--muted)}

/* prose (docs, legal) */
.prose{max-width:740px}
.prose h2{font-size:30px;margin:48px 0 14px}
.prose h3{font-family:var(--sans);font-weight:600;font-size:18px;margin:28px 0 10px;letter-spacing:0}
.prose p,.prose li{color:var(--ink-2)}
.prose p{margin:0 0 14px}
.prose ul,.prose ol{padding-left:22px;margin:0 0 14px}
.prose li{margin:6px 0}
.prose :not(pre)>code{background:var(--paper-2);border:1px solid var(--line);border-radius:6px;padding:1px 6px}
.prose .code{margin:16px 0 22px}
.callout{border-left:3px solid var(--clay);background:var(--clay-soft);padding:14px 18px;border-radius:0 12px 12px 0;color:var(--ink-2);margin:0 0 22px}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}