:root {
  --bg: #FAFAF7; --surface: #FFFFFF; --muted-surface: #F2F2EE; --border: #E4E4DE; --border-strong: #C9CAC2;
  --text: #0E1116; --text-muted: #4B5260; --text-subtle: #6B7280;
  --primary: #0E7C66; --primary-hover: #0A6655; --primary-subtle: #E3F3EE; --on-primary: #FFFFFF; --accent: #E8A33D;
  --ring: #0E1116; --block: #0E7C66;
  --display: "Geist", "Inter", system-ui, sans-serif; --body: "Inter", system-ui, sans-serif; --mono: "Geist Mono", ui-monospace, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0B0D10; --surface: #14171C; --muted-surface: #1B1F26; --border: #262B33; --border-strong: #363C46;
    --text: #ECEDEA; --text-muted: #A1A7B3; --text-subtle: #8B919D;
    --primary: #3DD6A8; --primary-hover: #5FE0B8; --primary-subtle: #0F2A23; --on-primary: #0B0D10; --accent: #F5B54A;
    --ring: #ECEDEA; --block: #3DD6A8;
  }
}
:root[data-theme="dark"] {
  --bg: #0B0D10; --surface: #14171C; --muted-surface: #1B1F26; --border: #262B33; --border-strong: #363C46;
  --text: #ECEDEA; --text-muted: #A1A7B3; --text-subtle: #8B919D;
  --primary: #3DD6A8; --primary-hover: #5FE0B8; --primary-subtle: #0F2A23; --on-primary: #0B0D10; --accent: #F5B54A;
  --ring: #ECEDEA; --block: #3DD6A8;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 1.0625rem/1.65 var(--body); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }
.mark .r { stroke: var(--ring); } .mark .b { fill: var(--block); }
header.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 600 18px/1 var(--display); letter-spacing: -0.02em; }
nav.links { display: none; gap: 28px; font-size: 15px; color: var(--text-muted); }
nav.links a { text-decoration: none; } nav.links a:hover { color: var(--text); }
@media (min-width: 880px) { nav.links { display: flex; } }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 8px; padding: 11px 18px; font: 500 15px/1 var(--body); text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: background .15s, border-color .15s; white-space: nowrap; }
.btn-primary { background: var(--primary); color: var(--on-primary); } .btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { border-color: var(--border-strong); color: var(--text); background: transparent; } .btn-ghost:hover { background: var(--muted-surface); }
.eyebrow { font: 500 0.8125rem/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--primary); }
h1, h2, h3 { font-family: var(--display); margin: 0; color: var(--text); }
h1 { font-size: clamp(2.75rem, 7vw, 4.5rem); line-height: 1.02; font-weight: 700; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.25rem); line-height: 1.15; font-weight: 600; letter-spacing: -0.02em; }
h3 { font-size: 1.25rem; line-height: 1.3; font-weight: 600; letter-spacing: -0.01em; }
.lead { font-size: 1.25rem; line-height: 1.55; color: var(--text-muted); max-width: 40rem; }
section { padding: 72px 0; } @media (min-width: 720px) { section { padding: 104px 0; } }
.hero { padding-top: 64px; }
.hero-grid { display: grid; gap: 48px; align-items: center; }
@media (min-width: 1000px) { .hero-grid { grid-template-columns: 1.05fr 1fr; } }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.transcript { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; font: 400 13.5px/1.6 var(--mono); box-shadow: 0 1px 0 var(--border), 0 24px 48px -24px rgba(14,17,22,.18); }
.transcript .bar { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; border-bottom: 1px solid var(--border); color: var(--text-subtle); font-size: 12px; }
.transcript .body { padding: 16px 18px; display: grid; gap: 12px; }
.msg-user { color: var(--text); } .msg-user::before { content: "you  "; color: var(--text-subtle); }
.tool { border-left: 2px solid var(--primary); padding-left: 12px; color: var(--text-muted); }
.tool b { color: var(--primary); font-weight: 500; }
.ok { color: var(--primary); }
.result { background: var(--muted-surface); border-radius: 8px; padding: 10px 12px; color: var(--text); }
.result .row { display: flex; justify-content: space-between; gap: 12px; }
.partner { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 22px 0; color: var(--text-muted); font-size: 15px; }
.partner .wrap { display: flex; flex-wrap: wrap; gap: 8px 28px; align-items: center; justify-content: space-between; }
.grid3 { display: grid; gap: 20px; margin-top: 48px; } @media (min-width: 880px) { .grid3 { grid-template-columns: repeat(3, 1fr); } }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 28px; }
.card p { color: var(--text-muted); margin: 12px 0 0; font-size: 16px; }
.card ul { margin: 16px 0 0; padding-left: 18px; color: var(--text-muted); font-size: 15px; }
.icon { width: 36px; height: 36px; border-radius: 8px; background: var(--primary-subtle); color: var(--primary); display: grid; place-items: center; margin-bottom: 18px; }
.steps { counter-reset: s; display: grid; gap: 20px; margin-top: 48px; } @media (min-width: 880px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { list-style: none; counter-increment: s; border-top: 2px solid var(--text); padding-top: 18px; }
.steps li::before { content: "0" counter(s); font: 500 13px/1 var(--mono); color: var(--text-subtle); display: block; margin-bottom: 12px; }
.steps p { color: var(--text-muted); font-size: 16px; margin: 8px 0 0; }
.split { display: grid; gap: 40px; align-items: start; } @media (min-width: 960px) { .split { grid-template-columns: 1fr 1fr; } }
.tools { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); margin-top: 24px; font: 400 13px/1.4 var(--mono); }
.tools span { border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; background: var(--surface); display: flex; justify-content: space-between; gap: 8px; }
.tools em { font-style: normal; color: var(--text-subtle); }
.tools em.w { color: var(--accent); }
pre.code { background: var(--muted-surface); border: 1px solid var(--border); border-radius: 10px; padding: 16px; overflow-x: auto; font: 400 13px/1.6 var(--mono); margin: 20px 0 0; }
.match { display: grid; gap: 10px; }
.match .line { display: flex; justify-content: space-between; gap: 12px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); font-size: 15px; }
.match .line small { color: var(--text-subtle); display: block; font-size: 13px; }
.pill { font: 500 12px/1 var(--mono); padding: 5px 8px; border-radius: 999px; background: var(--primary-subtle); color: var(--primary); align-self: center; }
.compare { width: 100%; border-collapse: collapse; margin-top: 40px; font-size: 15px; }
.compare th, .compare td { padding: 12px 10px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.compare th { font: 500 12px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--text-subtle); }
.compare td:first-child { color: var(--text-muted); }
.tablewrap { overflow-x: auto; }
form.access { display: grid; gap: 14px; }
form.access label { display: grid; gap: 6px; font-size: 14px; color: var(--text-muted); }
form.access input, form.access select { font: 400 16px/1.4 var(--body); padding: 11px 12px; border-radius: 8px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--text); width: 100%; }
form.access input:focus, form.access select:focus { outline: 2px solid var(--primary); outline-offset: 1px; }
.two { display: grid; gap: 14px; } @media (min-width: 600px) { .two { grid-template-columns: 1fr 1fr; } }
.hp { position: absolute; left: -10000px; }
.note { font-size: 14px; color: var(--text-subtle); }
.status { font-size: 15px; padding: 12px 14px; border-radius: 8px; display: none; }
.status.show { display: block; } .status.good { background: var(--primary-subtle); color: var(--text); } .status.bad { background: #FDECEC; color: #8A1C1C; }
footer { border-top: 1px solid var(--border); padding: 40px 0 56px; color: var(--text-subtle); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; }
footer nav { display: flex; flex-wrap: wrap; gap: 20px; } footer a { text-decoration: none; } footer a:hover { color: var(--text); }
.prose { max-width: 46rem; } .prose h2 { margin-top: 40px; font-size: 1.5rem; } .prose p, .prose li { color: var(--text-muted); }
.swatches { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); margin-top: 24px; }
.swatch { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--surface); font-size: 13px; }
.swatch .chip { height: 84px; display: flex; align-items: flex-end; padding: 10px; font: 500 12px/1 var(--mono); }
.swatch .meta { padding: 10px 12px; display: grid; gap: 2px; } .swatch .meta b { font-weight: 600; } .swatch .meta code { font-family: var(--mono); color: var(--text-muted); }
.logo-tiles { display: grid; gap: 16px; margin-top: 24px; } @media (min-width: 760px) { .logo-tiles { grid-template-columns: repeat(2, 1fr); } }
.tile { border: 1px solid var(--border); border-radius: 12px; min-height: 220px; display: grid; place-items: center; padding: 32px; position: relative; }
.tile .dl { position: absolute; bottom: 12px; right: 14px; font: 500 12px/1 var(--mono); display: flex; gap: 10px; }
.tile.light { background: #FAFAF7; } .tile.dark { background: #0B0D10; } .tile.green { background: #0E7C66; } .tile.paper { background: #F2F2EE; }
.tile .dl a { color: inherit; opacity: .7; } .tile.dark .dl, .tile.green .dl { color: #ECEDEA; } .tile.light .dl, .tile.paper .dl { color: #0E1116; }
.type-sample { border: 1px solid var(--border); border-radius: 12px; padding: 24px; background: var(--surface); margin-top: 16px; }
.type-sample .label { font: 500 12px/1 var(--mono); color: var(--text-subtle); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 12px; }
.dos { display: grid; gap: 16px; margin-top: 24px; } @media (min-width: 760px) { .dos { grid-template-columns: 1fr 1fr; } }
.dos .card h3 { font-size: 1rem; } .do h3 { color: var(--primary); } .dont h3 { color: #B91C1C; }
.toc { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 28px; font: 500 13px/1 var(--mono); }
.toc a { text-decoration: none; color: var(--text-muted); } .toc a:hover { color: var(--text); }
.anatomy { display: grid; gap: 24px; align-items: center; margin-top: 24px; } @media (min-width: 760px) { .anatomy { grid-template-columns: 280px 1fr; } }
.sizes { display: flex; align-items: flex-end; gap: 20px; flex-wrap: wrap; margin-top: 20px; }
.sizes figure { margin: 0; text-align: center; font: 400 12px/1.4 var(--mono); color: var(--text-subtle); }