@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap");

:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --ink: #1b1b18;
  --muted: #6b6a63;
  --line: #e4e2da;
  --accent: #c2410c;
  --accent-soft: #fbe9df;
  --chip: #efede6;
  --skeleton: #e9e7df;
  --radius: 14px;
  --max: 1080px;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131311;
    --surface: #1c1c19;
    --ink: #ecebe6;
    --muted: #a09f97;
    --line: #2e2d29;
    --accent: #fb923c;
    --accent-soft: #3a2415;
    --chip: #282824;
    --skeleton: #2c2b27;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 72px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration-color: var(--line); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 10; }
.site-header .wrap { display: flex; align-items: center; gap: 24px; height: 60px; }
.brand { font-weight: 600; text-decoration: none; }
.nav { display: flex; gap: 18px; font-size: 14px; color: var(--muted); }
.nav a { text-decoration: none; }
.nav a[aria-current="page"] { color: var(--ink); font-weight: 500; }
.view-toggle { margin-left: auto; display: flex; background: var(--chip); border-radius: 999px; padding: 3px; font-size: 13px; }
.view-toggle a { padding: 4px 12px; border-radius: 999px; text-decoration: none; color: var(--muted); }
.view-toggle a.on { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgb(0 0 0 / .08); }

/* Hero */
.hero { padding-top: 72px; padding-bottom: 48px; }
.eyebrow { font: 500 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
.hero h1 { font-size: clamp(30px, 4.6vw, 48px); font-weight: 600; max-width: 22ch; }
.hero .proof { color: var(--muted); font-size: 18px; margin-top: 18px; max-width: 60ch; }
.hero .cta { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 10px 16px; border-radius: 10px; font-size: 14px; font-weight: 500; text-decoration: none; border: 1px solid var(--line); background: var(--surface); }
.btn.primary { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* Section headings */
.section { padding-top: 40px; padding-bottom: 40px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 20px; gap: 16px; }
.section-head h2 { font-size: 20px; font-weight: 600; }
.section-head .hint { color: var(--muted); font-size: 14px; }

/* Product cards */
.cards { display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; text-decoration: none; display: flex; flex-direction: column; transition: transform .15s, border-color .15s; }
.card:hover { transform: translateY(-2px); border-color: var(--muted); }
.card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card h3 { font-size: 18px; font-weight: 600; display: flex; align-items: center; gap: 10px; }
.card .one { color: var(--ink); }
.card .emph { color: var(--muted); font-size: 14px; }
.card .meta { margin-top: auto; padding-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; }

.status { font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; padding: 4px 7px; border-radius: 6px; background: var(--chip); color: var(--muted); }
.status.live { background: var(--accent-soft); color: var(--accent); }
.chip { font: 12px/1 var(--mono); padding: 5px 8px; border-radius: 6px; background: var(--chip); color: var(--muted); white-space: nowrap; }
.role-line { font-size: 13px; color: var(--muted); }
.role-line b { color: var(--ink); font-weight: 500; }

/* Media placeholder (browser frame + skeleton UI) */
.media { position: relative; background: var(--skeleton); aspect-ratio: 16 / 10; border-bottom: 1px solid var(--line); overflow: hidden; }
.media .bar { height: 26px; background: var(--chip); display: flex; align-items: center; gap: 6px; padding: 0 10px; border-bottom: 1px solid var(--line); }
.media .bar i { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.media .ui { position: absolute; inset: 26px 0 0 0; display: grid; grid-template-columns: 22% 1fr; }
.media .side { border-right: 1px solid var(--line); padding: 12px 10px; display: flex; flex-direction: column; gap: 8px; }
.media .main { padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.media .s { height: 8px; border-radius: 4px; background: var(--line); }
.media .row { height: 22px; border-radius: 6px; background: var(--surface); opacity: .7; }
.media .row.hl { background: var(--accent-soft); opacity: 1; }
.media .label { position: absolute; right: 10px; bottom: 10px; font: 11px/1 var(--mono); background: var(--surface); color: var(--muted); padding: 6px 8px; border-radius: 6px; border: 1px solid var(--line); }
.media.real img, .media.real video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; background: var(--skeleton); }
.media.big { border: 1px solid var(--line); border-radius: var(--radius); }

/* Case study */
.cs-hero { padding: 48px 0 24px; }
.cs-hero h1 { font-size: clamp(30px, 4vw, 44px); font-weight: 600; }
.cs-hero .one { font-size: 20px; color: var(--muted); margin-top: 10px; max-width: 50ch; }
.back { font-size: 14px; color: var(--muted); text-decoration: none; display: inline-block; margin-bottom: 24px; }

.tldr { display: grid; grid-template-columns: 1.1fr 1fr; gap: 28px; margin: 28px 0 8px; align-items: start; }
.facts { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; display: grid; gap: 14px; }
.facts dl { display: grid; grid-template-columns: 90px 1fr; gap: 8px 14px; margin: 0; font-size: 14px; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; }
.facts .emph { border-left: 3px solid var(--accent); padding-left: 12px; font-size: 15px; }

.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 8px; font-size: 13px; }
.toc a { text-decoration: none; padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); }
.toc a:hover { color: var(--ink); border-color: var(--muted); }

.cs-section { padding: 36px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 200px 1fr; gap: 28px; }
.cs-section > h2 { font-size: 15px; font-weight: 600; position: sticky; top: 80px; align-self: start; }
.cs-section > h2 small { display: block; font: 12px/1.4 var(--mono); color: var(--muted); font-weight: 400; margin-top: 4px; letter-spacing: 0; }
.prose { max-width: 68ch; display: grid; gap: 14px; }
.prose .k { font: 500 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 4px; }

.caps { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.cap .media { aspect-ratio: 16 / 8; }
.cap { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.cap .t { padding: 14px 16px 16px; display: grid; gap: 4px; }
.cap h3 { font-size: 15px; font-weight: 600; }
.cap p { font-size: 14px; color: var(--muted); }

.decisions { display: grid; gap: 16px; }
.decision { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; display: grid; gap: 12px; }
.decision h3 { font-size: 16px; font-weight: 600; display: flex; gap: 10px; align-items: baseline; }
.decision h3 span { font: 12px var(--mono); color: var(--accent); }
.decision .opts { display: flex; flex-wrap: wrap; gap: 8px; }
.decision .opt { font-size: 13px; padding: 6px 10px; border-radius: 8px; border: 1px dashed var(--line); color: var(--muted); }
.decision .opt.chosen { border: 1px solid var(--accent); color: var(--ink); background: var(--accent-soft); }
.decision dl { display: grid; grid-template-columns: 110px 1fr; gap: 6px 14px; margin: 0; font-size: 14px; }
.decision dt { color: var(--muted); }
.decision dd { margin: 0; }

.stack-card { display: grid; grid-template-columns: 130px 1fr; gap: 10px 16px; font-size: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.stack-card dt { color: var(--muted); font: 12px/26px var(--mono); text-transform: uppercase; letter-spacing: .05em; }
.stack-card dd { margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }

.arch { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; overflow-x: auto; }
.tier { display: grid; gap: 8px; align-content: start; position: relative; }
.tier h4 { margin: 0 0 4px; font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.tier .node { font-size: 13px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); }
.tier:not(:last-child)::after { content: "→"; position: absolute; right: -20px; top: 50%; color: var(--muted); }
.arch-note { font-size: 13px; color: var(--muted); margin-top: 8px; }

.tech { display: grid; gap: 12px; }
.tech div { border-left: 2px solid var(--line); padding-left: 14px; }
.tech b { font-weight: 600; font-size: 15px; }
.tech p { font-size: 14px; color: var(--muted); }

.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
ul.clean { margin: 0; padding-left: 18px; display: grid; gap: 6px; }
.quote { font-size: 17px; border-left: 3px solid var(--accent); padding-left: 16px; }
.quote cite { display: block; font-style: normal; font-size: 13px; color: var(--muted); margin-top: 6px; }

details { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; }
details + details { margin-top: 10px; }
summary { cursor: pointer; font-weight: 500; }
details p { margin-top: 8px; color: var(--muted); font-size: 14px; }

.cta-band { margin: 40px 0 72px; padding: 28px; border-radius: var(--radius); background: var(--ink); color: var(--bg); display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.cta-band .btn { background: var(--bg); color: var(--ink); border-color: var(--bg); }

/* Work index */
.list { border-top: 1px solid var(--line); }
.list-row { display: grid; grid-template-columns: 180px 1fr auto; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--line); align-items: baseline; text-decoration: none; }
.list-row .t { font-weight: 600; }
.list-row .d { color: var(--muted); }
.row-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.list-row .r { display: flex; gap: 6px; align-items: center; }

/* Stack page */
.layer { padding: 24px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 200px 1fr; gap: 24px; }
.layer h2 { font: 500 12px/1.6 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.tech-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.tech-item { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.tech-item b { font-weight: 600; font-size: 15px; }
.tech-item .used { font-size: 13px; color: var(--muted); margin-top: 4px; }
.tech-item .used a { color: var(--ink); }

/* About */
.steps { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.step .n { font: 500 12px var(--mono); color: var(--accent); }
.step h3 { font-size: 16px; margin: 6px 0; }
.step p { font-size: 14px; color: var(--muted); }

.site-footer { border-top: 1px solid var(--line); padding: 28px 0 48px; color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: flex; gap: 18px; flex-wrap: wrap; }
.proto-note { font: 12px var(--mono); color: var(--muted); margin-left: auto; }

@media (max-width: 760px) {
  .nav { display: none; }
  .tldr, .two { grid-template-columns: 1fr; }
  .cs-section, .layer { grid-template-columns: 1fr; gap: 14px; }
  .cs-section > h2 { position: static; }
  .list-row { grid-template-columns: 1fr; gap: 4px; }
  .arch { grid-auto-flow: row; grid-auto-columns: auto; }
  .tier:not(:last-child)::after { content: "↓"; right: auto; left: 50%; top: auto; bottom: -22px; }
  .decision dl, .stack-card { grid-template-columns: 1fr; gap: 2px; }
  .decision dd, .stack-card dd { margin-bottom: 8px; }
}

ul.clean.tight { gap: 2px; padding-left: 16px; }
.muted { color: var(--muted); }