/* Lintel project page. Same tokens as kenanislamoglu.com, no JS, no web fonts. */
:root {
  color-scheme: light dark;
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --bg: #ffffff;
  --bg-subtle: #f6f7f9;
  --fg: #14161a;
  --fg-muted: #5b6472;
  --border: #e2e5ea;
  --accent: #0b5cff;
  --warm: #b4541a;
  --pass: #1d7a46;
  --fail: #b42318;
  --unproven: #8a6100;
  --measure: 70ch;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1013;
    --bg-subtle: #16191e;
    --fg: #e6e8ec;
    --fg-muted: #9aa3b2;
    --border: #2b313a;
    --accent: #6ea8ff;
    --warm: #f0a46b;
    --pass: #5cc98a;
    --fail: #ff8a80;
    --unproven: #e7c25a;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 1rem/1.7 var(--font-sans); -webkit-font-smoothing: antialiased;
}
main { max-width: 980px; margin: 0 auto; padding: 48px 20px 96px; }
main.narrow { max-width: 640px; }
.prose { max-width: var(--measure); }
a { color: inherit; text-decoration-color: var(--border); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
code { font-family: var(--font-mono); font-size: .9em; background: var(--bg-subtle); border: 1px solid var(--border); border-radius: 4px; padding: 0 .3em; }


.top { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 8px 24px; margin-bottom: 56px; }
.brand { font-weight: 700; font-size: 1.1rem; letter-spacing: .02em; text-decoration: none; }
.brand span { color: var(--warm); }
.top nav { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.top nav a { color: var(--fg-muted); font-size: .92rem; text-decoration: none; }
.top nav a:hover { color: var(--fg); }
.top nav a.back { color: var(--fg); font-weight: 600; }

.hero h1 { font-size: clamp(1.9rem, 4.2vw, 2.8rem); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 18px; max-width: 22ch; }
.hero .lead { font-size: 1.2rem; color: var(--fg-muted); max-width: 60ch; margin: 0 0 22px; }
.meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 8px; padding: 0; list-style: none; }
.meta li { font-size: .82rem; border: 1px solid var(--border); border-radius: 999px; padding: 2px 12px; color: var(--fg-muted); }
.meta li.live::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--pass); margin-right: 7px; vertical-align: 1px; }

section { margin-top: 88px; }
.eyebrow { font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; color: var(--warm); margin: 0 0 6px; font-weight: 600; }
h2 { font-size: 1.6rem; line-height: 1.25; letter-spacing: -.01em; margin: 0 0 18px; }
h3 { font-size: 1.1rem; margin: 34px 0 8px; }
p { margin: 0 0 14px; }
.muted { color: var(--fg-muted); }
.small { font-size: .88rem; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin: 28px 0 10px; }
.stat { border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; background: var(--bg-subtle); }
.stat b { display: block; font-size: 1.9rem; line-height: 1.1; letter-spacing: -.02em; }
.stat span { font-size: .9rem; color: var(--fg-muted); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 16px; margin-top: 22px; }
.card { border: 1px solid var(--border); border-radius: 10px; padding: 18px 20px; }
.card h3 { margin: 0 0 6px; font-size: 1.02rem; }
.card p { margin: 0; color: var(--fg-muted); font-size: .95rem; }

.agents { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 0 28px; margin: 18px 0 0; }
.agents div { padding: 12px 0; border-bottom: 1px solid var(--border); }
.agents dt { font-weight: 600; }
.agents dd { margin: 2px 0 0; color: var(--fg-muted); font-size: .95rem; }

.timeline { list-style: none; padding: 0; margin: 20px 0 0; border-left: 2px solid var(--border); }
.timeline li { position: relative; padding: 0 0 22px 22px; }
.timeline li::before { content: ""; position: absolute; left: -7px; top: 8px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--warm); }
.timeline time { font-family: var(--font-mono); font-size: .85rem; color: var(--fg-muted); }
.timeline strong { display: block; }

.diagram { margin: 26px 0 8px; overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; background: var(--bg-subtle); padding: 10px; }
.diagram svg { display: block; min-width: 820px; width: 100%; height: auto; }
.diagram-caption { font-size: .88rem; color: var(--fg-muted); }

/* diagram classes */
.d-layer { fill: var(--bg); stroke: var(--border); stroke-width: 1.2; }
.d-box { fill: var(--bg); stroke: var(--fg-muted); stroke-width: 1; }
.d-pill { fill: var(--bg-subtle); stroke: var(--border); stroke-width: 1; }
.d-gate { fill: var(--bg); stroke: var(--warm); stroke-width: 1.6; }
.d-out { fill: none; stroke: var(--fg-muted); stroke-width: 1; stroke-dasharray: 4 4; }
.d-cap { fill: var(--warm); font: 600 11px var(--font-sans); letter-spacing: .1em; text-transform: uppercase; }
.d-t { fill: var(--fg); font: 600 13px var(--font-sans); }
.d-s { fill: var(--fg-muted); font: 12px var(--font-sans); }
.d-m { fill: var(--fg); font: 12px var(--font-mono); }
.d-arrow { stroke: var(--fg-muted); stroke-width: 1.2; fill: none; }
.d-arrow-warm { stroke: var(--warm); stroke-width: 1.4; fill: none; }
.d-head { fill: var(--fg-muted); }
.d-head-warm { fill: var(--warm); }
.d-pass { fill: var(--pass); font: 600 12px var(--font-sans); }
.d-fail { fill: var(--fail); font: 600 12px var(--font-sans); }
.d-unp { fill: var(--unproven); font: 600 12px var(--font-sans); }

.verdicts { display: flex; gap: 10px; flex-wrap: wrap; margin: 10px 0 16px; }
.verdicts span { font-family: var(--font-mono); font-size: .85rem; border-radius: 6px; padding: 2px 10px; border: 1px solid currentColor; }
.v-pass { color: var(--pass); } .v-fail { color: var(--fail); } .v-unp { color: var(--unproven); }

table { border-collapse: collapse; width: 100%; margin: 14px 0; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--fg-muted); font-weight: 600; }
.table-wrap { overflow-x: auto; }

.callout { border-left: 3px solid var(--warm); padding: 6px 0 6px 18px; margin: 18px 0; }

footer { margin-top: 96px; padding-top: 24px; border-top: 1px solid var(--border); font-size: .9rem; color: var(--fg-muted); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

.hero { margin-top: 0; }