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

:root{
  --bg: #f6f5f2;
  --ink: #16181a;
  --muted: #6b6f76;
  --line: #dcd9d1;
  --accent: #d62828;
  --track: #1b4965;
  --card: #ffffff;
  --maxw: 760px;
}

*{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.mono{
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ---------- timing strip (signature element) ---------- */
.timing-strip{
  height: 10px;
  width: 100%;
  background-image: repeating-linear-gradient(
    90deg,
    var(--ink) 0px, var(--ink) 1.5px,
    transparent 1.5px, transparent 10px
  );
  background-size: 40px 100%;
  background-repeat: repeat-x;
  opacity: 0.9;
}
.timing-strip.accent{
  background-image: repeating-linear-gradient(
    90deg,
    var(--accent) 0px, var(--accent) 2px,
    transparent 2px, transparent 40px
  );
}

/* ---------- top bar ---------- */
header.site{
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-inner{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand{
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.brand .dot{ color: var(--accent); }
nav.site-nav{
  display: flex;
  gap: 18px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
nav.site-nav a{
  color: var(--muted);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 2px solid transparent;
}
nav.site-nav a:hover,
nav.site-nav a.current{
  color: var(--ink);
  border-bottom-color: var(--accent);
}
.lang-toggle{
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--muted);
}
.lang-toggle a{ color: var(--muted); text-decoration: none; }
.lang-toggle a.current{ color: var(--ink); font-weight: 700; }
.lang-toggle span{ margin: 0 4px; color: var(--line); }

/* ---------- content ---------- */
main{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 48px 24px 96px;
}

.eyebrow{
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
}

h1{
  font-size: 30px;
  line-height: 1.3;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.lede{
  color: var(--muted);
  font-size: 16px;
  margin: 0 0 40px;
}

.updated{
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 40px;
}

section.split{
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}
section.split:last-of-type{
  border-bottom: 1px solid var(--line);
}
.split-num{
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  color: var(--muted);
  padding-top: 2px;
}
.split-body h2{
  font-size: 18px;
  margin: 0 0 12px;
}
.split-body h3{
  font-size: 15px;
  margin: 20px 0 8px;
  color: var(--track);
}
.split-body p{ margin: 0 0 14px; }
.split-body ul, .split-body ol{ margin: 0 0 14px; padding-left: 1.3em; }
.split-body li{ margin-bottom: 6px; }
.split-body a{ color: var(--track); }
.split-body table{
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  margin: 8px 0 4px;
}
.split-body th, .split-body td{
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--line);
  vertical-align: top;
}
.split-body th{
  width: 34%;
  background: var(--card);
  font-weight: 600;
  color: var(--track);
}

.callout{
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  padding: 16px 18px;
  border-radius: 2px;
  font-size: 14.5px;
  margin: 0 0 14px;
}

.app-tag{
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.03em;
  color: var(--track);
  border: 1px solid var(--track);
  padding: 2px 8px;
  border-radius: 2px;
  margin-right: 6px;
}

.contact-box{
  background: var(--ink);
  color: var(--bg);
  padding: 28px;
  border-radius: 2px;
  margin-top: 8px;
}
.contact-box .eyebrow{ color: #ff9a8a; }
.contact-box a{
  color: #fff;
  font-family: "JetBrains Mono", monospace;
  font-size: 17px;
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
}
.contact-box p{ color: #c9cdd3; font-size: 14px; margin: 10px 0 0; }

footer.site{
  border-top: 1px solid var(--line);
  margin-top: 40px;
}
.footer-inner{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 24px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-inner p{
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}
.footer-links{ display: flex; gap: 16px; }
.footer-links a{
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
}
.footer-links a:hover{ color: var(--ink); }

@media (max-width: 560px){
  section.split{ grid-template-columns: 1fr; gap: 6px; }
  .split-num{ padding-top: 0; }
  h1{ font-size: 26px; }
  .site-inner{ flex-wrap: wrap; }
}