:root {
  --bg: #fafaf9;
  --surface: #ffffff;
  --text: #1c1917;
  --muted: #57534e;
  --line: #e7e5e4;
  --accent: #0f766e;
  --accent-soft: #ccfbf1;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0a09;
    --surface: #1c1917;
    --text: #f5f5f4;
    --muted: #a8a29e;
    --line: #292524;
    --accent: #2dd4bf;
    --accent-soft: #134e4a;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
.wrap { max-width: 52rem; margin: 0 auto; padding: 0 1rem; }

.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; background: var(--surface); padding: .5rem; z-index: 10; }

.site-header {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: 3.5rem; }
.logo { font-family: var(--mono); font-weight: 700; color: var(--text); text-decoration: none; }
.logo span { color: var(--accent); }
nav { display: flex; gap: 1.1rem; font-size: .92rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--accent); }
@media (max-width: 560px) { nav a:not([href="#contact"]) { display: none; } }

section { padding: 3rem 1rem; }
.hero { padding-top: 5rem; padding-bottom: 4rem; }
.eyebrow { font-family: var(--mono); color: var(--accent); margin: 0 0 .5rem; }
h1 { font-size: clamp(2.4rem, 7vw, 3.6rem); line-height: 1.05; margin: 0; letter-spacing: -.02em; }
.role { font-size: 1.3rem; color: var(--muted); margin: .4rem 0 1.2rem; }
.lede { max-width: 38rem; font-size: 1.1rem; }

.cta { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.8rem; }
.btn {
  display: inline-block; padding: .6rem 1.1rem; border-radius: .5rem;
  border: 1px solid var(--line); background: var(--surface);
  color: var(--text); text-decoration: none; font-weight: 600; font-size: .95rem;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--bg); }

h2 { font-size: 1.5rem; margin: 0 0 1.5rem; display: flex; align-items: baseline; gap: .6rem; }
h2 span { font-family: var(--mono); font-size: .95rem; color: var(--accent); }
h3 { font-size: 1.08rem; margin: 0 0 .4rem; }
.org { color: var(--accent); }
.meta { margin: 0 0 .3rem; font-size: .9rem; color: var(--muted); }
.timeline p { margin: .2rem 0; }
.roles { list-style: none; padding-left: 0 !important; }
.roles li { margin: .25rem 0; }
.roles strong, .plain strong { color: var(--text); }
.plain { list-style: none; padding: 0; margin: 0; }
.plain li { padding: .5rem 0; border-top: 1px solid var(--line); }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline > li {
  display: grid; grid-template-columns: 9rem 1fr; gap: 1rem;
  padding: 1.2rem 0; border-top: 1px solid var(--line);
}
.timeline ul { margin: .3rem 0; padding-left: 1.1rem; color: var(--muted); }
.when { font-family: var(--mono); font-size: .85rem; color: var(--muted); padding-top: .15rem; }
@media (max-width: 560px) { .timeline > li { grid-template-columns: 1fr; gap: .2rem; } }

.tags { display: flex; flex-wrap: wrap; gap: .4rem; margin: .6rem 0 0; }
.tags span {
  font-family: var(--mono); font-size: .78rem; padding: .15rem .5rem;
  border-radius: 999px; background: var(--accent-soft); color: var(--text);
}

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr)); gap: 1rem; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: .75rem; padding: 1.2rem; }
.card p { margin: 0; color: var(--muted); }

.skills { margin: 0; display: grid; gap: .8rem; }
.skills div { display: grid; grid-template-columns: 9rem 1fr; gap: 1rem; }
.skills dt { font-weight: 600; }
.skills dd { margin: 0; color: var(--muted); }
@media (max-width: 560px) { .skills div { grid-template-columns: 1fr; gap: 0; } }

.stats {
  list-style: none; padding: 0; margin: 2.5rem 0 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: 1rem;
}
.stats li { border-left: 2px solid var(--accent); padding-left: .8rem; }
.stats strong { display: block; font-family: var(--mono); font-size: 1.35rem; }
.stats span { color: var(--muted); font-size: .88rem; line-height: 1.35; display: block; }
.timeline ul li { margin: .3rem 0; }
.timeline ul strong { color: var(--text); }
.card h3 { margin-bottom: .4rem; }
.stack { margin-top: 1.5rem; color: var(--muted); }
.stack strong { color: var(--text); }

.site-footer { padding: 2rem 1rem 3rem; color: var(--muted); font-size: .9rem; border-top: 1px solid var(--line); }