/*
  Minimal, dark, responsive. Performance-first: system fonts, no frameworks.
*/
:root {
  color-scheme: dark light;
  --bg: #0b0d10;
  --bg-elev: #111419;
  --text: #e7edf3;
  --muted: #a4afbd;
  --accent: #4da3ff;
  --card: #0f1318;
  --border: #1b212a;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.28);
  --radius: 12px;
  --maxw: 1040px;
  --gap: 1.2rem;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.5;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: min(100% - 2rem, var(--maxw));
  margin-inline: auto;
}

/* Header */
.site-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--gap);
  padding: 1.25rem 0 0.75rem;
}
.title { margin: 0; font-size: clamp(1.25rem, 2.5vw, 1.6rem); }
.subtitle { margin: .25rem 0 0; color: var(--muted); font-size: .95rem; }

.site-nav { display: flex; gap: .9rem; }
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: .4rem .6rem;
  border-radius: 8px;
  transition: background-color .15s ease;
}
.site-nav a:hover, .site-nav a:focus-visible {
  background: var(--bg-elev);
  color: var(--text);
  outline: none;
}

/* Sections */
.section { padding: 1.25rem 0; }
.section + .section { border-top: 1px solid var(--border); }
.section h2 { margin: 0 0 .5rem; font-size: clamp(1.1rem, 2vw, 1.25rem); }
.muted { color: var(--muted); }
.tiny { font-size: .85rem; }

.bio p { margin: .5rem 0 0; max-width: 70ch; }

/* Grid */
.grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  margin-top: .75rem;
}

/* Card */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  display: grid;
  gap: .6rem;
  contain: content;
  content-visibility: auto;
}
.card h3 { margin: 0; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); }

.card .tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.tag {
  display: inline-block;
  padding: .18rem .5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: .8rem;
  color: var(--muted);
}

.card .actions { display: flex; gap: .5rem; align-items: center; }
.button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: transparent;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: 10px;
  padding: .44rem .7rem;
  text-decoration: none;
  font-weight: 600;
}
.button:hover, .button:focus-visible {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  outline: none;
}

/* Footer */
.site-footer {
  padding: 1rem 0 2rem;
  display: grid;
  gap: .6rem;
}
.footer-nav { display: flex; flex-wrap: wrap; gap: .8rem; }
.footer-nav a { color: var(--muted); text-decoration: none; }
.footer-nav a:hover, .footer-nav a:focus-visible { color: var(--text); outline: none; }

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}