/* ~/ardi — Direction A: Terminal / Engineer */
:root {
  --bg: #0E1116;
  --surface: #151A21;
  --border: #262C36;
  --border-strong: #3A4250;
  --text: #E6EDF3;
  --text-2: #C9D1D9;
  --muted: #9BA7B4;
  --accent: #3FB950;       /* swap: #58A6FF blue, #E3B341 amber, #F778BA pink */
  --accent-soft: #7EE787;
  --amber: #E3B341;
  --key: #79C0FF;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: Inter, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 8px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
/* faint scanlines for the menacing CRT feel */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(to bottom, rgba(255,255,255,0.018) 0 1px, transparent 1px 3px);
  z-index: 100;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cursor { animation: none !important; }
}

a { color: var(--accent-soft); }
a:hover { color: #B4F5B9; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.mono { font-family: var(--mono); }
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -9999px; top: 8px;
  background: var(--accent); color: var(--bg); padding: 8px 12px; z-index: 200;
}
.skip-link:focus { left: 8px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14,17,22,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 68px;
}
.logo { color: var(--text); text-decoration: none; font-weight: 700; font-size: 15px; }
.cursor { color: var(--accent); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.site-nav { display: flex; gap: 24px; font-size: 14px; }
.site-nav a { color: var(--muted); text-decoration: none; padding: 12px 0; }
.site-nav a:hover { color: var(--text); }

.nav-toggle {
  display: none;
  background: none; border: 1px solid var(--border-strong); color: var(--text);
  border-radius: 6px; min-height: 44px; padding: 0 14px; font-size: 13px; cursor: pointer;
}

/* Hero */
.hero { padding: 112px 24px 80px; display: flex; flex-direction: column; gap: 24px; }
.prompt { margin: 0; font-size: 15px; color: var(--muted); }
.ps1 { color: var(--accent); }
.hero h1 {
  margin: 0; font-size: clamp(36px, 7vw, 60px); line-height: 1.1;
  font-weight: 700; letter-spacing: -1px;
}
.lead { margin: 0; font-size: clamp(18px, 2.2vw, 22px); line-height: 1.55; color: var(--text-2); max-width: 720px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; padding-top: 8px; }
.btn {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 20px;
  border: 1px solid var(--border-strong); border-radius: 6px;
  color: var(--text); text-decoration: none; font-size: 14px;
  transition: border-color .15s, background .15s;
}
.btn:hover { border-color: var(--accent); color: var(--text); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--bg); font-weight: 700; }
.btn-primary:hover { background: var(--accent-soft); border-color: var(--accent-soft); color: var(--bg); }

/* Sections */
.section { padding: 56px 24px; display: flex; flex-direction: column; gap: 24px; scroll-margin-top: 72px; }
.section-title { margin: 0; font-size: 15px; font-weight: 500; color: var(--accent); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 16px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; display: flex; flex-direction: column; gap: 12px;
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card h3 { margin: 0; font-size: 20px; font-weight: 600; }
.card p { margin: 0; font-size: 15px; line-height: 1.6; color: var(--text-2); }
.card .meta { font-size: 12px; color: var(--muted); }
.card .link { font-size: 13px; margin-top: auto; }

.log { list-style: none; margin: 0; padding: 0; font-size: 15px; }
.log li {
  display: flex; flex-wrap: wrap; gap: 8px 24px;
  padding: 20px 0; border-bottom: 1px dashed var(--border);
}
.log li:last-child { border-bottom: 0; }
.log .when { color: var(--amber); width: 180px; flex-shrink: 0; }
.log .what { flex: 1 1 400px; }
.log .at { color: var(--muted); }
.log p { margin: 6px 0 0; font-family: var(--sans); font-size: 14px; line-height: 1.7; color: var(--text-2); }
.log .muted, .log .muted .when { color: var(--muted); }

.code {
  margin: 0; padding: 24px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 15px; line-height: 1.9; color: var(--text-2); overflow-x: auto;
}
.code .k { color: var(--key); }

/* Footer */
.site-footer {
  margin-top: 48px; padding: 56px 24px 80px; border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px;
  font-size: 14px; color: var(--muted);
}
.footer-links { display: flex; gap: 20px; }
.ok { color: var(--accent); }

/* Mobile */
@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; align-items: center; }
  .site-nav {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 8px 24px 16px;
    background: var(--bg); border-bottom: 1px solid var(--border);
  }
  .site-nav.open { display: flex; }
  .hero { padding-top: 72px; }
  .log .when { width: 100%; }
}