:root {
  --bg: #0a0b0d;
  --bg-panel: #121317;
  --border: #26282e;
  --text: #e8e9eb;
  --text-dim: #9a9ca3;
  --accent: #c9a24a; /* muted gold — operator/ops insignia feel */
  --accent-dim: #7d6a35;
  --mono: 'JetBrains Mono', 'Courier New', monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 880px; margin: 0 auto; padding: 0 24px; }

header.site-header {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  position: sticky;
  top: 0;
  background: rgba(10,11,13,0.92);
  backdrop-filter: blur(8px);
  z-index: 10;
}
header.site-header .wrap { display: flex; justify-content: space-between; align-items: center; }
.logo { font-family: var(--mono); letter-spacing: 0.08em; font-size: 14px; text-transform: uppercase; color: var(--text); text-decoration: none; }
.logo span { color: var(--accent); }
nav a { color: var(--text-dim); text-decoration: none; font-size: 13px; margin-left: 28px; letter-spacing: 0.03em; text-transform: uppercase; font-family: var(--mono); }
nav a:hover { color: var(--accent); }

.eyebrow {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: block;
}

.hero { padding: 100px 0 80px; border-bottom: 1px solid var(--border); }
.hero h1 { font-size: 44px; font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; margin-bottom: 24px; }
.hero .lede { font-size: 18px; color: var(--text-dim); max-width: 620px; margin-bottom: 36px; }
.answer-line { font-size: 16px; color: var(--text); background: var(--bg-panel); border-left: 2px solid var(--accent); padding: 16px 20px; max-width: 640px; margin-bottom: 32px; }

.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  padding: 14px 28px;
  text-decoration: none;
  border: 1px solid var(--accent);
}
.btn:hover { background: transparent; color: var(--accent); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); margin-left: 12px; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

section { padding: 72px 0; border-bottom: 1px solid var(--border); }
section h2 { font-size: 26px; font-weight: 600; margin-bottom: 12px; }
section .section-answer { color: var(--text-dim); max-width: 640px; margin-bottom: 40px; font-size: 16px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  padding: 28px;
}
.card h3 { font-size: 17px; margin-bottom: 10px; }
.card .role { font-family: var(--mono); color: var(--accent); font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 12px; display: block; }
.card p { color: var(--text-dim); font-size: 14px; }

.stat-row { display: flex; gap: 48px; flex-wrap: wrap; margin-top: 32px; }
.stat { font-family: var(--mono); }
.stat .num { font-size: 32px; color: var(--accent); font-weight: 600; display: block; }
.stat .label { font-size: 13px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; }

.term-block { padding: 32px 0; border-bottom: 1px solid var(--border); }
.term-block:last-child { border-bottom: none; }
.term-block .term-name { font-size: 22px; font-weight: 600; margin-bottom: 6px; }
.term-block .term-def { font-size: 16px; color: var(--text); margin-bottom: 16px; }
.term-block .term-detail { color: var(--text-dim); font-size: 14px; }
.term-block .term-detail strong { color: var(--text); }

footer { padding: 48px 0; }
footer .wrap { display: flex; justify-content: space-between; color: var(--text-dim); font-size: 13px; font-family: var(--mono); }

@media (max-width: 700px) {
  .hero h1 { font-size: 32px; }
  .grid-2, .grid-4 { grid-template-columns: 1fr; }
  nav a { margin-left: 16px; font-size: 11px; }
}