:root {
  --bg: #0c1116;
  --panel: #131a22;
  --line: #223041;
  --fg: #dbe4ee;
  --muted: #7d90a5;
  --accent: #f0a35e;
  --crit: #ff5c5c;
  --high: #ff9d3c;
  --med: #ffd23f;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.7;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { color: var(--fg); background: var(--panel); padding: 1px 4px; border-radius: 4px; }

header, main, footer { max-width: 780px; margin: 0 auto; padding: 0 20px; }

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-top: 28px;
  padding-bottom: 8px;
}
.brand { font-weight: 700; font-size: 14px; }
.accent { color: var(--accent); }
header nav { display: flex; gap: 18px; }
header nav a, footer nav a { color: var(--muted); font-size: 12px; }
header nav a:hover, footer nav a:hover { color: var(--fg); text-decoration: none; }

main { padding-bottom: 40px; }

section { margin-top: 56px; }

.intro { margin-top: 72px; }
h1 { font-size: 15px; font-weight: 700; margin: 0 0 14px; }
.intro p { color: var(--muted); max-width: 640px; margin: 0 0 14px; }

h2 {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin: 0 0 10px;
}
section > p { color: var(--muted); max-width: 640px; margin: 0; }
section p a { color: var(--fg); text-decoration: underline; text-decoration-color: var(--line); }
section p a:hover { text-decoration-color: var(--accent); }

.actions { display: flex; align-items: center; gap: 10px; margin-top: 20px; }
.btn {
  display: inline-block;
  padding: 7px 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--fg);
  font-size: 12px;
}
.btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.platforms { color: var(--muted); font-size: 11px; margin-left: 6px; }

/* Terminal illustration */
.term {
  margin-top: 48px;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--panel);
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
}
.term-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.term-bar span { color: var(--muted); font-size: 11px; margin-left: 8px; }
.term-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
}
.col { background: var(--bg); padding: 12px 14px; min-width: 0; }
.col-h {
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 10px;
}
.flag {
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: 6px;
  padding: 7px 10px;
  margin-bottom: 8px;
  font-size: 12px;
  line-height: 1.55;
}
.flag .sev { font-weight: 700; font-size: 11px; }
.flag .cat { color: var(--muted); font-size: 11px; }
.flag .act { display: block; color: var(--muted); font-size: 11px; }
.f-crit { border-left-color: var(--crit); } .f-crit .sev { color: var(--crit); }
.f-high { border-left-color: var(--high); } .f-high .sev { color: var(--high); }
.f-med  { border-left-color: var(--med); }  .f-med .sev  { color: var(--med); }
.mkt-row {
  padding: 6px 0;
  border-bottom: 1px solid var(--line);
  font-size: 11.5px;
  color: var(--fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mkt-row:last-child { border-bottom: 0; }
.mkt-row b { color: var(--accent); font-weight: 700; }
.muted { color: var(--muted); }

/* Definition grid */
.grid { display: grid; grid-template-columns: 150px 1fr; gap: 10px 18px; margin: 0; }
.grid dt { color: var(--fg); }
.grid dd { color: var(--muted); margin: 0; max-width: 560px; }
.grid dd a { color: var(--fg); text-decoration: underline; text-decoration-color: var(--line); }

footer {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding-top: 18px;
  padding-bottom: 36px;
  color: var(--muted);
  font-size: 12px;
}
footer nav { display: flex; gap: 18px; }

@media (max-width: 640px) {
  .term-body { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; gap: 2px 0; }
  .grid dd { margin-bottom: 10px; }
  .actions { flex-wrap: wrap; }
  header { flex-direction: column; gap: 6px; }
}