:root {
  color-scheme: dark;
  --background: #090b12;
  --panel: #111621;
  --line: #2a3549;
  --text: #e9edf5;
  --muted: #a7b1c3;
  --cyan: #59e1ff;
  --green: #c7ff6a;
  --max-width: 46rem;
}

* { box-sizing: border-box; }

body {
  background: radial-gradient(circle at top, #172640 0, var(--background) 30rem);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  margin: 0;
  min-height: 100vh;
}

a { color: var(--cyan); }
a:focus-visible { outline: 3px solid var(--green); outline-offset: 3px; }

.shell { margin: 0 auto; max-width: var(--max-width); padding: 1.25rem; }

.site-header {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 1rem 0 2rem;
}

.brand { color: var(--text); font-weight: 800; letter-spacing: .08em; text-decoration: none; }

nav { display: flex; flex-wrap: wrap; gap: .75rem; }
nav a { color: var(--muted); font-size: .9rem; text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--green); }

.panel {
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 1rem 3rem #0006;
  padding: clamp(1.25rem, 4vw, 2.5rem);
}

.eyebrow { color: var(--green); font-size: .78rem; font-weight: 700; letter-spacing: .14em; margin: 0 0 .5rem; }
h1 { font-size: clamp(2rem, 8vw, 3.4rem); letter-spacing: -.045em; line-height: 1.06; margin: 0 0 1rem; }
h2 { font-size: 1.25rem; margin: 2.25rem 0 .75rem; }
h3 { font-size: 1rem; margin: 1.5rem 0 .4rem; }
p, li { max-width: 70ch; }
.lede { color: var(--muted); font-size: 1.1rem; }
.meta { color: var(--muted); font-size: .9rem; }
.cards { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); margin-top: 2rem; }
.card { background: #0b1019; border: 1px solid var(--line); border-radius: 12px; color: var(--text); padding: 1.1rem; text-decoration: none; }
.card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.card strong { display: block; margin-bottom: .25rem; }
table { border-collapse: collapse; display: block; font-size: .92rem; margin: 1rem 0; overflow-x: auto; width: 100%; }
th, td { border: 1px solid var(--line); padding: .65rem; text-align: left; vertical-align: top; }
th { background: #151e2d; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }
footer { color: var(--muted); font-size: .82rem; padding: 2rem 0 1rem; }

@media (max-width: 30rem) {
  .site-header { align-items: flex-start; flex-direction: column; padding-bottom: 1.25rem; }
  .panel { border-radius: 12px; }
}