:root {
  --bg: #0a0e14;
  --bg-2: #111823;
  --panel: #131d2a;
  --panel-2: #0f1722;
  --line: #2a3b52;
  --text: #d6e1ee;
  --muted: #9cb2c8;
  --accent: #8bdc9a;
  --accent-2: #f1cb78;
  --danger: #f28c8c;
  --radius: 12px;
  --shadow: 0 18px 42px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  color: var(--text);
  background:
    radial-gradient(900px 500px at 100% -20%, rgba(42, 77, 66, 0.32), transparent 60%),
    radial-gradient(900px 500px at -15% -20%, rgba(76, 62, 33, 0.25), transparent 60%),
    var(--bg);
  font-family: "IBM Plex Mono", "Liberation Mono", "Courier New", monospace;
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 85%);
}

.wrap {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: 26px 18px 70px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px;
  background: rgba(11, 16, 24, 0.8);
  backdrop-filter: blur(5px);
}

.brand {
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.brand strong {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
  font-size: 13px;
}

.hero {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, var(--panel), var(--panel-2));
  padding: 22px;
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0;
  font-size: clamp(22px, 3.5vw, 40px);
  line-height: 1.1;
}

.hero p {
  margin: 12px 0 0;
  color: var(--muted);
  max-width: 80ch;
}

.hero .kicker {
  color: var(--accent-2);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 12px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  background: rgba(10, 15, 22, 0.75);
}

.card h2,
.card h3 {
  margin: 0;
}

.card p {
  margin: 8px 0 0;
  color: var(--muted);
}

.span-4 { grid-column: span 4; }
.span-6 { grid-column: span 6; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }

ul,
ol {
  margin: 8px 0 0;
  padding-left: 22px;
}

li {
  margin-bottom: 6px;
}

code {
  font-family: inherit;
  color: var(--accent);
  background: rgba(11, 19, 29, 0.9);
  border: 1px solid rgba(139, 220, 154, 0.2);
  border-radius: 6px;
  padding: 0 6px;
}

pre {
  margin: 10px 0 0;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #09101a;
  color: #b9cbde;
  overflow-x: auto;
}

pre code {
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0;
}

.callout {
  margin-top: 10px;
  border-left: 4px solid var(--accent-2);
  background: rgba(26, 22, 12, 0.45);
  border-radius: 8px;
  padding: 10px 12px;
  color: #e7d2a2;
}

.note {
  margin-top: 10px;
  border-left: 4px solid var(--accent);
  background: rgba(13, 29, 19, 0.5);
  border-radius: 8px;
  padding: 10px 12px;
  color: #c3e8cb;
}

.footer {
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.badge {
  display: inline-block;
  border: 1px solid rgba(139, 220, 154, 0.3);
  color: var(--accent);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 12px;
  margin-right: 6px;
  margin-top: 6px;
}

@media (max-width: 940px) {
  .span-4,
  .span-6,
  .span-8 {
    grid-column: span 12;
  }
}