/* Decibel — instrument-panel developer-site styling. */
:root {
  --ink: #0e0f12;
  --ink-2: #16181c;
  --ink-3: #1f2227;
  --bone: #f5f0e4;
  --bone-dim: #c8c4b8;
  --muted: #807d75;
  --amber: #ffc858;
  --amber-deep: #d29a26;
  --safe: #7adaa1;
  --danger: #ee5454;
  --radius: 14px;
  --shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
  --max: 720px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.62;
  color: var(--bone);
  background: var(--ink);
  min-height: 100vh;
}
header {
  padding: 40px 24px 18px;
  text-align: center;
}
header .logo {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--bone);
}
header .mark {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--bone);
  box-shadow: var(--shadow);
  display: inline-flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 8px;
  font-weight: 800;
  font-size: 24px;
  color: var(--ink);
  position: relative;
  letter-spacing: -0.5px;
}
header .mark::before {
  /* Tiny VU-meter arc above the dB. */
  content: "";
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  height: 22px;
  border-radius: 22px 22px 0 0;
  border-top: 3px solid var(--safe);
  border-left: 3px solid var(--amber);
  border-right: 3px solid var(--danger);
  box-sizing: border-box;
}
header h1 {
  font-weight: 800;
  font-size: 30px;
  margin: 0;
  line-height: 1;
  letter-spacing: -0.5px;
}
header .tagline {
  display: block;
  font-weight: 500;
  font-size: 14px;
  color: var(--bone-dim);
  margin-top: 14px;
}
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 24px 80px;
}
main h2 {
  font-weight: 800;
  font-size: 26px;
  color: var(--bone);
  margin: 32px 0 8px;
  letter-spacing: -0.4px;
}
main h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--amber);
  margin: 22px 0 6px;
  letter-spacing: -0.2px;
}
main p { margin: 8px 0 14px; }
main a { color: var(--amber); text-decoration: underline; text-underline-offset: 2px; }
main a:hover { color: var(--amber-deep); }
main ul { padding-left: 22px; }
main li { margin: 4px 0; }
main code, main pre {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 13px;
  background: var(--ink-2);
  padding: 2px 6px;
  border-radius: 5px;
}
main .card {
  background: var(--ink-2);
  border: 1px solid #262b32;
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: var(--shadow);
  margin-top: 18px;
}
main .small {
  font-size: 13px;
  color: var(--muted);
}
main .hero {
  text-align: center;
  margin: 12px 0 28px;
}
main .hero p {
  font-size: 17px;
  color: var(--bone-dim);
  max-width: 540px;
  margin: 8px auto 0;
}
nav.pages {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 18px 0 8px;
}
nav.pages a {
  display: inline-block;
  background: var(--ink-2);
  color: var(--bone);
  padding: 10px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 13px;
  border: 1px solid #2a2f37;
  transition: background 120ms ease;
}
nav.pages a:hover { background: var(--ink-3); }
nav.pages a.primary {
  background: var(--amber);
  color: var(--ink);
  border-color: var(--amber);
}
nav.pages a.primary:hover { background: var(--amber-deep); }
footer {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  padding: 24px 12px 40px;
}
footer a { color: var(--bone-dim); text-decoration: none; margin: 0 8px; }
footer a:hover { color: var(--amber); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 18px 0;
}
.feature-grid .item {
  background: var(--ink-2);
  border: 1px solid #262b32;
  border-radius: 12px;
  padding: 14px 16px;
}
.feature-grid .item h4 {
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--amber);
}
.feature-grid .item p {
  margin: 0;
  font-size: 13px;
  color: var(--bone-dim);
  line-height: 1.5;
}
@media (max-width: 540px) {
  .feature-grid { grid-template-columns: 1fr; }
  header { padding: 28px 18px 8px; }
  main { padding: 12px 18px 60px; }
  main .card { padding: 18px 18px; }
}