/* Depthly.studio — matches the app's dark glass design language. */
:root {
  --bg: #08080b;
  --bg-elevated: #0e0e14;
  --glass: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --text: #f2f2f7;
  --text-secondary: #9d9da8;
  --text-tertiary: #6c6c76;
  --accent: #3d8bff;
  --accent-soft: rgba(61, 139, 255, 0.16);
  --radius: 20px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 860px; margin: 0 auto; padding: 0 24px; }

header.site {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  background: rgba(8, 8, 11, 0.72);
  border-bottom: 1px solid var(--glass-border);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--text); text-decoration: none; }
.brand .mark { width: 28px; height: 28px; border-radius: 8px; display: block; }
nav a { color: var(--text-secondary); text-decoration: none; font-size: 14px; margin-left: 22px; }
nav a:hover { color: var(--text); }

.hero { padding: 96px 0 64px; text-align: center; }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.1; letter-spacing: -0.02em; font-weight: 800; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, #6fb2ff, #3d8bff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lede { margin: 18px auto 0; max-width: 560px; color: var(--text-secondary); font-size: 18px; }
.badges { margin-top: 34px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.badge-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px;
  background: var(--glass); border: 1px solid var(--glass-border);
  color: var(--text-secondary); font-size: 13px; text-decoration: none;
}
.badge-pill.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.badge-pill.primary:hover { filter: brightness(1.1); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; padding: 24px 0 72px; }
.card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 22px;
}
.card h3 { font-size: 15px; margin-bottom: 6px; }
.card p { color: var(--text-secondary); font-size: 14px; }
.card .icon { font-size: 22px; margin-bottom: 10px; display: block; }

main.doc { padding: 72px 0 56px; }
main.doc h1 { font-size: 34px; letter-spacing: -0.02em; margin-bottom: 6px; }
main.doc p.meta { color: var(--text-tertiary); font-size: 13px; margin-bottom: 34px; }
main.doc h2 { font-size: 19px; margin: 34px 0 10px; }
main.doc p, main.doc li { color: var(--text-secondary); font-size: 15px; }
main.doc ul { padding-left: 22px; margin: 10px 0; }
main.doc a { color: var(--accent); text-decoration: none; }
main.doc a:hover { text-decoration: underline; }
.callout {
  background: var(--accent-soft); border: 1px solid rgba(61, 139, 255, 0.35);
  border-radius: var(--radius); padding: 18px 20px; margin: 22px 0; font-size: 15px;
}

footer.site { border-top: 1px solid var(--glass-border); padding: 28px 0 44px; }
footer.site .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
footer.site span, footer.site a { color: var(--text-tertiary); font-size: 13px; text-decoration: none; }
footer.site a:hover { color: var(--text-secondary); }
footer.site nav a { margin: 0 0 0 18px; }