/*
 * The lab's landing page. Everything visual comes from bwd-design-system.css
 * (a verbatim copy of the one the demos use); this file only adds the page
 * shell and the few pieces the design system leaves to each app.
 */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bwd-surface);
  color: var(--bwd-body);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--bwd-accent);
}

/* ---------------- Header ---------------- */

.lab-head {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bwd-surface) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--bwd-border);
}

.lab-head-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 4rem;
}

.lab-brand-logo {
  display: block;
  height: 2.5rem;
  width: auto;
  max-width: 15rem;
}

.lab-nav {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
}

.lab-nav a {
  color: var(--bwd-ink-soft);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
}

.lab-nav a:hover {
  color: var(--bwd-accent);
}

.lab-theme {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--bwd-border);
  border-radius: var(--bwd-radius-sm);
  background: var(--bwd-raised);
  color: var(--bwd-ink-soft);
  cursor: pointer;
}

.lab-theme svg {
  width: 1.1rem;
  height: 1.1rem;
}

/* ---------------- Sections ---------------- */

.lab-title {
  margin-top: 1.25rem;
  max-width: 48rem;
}

.lab-demos {
  margin-top: 2rem;
}

.lab-demo {
  display: flex;
  flex-direction: column;
}

.lab-demo-path {
  font-family: var(--bwd-mono);
  font-size: 0.75rem;
  color: var(--bwd-muted);
  margin-bottom: 0.5rem;
}

.lab-demo .bwd-card-body {
  flex: 1;
}

.lab-demo-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.lab-note {
  margin: 1.5rem 0 0;
  font-size: 0.9375rem;
  color: var(--bwd-muted);
}

.lab-stack {
  margin-top: 2rem;
}

.lab-stack-title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--bwd-ink);
}

.lab-stack p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
}

.lab-about .bwd-cta-row {
  margin-top: 1.5rem;
}

.lab-foot {
  border-top: 1px solid var(--bwd-border);
  padding: 2rem 0;
  font-size: 0.8125rem;
  color: var(--bwd-muted);
}

.lab-foot p {
  margin: 0;
}

/* ---------------- Small screens ---------------- */

@media (max-width: 48rem) {
  .bwd-grid--3 {
    grid-template-columns: minmax(0, 1fr);
  }

  .bwd-shell {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .lab-head-inner {
    gap: 0.75rem;
  }

  .lab-nav {
    gap: 0.875rem;
  }

  .lab-nav a {
    font-size: 0.8125rem;
  }

  .lab-brand-logo {
    height: 1.6rem;
  }
}