/* Mobile-first vanilla CSS per adr_004 */

:root {
  --color-bg: #0f172a;
  --color-surface: #1e293b;
  --color-text: #f1f5f9;
  --color-muted: #94a3b8;
  --color-planned: #64748b;
  --color-in-progress: #d97706;
  --color-shipped: #16a34a;
  --color-unknown: #dc2626;
  --radius: 0.5rem;
  --spacing: 1rem;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
}

.site-header {
  padding: 1.5rem 1rem;
  text-align: center;
}

.site-header h1 {
  font-size: 1.75rem;
  margin: 0 0 0.5rem 0;
}

.subhead {
  color: var(--color-muted);
  font-size: 1rem;
  max-width: 75ch;
  margin: 0 auto;
}

main {
  padding: 0 1rem 2rem 1rem;
  max-width: 75rem;
  margin: 0 auto;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing);
  width: 100%;
}

@media (min-width: 40rem) {
  .roadmap-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .roadmap-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: var(--spacing);
  width: 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.feature-card h2 {
  font-size: 1.125rem;
  margin: 0;
}

.feature-card p {
  color: var(--color-muted);
  margin: 0;
  font-size: 1rem;
  max-width: 75ch;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2rem;
  min-width: 2.75rem;
  padding: 0.375rem 0.75rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: capitalize;
  align-self: flex-start;
}

.badge-planned {
  background: var(--color-planned);
  color: #fff;
}

.badge-in-progress {
  background: var(--color-in-progress);
  color: #1a1200;
}

.badge-shipped {
  background: var(--color-shipped);
  color: #04210c;
}

.badge-unknown {
  background: var(--color-unknown);
  color: #fff;
}

.empty-state {
  color: var(--color-muted);
  text-align: center;
  padding: 2rem 1rem;
}

.site-footer {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.875rem;
  padding: 1rem;
}

a, button {
  min-height: 2.75rem;
  min-width: 2.75rem;
}

:focus-visible {
  outline: 3px solid #38bdf8;
  outline-offset: 2px;
}