/**
 * PBS v2 — app.css
 *
 * Single stylesheet for the entire application.
 * Phase 0: minimal styling for the hello-world boot page.
 * Phase 1+ will add the full design system, white-label custom properties, etc.
 */

:root {
  /* These will be overridden per-tenant by white-label CSS injection */
  --primary-color: #4f46e5;
  --secondary-color: #10b981;
  --bg-color: #f8f9fa;
  --surface-color: #ffffff;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --radius: 12px;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.5;
}

/* === Phase 0 boot screen === */
.boot-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.boot-card {
  background: var(--surface-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px;
  max-width: 560px;
  width: 100%;
}

.boot-card h1 {
  margin: 0 0 8px 0;
  color: var(--primary-color);
  font-size: 32px;
  font-weight: 700;
}

.boot-card .subtitle {
  color: var(--text-secondary);
  margin: 0 0 32px 0;
  font-size: 16px;
}

.boot-info {
  margin: 0 0 24px 0;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 12px 16px;
}

.boot-info dt {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.boot-info dd {
  margin: 0;
  font-family: "SFMono-Regular", Menlo, monospace;
  font-size: 14px;
  word-break: break-all;
}

.footer-note {
  margin: 24px 0 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-secondary);
}