:root {
  --max-content-width: min(95vw, 1400px);
  --content-padding: max(1rem, 2vw);
  --primary-color: #6d28d9;
  --primary-dark: #4c1d95;
  --secondary-color: #111827;
  --background-color: #f7f7f8;
  --text-color: #111827;
  --muted-color: #6b7280;
  --line-color: #ececf1;
  --danger-color: #dc2626;
  --shadow: 0 2px 4px rgba(0,0,0,0.1);
  /* Apple HIG minimum touch target */
  --tap-target: 44px;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  margin: 0;
  padding: var(--content-padding);
  min-height: 100vh;
  overscroll-behavior-y: contain;
}

.main-content {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: .25rem;
}

@media (max-width: 800px) {
  :root {
    --max-content-width: 100%;
    --content-padding: 0.75rem;
  }
}

/* PWA support (classes injected by pwa.js) */
.pwa-standalone {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

.install-button {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--primary-color);
  color: white;
  border: none;
  min-height: var(--tap-target);
  padding: 12px 20px;
  border-radius: 999px;
  cursor: pointer;
  z-index: 1000;
  font-size: 16px;
  font-weight: 600;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  display: none;
}

.offline-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #ff6b6b;
  color: white;
  text-align: center;
  padding: 8px;
  font-size: 14px;
  z-index: 1001;
  transform: translateY(-100%);
  transition: transform 0.3s ease;
}

.offline-indicator.show {
  transform: translateY(0);
}