/* Optimum Safety Tools Portal — brand tokens
   Matches tracker.optimumsafetyohio.com: near-black background, red accent, white text. */

:root {
  --os-bg: #0a0a0c;
  --os-bg-panel: #131316;
  --os-bg-panel-raised: #18181c;
  --os-bg-input: #1c1c21;
  --os-border: rgba(255, 255, 255, 0.09);
  --os-border-strong: rgba(255, 255, 255, 0.16);

  --os-red: #dc2626;
  --os-red-hover: #ef4444;
  --os-red-dim: rgba(220, 38, 38, 0.15);

  --os-text: #f5f5f5;
  --os-text-muted: #9ca3af;
  --os-text-faint: #6b7280;

  --os-green: #22c55e;
  --os-green-dim: rgba(34, 197, 94, 0.15);
  --os-amber: #f59e0b;
  --os-amber-dim: rgba(245, 158, 11, 0.15);
  --os-blue: #3b82f6;
  --os-blue-dim: rgba(59, 130, 246, 0.15);
  --os-purple: #8b5cf6;
  --os-purple-dim: rgba(139, 92, 246, 0.15);

  --os-font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --os-radius-sm: 6px;
  --os-radius: 10px;
  --os-radius-lg: 14px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--os-bg);
  color: var(--os-text);
  font-family: var(--os-font);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.os-app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.os-main {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

@media (max-width: 720px) {
  .os-main {
    padding: 20px 16px 48px;
  }
}