:root {
  --bg-color: #ffffff;
  --text-color: #111111;
  --accent-color: #cc0000;
  --border-color: #000000;
  --link-color: #0000ee;
  --muted-bg: #f4f4f4;
  --muted-border: #dddddd;
  --muted-text: #666666;
  --font-stack: system-ui, -apple-system, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #111111;
    --text-color: #eeeeee;
    --accent-color: #ff3333;
    --border-color: #ffffff;
    --link-color: #66b3ff;
    --muted-bg: #222222;
    --muted-border: #333333;
    --muted-text: #aaaaaa;
  }
}

* { box-sizing: border-box; }

*:focus-visible {
  outline: 3px solid var(--link-color);
  outline-offset: 2px;
}

body {
  font-family: var(--font-stack);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main { flex: 1; }

header, main, footer {
  padding: 1rem;
  max-width: 800px;
  width: calc(100% - 2rem);
  margin: 0 auto;
}

header {
  border-bottom: 4px solid var(--border-color);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
}

footer {
  border-top: 4px solid var(--border-color);
  margin-top: auto;
  padding: 2rem 1rem 1rem;
}

h1 { font-weight: 800; }

h1, h2, h3 {
  text-transform: uppercase;
  border-left: 8px solid var(--accent-color);
  padding-left: 0.5rem;
  margin-top: 0;
}

a {
  color: var(--link-color);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

a:hover {
  background-color: var(--text-color);
  color: var(--bg-color);
  text-decoration: none;
  transform: translateY(-1px);
}

a, button {
  display: inline-block;
  min-height: 44px;
  min-width: 44px;
  line-height: 44px;
  padding: 0 0.5rem;
  transition: all 0.2s ease;
}

ul { list-style-type: square; padding-left: 1.5rem; }
li { margin-bottom: 0.5rem; }

.tel-link, .action-btn {
  font-weight: bold;
  font-size: 1.25rem;
  display: block;
  margin-top: 1rem;
  text-align: center;
  text-decoration: none;
}

.tel-link {
  background-color: var(--bg-color);
  color: var(--accent-color);
  border: 2px solid var(--accent-color);
}

.action-btn {
  background-color: var(--accent-color);
  color: #ffffff;
  border: 2px solid var(--accent-color);
}

.tel-link:hover, .action-btn:hover {
  filter: brightness(0.9);
  transform: translateY(-1px);
}

.hiring-banner {
  background-color: var(--border-color);
  color: var(--bg-color);
  text-align: center;
  padding: 0.5rem;
  font-weight: bold;
  text-transform: uppercase;
  margin-bottom: 1rem;
  border: 2px solid var(--accent-color);
}

.value-prop {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--accent-color);
  margin: 0.5rem 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.trust-bar {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--muted-text);
  letter-spacing: 1px;
}

.brand-group {
  border-left: 8px solid var(--accent-color);
  padding-left: 0.5rem;
  margin-bottom: 1.5rem;
}

.brand-group h1 {
  border-left: none;
  padding-left: 0;
  margin: 0;
  line-height: 1;
}

.brand-group h1 a {
  padding-left: 0;
}

.brand-group .trust-bar {
  padding-top: 0.25rem;
}

.security-badge {
  margin-top: 1rem;
  padding: 0.5rem 0.75rem;
  border: 1px dashed var(--border-color);
  font-size: 0.75rem;
  background-color: var(--muted-bg);
  display: inline-block;
}

.header-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 600px) {
  .header-actions { grid-template-columns: 1fr 1fr; }
}

.why-us {
  background-color: var(--muted-bg);
  padding: 2rem;
  margin: 2rem -1rem;
  border-left: 4px solid var(--accent-color);
}

.why-us h2 {
  border-left: none;
  padding-left: 0;
}

@media (min-width: 800px) {
  .why-us { margin: 2rem 0; }
}

footer a { text-decoration-thickness: 1px; }
footer nav a { padding: 0 0.25rem; }