:root {
  --color-text: #1a1a1a;
  --color-muted: #666;
  --color-bg: #ffffff;
  --color-accent: #007aff;
  --color-border: #e5e5e5;
  --max-width: 720px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
}

.brand {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-text);
  text-decoration: none;
}

main {
  flex: 1 0 auto;
  padding: 40px 20px 60px;
}

.hero h1 {
  margin-bottom: 8px;
}

.lead {
  color: var(--color-muted);
  font-size: 1.1rem;
}

h1 {
  font-size: 1.8rem;
}

h2 {
  font-size: 1.3rem;
  margin-top: 2em;
}

.meta {
  color: var(--color-muted);
  font-size: 0.9rem;
}

a {
  color: var(--color-accent);
}

.card {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px;
  margin-top: 12px;
}

.card h3 {
  margin-top: 0;
}

.prose p {
  margin: 1em 0;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 480px;
  margin-top: 20px;
}

.contact-form label {
  font-weight: 600;
  margin-top: 12px;
}

.contact-form input,
.contact-form textarea {
  font: inherit;
  padding: 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
}

.contact-form button {
  align-self: flex-start;
  margin-top: 20px;
  padding: 10px 20px;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
}