:root {
  --bg: #ffffff;
  --text: #1f2937;
  --muted: #4b5563;
  --border: #e5e7eb;
  --accent: #0f766e;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.7;
}

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

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

.site-header,
.site-footer {
  background: #fff;
}

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

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.header-inner,
.footer-inner,
.content {
  width: min(100% - 32px, 800px);
  margin: 0 auto;
}

.header-inner,
.footer-inner {
  padding: 20px 0;
}

.brand {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.content {
  padding: 40px 0 56px;
}

h1 {
  margin: 0 0 24px;
  font-size: clamp(2rem, 4vw, 2.5rem);
  line-height: 1.2;
}

h2 {
  margin: 32px 0 12px;
  font-size: 1.2rem;
  line-height: 1.35;
}

p {
  margin: 0 0 16px;
}

ul {
  margin: 0 0 20px;
  padding-left: 22px;
}

li + li {
  margin-top: 8px;
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
}

.footer-text {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 640px) {
  .content {
    padding: 32px 0 48px;
  }
}