:root {
  --color-bg: #0b0f1a;
  --color-surface: #131a2b;
  --color-border: #232c42;
  --color-text: #e5e9f2;
  --color-text-muted: #9aa5bd;
  --color-accent: #4d8dff;
  --color-accent-soft: #7db2ff;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

.site-header {
  padding: 24px 20px;
  border-bottom: 1px solid var(--color-border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 720px;
  margin: 0 auto;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 15px;
  color: #ffffff;
  background: linear-gradient(160deg, var(--color-accent), var(--color-accent-soft));
}

.brand-name {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.content {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 24px;
}

h1 {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--color-text);
}

.updated {
  color: var(--color-text-muted);
  font-size: 13px;
  margin: 0 0 28px;
}

section {
  margin: 28px 0;
  padding: 18px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

h2 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-accent-soft);
  margin: 0 0 10px;
}

p {
  margin: 0 0 10px;
  color: var(--color-text);
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 0 0 10px;
  padding-left: 20px;
}

ul:last-child {
  margin-bottom: 0;
}

li {
  margin-bottom: 6px;
  color: var(--color-text);
}

li:last-child {
  margin-bottom: 0;
}

strong {
  color: var(--color-text);
}

a {
  color: var(--color-accent-soft);
  text-decoration: underline;
}

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

.site-footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px;
  border-top: 1px solid var(--color-border);
}

.site-footer p {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

@media (max-width: 480px) {
  .content {
    padding: 28px 16px 16px;
  }

  h1 {
    font-size: 22px;
  }

  section {
    padding: 16px;
  }
}