:root {
  --color-primary-dark: #000000;
  --color-surface: #b4b4b4;
  --color-white: #ffffff;
  --color-ink: #000000;
  --color-accent: #39b54a;
  --color-cta: #1800ad;

  --font-primary: 'Days One', system-ui, sans-serif;
  --font-secondary: 'Manrope', system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-secondary);
  color: var(--color-ink);
  background-color: var(--color-white);
  line-height: 1.6;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* header */

.site-header {
  border-bottom: 1px solid var(--color-surface);
  padding: 1.5rem 0;
  margin: 0 auto;
}

.header-inner {
  display: flex;
  justify-content: start;
  align-items: center;
  gap: 0.5rem;
  max-width: 800px;
}

.brand {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  color: var(--color-ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}

/* contenido */

.content {
  padding: 3rem 1.5rem 4rem;
}

.content h1 {
  font-family: var(--font-primary);
  font-size: 2rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.updated {
  color: rgba(0, 0, 0, 0.6);
  font-size: 0.875rem;
  margin-bottom: 2rem;
}

.content > p {
  margin-bottom: 2rem;
  max-width: 65ch;
}

.content section {
  margin-bottom: 2.5rem;
}

.content h2 {
  font-family: var(--font-secondary);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.content p {
  max-width: 65ch;
  margin-bottom: 0.75rem;
}

.content ul {
  max-width: 65ch;
  padding-left: 1.25rem;
  margin-bottom: 0.75rem;
}

.content li {
  margin-bottom: 0.4rem;
}

.content a {
  color: var(--color-cta);
  text-decoration: underline;
}

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

/* footer */

.site-footer {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  padding: 2rem 0;
  border-top: 2px solid var(--color-cta);
}

.site-footer p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
}

/* responsive */

@media (max-width: 480px) {
  .content {
    padding: 2rem 1.25rem 3rem;
  }

  .content h1 {
    font-size: 1.75rem;
  }
}