:root {
  --bg: #f9f7f5;
  --bg-elevated: #ffffff;
  --text: #1a1815;
  --text-secondary: #6b6561;
  --text-tertiary: #a89f95;
  --border: #e8e3dd;
  --accent: #a89968;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 60px;
  --space-xxl: 100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  font-weight: 400;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

h1, h2, h3, h4, p {
  margin: 0;
}

h1 {
  font-size: clamp(34px, 6vw, 48px);
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
}

h2 {
  font-size: clamp(22px, 3.5vw, 28px);
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

h3 {
  font-size: 18px;
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: -0.005em;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
  line-height: 1.8;
}

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

.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

header {
  position: sticky;
  top: 0;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 50;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: var(--space-md) 0;
}

.brand {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.nav-links a {
  color: var(--text-tertiary);
  transition: color 200ms ease;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--accent);
}

main {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xxl);
}

/* Blog index */
.blog-header {
  margin-bottom: var(--space-xl);
}

.blog-header .eyebrow {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.post-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 760px;
}

.post-card {
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.post-card:last-child {
  border-bottom: none;
}

.post-card .post-meta {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: var(--space-xs);
  letter-spacing: 0.02em;
}

.post-card h3 {
  margin-top: 0;
  font-size: 22px;
  font-weight: 500;
}

.post-card h3 a {
  transition: color 200ms ease;
}

.post-card h3 a:hover {
  color: var(--accent);
}

.post-card p {
  margin-bottom: 0;
}

/* Article */
.article-header {
  max-width: 760px;
  margin-bottom: var(--space-xl);
}

.article-header .post-meta {
  font-size: 13px;
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-sm);
}

.article-header .back-link {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-lg);
  transition: color 200ms ease;
}

.article-header .back-link:hover {
  color: var(--accent);
}

.prose {
  max-width: 760px;
}

.prose ul,
.prose ol {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
  padding-left: 1.25em;
}

.prose li {
  margin-bottom: var(--space-xs);
}

.prose strong {
  color: var(--text);
  font-weight: 600;
}

.prose blockquote {
  margin: var(--space-lg) 0;
  padding-left: var(--space-md);
  border-left: 3px solid var(--accent);
  color: var(--text);
  font-style: italic;
}

footer {
  border-top: 1px solid var(--border);
  padding: var(--space-lg) 0;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: 13px;
  color: var(--text-tertiary);
}

.footer-links {
  display: flex;
  gap: var(--space-md);
}

.footer-links a {
  color: var(--text-tertiary);
  transition: color 200ms ease;
}

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

@media (max-width: 640px) {
  .nav-links {
    gap: var(--space-sm);
    font-size: 12px;
  }
}