:root {
  --bg: #f8f7f4;
  --surface: #ffffff;
  --code-bg: #f1efe9;
  --ink: #1c1917;
  --ink-secondary: #44403c;
  --ink-muted: #78716c;
  --border: #e7e5e4;
  --accent: #1d4ed8;
  --accent-hover: #1e3a8a;
  --font-serif: Georgia, 'Times New Roman', Times, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 17px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.68;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.75rem 1.5rem 4rem;
}

header.site-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 1rem;
  padding-bottom: 1.25rem;
  margin-bottom: 2.75rem;
  border-bottom: 1px solid var(--border);
}

.site-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-title:hover {
  color: var(--accent);
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.9rem;
}

.site-nav a {
  color: var(--ink-secondary);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--ink);
  text-decoration: underline;
}

h1, h2, h3 {
  font-family: var(--font-serif);
  color: var(--ink);
  line-height: 1.28;
  letter-spacing: -0.015em;
}

h1 {
  font-size: 2rem;
  margin: 0 0 0.75rem;
}

h2 {
  font-size: 1.35rem;
  margin: 2.5rem 0 0.85rem;
  padding-top: 0.5rem;
}

h3 {
  font-size: 1.1rem;
  margin: 1.75rem 0 0.6rem;
}

p {
  margin: 0 0 1.2rem;
  color: var(--ink-secondary);
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

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

.meta {
  font-size: 0.88rem;
  color: var(--ink-muted);
  margin-bottom: 2rem;
}

ul, ol {
  margin: 0 0 1.35rem;
  padding-left: 1.4rem;
  color: var(--ink-secondary);
}

li {
  margin-bottom: 0.45rem;
}

li strong {
  color: var(--ink);
}

code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background-color: var(--code-bg);
  color: var(--ink);
  padding: 0.15em 0.35em;
  border-radius: 3px;
}

pre {
  background-color: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  margin: 1.25rem 0 1.6rem;
  line-height: 1.5;
}

pre code {
  background: none;
  padding: 0;
  font-size: 0.82rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.92rem;
}

th, td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

th {
  font-weight: 600;
  color: var(--ink);
  background-color: var(--code-bg);
}

td {
  color: var(--ink-secondary);
}

.note-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 2rem;
}

.note-list li {
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--border);
  margin: 0;
}

.note-list li:first-child {
  border-top: 1px solid var(--border);
}

.note-title {
  font-family: var(--font-serif);
  font-size: 1.08rem;
  font-weight: 600;
  display: block;
  margin-bottom: 0.25rem;
}

.note-summary {
  font-size: 0.92rem;
  color: var(--ink-secondary);
  margin: 0;
}

.project-block {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.project-block:first-of-type {
  border-top: 1px solid var(--border);
}

.project-block h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.project-block p {
  margin: 0;
  font-size: 0.94rem;
}

footer.site-footer {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.86rem;
  color: var(--ink-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@media (max-width: 600px) {
  html {
    font-size: 16px;
  }
  .container {
    padding: 1.75rem 1.15rem 3rem;
  }
  h1 {
    font-size: 1.65rem;
  }
}