@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:ital,wght@0,400;0,600;1,400&display=swap');

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

body {
  font-family: 'Crimson Pro', Palatino, 'Palatino Linotype', Georgia, serif;
  font-size: 17px;
  line-height: 1.6;
  color: #333;
  background: #fff;
}

a {
  color: #333;
  text-decoration: none;
  border-bottom: 1px solid #ccc;
}

a:hover {
  border-bottom-color: #333;
}

/* Header */
header {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.logo a {
  border: none;
}

.logo img {
  height: 28px;
  display: block;
}

nav {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 14px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

nav a {
  margin-left: 2rem;
  border: none;
  color: #666;
}

nav a:hover {
  color: #333;
}

/* Main content */
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* Article layout with sidenote margin */
.article-body {
  max-width: 600px;
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.meta {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 13px;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
}

h2 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

blockquote {
  border-left: 2px solid #ddd;
  padding-left: 1rem;
  margin: 1.5rem 0;
  color: #555;
  font-style: italic;
}

/* Sidenotes */
.sidenote {
  float: right;
  clear: right;
  width: 220px;
  margin-right: -260px;
  font-size: 13px;
  line-height: 1.4;
  color: #888;
  margin-top: 0.2rem;
}

/* Simple bar charts using divs */
.bar-chart {
  margin: 1.5rem 0;
  max-width: 400px;
}

.bar-chart .bar-row {
  display: flex;
  align-items: center;
  margin-bottom: 6px;
  font-size: 13px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

.bar-chart .bar-label {
  width: 100px;
  text-align: right;
  padding-right: 10px;
  color: #666;
  flex-shrink: 0;
}

.bar-chart .bar {
  height: 18px;
  background: #555;
  min-width: 2px;
}

.bar-chart .bar-value {
  padding-left: 6px;
  color: #999;
  font-size: 12px;
}

.bar-chart .bar.highlight {
  background: #b33;
}

.bar-chart .bar.muted {
  background: #bbb;
}

.bar-chart .bar.accent {
  background: #369;
}

/* Principles box */
.principles {
  border: 1px solid #ddd;
  padding: 1.5rem 2rem;
  margin-top: 2.5rem;
  background: #fafafa;
}

.principles h2 {
  margin-top: 0;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-weight: 600;
}

.principles ol {
  padding-left: 1.2rem;
}

.principles li {
  margin-bottom: 0.4rem;
  font-size: 15px;
}

/* Tables */
table {
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 15px;
  width: 100%;
  max-width: 500px;
}

th, td {
  text-align: left;
  padding: 6px 12px;
  border-bottom: 1px solid #ddd;
}

th {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #999;
  font-weight: 600;
}

/* Index page */
.post-list {
  list-style: none;
  margin-top: 1rem;
}

.post-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.post-list .post-title {
  font-size: 1.05rem;
}

.post-list .post-date {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 12px;
  color: #999;
  flex-shrink: 0;
  margin-left: 1rem;
}

/* About page */
.about-photo {
  width: 160px;
  margin-bottom: 1.5rem;
  filter: grayscale(20%);
}

.contact-info {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 14px;
  color: #666;
  margin-top: 1.5rem;
}

.contact-info a {
  color: #666;
}

/* Footer */
footer {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 12px;
  color: #bbb;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-top: 1px solid #eee;
}

/* Responsive */
@media (max-width: 960px) {
  .sidenote {
    float: none;
    width: 100%;
    margin: 0.5rem 0 1rem;
    padding: 0.5rem;
    background: #f9f9f9;
    border-left: 2px solid #ddd;
  }
}

@media (max-width: 600px) {
  header {
    padding: 1.5rem 1rem 0.5rem;
  }
  main {
    padding: 1.5rem 1rem 3rem;
  }
  h1 {
    font-size: 1.5rem;
  }
  .post-list li {
    flex-direction: column;
  }
  .post-list .post-date {
    margin-left: 0;
    margin-top: 0.2rem;
  }
}