:root {
  --color-text: #222222;
  --color-muted: #5a5a5a;
  --color-border: #e6e6e6;
  --color-background: #ffffff;
  --color-accent: #3b82c4;
  --max-width: 680px;
  --font-body: "Source Serif 4", Georgia, "Iowan Old Style", serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-background);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0;
  padding: 72px 40px 48px 40px;
  flex: 1;
}

.container-wide {
  max-width: 980px;
}

/* Page layout with left sidebar */

.page {
  display: flex;
  max-width: 1260px;
  margin: 0 auto;
}

.sidebar {
  width: 140px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 72px 0 0 24px;
}

.sidebar a {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.sidebar a.active {
  color: var(--color-text);
  font-weight: 600;
}

/* Page header (non-hero pages, e.g. Writings) */

.page-header {
  margin-bottom: 44px;
}

.page-header h1 {
  margin-bottom: 6px;
}

/* Hero */

.hero {
  display: flex;
  gap: 24px;
  align-items: center;
  margin-bottom: 28px;
}

.headshot {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

h1 {
  margin: 0 0 6px 0;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.subtitle {
  margin: 0 0 10px 0;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.links {
  margin: 0;
  font-size: 0.95rem;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.summary {
  margin: 0 0 44px 0;
  color: var(--color-text);
}

/* Sections */

section {
  margin-bottom: 40px;
}

section h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 22px 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.entry {
  margin-bottom: 24px;
}

.entry:last-child {
  margin-bottom: 0;
}

.entry-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px 16px;
}

.entry-header h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
}

.entry-date {
  color: var(--color-muted);
  font-size: 0.9rem;
  white-space: nowrap;
}

.entry-sub {
  margin: 3px 0 8px 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.entry ul {
  margin: 8px 0 0 0;
  padding-left: 20px;
}

.entry li {
  margin-bottom: 4px;
}

/* Writings list */

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.post-item {
  margin-bottom: 24px;
}

.post-item .entry-header h3 {
  color: var(--color-text);
}

.post-item a {
  color: inherit;
}

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

/* San Francisco gallery */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.gallery-item {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
}

.gallery-item iframe,
.gallery-item .instagram-media {
  max-width: 100% !important;
}

/* Post page */

.post-header {
  margin-bottom: 32px;
}

.post-header h1 {
  margin-bottom: 8px;
}

article p {
  margin-bottom: 20px;
}

/* Footer */

footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

footer p {
  color: var(--color-muted);
  font-size: 0.85rem;
  margin: 0;
}

/* Responsive */

@media (max-width: 720px) {
  .page {
    flex-direction: column;
  }

  .sidebar {
    flex-direction: row;
    width: auto;
    gap: 24px;
    padding: 32px 24px 0 24px;
  }

  .container {
    padding-top: 32px;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .hero {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
}