/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #FAF6ED;
  --text: #2F3630;
  --accent: #5B7A5E;
  --accent-hover: #476349;
  --card-bg: #FFFFFF;
  --callout-bg: #EBE8E0;
  --callout-border: #5B7A5E;
  --blockquote-border: #C4BDAE;
  --muted: #7B7567;
  --font-body: 'Source Serif 4', Georgia, serif;
  --font-ui: 'Inter', system-ui, sans-serif;
}

html { font-size: 17px; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* === Layout === */
main {
  max-width: 680px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s;
}
a:hover { color: var(--accent-hover); }

/* === Header === */
.site-header {
  border-bottom: 1px solid var(--blockquote-border);
  background: var(--bg);
}

.header-inner {
  max-width: 680px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.5rem;
}

.site-name {
  font-family: var(--font-ui);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
}
.site-name:hover { color: var(--accent); }

.tagline {
  font-size: 0.9rem;
  color: var(--muted);
  flex: 1 1 100%;
  margin: -0.25rem 0 0;
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-ui);
  font-size: 0.9rem;
}

.site-nav svg {
  vertical-align: middle;
  color: var(--muted);
  transition: color 0.15s;
}
.site-nav a:hover svg { color: var(--accent); }

/* === Feed Card === */
.feed-card {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 2rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 4px rgba(61, 50, 41, 0.08);
}

.card-content p { margin-bottom: 1rem; }
.card-content p:last-child { margin-bottom: 0; }

.card-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.card-content blockquote {
  border-left: 3px solid var(--blockquote-border);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--muted);
  font-style: italic;
}

.card-content blockquote p { margin-bottom: 0.5rem; }

.card-footer {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--callout-bg);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--muted);
}

.card-categories a {
  color: var(--muted);
  background: var(--callout-bg);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.card-categories a:hover {
  color: var(--accent);
}

/* === Source Callout === */
.source-callout {
  background: var(--callout-bg);
  border-left: 4px solid var(--callout-border);
  border-radius: 0 6px 6px 0;
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  line-height: 1.5;
}

.source-label {
  color: var(--muted);
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.2rem;
}

.source-title {
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.source-domain {
  color: var(--muted);
  font-size: 0.8rem;
  margin-left: 0.25rem;
}
.source-domain::before { content: "· "; }

/* === Single Post === */
.single-post .post-title {
  font-family: var(--font-ui);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  line-height: 1.3;
}

/* === List Page === */
.list-page h1 {
  font-family: var(--font-ui);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.post-list {
  list-style: none;
}

.post-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--callout-bg);
}

.post-list time {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
  margin-left: 1rem;
}

/* === Footer === */
.site-footer {
  border-top: 1px solid var(--blockquote-border);
  margin-top: 2rem;
}

.footer-inner {
  max-width: 680px;
  margin: 0 auto;
  padding: 1.25rem;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--muted);
}

/* === About Page === */
.single-post .card-content h1,
.single-post .card-content h2,
.single-post .card-content h3 {
  font-family: var(--font-ui);
  margin: 1.5rem 0 0.75rem;
  line-height: 1.3;
}

/* === Responsive === */
@media (max-width: 600px) {
  html { font-size: 16px; }
  .feed-card { padding: 1.25rem; }
  .header-inner { padding: 1rem; }
  .single-post .post-title { font-size: 1.3rem; }
}