/* ===================================================
   Cahiers du Socialisme — style éditorial / revue
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@400;500;600&display=swap');

:root {
  --color-text: #1a1a1a;
  --color-text-soft: #444444;
  --color-bg: #fbfaf7;
  --color-accent: #7a1f1f;
  --color-border: #ddd8cf;
  --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, sans-serif;
  --max-width: 720px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-serif);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.65;
  font-size: 19px;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

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

/* ---------- En-tête du site ---------- */

.site-header {
  border-bottom: 3px solid var(--color-text);
  padding: 2.5rem 1.5rem 1.5rem;
  text-align: center;
}

.site-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 2.6rem;
  margin: 0;
  letter-spacing: -0.01em;
}

.site-title a {
  color: var(--color-text);
  border-bottom: none;
}

.site-subtitle {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text-soft);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 0.6rem;
}

.site-nav {
  margin-top: 1.2rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.site-nav a {
  margin: 0 0.8rem;
  color: var(--color-text);
  border-bottom: 1px solid transparent;
}

.site-nav a:hover {
  border-bottom-color: var(--color-text);
}

/* ---------- Contenu principal ---------- */

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

/* ---------- Liste d'articles (page d'accueil) ---------- */

.post-list-item {
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--color-border);
}

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

.post-list-item .post-title {
  font-size: 1.7rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.post-list-item .post-title a {
  color: var(--color-text);
  border-bottom: none;
}

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

.post-meta {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.8rem;
}

.post-excerpt {
  color: var(--color-text-soft);
}

.read-more {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- Article individuel ---------- */

.post-header {
  margin-bottom: 2.5rem;
}

.post-header .post-title {
  font-size: 2.4rem;
  line-height: 1.2;
  margin: 0 0 0.8rem;
}

.post-content {
  font-size: 1.05rem;
}

.post-content h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.4rem;
}

.post-content h3 {
  font-size: 1.2rem;
  margin-top: 2rem;
}

.post-content p {
  margin: 1.3rem 0;
}

.post-content img {
  max-width: 100%;
  height: auto;
  margin: 2rem 0;
  display: block;
}

.post-content blockquote {
  margin: 2rem 0;
  padding: 0.5rem 0 0.5rem 1.5rem;
  border-left: 3px solid var(--color-accent);
  font-style: italic;
  color: var(--color-text-soft);
}

.post-content figure {
  margin: 2rem 0;
}

.post-content figcaption {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-soft);
  text-align: center;
  margin-top: 0.5rem;
}

.post-content a {
  text-decoration: underline;
}

.post-tags {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.post-tags a {
  display: inline-block;
  margin: 0 0.5rem 0.5rem 0;
  padding: 0.2rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  color: var(--color-text-soft);
}

/* ---------- Pied de page ---------- */

.site-footer {
  text-align: center;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-soft);
  padding: 2.5rem 1.5rem;
  border-top: 1px solid var(--color-border);
}

/* ---------- Responsive ---------- */

@media (max-width: 600px) {
  body { font-size: 17px; }
  .site-title { font-size: 2rem; }
  .post-header .post-title { font-size: 1.9rem; }
  main { padding: 2rem 1.2rem 3rem; }
}