/* blog.css — charte E&B Escalier Suspendu, alignée sur tailwind.config.js */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --luxury-dark: #221A25;
  --luxury-charcoal: #32323D;
  --luxury-taupe: #A7A195;
  --luxury-beige: #B2AA8E;
  --luxury-warm: #BD996C;
  --luxury-greige: #A5907C;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --white: #ffffff;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--gray-50);
  color: var(--gray-700);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== Header ===== */
.blog-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.blog-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.blog-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--luxury-warm);
  line-height: 1.1;
  flex-shrink: 0;
}

.blog-logo img {
  height: 40px;
  width: auto;
}

.blog-logo span {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--gray-400);
  letter-spacing: 0.025em;
}

.blog-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.blog-nav a {
  color: var(--gray-600);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.3s;
}

.blog-nav a:hover {
  color: var(--luxury-warm);
}

.blog-header-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--luxury-warm);
  color: var(--white);
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  font-weight: 700;
  text-decoration: none;
  font-size: 1rem;
  box-shadow: 0 4px 14px -2px rgba(189, 153, 108, 0.5);
  transition: background 0.3s, box-shadow 0.3s, transform 0.2s;
  white-space: nowrap;
}

.blog-header-cta:hover {
  background: var(--luxury-greige);
  box-shadow: 0 8px 20px -2px rgba(189, 153, 108, 0.6);
  transform: translateY(-1px);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding-top: 5rem;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
}

.breadcrumb-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 1.5rem 1rem 1rem;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--luxury-warm);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.3s;
}

.breadcrumb a:hover {
  color: var(--luxury-greige);
}

.breadcrumb span {
  color: var(--gray-400);
  font-size: 0.875rem;
}

/* ===== Main / Article ===== */
.blog-main {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 1rem 4rem;
}

.blog-article h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--luxury-dark);
  line-height: 1.2;
  margin-bottom: 2rem;
}

.blog-article h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--luxury-dark);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.blog-article h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.blog-article p {
  font-size: 1.0625rem;
  color: var(--gray-600);
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.blog-article a {
  color: var(--luxury-warm);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.3s;
}

.blog-article a:hover {
  color: var(--luxury-greige);
}

.blog-article ul,
.blog-article ol {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.blog-article ul {
  list-style: disc;
}

.blog-article ol {
  list-style: decimal;
}

.blog-article li {
  margin-bottom: 0.5rem;
}

.blog-article strong {
  color: var(--gray-800);
  font-weight: 600;
}

.blog-article blockquote {
  border-left: 4px solid var(--luxury-warm);
  padding: 0.5rem 0 0.5rem 1.5rem;
  margin: 1.5rem 0;
  color: var(--gray-500);
  font-style: italic;
}

/* ===== Conclusion ===== */
.blog-conclusion {
  margin-top: 2.5rem;
  padding: 1.5rem 2rem;
  background: var(--gray-100);
  border-radius: 0.75rem;
  border-left: 4px solid var(--luxury-warm);
}

.blog-conclusion p {
  margin-bottom: 0;
  color: var(--gray-700);
}

/* ===== Articles similaires ===== */
.similar {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-200);
}

.similar h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--luxury-dark);
  margin-bottom: 1.25rem;
}

.similar ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.similar a {
  display: block;
  padding: 0.75rem 1.25rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 0.5rem;
  color: var(--luxury-warm);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: border-color 0.3s, background 0.3s, color 0.3s;
}

.similar a:hover {
  border-color: var(--luxury-warm);
  background: rgba(189, 153, 108, 0.05);
  color: var(--luxury-greige);
}

/* ===== CTA ===== */
.blog-cta {
  margin-top: 2.5rem;
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, var(--luxury-warm), var(--luxury-greige));
  border-radius: 1rem;
  color: var(--white);
}

.blog-cta h2 {
  color: var(--white);
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 1.5rem;
}

.blog-cta p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.blog-cta a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--white);
  color: var(--luxury-warm);
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  font-weight: 600;
  text-decoration: none;
  font-size: 1.0625rem;
  transition: background 0.3s;
}

.blog-cta a:hover {
  background: var(--gray-50);
}

/* ===== Blog index page ===== */
.blog-index-main {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 1rem 4rem;
}

.blog-index-main h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--luxury-dark);
  margin-bottom: 2rem;
}

.cluster-group {
  margin-bottom: 1.25rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.75rem;
  overflow: hidden;
}

.cluster-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: var(--white);
  border: none;
  cursor: pointer;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--luxury-warm);
  font-family: 'Inter', sans-serif;
  transition: background 0.3s;
}

.cluster-toggle:hover {
  background: rgba(189, 153, 108, 0.05);
}

.cluster-toggle .cluster-icon {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--luxury-warm);
  transition: transform 0.3s;
}

.cluster-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.cluster-content ul {
  list-style: none;
  margin: 0;
  padding: 0.5rem 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cluster-content a {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--luxury-warm);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: background 0.3s, color 0.3s;
}

.cluster-content a:hover {
  background: rgba(189, 153, 108, 0.07);
  color: var(--luxury-greige);
}

/* ===== Article images ===== */
.article-hero-img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 0.75rem;
  margin-bottom: 2rem;
}

.article-mid-img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: 0.75rem;
  margin: 2rem 0;
}

@media (max-width: 768px) {
  .article-hero-img {
    height: 200px;
  }
  .article-mid-img {
    height: 180px;
  }
}

/* ===== Footer ===== */
.blog-footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 2rem 1rem;
}

.blog-footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
  font-size: 0.875rem;
}

.blog-footer a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color 0.3s;
}

.blog-footer a:hover {
  color: var(--white);
}

.blog-footer .brand {
  color: var(--luxury-warm);
  font-weight: 600;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .blog-article h1 {
    font-size: 1.75rem;
  }
  .blog-article h2 {
    font-size: 1.4rem;
  }
  .blog-index-main h1 {
    font-size: 2rem;
  }
  .blog-header-cta {
    display: none;
  }
  .blog-logo {
    font-size: 1.25rem;
  }
  .blog-logo span {
    display: none;
  }
}