/* ===================================================
   contrat.eu — Blog articles (single post)
   =================================================== */

.article-hero {
  padding: 3.5rem 0 2rem;
  background: linear-gradient(180deg, var(--slate-50), var(--white));
  border-bottom: 1px solid var(--slate-100);
}
.article-hero .breadcrumb {
  font-size: .8125rem;
  color: var(--slate-500);
  margin-bottom: 1rem;
}
.article-hero .breadcrumb a { color: var(--slate-600); text-decoration: none; }
.article-hero .breadcrumb a:hover { color: var(--blue-600); }
.article-hero .breadcrumb span { margin: 0 .5rem; color: var(--slate-300); }

.article-hero .article-category {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--blue-700);
  background: var(--blue-50);
  padding: .3125rem .75rem;
  border-radius: 20px;
  margin-bottom: 1rem;
}

.article-hero h1 {
  font-size: clamp(1.875rem, 4.5vw, 2.75rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 1rem;
  max-width: 840px;
}
.article-hero .article-excerpt {
  font-size: 1.125rem;
  color: var(--slate-600);
  line-height: 1.6;
  max-width: 740px;
}
.article-hero .article-meta {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  margin-top: 1.5rem;
  font-size: .8125rem;
  color: var(--slate-500);
  flex-wrap: wrap;
}
.article-hero .article-meta-item { display: inline-flex; align-items: center; gap: .375rem; }

.article-layout {
  padding: 3rem 0 5rem;
  display: grid;
  grid-template-columns: 240px 1fr 240px;
  gap: 3rem;
}

.article-toc {
  position: sticky;
  top: 5rem;
  align-self: start;
  font-size: .8125rem;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}
.article-toc h4 {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--slate-500);
  margin-bottom: .75rem;
  font-weight: 700;
}
.article-toc ol { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .25rem; }
.article-toc a {
  display: block;
  padding: .375rem .625rem;
  color: var(--slate-600);
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: all var(--transition);
  line-height: 1.5;
  text-decoration: none;
}
.article-toc a:hover { background: var(--slate-50); color: var(--slate-900); border-left-color: var(--blue-500); }
.article-toc a.active { color: var(--blue-600); font-weight: 600; border-left-color: var(--blue-500); background: var(--blue-50); }

/* ======= Content ======= */
.article-content {
  max-width: 760px;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--slate-700);
}
.article-content h2 {
  font-size: 1.625rem;
  letter-spacing: -0.01em;
  color: var(--slate-900);
  margin: 3rem 0 1rem;
  scroll-margin-top: 5rem;
}
.article-content h2:first-child { margin-top: 0; }
.article-content h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--slate-900);
  margin: 2rem 0 .75rem;
}
.article-content h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--slate-900);
  margin: 1.5rem 0 .5rem;
}
.article-content p { margin: 0 0 1.125rem; }
.article-content ul,
.article-content ol {
  margin: 0 0 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.article-content li { padding-left: .375rem; }
.article-content strong { color: var(--slate-900); font-weight: 600; }
.article-content a {
  color: var(--blue-600);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
}
.article-content a:hover { color: var(--blue-700); text-decoration-thickness: 2px; }
.article-content blockquote {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--blue-500);
  background: var(--blue-50);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.0625rem;
  color: var(--slate-700);
  font-style: italic;
}
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: .9375rem;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  overflow: hidden;
}
.article-content th,
.article-content td {
  padding: .75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--slate-100);
  vertical-align: top;
}
.article-content th {
  background: var(--slate-50);
  font-weight: 600;
  color: var(--slate-900);
  font-size: .8125rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.article-content tr:last-child td { border-bottom: none; }

.article-content .note {
  background: #fef3c7;
  border-left: 3px solid #f59e0b;
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
  font-size: .9375rem;
}
.article-content .note strong { color: #92400e; }

.article-content .tip {
  background: #ecfdf5;
  border-left: 3px solid #10b981;
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
  font-size: .9375rem;
}
.article-content .tip strong { color: #065f46; }

.article-content .danger {
  background: #fef2f2;
  border-left: 3px solid #ef4444;
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
  font-size: .9375rem;
}
.article-content .danger strong { color: #991b1b; }

.article-content .cta-box {
  margin: 2.5rem 0;
  padding: 2rem;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-700));
  color: #fff;
  border-radius: var(--radius-xl);
  text-align: center;
}
.article-content .cta-box h3 { color: #fff; margin: 0 0 .5rem; font-size: 1.25rem; }
.article-content .cta-box p { color: rgba(255,255,255,.9); margin: 0 0 1.25rem; font-size: .9375rem; }
.article-content .cta-box .btn-white { background: #fff; color: var(--blue-700); }

/* ======= Sidebar right ======= */
.article-sidebar {
  position: sticky;
  top: 5rem;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  font-size: .875rem;
}
.sidebar-card {
  background: var(--white);
  border: 1.5px solid var(--slate-100);
  border-radius: var(--radius-xl);
  padding: 1.25rem;
}
.sidebar-card h4 {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--slate-500);
  margin: 0 0 .75rem;
}
.sidebar-card.cta {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-700));
  color: #fff;
  border-color: transparent;
}
.sidebar-card.cta h4 { color: rgba(255,255,255,.7); }
.sidebar-card.cta p { color: rgba(255,255,255,.9); font-size: .875rem; margin: 0 0 1rem; }
.sidebar-card.cta .btn-white { background: #fff; color: var(--blue-700); width: 100%; justify-content: center; }
.sidebar-card ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .5rem; }
.sidebar-card ul a {
  color: var(--slate-700);
  text-decoration: none;
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  line-height: 1.4;
  font-weight: 500;
  padding: .5rem .625rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.sidebar-card ul a:hover { background: var(--blue-50); color: var(--blue-700); }

/* ======= Related articles ======= */
.article-related {
  padding: 4rem 0;
  background: var(--slate-50);
  border-top: 1px solid var(--slate-200);
}
.article-related h2 {
  font-size: 1.625rem;
  letter-spacing: -0.01em;
  text-align: center;
  margin-bottom: 2.5rem;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

/* ======= Sources section ======= */
.article-sources {
  margin: 3rem 0 2rem;
  padding: 1.75rem 2rem;
  background: var(--slate-50);
  border: 1.5px solid var(--slate-200);
  border-left: 4px solid var(--blue-500);
  border-radius: var(--radius-lg);
}
.article-sources h2 {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--slate-500);
  margin-bottom: 1.25rem;
}
.article-sources ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.article-sources li {
  font-size: .875rem;
  color: var(--slate-600);
  line-height: 1.6;
  padding-left: 1.25rem;
  border-left: 2px solid var(--slate-200);
}
.article-sources li strong {
  color: var(--slate-800);
  display: block;
  margin-bottom: .2rem;
}
.article-sources a {
  color: var(--blue-600);
  font-size: .8125rem;
  word-break: break-all;
}
.article-sources a:hover { text-decoration: underline; }

/* ======= Responsive ======= */
@media (max-width: 1100px) {
  .article-layout { grid-template-columns: 220px 1fr; gap: 2rem; }
  .article-sidebar { display: none; }
}
@media (max-width: 768px) {
  .article-layout { grid-template-columns: 1fr; padding: 2rem 0 3rem; }
  .article-toc { display: none; }
  .article-content { font-size: 1rem; }
  .article-content h2 { font-size: 1.375rem; }
  .related-grid { grid-template-columns: 1fr; }
}