/* ============================================
   Reset & Base Typography
   ============================================ */

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
ul, ol { list-style: none; }

/* Body — Source Sans 3 */
body {
  font-family: var(--font-body);
  background: var(--bg-white);
  color: var(--ink);
  line-height: 1.75;
  font-weight: 400;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Headings — Spectral serif */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--ink);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.005em;
}
h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.15; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); line-height: 1.25; font-weight: 600; }
h3 { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.125rem, 2vw, 1.5rem); line-height: 1.35; }

/* Meta text — Bricolage Grotesque uppercase */
.meta, .date, .tag {
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--body);
}

/* Links */
a { color: var(--sky); text-decoration: none; transition: color var(--transition), opacity var(--transition); }
a:hover { color: var(--primary-dark); }

/* Body text links — elegant underline */
.article-content a:not(.btn):not(.article-share a),
.manifeste-block a,
.about__text a,
p a:not(.btn) {
  color: var(--sky);
  text-decoration: underline;
  text-decoration-color: rgba(45, 91, 215,0.3);
  text-underline-offset: 2px;
  transition: text-decoration-color 0.2s ease, color var(--transition);
}
.article-content a:not(.btn):not(.article-share a):hover,
.manifeste-block a:hover,
.about__text a:hover,
p a:not(.btn):hover {
  text-decoration-color: rgba(45, 91, 215,1);
}

/* Old animated underline removed — replaced by text-decoration underline above */

/* Accessibility */
.skip-link {
  position: absolute; top: -100%; left: 50%; transform: translateX(-50%);
  background: var(--primary-dark); color: var(--text-light-on-dark); padding: .5rem 1.5rem;
  border-radius: var(--radius-sm); z-index: var(--z-skip); font-size: .9rem;
}
.skip-link:focus { top: .5rem; }

/* Layout containers */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 4rem; }
.container-narrow { max-width: 800px; margin: 0 auto; padding: 0 4rem; }

/* Blockquote */
blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 1.5rem 2rem;
  background: rgba(45, 91, 215,0.05);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 1.1rem; font-style: italic;
  line-height: 1.7;
  margin: 2rem 0;
  position: relative;
}
blockquote::before {
  content: '\00AB';
  position: absolute;
  top: -0.15em;
  left: 0.3rem;
  font-family: var(--font-heading);
  font-size: 3rem;
  color: var(--color-accent);
  opacity: 0.35;
  line-height: 1;
  font-style: normal;
}
blockquote cite {
  display: block; margin-top: .75rem;
  font-size: .85rem; font-style: normal;
  color: var(--muted);
}

/* Breadcrumb */
.breadcrumb {
  display: flex; align-items: center; gap: .35rem;
  font-size: .85rem; color: rgba(255,255,255,.8);
  margin-bottom: 1rem;
  font-weight: 400;
  letter-spacing: .02em;
}
.breadcrumb a { color: rgba(255,255,255,.8); transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--text-light-on-dark); }
.breadcrumb .sep { margin: 0 .25rem; opacity: 0.5; }

/* Article content — base rules (enhanced in publications.css) */
.article-content p { margin-bottom: 1.5em; line-height: 1.8; font-size: 1.125rem; color: var(--text-dark); }
.article-content h3 { margin-top: 2rem; margin-bottom: .75rem; font-size: 1.25rem; }
.article-content ul { padding-left: 1.5rem; margin-bottom: 1rem; }
.article-content ul li { margin-bottom: .5rem; line-height: 1.7; color: var(--text-dark); }
.article-content strong { color: var(--navy, #1B2A4A); font-weight: 600; }
.article-content em { letter-spacing: 0.01em; }

.translation-notice {
  background: var(--color-accent-pale);
  border-left: 4px solid var(--color-accent);
  color: var(--color-text);
  padding: .9rem 1.1rem;
  margin: 0 0 1.75rem;
  border-radius: 4px;
  font-size: .95rem;
  line-height: 1.5;
}
.translation-notice strong { color: var(--navy, #1B2A4A); }

@media (max-width: 900px) {
  .container, .container-narrow { padding: 0 2.5rem; }
}
@media (max-width: 640px) {
  .container, .container-narrow { padding: 0 1.5rem; }
}

/* ============================================
   Dark Mode — Base overrides
   ============================================ */
@media (prefers-color-scheme: dark) {
  body { background: var(--bg-white); color: var(--text-dark); }
  h1, h2, h3, h4, h5, h6 { color: var(--ink); }
  a { color: var(--cyan); }
  a:hover { color: var(--sky); }

  /* Cards */
  .card, .pub-card, .team-card, .enjeu-card, .event-card,
  .download-card, .doc-card, .related-pub-card { background: var(--card-bg); border-color: var(--border); color: var(--text-dark); }

  /* Form inputs */
  input, textarea, select { background: var(--card-bg); color: var(--text-dark); border-color: var(--border); }
  input::placeholder, textarea::placeholder { color: var(--steel); }

  /* Blockquote */
  blockquote { background: rgba(30, 41, 59, .5); border-left-color: var(--sky); }

  /* Article content */
  .article-content p { color: var(--text-dark); }
  .article-content ul li { color: var(--text-dark); }

  /* Sections with white backgrounds */
  .section--white, .section--light, [style*="background:#fff"],
  [style*="background: #fff"], [style*="background:white"],
  [style*="background: white"] { background: var(--bg-white); }

  /* Quote card */
  .quote-card { background: var(--card-bg); }

  /* Search overlay inputs */
  #siteSearch { background: var(--card-bg); color: var(--text-dark); border-color: var(--border); }
  .search-results { background: var(--card-bg); }
  .search-result-item:hover { background: rgba(51, 65, 85, .5); }

  /* Back to top */
  .btt { background: rgba(30, 41, 59, .95); color: #fff; }
  .btt:hover { color: #fff; }

  /* Tags */
  .tag { background: var(--card-bg); color: var(--text-dark); }

  /* Load more button */
  .load-more-btn { border-color: var(--sky); color: var(--sky); }
  .load-more-btn:hover { background: var(--sky); color: var(--bg-white); }

  /* Download / doc cards */
  .download-card .dl-icon, .doc-icon { background: var(--card-bg); }

  /* Sort dropdown */
  .pub-sort select { background: var(--card-bg); color: var(--text-dark); border-color: var(--border); }

  /* Author block */
  .article-author-block { background: var(--card-bg); }

  /* Official link */
  .article-official-link { background: var(--card-bg); border-color: var(--border); color: var(--sky); }

  /* Marquee */
  .marquee-section { background: var(--bg-white); border-color: var(--border); }

  /* Stat number */
  .stat-number { color: var(--ink); }
  .hero__stat-num.stat-number { color: #ffffff !important; }

  /* Selection */
  ::selection { background: rgba(30, 58, 138, .3); color: var(--text-dark); }

  /* Scrollbar */
  ::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, .3); }
  ::-webkit-scrollbar-thumb:hover { background: rgba(148, 163, 184, .5); }

  /* Images brightness adjustment */
  img:not([src*=".svg"]) { filter: brightness(.92); }

  /* Navigation */
  .nav { background: rgba(15, 23, 42, .92); border-bottom-color: rgba(51, 65, 85, .7); }
  .nav.scrolled { background: rgba(15, 23, 42, .97); }
  .nav-logo { color: var(--text-dark); }
  .nav-links > li > a, .nav-links > li > button { color: var(--body); }
  .nav-links > li > a:hover, .nav-links > li > button:hover,
  .nav-links > li > a.active { color: var(--text-dark); background: rgba(51, 65, 85, .5); }

  /* Filter bar */
  .filter-bar { background: rgba(15, 23, 42, .98); border-bottom-color: var(--border); }
  .filter-pill { background: var(--card-bg); border-color: var(--border); color: var(--body); }
  .filter-pill:hover { border-color: var(--sky); color: var(--sky); background: rgba(51, 65, 85, .5); }
  .filter-pill.active { background: var(--sky); color: #ffffff; border-color: var(--sky); }

  /* Theme cards */
  .theme-card h3 { color: var(--ink); }
  .theme-card p { color: var(--muted); }
  .featured-side h3 { color: var(--ink); }
  .event-card-hp__body h3 { color: var(--ink); }

  /* Publication card tags — derived from canonical pole variables (auto light/dark) */
  .pub-card-tag.tag-ecologie     { background: color-mix(in srgb, var(--color-ecologie) 15%, transparent);     color: var(--color-ecologie); }
  .pub-card-tag.tag-economie     { background: color-mix(in srgb, var(--color-economie) 15%, transparent);     color: var(--color-economie); }
  .pub-card-tag.tag-institutions { background: color-mix(in srgb, var(--color-institutions) 15%, transparent); color: var(--color-institutions); }
  .pub-card-tag.tag-social       { background: color-mix(in srgb, var(--color-social) 15%, transparent);       color: var(--color-social); }
  .pub-card-tag.tag-international { background: color-mix(in srgb, var(--color-international) 15%, transparent); color: var(--color-international); }
  .pub-card-tag.tag-culture      { background: color-mix(in srgb, var(--color-culture) 15%, transparent);      color: var(--color-culture); }

  /* Publication card title should be bright */
  .pub-card-title { color: var(--ink); }
  .pub-card-title a { color: var(--ink); }
  .pub-card-title a:hover { color: var(--sky); }

  /* Related publication cards */
  .related-pub-card-title { color: var(--ink); }
  .related-pub-card { background: var(--card-bg); border-color: var(--border); }

  /* Article author */
  .article-author-name { color: var(--ink); }
  .article-official-link { color: var(--sky); }

  /* Pillar cards on team page */
  .pillar-card { background: var(--card-bg); border-color: var(--border); }

  /* FAQ */
  .faq-question { background: var(--card-bg); color: var(--ink); }
  .faq-question:hover { background: rgba(51, 65, 85, .5); }

  /* Section navy — keep distinct */
  .section-navy { background: #0a1628; }

  /* Team card description text */
  .team-card .team-desc { color: var(--body); }

  /* Dropdown menus */
  .dropdown-menu { background: var(--card-bg); border-color: var(--border); }
  .dropdown-menu a { color: var(--body); }
  .dropdown-menu a:hover { background: rgba(51, 65, 85, .5); color: var(--text-dark); }
}

/* Enhanced focus visibility */
:focus-visible {
  outline: 2px solid var(--sky, #4A90D9);
  outline-offset: 2px;
}