/* =============================================================================
   PAGE BLOG - France-USA-Net.Com
   Cohérent avec route_66 / independance_war / guerre_secession
   ============================================================================= */

:root {
  --blog-blue-dark: #0a2463;
  --blog-blue: #3a86ff;
  --blog-red: #d7263d;
  --blog-red-light: #ef233c;
  --blog-white: #ffffff;
  --blog-light: #f8f9fa;
  --blog-ink: #10182b;
  --blog-ink-soft: #45506b;
  --blog-border: rgba(10, 36, 99, 0.12);
  --blog-shadow: 0 12px 32px rgba(10, 36, 99, 0.1);
  --blog-us-gradient: linear-gradient(90deg, #0a2463 0%, #ffffff 42%, #ffffff 58%, #d7263d 100%);

  --tag-diplomatie: #0a4080;
  --tag-diplomatie-bg: rgba(58, 134, 255, 0.14);
  --tag-defense: #8b1a2b;
  --tag-defense-bg: rgba(215, 38, 61, 0.12);
  --tag-economie: #7a4a1e;
  --tag-economie-bg: rgba(184, 112, 58, 0.15);
  --tag-environnement: #1a5c40;
  --tag-environnement-bg: rgba(26, 92, 64, 0.14);
  --tag-immigration: #1a3d32;
  --tag-immigration-bg: rgba(44, 95, 78, 0.14);
  --tag-culture: #9a3412;
  --tag-culture-bg: rgba(194, 65, 12, 0.12);
  --tag-education: #5b21b6;
  --tag-education-bg: rgba(88, 28, 135, 0.12);
  --tag-tourisme: #0e7490;
  --tag-tourisme-bg: rgba(14, 116, 144, 0.14);
  --tag-memoire: #4a5568;
  --tag-memoire-bg: rgba(74, 85, 104, 0.14);
  --tag-geopolitique: #991b1b;
  --tag-geopolitique-bg: rgba(153, 27, 27, 0.12);
}

html {
  scroll-behavior: smooth;
}

.blog-page {
  background: var(--blog-light);
}

/* Hero */
.blog-page .blog-hero-banner {
  background: linear-gradient(160deg, var(--blog-blue-dark) 0%, #1a3a6e 55%, #2d1b3d 100%);
  overflow: hidden;
}

.blog-page .blog-hero-banner img {
  width: 100%;
  height: auto;
  max-height: min(68vh, 480px);
  object-fit: contain;
  object-position: center;
  display: block;
}

.blog-page .blog-hero-banner::after {
  content: "";
  display: block;
  height: 4px;
  background: var(--blog-us-gradient);
}

.blog-page .blog-hero-text {
  padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1rem, 4vw, 2.5rem);
  text-align: center;
  background: var(--blog-blue-dark);
  color: var(--blog-white);
}

.blog-page .blog-hero-text .eyebrow {
  color: #f4d58a;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
}

.blog-page .blog-hero-text h1 {
  color: var(--blog-white);
  max-width: 46rem;
  margin-inline: auto;
}

.blog-page .blog-hero-text .lead {
  color: #e2e8f0;
  max-width: 42rem;
  margin-inline: auto;
}

.blog-page .blog-hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  margin-top: 1rem;
}

.blog-page .blog-hero-badges .pill {
  padding: 0.38rem 0.85rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
}

/* Stats */
.blog-page .blog-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.blog-page .blog-stat {
  background: var(--blog-white);
  border: 1px solid var(--blog-border);
  border-radius: 0.75rem;
  padding: 1rem;
  text-align: center;
}

.blog-page .blog-stat .num {
  display: block;
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  font-weight: 800;
  color: var(--blog-blue-dark);
}

.blog-page .blog-stat .label {
  display: block;
  font-size: 0.85rem;
  color: var(--blog-ink-soft);
  margin-top: 0.25rem;
}

/* Sticky sommaire thèmes */
.blog-page .blog-sticky-bar {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(10, 36, 99, 0.97);
  border-bottom: 3px solid transparent;
  border-image: var(--blog-us-gradient) 1;
  box-shadow: 0 4px 20px rgba(10, 36, 99, 0.25);
}

.blog-page .blog-sticky-bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  padding: 0.65rem clamp(0.75rem, 2vw, 1.25rem);
}

.blog-page .blog-sticky-bar__label {
  color: var(--blog-white);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.blog-page .blog-sticky-toggle {
  display: none;
  margin-left: auto;
  padding: 0.4rem 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.1);
  color: var(--blog-white);
  font-weight: 600;
  cursor: pointer;
}

.blog-page .blog-sticky-toggle:focus-visible {
  outline: 2px solid var(--blog-blue);
  outline-offset: 2px;
}

.blog-page .blog-theme-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
}

.blog-page .blog-theme-nav a {
  display: inline-block;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #dbeafe;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.blog-page .blog-theme-nav a:hover,
.blog-page .blog-theme-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.18);
  color: var(--blog-white);
}

.blog-page .blog-theme-nav a[aria-current="true"] {
  background: var(--blog-white);
  color: var(--blog-blue-dark);
  border-color: transparent;
}

/* Filtres */
.blog-page .blog-toolbar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

@media (min-width: 769px) {
  .blog-page .blog-toolbar {
    grid-template-columns: 1fr auto auto;
    align-items: end;
  }
}

.blog-page .blog-search label {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--blog-ink);
  margin-bottom: 0.35rem;
}

.blog-page .blog-search input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--blog-border);
  border-radius: 0.5rem;
  font-size: 1rem;
  color: var(--blog-ink);
  background: var(--blog-white);
}

.blog-page .blog-search input:focus-visible {
  outline: 2px solid var(--blog-blue);
  outline-offset: 2px;
}

.blog-page .blog-year-filter label {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--blog-ink);
  margin-bottom: 0.35rem;
}

.blog-page .blog-year-filter select {
  min-width: 8rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--blog-border);
  border-radius: 0.5rem;
  font-size: 1rem;
  color: var(--blog-ink);
  background: var(--blog-white);
}

.blog-page .blog-filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.blog-page .blog-filter-btn {
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--blog-border);
  background: var(--blog-white);
  color: var(--blog-ink);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.blog-page .blog-filter-btn:hover,
.blog-page .blog-filter-btn:focus-visible {
  border-color: var(--blog-blue);
}

.blog-page .blog-filter-btn[aria-pressed="true"] {
  background: var(--blog-blue-dark);
  color: var(--blog-white);
  border-color: transparent;
}

.blog-page .blog-results-count {
  font-size: 0.9rem;
  color: var(--blog-ink-soft);
  margin-bottom: 1rem;
}

.blog-page .blog-no-results {
  display: none;
  padding: 2rem;
  text-align: center;
  background: var(--blog-white);
  border: 1px dashed var(--blog-border);
  border-radius: 0.75rem;
  color: var(--blog-ink-soft);
}

.blog-page .blog-no-results.is-visible {
  display: block;
}

/* Sections thèmes */
.blog-page .blog-theme-section {
  margin-bottom: 2.5rem;
  scroll-margin-top: 5.5rem;
}

.blog-page .blog-theme-section__head {
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--blog-border);
}

.blog-page .blog-theme-section__head h2 {
  color: var(--blog-blue-dark);
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  margin: 0;
}

/* Grille cards */
.blog-page .blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 481px) {
  .blog-page .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1281px) {
  .blog-page .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.blog-page .blog-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--blog-white);
  border: 1px solid var(--blog-border);
  border-radius: 0.75rem;
  padding: 1.15rem 1.15rem 1rem;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.35s ease, max-height 0.35s ease;
}

.blog-page .blog-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--blog-us-gradient);
}

.blog-page .blog-card.is-hidden {
  display: none;
}

.blog-page .blog-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--blog-shadow);
}

.blog-page .blog-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.blog-page .blog-card__date {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--blog-red);
}

.blog-page .blog-tag {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.blog-page .blog-tag--diplomatie { background: var(--tag-diplomatie-bg); color: var(--tag-diplomatie); }
.blog-page .blog-tag--defense { background: var(--tag-defense-bg); color: var(--tag-defense); }
.blog-page .blog-tag--economie { background: var(--tag-economie-bg); color: var(--tag-economie); }
.blog-page .blog-tag--environnement { background: var(--tag-environnement-bg); color: var(--tag-environnement); }
.blog-page .blog-tag--immigration { background: var(--tag-immigration-bg); color: var(--tag-immigration); }
.blog-page .blog-tag--culture { background: var(--tag-culture-bg); color: var(--tag-culture); }
.blog-page .blog-tag--education { background: var(--tag-education-bg); color: var(--tag-education); }
.blog-page .blog-tag--tourisme { background: var(--tag-tourisme-bg); color: var(--tag-tourisme); }
.blog-page .blog-tag--memoire { background: var(--tag-memoire-bg); color: var(--tag-memoire); }
.blog-page .blog-tag--geopolitique { background: var(--tag-geopolitique-bg); color: var(--tag-geopolitique); }

.blog-page .blog-card h3 {
  font-size: clamp(1rem, 2vw, 1.12rem);
  color: var(--blog-ink);
  margin: 0 0 0.65rem;
  line-height: 1.35;
}

.blog-page .blog-card__excerpt {
  flex: 1;
  font-size: 0.92rem;
  color: var(--blog-ink-soft);
  line-height: 1.6;
  margin: 0 0 0.85rem;
}

.blog-page .blog-card__more {
  display: none;
  font-size: 0.92rem;
  color: var(--blog-ink-soft);
  line-height: 1.6;
  margin-bottom: 0.85rem;
}

.blog-page .blog-card.is-expanded .blog-card__more {
  display: block;
}

.blog-page .blog-card__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: auto;
}

.blog-page .blog-card__read {
  padding: 0;
  border: none;
  background: none;
  color: var(--blog-blue-dark);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-page .blog-card__read:hover,
.blog-page .blog-card__read:focus-visible {
  color: var(--blog-blue);
}

/* Mobile sticky collapse */
@media (max-width: 768px) {
  .blog-page .blog-sticky-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
  }

  .blog-page .blog-theme-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    padding-top: 0.5rem;
  }

  .blog-page .blog-theme-nav.is-open {
    display: flex;
  }

  .blog-page .blog-theme-nav a {
    width: 100%;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .blog-page .blog-card {
    transition: none;
  }
}