/* ============================================================
   delta-sierra.com — David Salvan
   Style institutionnel sobre
   ============================================================ */

:root {
  --color-bleu: #0c2340;
  --color-bleu-clair: #1a3a5c;
  --color-bleu-light: #b8c4d6;
  --color-rouge: #c8102e;
  --color-rouge-fonce: #a00d24;
  --color-ivoire: #f4f1ea;
  --color-ivoire-fonce: #e8e3d4;
  --color-texte: #1f1f1f;
  --color-texte-secondaire: #5a5a5a;
  --color-blanc: #ffffff;
  --color-bord: #d9d4c5;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-width: 1240px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-card-hover: 0 4px 16px rgba(12,35,64,0.15);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-texte);
  background: var(--color-blanc);
}

a {
  color: var(--color-bleu);
  text-decoration: none;
}

a:hover {
  color: var(--color-rouge);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============================================================
   HEADER (bandeau supérieur)
   ============================================================ */

.site-header {
  background: var(--color-bleu);
  color: var(--color-blanc);
  padding: 1.25rem 0;
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.site-header__brand p {
  margin: 0;
}

.site-header__eyebrow {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--color-bleu-light);
  text-transform: uppercase;
  margin-bottom: 4px !important;
}

.site-header__title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--color-blanc);
}

.btn-soutien {
  background: var(--color-rouge);
  color: var(--color-blanc) !important;
  padding: 11px 22px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border: 0;
  transition: background 0.2s;
  white-space: nowrap;
}

.btn-soutien:hover {
  background: var(--color-rouge-fonce);
  color: var(--color-blanc) !important;
}

/* ============================================================
   NAVIGATION (catégories)
   ============================================================ */

.site-nav {
  background: var(--color-blanc);
  border-bottom: 1px solid var(--color-bord);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  align-items: center;
}

.site-nav button.cat-btn {
  background: none;
  border: 0;
  padding: 16px 0;
  font-size: 14px;
  color: var(--color-texte-secondaire);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  font-family: inherit;
  font-weight: 400;
  transition: all 0.2s;
}

.site-nav button.cat-btn.active,
.site-nav button.cat-btn:hover {
  color: var(--color-bleu);
  border-bottom-color: var(--color-rouge);
  font-weight: 500;
}

.site-nav__about {
  font-size: 14px;
  color: var(--color-texte-secondaire);
  text-decoration: none;
}

.site-nav__about:hover {
  color: var(--color-bleu);
}

.site-nav__books {
  margin-left: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-blanc);
  background: var(--color-bleu);
  padding: 8px 18px;
  border-radius: 4px;
  text-decoration: none;
  border: 1px solid var(--color-bleu);
  transition: all 0.2s;
  letter-spacing: 0.3px;
}

.site-nav__books:hover {
  background: var(--color-blanc);
  color: var(--color-bleu);
}

/* ============================================================
   HERO (bannière + bio)
   ============================================================ */

.hero {
  background: var(--color-blanc);
  border-bottom: 1px solid var(--color-bord);
}

.hero__banner {
  width: 100%;
  height: 280px;
  background-image: url('../img/banniere.png');
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center center;
  background-color: var(--color-bleu);
}

/* La photo ronde fait doublon avec le portrait dans la bannière, on la cache */
.hero__photo {
  display: none;
}

@media (min-width: 1100px) {
  .hero__banner {
    height: 340px;
  }
}

.hero__bio {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.75rem 1.5rem 2rem;
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.hero__photo {
  flex: 0 0 auto;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-blanc);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  margin-top: -85px;
}

.hero__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__text {
  flex: 1;
  min-width: 280px;
}

.hero__text h1 {
  font-size: 26px;
  font-weight: 500;
  margin: 0 0 0.5rem;
  color: var(--color-bleu);
  letter-spacing: -0.3px;
}

.hero__quote {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-texte-secondaire);
  font-size: 16px;
  line-height: 1.7;
  margin: 0 0 1rem;
  padding-left: 1rem;
  border-left: 3px solid var(--color-rouge);
}

.hero__bio-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-texte);
  margin: 0;
}

/* ============================================================
   BARRE DE RECHERCHE
   ============================================================ */

.search-bar {
  background: var(--color-ivoire);
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-bord);
}

.search-bar__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.search-bar input[type="text"] {
  flex: 1;
  min-width: 240px;
  padding: 11px 14px;
  border: 1px solid var(--color-bord);
  border-radius: 4px;
  font-size: 14px;
  background: var(--color-blanc);
  font-family: inherit;
}

.search-bar input[type="text"]:focus {
  outline: none;
  border-color: var(--color-bleu);
  box-shadow: 0 0 0 3px rgba(12,35,64,0.1);
}

/* ============================================================
   GRILLE DES ARTICLES
   ============================================================ */

.articles-section {
  padding: 2rem 0 3rem;
  background: var(--color-blanc);
}

.articles-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 22px;
}

.article-card {
  background: var(--color-blanc);
  border: 1px solid var(--color-bord);
  border-radius: 4px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  color: inherit;
}

.article-card__cover {
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--color-bleu);
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.4s;
}

.article-card:hover .article-card__cover img {
  transform: scale(1.04);
}

.article-card__meta {
  padding: 12px 14px;
  border-top: 2px solid var(--color-rouge);
  background: var(--color-blanc);
}

.article-card__category {
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--color-rouge);
  text-transform: uppercase;
  font-weight: 500;
  margin: 0 0 6px;
}

.article-card__title {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-bleu);
  margin: 0 0 6px;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card__date {
  font-size: 11px;
  color: var(--color-texte-secondaire);
  margin: 0;
}

.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-texte-secondaire);
  font-style: italic;
}

/* ============================================================
   BLOC SOUTIEN (PayPal)
   ============================================================ */

.support-block {
  max-width: var(--max-width);
  margin: 2rem auto;
  padding: 1.5rem 1.5rem;
}

.support-block__inner {
  background: var(--color-ivoire);
  border-left: 4px solid var(--color-rouge);
  padding: 1.75rem 2rem;
  border-radius: 0 4px 4px 0;
}

.support-block h2 {
  margin: 0 0 0.5rem;
  font-size: 20px;
  color: var(--color-bleu);
  font-weight: 600;
}

.support-block p {
  margin: 0 0 1rem;
  font-size: 14px;
  color: var(--color-texte-secondaire);
  line-height: 1.7;
  max-width: 720px;
}

.support-block .btn-soutien {
  display: inline-block;
  margin-top: 0.5rem;
}

.support-block__costs {
  margin-top: 1rem;
  font-size: 12px;
  color: var(--color-texte-secondaire);
  font-style: italic;
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  background: var(--color-bleu);
  color: var(--color-bleu-light);
  padding: 1.5rem 0;
  font-size: 13px;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.site-footer a {
  color: var(--color-bleu-light);
  text-decoration: underline;
}

.site-footer a:hover {
  color: var(--color-blanc);
}

/* ============================================================
   PAGES D'ARTICLES
   ============================================================ */

.article-header {
  background: var(--color-bleu);
  color: var(--color-blanc);
  padding: 2.5rem 0 2rem;
}

.article-header__inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.btn-retour {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.1);
  color: var(--color-blanc) !important;
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 13px;
  text-decoration: none;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255,255,255,0.2);
  transition: background 0.2s;
}

.btn-retour:hover {
  background: rgba(255,255,255,0.2);
  color: var(--color-blanc) !important;
}

.article-header__category {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--color-bleu-light);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.article-header h1 {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 0.5rem;
  letter-spacing: -0.5px;
}

.article-header__subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--color-bleu-light);
  margin: 0 0 1rem;
  line-height: 1.5;
}

.article-header__meta {
  font-size: 13px;
  color: var(--color-bleu-light);
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

.article-header__meta a {
  color: var(--color-blanc) !important;
  text-decoration: none;
  background: var(--color-rouge);
  padding: 6px 12px;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 500;
}

.article-header__meta a:hover {
  background: var(--color-rouge-fonce);
}

.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-texte);
  text-align: justify;
  hyphens: auto;
  -webkit-hyphens: auto;
}

.article-body p {
  margin: 0 0 1.5rem;
  text-indent: 0;
}

.article-body p:first-of-type::first-letter {
  font-size: 2.6em;
  font-weight: 600;
  float: left;
  line-height: 1;
  margin: 4px 8px 0 0;
  color: var(--color-bleu);
  font-family: var(--font-serif);
}

.article-body h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-bleu);
  margin: 2.5rem 0 1rem;
  line-height: 1.3;
  letter-spacing: -0.2px;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-ivoire-fonce);
}

.article-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-bleu);
  margin: 2rem 0 0.75rem;
  line-height: 1.3;
}

.article-body ul {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}

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

.article-body strong {
  color: var(--color-bleu);
}

.article-body blockquote {
  border-left: 3px solid var(--color-rouge);
  padding: 0.5rem 1rem;
  margin: 1.5rem 0;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-texte-secondaire);
}

/* Boutons partage */
.share-buttons {
  max-width: 720px;
  margin: 2rem auto;
  padding: 1.25rem 1.5rem;
  background: var(--color-ivoire);
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.share-buttons span {
  font-size: 14px;
  color: var(--color-texte-secondaire);
  font-weight: 500;
}

.share-buttons a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--color-blanc);
  border: 1px solid var(--color-bord);
  border-radius: 4px;
  font-size: 13px;
  color: var(--color-texte);
  text-decoration: none;
  transition: all 0.2s;
}

.share-buttons a:hover {
  border-color: var(--color-bleu);
  background: var(--color-bleu);
  color: var(--color-blanc);
}

/* Bloc fin d'article : soutien */
.article-end-cta {
  max-width: 720px;
  margin: 2rem auto 3rem;
  padding: 1.5rem;
  background: var(--color-ivoire);
  border-left: 4px solid var(--color-rouge);
  border-radius: 0 4px 4px 0;
}

.article-end-cta h3 {
  margin: 0 0 0.5rem;
  font-size: 17px;
  color: var(--color-bleu);
}

.article-end-cta p {
  font-size: 14px;
  margin: 0 0 1rem;
  color: var(--color-texte-secondaire);
}

/* ============================================================
   PAGE À PROPOS
   ============================================================ */

.about-section {
  max-width: 820px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}

.about-section h2 {
  font-size: 22px;
  color: var(--color-bleu);
  margin: 2rem 0 0.75rem;
  font-weight: 600;
}

.about-section p {
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 1rem;
}

.about-photo {
  float: right;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 0 1.5rem 1.5rem;
  border: 4px solid var(--color-ivoire);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-channels {
  background: var(--color-ivoire);
  padding: 1.5rem;
  border-radius: 4px;
  margin: 1.5rem 0;
}

.about-channels h3 {
  margin: 0 0 0.75rem;
  font-size: 16px;
  color: var(--color-bleu);
}

.about-channels ul {
  margin: 0;
  padding-left: 1.25rem;
}

/* ============================================================
   BOUTONS FLOTTANTS (sur les pages d'articles)
   ============================================================ */

.floating-actions {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  display: flex !important;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
  pointer-events: auto;
}

.floating-btn {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-bleu);
  color: var(--color-blanc) !important;
  text-decoration: none !important;
  padding: 12px 18px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 3px 12px rgba(12,35,64,0.35);
  border: 0;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
  min-width: 56px;
  white-space: nowrap;
}

.floating-btn:hover {
  background: var(--color-bleu-clair);
  color: var(--color-blanc) !important;
  transform: scale(1.05);
}

.floating-btn--don {
  background: var(--color-rouge);
}

.floating-btn--don:hover {
  background: var(--color-rouge-fonce);
}

.floating-btn__icon {
  font-size: 16px;
  line-height: 1;
}

/* ============================================================
   BOUTON TRADUCTION
   ============================================================ */

.translate-widget {
  position: relative;
  display: inline-block;
}

.translate-toggle {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--color-blanc);
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.2s;
}

.translate-toggle:hover {
  background: rgba(255,255,255,0.2);
}

.translate-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 6px;
  background: var(--color-blanc);
  border: 1px solid var(--color-bord);
  border-radius: 4px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.18);
  min-width: 180px;
  z-index: 300;
  overflow: hidden;
}

.translate-menu.is-open {
  display: block;
}

.translate-menu a {
  display: block;
  padding: 10px 14px;
  color: var(--color-texte);
  font-size: 13px;
  border-bottom: 1px solid var(--color-bord);
  text-decoration: none;
}

.translate-menu a:last-child {
  border-bottom: 0;
}

.translate-menu a:hover {
  background: var(--color-ivoire);
  color: var(--color-bleu);
}

/* ============================================================
   CARTE CHAÎNES YOUTUBE (style article spécial)
   ============================================================ */

.youtube-card {
  background: linear-gradient(135deg, #c8102e 0%, #8a0b1f 100%);
  position: relative;
}

.youtube-card .article-card__cover {
  background: transparent;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-blanc);
}

.youtube-card .article-card__cover-icon {
  font-size: 42px;
  margin-bottom: 8px;
}

.youtube-card .article-card__cover-title {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--color-blanc);
  line-height: 1.3;
}

.youtube-card .article-card__cover-subtitle {
  font-size: 12px;
  color: rgba(255,255,255,0.85);
  margin: 0;
  line-height: 1.4;
}

.youtube-card .article-card__meta {
  border-top: 2px solid rgba(255,255,255,0.3);
  background: rgba(0,0,0,0.15);
}

.youtube-card .article-card__category {
  color: var(--color-blanc);
}

.youtube-card .article-card__date {
  color: rgba(255,255,255,0.85);
}

/* ============================================================
   LECTEUR PDF INTÉGRÉ
   ============================================================ */

.pdf-viewer-section {
  max-width: 1100px;
  margin: 0 auto 2rem;
  padding: 0 1.5rem;
  width: 100%;
  display: block;
}

.pdf-viewer-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 0;
  border-bottom: 2px solid var(--color-bord);
}

.pdf-tab {
  background: var(--color-ivoire);
  border: 1px solid var(--color-bord);
  border-bottom: 0;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-texte-secondaire);
  cursor: pointer;
  border-radius: 6px 6px 0 0;
  font-family: inherit;
  transition: all 0.2s;
  margin-bottom: -2px;
  position: relative;
}

.pdf-tab:hover {
  background: var(--color-blanc);
  color: var(--color-bleu);
}

.pdf-tab.active {
  background: var(--color-bleu);
  color: var(--color-blanc);
  border-color: var(--color-bleu);
  border-bottom-color: var(--color-bleu);
}

.pdf-viewer-frame {
  width: 100% !important;
  display: block;
  background: var(--color-bleu);
  border: 2px solid var(--color-bleu);
  border-top: 0;
  height: 900px;
  min-height: 800px;
  overflow: hidden;
  position: relative;
  box-sizing: border-box;
}

.pdf-viewer-frame iframe {
  width: 100% !important;
  height: 100% !important;
  min-height: 800px !important;
  display: block !important;
  border: 0 !important;
  background: var(--color-blanc);
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.pdf-viewer-note {
  margin-top: 1rem;
  padding: 12px 16px;
  background: var(--color-ivoire);
  border-radius: 4px;
  font-size: 13px;
  color: var(--color-texte-secondaire);
  line-height: 1.7;
}

.pdf-viewer-note a {
  color: var(--color-bleu);
  font-weight: 500;
}

@media (max-width: 768px) {
  .pdf-viewer-frame {
    height: 600px;
    min-height: 500px;
  }
  .pdf-viewer-frame iframe {
    min-height: 500px;
  }
  .pdf-tab {
    font-size: 12px;
    padding: 8px 12px;
  }
}

/* ============================================================
   BADGE "EN COURS DE RÉALISATION"
   ============================================================ */

.badge-progress {
  display: inline-flex;
  align-items: center;
  background: var(--color-rouge);
  color: var(--color-blanc) !important;
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Badge sur la carte article en accueil (signal "en cours") */
.article-card__progress-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--color-rouge);
  color: var(--color-blanc);
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  z-index: 2;
}

.article-card__progress-badge--soon {
  background: var(--color-bleu);
}

.article-card {
  position: relative;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-header__title {
    font-size: 18px;
  }

  /* Sur mobile, boutons flottants plus petits, en bas à droite, juste icônes */
  .floating-actions {
    right: 12px;
    top: auto;
    bottom: 12px;
    transform: none;
  }

  .floating-btn {
    padding: 10px;
    min-width: 44px;
    font-size: 0;
  }

  .floating-btn__icon {
    font-size: 18px;
  }

  .hero__banner {
    height: 180px;
  }

  .hero__bio {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem 1rem;
  }

  .hero__photo {
    margin-top: -65px;
    width: 110px;
    height: 110px;
  }

  .hero__text {
    text-align: left;
  }

  .hero__quote {
    font-size: 14px;
  }

  .articles-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 14px;
    padding: 0 1rem;
  }

  .article-header h1 {
    font-size: 24px;
  }

  .article-header__subtitle {
    font-size: 16px;
  }

  .article-body {
    font-size: 16px;
    padding: 2rem 1.25rem;
  }

  .article-body h2 {
    font-size: 19px;
  }

  .about-photo {
    float: none;
    margin: 0 auto 1.5rem;
  }

  .site-nav__inner {
    gap: 16px;
    overflow-x: auto;
  }

  .site-nav button.cat-btn {
    white-space: nowrap;
    font-size: 13px;
  }

  .search-bar__inner {
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================================
   FALLBACK MOBILE PDF (cards d'aperçu pour mobile uniquement)
   ============================================================ */

.pdf-mobile-cards {
  display: none; /* masqué par défaut sur desktop */
}

@media (max-width: 768px) {
  /* Sur mobile : on masque l'iframe et les onglets, on affiche les cards */
  .pdf-viewer-tabs {
    display: none !important;
  }
  .pdf-viewer-frame {
    display: none !important;
  }
  .pdf-mobile-cards {
    display: block;
    margin-top: 1rem;
  }
}

.pdf-mobile-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  margin-bottom: 12px;
  background: var(--color-blanc);
  border: 1px solid var(--color-bord);
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  text-decoration: none !important;
  color: inherit;
  transition: all 0.2s;
}

.pdf-mobile-card:hover,
.pdf-mobile-card:active {
  border-color: var(--color-bleu);
  box-shadow: 0 3px 8px rgba(12, 35, 64, 0.12);
  transform: translateY(-1px);
}

.pdf-mobile-card__cover {
  flex: 0 0 80px;
  width: 80px;
  height: 110px;
  background: var(--color-ivoire);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--color-bord);
}

.pdf-mobile-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pdf-mobile-card__body {
  flex: 1;
  min-width: 0;
}

.pdf-mobile-card__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 16px;
  color: var(--color-bleu);
  margin: 0 0 4px 0;
  line-height: 1.3;
}

.pdf-mobile-card__meta {
  font-size: 12px;
  color: var(--color-texte-secondaire);
  margin: 0 0 10px 0;
}

.pdf-mobile-card__btn {
  display: inline-block;
  padding: 8px 16px;
  background: var(--color-bleu);
  color: var(--color-blanc) !important;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none !important;
}

.pdf-mobile-intro {
  display: none;
}

@media (max-width: 768px) {
  .pdf-mobile-intro {
    display: block;
    font-size: 13px;
    color: var(--color-texte-secondaire);
    background: var(--color-ivoire);
    padding: 12px 14px;
    border-radius: 4px;
    margin-bottom: 1rem;
    line-height: 1.5;
  }
}