/* ============================================================
   Région des lacs — Magazine nature éditorial
   Framework : CSS Grid + Flexbox pur
   Archétype index : B — Magazine à grille asymétrique
   ============================================================ */

/* --- Variables & Reset ------------------------------------ */
:root {
  --c-primary:    #1A6B8A;
  --c-secondary:  #E8F4F8;
  --c-accent:     #2DAA6F;
  --c-text:       #1C2B36;
  --c-text-light: #4A6070;
  --c-text-xlight:#7A96A4;
  --c-white:      #FFFFFF;
  --c-border:     #C8E0EA;
  --c-nav-bg:     #0D4A62;
  --c-footer-bg:  #0A3548;

  --font-title:   'Playfair Display', Georgia, serif;
  --font-body:    'Source Sans 3', 'Helvetica Neue', Arial, sans-serif;

  --radius-sm:    4px;
  --radius-md:    8px;
  --radius-lg:    16px;

  --shadow-card:  0 2px 12px rgba(26,107,138,0.10);
  --shadow-hover: 0 8px 32px rgba(26,107,138,0.18);

  --transition:   0.25s ease;

  --max-w:        1280px;
  --max-w-content:740px;
}

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

html {
  font-size: 16px;
  overflow-x: hidden;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--c-text);
  background: var(--c-white);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--c-accent);
}

ul, ol {
  list-style: none;
}

/* --- Utilitaires ------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
}

.container--narrow {
  max-width: var(--max-w-content);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* --- Barre de catégorie colorée --------------------------- */
.tag-cat {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--c-white);
  background: var(--c-accent);
  padding: 0.22em 0.75em;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.tag-cat:hover {
  background: var(--c-primary);
  color: var(--c-white);
}

.tag-cat--outline {
  background: transparent;
  color: var(--c-accent);
  border: 1.5px solid var(--c-accent);
}

.tag-cat--outline:hover {
  background: var(--c-accent);
  color: var(--c-white);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-nav {
  background: var(--c-nav-bg);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 16px rgba(10,53,72,0.25);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 88px;
  padding-block: 0.75rem;
}

/* Logo */
.site-nav__logo a {
  display: flex;
  align-items: center;
}

.site-nav__logo img {
  height: 72px;
  width: auto;
  display: block;
}

/* Menu hamburger (CSS only) */
.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.nav-toggle-label:hover {
  background: rgba(255,255,255,0.08);
}

.nav-toggle-label span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Liens de navigation */
.site-nav__menu {
  display: flex;
  align-items: center;
  gap: 0;
}

.site-nav__menu ul {
  display: flex;
  align-items: center;
  gap: 0;
}

/* Joornal {{menu}} génère des <li> + <a> */
.site-nav__menu li {
  position: relative;
}

.site-nav__menu a {
  display: block;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.site-nav__menu a:hover,
.site-nav__menu a.active {
  color: var(--c-white);
  background: rgba(255,255,255,0.12);
}

/* Sélecteur de langue */
.nav-lang {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  padding-left: 1rem;
  border-left: 1px solid rgba(255,255,255,0.15);
  margin-left: 0.5rem;
}

/* ============================================================
   INDEX — Archétype B : Magazine à grille asymétrique
   ============================================================ */

/* Label de titre éditorial */
.index-label {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
}

.index-label::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 2px;
  background: var(--c-accent);
}

/* Bannière thumbnail pleine largeur */
.index-banner {
  width: 100%;
  position: relative;
  overflow: hidden;
  background: var(--c-secondary);
  max-height: 540px;
}

.index-banner img,
.index-banner .thumb-img {
  width: 100%;
  height: 540px;
  object-fit: cover;
  display: block;
}

/* Titre h1 en overlay bas-gauche de la bannière */
.index-banner__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2.5rem clamp(1.5rem, 5vw, 4rem) 2rem;
  background: linear-gradient(to top, rgba(10,53,72,0.82) 0%, rgba(10,53,72,0.45) 60%, transparent 100%);
}

.index-h1 {
  font-family: var(--font-title);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 700;
  font-style: italic;
  color: var(--c-white);
  line-height: 1.15;
  text-align: left;
  max-width: 820px;
  text-shadow: 0 2px 12px rgba(10,53,72,0.4);
}

.index-baseline {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  color: rgba(255,255,255,0.82);
  margin-top: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.01em;
}

/* Section À propos — pleine largeur */
.index-about {
  padding: 2.5rem 0;
  background: var(--c-secondary);
  border-top: 1px solid var(--c-border);
  border-bottom: 3px solid var(--c-accent);
}

.index-about-inner {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 2rem 2.5rem;
  box-shadow: var(--shadow-card);
  border-left: 4px solid var(--c-primary);
  font-size: 0.97rem;
  color: var(--c-text-light);
  line-height: 1.7;
}

.index-about-inner h1,
.index-about-inner h2,
.index-about-inner h3 {
  color: var(--c-primary);
  margin-bottom: 0.75rem;
}

.index-about-inner p:last-child { margin-bottom: 0; }

/* Section articles */
.index-articles {
  padding: 3rem 0 4rem;
}

.index-showcase-title {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text-xlight);
  margin-bottom: 1.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.index-showcase-title::after {
  content: '';
  flex: 1;
  height: 2px;
  background: linear-gradient(to right, var(--c-border), transparent);
}

/* Grille showcase : 2 colonnes sur desktop */
.index-showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
}


/* ============================================================
   POST-LOOP — Carte verticale avec label catégorie
   ============================================================ */
.post-card {
  background: var(--c-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--c-border);
}

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

.post-card__thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--c-secondary);
  flex-shrink: 0;
}

.post-card__thumb img,
.post-card__thumb .thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.post-card:hover .post-card__thumb img,
.post-card:hover .post-card__thumb .thumb-img {
  transform: scale(1.04);
}

.post-card__body {
  padding: 1.25rem 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.post-card__date {
  font-size: 0.78rem;
  color: var(--c-text-xlight);
  font-weight: 600;
}

.post-card__title {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.35;
  transition: color var(--transition);
}

.post-card__title:hover {
  color: var(--c-primary);
}

.post-card__excerpt {
  font-size: 0.9rem;
  color: var(--c-text-light);
  line-height: 1.65;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__more {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.25rem;
  transition: gap var(--transition), color var(--transition);
}

.post-card__more::after {
  content: '→';
  transition: transform var(--transition);
}

.post-card:hover .post-card__more {
  gap: 0.6rem;
  color: var(--c-accent);
}

/* ============================================================
   POST-LIST — Page listing
   ============================================================ */
.post-list-header {
  background: var(--c-nav-bg);
  padding: 3.5rem 0 2.5rem;
  border-bottom: 4px solid var(--c-accent);
}

.post-list-header__inner {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.post-list-header__label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.post-list-header h1,
.post-list-header__title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.2;
  text-align: left;
}

.post-list-body {
  padding-block: 3rem 4rem;
}

/* Grille listing : 3 colonnes sur desktop */
.post-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.pagination .page {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding-inline: 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-primary);
  border: 1.5px solid var(--c-border);
  background: var(--c-white);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.pagination .page:hover {
  background: var(--c-primary);
  color: var(--c-white);
  border-color: var(--c-primary);
}

.pagination .active {
  background: var(--c-primary);
  color: var(--c-white);
  border-color: var(--c-primary);
}

/* ============================================================
   POST — Page article
   ============================================================ */

/* Breadcrumb */
.breadcrumb-bar {
  background: var(--c-secondary);
  border-bottom: 1px solid var(--c-border);
  padding: 0.6rem 0;
}

.breadcrumb-inner {
  font-size: 0.82rem;
  color: var(--c-text-xlight);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.breadcrumb-inner a {
  color: var(--c-text-light);
  transition: color var(--transition);
}

.breadcrumb-inner a:hover {
  color: var(--c-primary);
}

.breadcrumb-sep {
  color: var(--c-border);
  font-size: 0.75rem;
}

/* En-tête article */
.post-header {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--c-border);
}

.post-header__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.1rem;
}

.post-header__date {
  font-size: 0.82rem;
  color: var(--c-text-xlight);
  font-weight: 600;
}

.post-header__reading {
  font-size: 0.82rem;
  color: var(--c-text-xlight);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.post-header__reading::before {
  content: '·';
}

.post-title {
  font-family: var(--font-title);
  font-size: clamp(1.9rem, 4.5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.18;
  color: var(--c-text);
  text-align: left;
  margin-bottom: 1rem;
}

/* Image principale article */
.post-thumbnail {
  margin-bottom: 2.5rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--c-secondary);
}

.post-thumbnail img,
.post-thumbnail .thumb-img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  display: block;
}

/* Contenu article */
.post-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 3.5rem;
  align-items: start;
  padding-block: 2.5rem 4rem;
}

.post-content {
  min-width: 0;
}

/* Styles typographiques du contenu */
.post-content h2 {
  font-family: var(--font-title);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--c-primary);
  margin: 2.2rem 0 0.9rem;
  line-height: 1.25;
}

.post-content h3 {
  font-family: var(--font-title);
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--c-text);
  margin: 1.8rem 0 0.75rem;
}

.post-content h4 {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-text);
  margin: 1.4rem 0 0.6rem;
}

.post-content p {
  margin-bottom: 1.35rem;
  font-size: 1.06rem;
  line-height: 1.82;
  color: var(--c-text);
}

.post-content ul,
.post-content ol {
  list-style: disc;
  padding-left: 1.8rem;
  margin-bottom: 1.35rem;
}

.post-content ol {
  list-style: decimal;
}

.post-content li {
  font-size: 1.02rem;
  line-height: 1.7;
  margin-bottom: 0.4rem;
}

.post-content blockquote {
  border-left: 4px solid var(--c-accent);
  padding: 1rem 1.5rem;
  background: var(--c-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.75rem 0;
  font-family: var(--font-title);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--c-primary);
  line-height: 1.6;
}

.post-content a {
  color: var(--c-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-content img {
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
}

.post-content figure {
  margin: 2rem 0;
}

.post-content figcaption {
  font-size: 0.84rem;
  color: var(--c-text-xlight);
  text-align: center;
  margin-top: 0.5rem;
  font-style: italic;
}

.post-content hr {
  border: none;
  border-top: 1px solid var(--c-border);
  margin: 2rem 0;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.post-content th,
.post-content td {
  border: 1px solid var(--c-border);
  padding: 0.65rem 0.9rem;
  text-align: left;
}

.post-content th {
  background: var(--c-secondary);
  font-weight: 700;
  color: var(--c-primary);
}

/* Sidebar article */
.post-sidebar {
  position: sticky;
  top: 104px;
}

.post-sidebar__widget {
  background: var(--c-secondary);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--c-border);
}

.post-sidebar__widget-title {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--c-text-xlight);
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--c-border);
}

/* Sommaire */
.toc-wrapper {
  font-size: 0.9rem;
  line-height: 1.6;
}

.toc-wrapper a {
  color: var(--c-text-light);
}

.toc-wrapper a:hover {
  color: var(--c-primary);
}

/* Auteur / Signataire */
.signatory-block {
  margin-top: 2.5rem;
  padding: 1.75rem;
  background: var(--c-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--c-border);
}

.signatory-title {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--c-text-xlight);
  margin-bottom: 0.85rem;
}

/* Articles liés */
.related-section {
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--c-border);
}

.section-title {
  font-family: var(--font-title);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1.4em;
  background: var(--c-accent);
  border-radius: 2px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--c-footer-bg);
  color: rgba(255,255,255,0.65);
  padding: 2.5rem 0;
  margin-top: auto;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer__copy {
  font-size: 0.85rem;
  line-height: 1.6;
}

.site-footer__copy a {
  color: rgba(255,255,255,0.75);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.site-footer__copy a:hover {
  color: var(--c-white);
}

.site-footer__info {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.38);
  text-align: right;
}

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

/* lg → md (≤ 1080px) */
@media (max-width: 1080px) {

  .post-layout {
    grid-template-columns: 1fr 240px;
    gap: 2.5rem;
  }
}

/* md (≤ 900px) */
@media (max-width: 900px) {

  .post-layout {
    grid-template-columns: 1fr;
  }

  .post-sidebar {
    position: static;
  }

  .related-grid {
    grid-template-columns: 1fr 1fr;
  }

  .post-list-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* sm (≤ 720px) */
@media (max-width: 720px) {
  /* Nav mobile */
  .nav-toggle-label {
    display: flex;
  }

  .site-nav__menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--c-nav-bg);
    box-shadow: 0 8px 24px rgba(10,53,72,0.3);
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.35s ease;
  }

  .site-nav__menu ul {
    flex-direction: column;
    align-items: stretch;
    padding: 0.5rem 0 1rem;
    gap: 0;
  }

  .site-nav__menu a {
    padding: 0.85rem 1.5rem;
    border-radius: 0;
    font-size: 1rem;
  }

  .nav-toggle:checked ~ .site-nav__menu {
    max-height: 500px;
  }

  .nav-toggle:checked + .nav-toggle-label span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle:checked + .nav-toggle-label span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle:checked + .nav-toggle-label span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-nav__logo img {
    height: 56px;
  }

  .site-nav__inner {
    min-height: 72px;
    flex-wrap: wrap;
    position: relative;
  }

  /* Index banner */
  .index-banner img,
  .index-banner .thumb-img {
    height: 340px;
  }

  .index-showcase-grid {
    grid-template-columns: 1fr;
  }

  /* Lists */
  .post-list-grid {
    grid-template-columns: 1fr;
  }

  /* Related */
  .related-grid {
    grid-template-columns: 1fr;
  }

  /* Post title */
  .post-title {
    font-size: clamp(1.6rem, 6vw, 2.2rem);
  }
}

/* xs (≤ 480px) */
@media (max-width: 480px) {
  .site-nav__logo img {
    height: 48px;
  }

  .index-banner img,
  .index-banner .thumb-img {
    height: 260px;
  }

  .index-banner__overlay {
    padding: 1.5rem 1rem 1.25rem;
  }

  .index-h1 {
    font-size: clamp(1.6rem, 7vw, 2.4rem);
  }

  .post-list-header {
    padding: 2.5rem 0 2rem;
  }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .site-nav,
  .post-sidebar,
  .related-section {
    display: none;
  }

  .post-layout {
    grid-template-columns: 1fr;
  }

  body {
    color: #000;
    font-size: 12pt;
  }
}