/* ============================================================
   ARDA — Thème Magazine Éditorial
   CSS Grid + Flexbox pur
   ============================================================ */

/* --- Variables -------------------------------------------- */
:root {
  --color-primary:   #1a1a2e;
  --color-secondary: #f5f4f0;
  --color-accent:    #c0392b;
  --color-text:      #2c2c2c;
  --color-muted:     #6b6b6b;
  --color-border:    #dddbd5;
  --color-white:     #ffffff;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Source Serif 4', Georgia, serif;

  --max-w:        1200px;
  --max-w-narrow: 740px;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  3.5rem;
  --space-xl:  5rem;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-secondary);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* --- Layout helpers --------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.container--narrow {
  width: 100%;
  max-width: var(--max-w-narrow);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-nav {
  background: var(--color-primary);
  border-bottom: 3px solid var(--color-accent);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

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

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

.site-nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Menu items injected by {{menu}} */
.nav-menu {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.nav-menu a {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-secondary);
  transition: color 0.2s;
}

.nav-menu a:hover { color: var(--color-accent); }

/* Hamburger (CSS-only via checkbox) */
.nav-toggle { display: none; }
.nav-toggle-label {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle-label span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--color-secondary);
  transition: transform 0.3s, opacity 0.3s;
}

/* ============================================================
   BANDEAU TITRE PAGE (post-list / post)
   ============================================================ */
.page-banner {
  background: var(--color-primary);
  padding-block: var(--space-lg);
  border-bottom: 3px solid var(--color-accent);
}

.page-banner__label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.page-banner__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 700;
  font-style: italic;
  color: var(--color-secondary);
  line-height: 1.15;
  max-width: 700px;
}

.page-banner__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-sm);
  flex-wrap: wrap;
}

.page-banner__date,
.page-banner__reading {
  font-size: 0.82rem;
  color: #a0a0b8;
  letter-spacing: 0.06em;
}

.page-banner__cat a {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-white);
  background: var(--color-accent);
  padding: 3px 10px;
  border-radius: 2px;
  transition: background 0.2s;
}
.page-banner__cat a:hover { background: #a93226; }

/* ============================================================
   INDEX — HERO BANDEAU (Archétype B)
   ============================================================ */
.index-header {
  background: var(--color-primary);
  padding-block: var(--space-md) var(--space-xs);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.index-header__label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.4rem;
}

.index-header__h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  font-weight: 700;
  font-style: italic;
  color: var(--color-secondary);
  line-height: 1.1;
  max-width: 780px;
}

.index-header__baseline {
  font-family: var(--font-body);
  font-size: 1rem;
  color: #9999b3;
  margin-top: var(--space-xs);
}

/* Thumbnail — bannière pleine largeur sous le header */
.index-thumbnail {
  width: 100%;
  max-height: 480px;
  overflow: hidden;
}

.index-thumbnail img,
.index-thumbnail a img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

/* Content section pleine largeur */
.index-content {
  padding-block: var(--space-lg);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.index-content__inner {
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--color-text);
}

.index-content__inner p { margin-bottom: 1.2rem; }

/* ============================================================
   SHOWCASE SECTION
   ============================================================ */
.section-showcase {
  padding-block: var(--space-lg);
}

.section-showcase__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: var(--space-xs);
}

.section-showcase__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
}

.section-showcase__rule {
  flex: 1;
  height: 1px;
  background: var(--color-border);
  margin-bottom: 4px;
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

/* ============================================================
   POST LOOP — CARTE VERTICALE ÉDITORIALE
   ============================================================ */
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  transition: box-shadow 0.25s, transform 0.25s;
}

.post-card:hover {
  box-shadow: 0 8px 28px rgba(26,26,46,0.12);
  transform: translateY(-3px);
}

.post-card__thumb {
  overflow: hidden;
  aspect-ratio: 16/9;
}

.post-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.post-card:hover .post-card__thumb img { transform: scale(1.04); }

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

.post-card__cat a {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-block;
  margin-bottom: 0.5rem;
}

.post-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
}

.post-card__title a:hover { color: var(--color-accent); }

.post-card__date {
  font-size: 0.76rem;
  color: var(--color-muted);
  letter-spacing: 0.06em;
  margin-bottom: 0.7rem;
}

.post-card__excerpt {
  font-size: 0.92rem;
  line-height: 1.65;
  color: #555;
  flex: 1;
  margin-bottom: 1rem;
}

.post-card__more {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  align-self: flex-start;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.post-card__more:hover { border-bottom-color: var(--color-accent); }

/* ============================================================
   POST-LIST
   ============================================================ */
.post-list {
  padding-block: var(--space-lg);
}

.post-list__breadcrumb {
  margin-bottom: var(--space-md);
  font-size: 0.82rem;
  color: var(--color-muted);
}

.post-list__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.post-list__pagination {
  margin-top: var(--space-lg);
  display: flex;
  justify-content: center;
}

/* Pagination */
.pagination {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  justify-content: center;
}

.pagination a,
.pagination span {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  transition: background 0.2s, color 0.2s;
}

.pagination a:hover,
.pagination span.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* ============================================================
   POST DETAIL
   ============================================================ */
.post-detail {
  padding-block: var(--space-lg);
}

.post-detail__breadcrumb {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
}

.post-detail__breadcrumb a { color: var(--color-accent); }
.post-detail__breadcrumb a:hover { text-decoration: underline; }

.post-detail__thumb {
  margin-bottom: var(--space-md);
}

.post-detail__thumb img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
}

.post-detail__content {
  font-size: 1.1rem;
  line-height: 1.9;
  color: var(--color-text);
}

.post-detail__content h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 2.5rem 0 1rem;
  line-height: 1.25;
}

.post-detail__content h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 2rem 0 0.8rem;
}

.post-detail__content p { margin-bottom: 1.4rem; }

.post-detail__content ul,
.post-detail__content ol {
  list-style: initial;
  padding-left: 1.6rem;
  margin-bottom: 1.4rem;
}

.post-detail__content blockquote {
  border-left: 4px solid var(--color-accent);
  padding-left: 1.4rem;
  font-style: italic;
  color: var(--color-muted);
  margin: 2rem 0;
}

.post-detail__content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-detail__content img {
  border-radius: 2px;
  margin-block: 2rem;
}

/* Signatory */
.post-signatory {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.post-signatory__info {
  font-size: 0.9rem;
  line-height: 1.5;
}

.post-signatory__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

/* Related */
.post-related {
  padding-block: var(--space-lg);
  border-top: 2px solid var(--color-primary);
  margin-top: var(--space-lg);
}

.post-related__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.post-related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

/* TOC */
.post-toc {
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: 0.9rem;
}

.post-toc__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-primary);
  border-top: 3px solid var(--color-accent);
  padding-block: var(--space-lg);
  color: #9999b3;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.site-footer__brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--color-secondary);
}

.site-footer__brand span {
  color: var(--color-accent);
}

.site-footer__copy {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.site-footer__legal a {
  color: #9999b3;
  font-size: 0.78rem;
  margin-left: var(--space-sm);
  transition: color 0.2s;
}
.site-footer__legal a:hover { color: var(--color-secondary); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 992px) {
  .showcase-grid,
  .post-list__grid,
  .post-related__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  body { font-size: 17px; }

  .showcase-grid,
  .post-list__grid,
  .post-related__grid {
    grid-template-columns: 1fr;
  }

  .site-nav__menu { display: none; position: absolute; }

  /* CSS-only nav */
  .nav-toggle-label { display: flex; }

  .nav-toggle:checked ~ .site-nav__menu {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-primary);
    padding: var(--space-sm) var(--space-md);
    gap: var(--space-sm);
    border-top: 1px solid rgba(255,255,255,0.1);
  }

  .site-nav__inner { position: relative; flex-wrap: wrap; }

  .site-nav__logo img { height: 52px; }

  .index-thumbnail { max-height: 260px; }
  .index-thumbnail img { max-height: 260px; }

  .post-signatory { flex-direction: column; }
}

@media (max-width: 480px) {
  .index-header__h1 { font-size: 2rem; }
  .page-banner__title { font-size: 1.9rem; }
}