/* ============================================================
   UPSIDE BOURSE — Thème Joornal
   Style : Swiss Design / Magazine Financier Premium
   Framework : CSS Grid + Flexbox pur
   ============================================================ */

/* ── Google Fonts déplacées dans header.html ── */

:root {
  --color-primary:   #1A3A5C;
  --color-secondary: #2E86AB;
  --color-accent:    #27AE60;
  --color-text:      #1C1C2E;
  --color-text-muted:#5A6A7E;
  --color-bg:        #F7F9FC;
  --color-surface:   #FFFFFF;
  --color-border:    #DDE4EE;
  --color-nav-bg:    #0F2540;

  --font-title: 'Sora', sans-serif;
  --font-body:  'Inter', sans-serif;

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

  --shadow-card: 0 2px 12px rgba(26,58,92,.08);
  --shadow-hover: 0 8px 32px rgba(26,58,92,.15);

  --max-w: 1320px;
  --gutter: clamp(16px, 4vw, 48px);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── CONTAINER ── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow {
  max-width: 860px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ════════════════════════════════
   NAV
════════════════════════════════ */
.site-nav {
  background: var(--color-nav-bg);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 3px solid var(--color-accent);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 88px;
  padding-block: 12px;
}
.nav-logo a {
  display: flex;
  align-items: center;
}
.nav-logo img {
  height: 72px;
  width: auto;
  object-fit: contain;
}

/* Menu principal */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-menu a {
  display: block;
  padding: 8px 16px;
  color: rgba(255,255,255,.85);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .03em;
  border-radius: var(--radius-sm);
  transition: color .2s, background .2s;
}
.nav-menu a:hover,
.nav-menu a.active {
  color: #fff;
  background: rgba(255,255,255,.1);
}
.nav-menu a.active {
  border-bottom: 2px solid var(--color-accent);
}

/* Bouton hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}

/* ════════════════════════════════
   INDEX — Archétype A : Split 60/40
════════════════════════════════ */
.hero-split {
  background: var(--color-primary);
  min-height: 540px;
  display: grid;
  grid-template-columns: 60fr 40fr;
}
.hero-split__left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(40px, 6vw, 80px) clamp(32px, 5vw, 72px);
  gap: 24px;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.hero-label::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--color-accent);
}
.hero-h1 {
  font-family: var(--font-title);
  font-size: clamp(36px, 5vw, 68px);
  font-weight: 800;
  line-height: 1.08;
  color: #fff;
  letter-spacing: -.02em;
  text-align: left;
}
.hero-baseline {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.4vw, 18px);
  color: rgba(255,255,255,.65);
  line-height: 1.5;
  max-width: 520px;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  align-self: flex-start;
  transition: background .2s, transform .2s;
}
.hero-cta:hover { background: #1e9450; transform: translateY(-2px); }
.hero-cta svg { width: 16px; height: 16px; }

.hero-split__right {
  position: relative;
  overflow: hidden;
  min-height: 420px;
}
.hero-split__right img,
.hero-split__right .hero-thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Contenu éditorial index ── */
.index-content-section {
  padding-block: clamp(40px, 5vw, 72px);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.index-content-section .container {
  max-width: var(--max-w);
}
.index-content-inner {
  max-width: 900px;
}
.index-content-inner h2,
.index-content-inner h3 {
  font-family: var(--font-title);
  font-weight: 700;
  color: var(--color-primary);
  margin-block: 1.4em .5em;
}
.index-content-inner p {
  font-size: 17px;
  color: var(--color-text-muted);
  margin-bottom: 1em;
}

/* ── Showcase index ── */
.section-showcase {
  padding-block: clamp(48px, 6vw, 88px);
}
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
  gap: 16px;
}
.section-title {
  font-family: var(--font-title);
  font-size: clamp(22px, 2.5vw, 32px);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -.02em;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-title::before {
  content: '';
  display: block;
  width: 4px;
  height: 32px;
  background: var(--color-accent);
  border-radius: 2px;
  flex-shrink: 0;
}
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* ════════════════════════════════
   POST LOOP — Carte horizontale aérée
════════════════════════════════ */
.post-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  transition: box-shadow .25s, transform .25s;
}
.post-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.post-card__thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--color-primary);
  flex-shrink: 0;
}
.post-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.post-card:hover .post-card__thumb img { transform: scale(1.04); }

.post-card__category {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--color-accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}
.post-card__body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 10px;
}
.post-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: 500;
}
.post-card__meta .dot { color: var(--color-border); }
.post-card__title {
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  letter-spacing: -.01em;
}
.post-card:hover .post-card__title { color: var(--color-secondary); }
.post-card__excerpt {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-secondary);
  letter-spacing: .03em;
  margin-top: 4px;
  transition: gap .2s, color .2s;
}
.post-card__link:hover { color: var(--color-accent); gap: 10px; }

/* ════════════════════════════════
   POST LIST
════════════════════════════════ */
.postlist-hero {
  background: var(--color-primary);
  padding-block: clamp(40px, 5vw, 64px);
  border-bottom: 3px solid var(--color-accent);
}
.postlist-hero__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.postlist-hero__title {
  font-family: var(--font-title);
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -.02em;
  text-align: left;
}
.postlist-section {
  padding-block: clamp(40px, 5vw, 72px);
}
.postlist-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.pagination .page a,
.pagination .page span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface);
  transition: all .2s;
}
.pagination .page a:hover {
  background: var(--color-secondary);
  color: #fff;
  border-color: var(--color-secondary);
}
.pagination .page.active span,
.pagination .page.active a {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ════════════════════════════════
   POST DETAIL
════════════════════════════════ */
.post-hero {
  background: var(--color-primary);
  padding-block: clamp(32px, 4vw, 56px);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,.55);
  margin-bottom: 20px;
}
.breadcrumb a { color: rgba(255,255,255,.7); transition: color .2s; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: rgba(255,255,255,.3); }
.post-hero__cat {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}
.post-hero__title {
  font-family: var(--font-title);
  font-size: clamp(28px, 4.5vw, 56px);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -.025em;
  text-align: left;
  max-width: 860px;
}
.post-hero__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,.55);
  flex-wrap: wrap;
}
.post-hero__meta .dot { color: rgba(255,255,255,.25); }

/* Corps de l'article */
.post-body {
  padding-block: clamp(40px, 5vw, 72px);
}
.post-thumb {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: var(--shadow-hover);
  aspect-ratio: 21/9;
}
.post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.post-content {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-text);
}
.post-content h2 {
  font-family: var(--font-title);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 700;
  color: var(--color-primary);
  margin-block: 2em .6em;
  letter-spacing: -.015em;
  padding-left: 14px;
  border-left: 3px solid var(--color-accent);
}
.post-content h3 {
  font-family: var(--font-title);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 600;
  color: var(--color-primary);
  margin-block: 1.6em .5em;
}
.post-content p { margin-bottom: 1.4em; }
.post-content a { color: var(--color-secondary); text-decoration: underline; text-underline-offset: 3px; }
.post-content a:hover { color: var(--color-accent); }
.post-content ul, .post-content ol {
  padding-left: 24px;
  margin-bottom: 1.4em;
}
.post-content li { margin-bottom: .5em; }
.post-content blockquote {
  border-left: 4px solid var(--color-secondary);
  background: rgba(46,134,171,.06);
  padding: 20px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-block: 2em;
  font-style: italic;
  color: var(--color-text-muted);
}
.post-content img {
  border-radius: var(--radius-md);
  margin-block: 2em;
}
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin-block: 2em;
  font-size: 15px;
}
.post-content th, .post-content td {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  text-align: left;
}
.post-content th {
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-title);
  font-weight: 600;
}
.post-content tr:nth-child(even) td { background: rgba(46,134,171,.04); }

/* Signatory */
.post-signatory {
  margin-top: 48px;
  padding: 28px 32px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: 20px;
}
.post-signatory__icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 18px;
}
.post-signatory__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 4px;
}
.post-signatory__content { font-size: 15px; color: var(--color-text-muted); }
.post-signatory__content a { color: var(--color-secondary); font-weight: 600; }

/* Related */
.related-section {
  padding-block: 56px;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ════════════════════════════════
   FOOTER
════════════════════════════════ */
.site-footer {
  background: var(--color-nav-bg);
  color: rgba(255,255,255,.55);
  padding-block: 40px 28px;
  margin-top: auto;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copy {
  font-size: 13px;
}
.footer-copy a { color: rgba(255,255,255,.7); transition: color .2s; }
.footer-copy a:hover { color: #fff; }
.footer-accent {
  width: 3px;
  height: 28px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* ════════════════════════════════
   UTILITAIRES
════════════════════════════════ */
.tag-pill {
  display: inline-block;
  background: rgba(46,134,171,.1);
  color: var(--color-secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
  letter-spacing: .03em;
}
.reading-time-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--color-text-muted);
}
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: 40px;
}

/* ════════════════════════════════
   RESPONSIVE
════════════════════════════════ */
@media (max-width: 992px) {
  .hero-split {
    grid-template-columns: 1fr;
    min-height: unset;
  }
  .hero-split__right {
    min-height: 300px;
    order: -1;
  }
  .hero-split__right img,
  .hero-split__right .hero-thumb { position: relative; height: 300px; }
  .showcase-grid,
  .postlist-grid,
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .nav-menu { display: none; flex-direction: column; gap: 0; }
  .nav-menu.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-nav-bg);
    padding: 8px 0 16px;
    border-top: 1px solid rgba(255,255,255,.1);
  }
  .nav-menu.open a { padding: 12px 24px; border-radius: 0; }
  .nav-toggle { display: flex; }
  .site-nav { position: relative; }
  .showcase-grid,
  .postlist-grid,
  .related-grid { grid-template-columns: 1fr; }
  .nav-logo img { height: 52px; }
  .post-signatory { flex-direction: column; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero-split__left { padding: 32px 20px; }
  .post-hero { padding-block: 28px; }
  .nav-logo img { height: 48px; }
}