/* ===========================================================
   Le marché aux données — charte rétrofuturiste (Antonin Bareau)
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Anton&family=Oswald:wght@400;700&family=Inter:wght@400;600&display=swap');

:root {
  --retro-teal:   #127676;
  --retro-orange: #E4632E;
  --retro-jaune:  #E3A535;
  --retro-ink:    #0D1617;
  --retro-paper:  #F2EFE6;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--retro-ink);
  background-color: var(--retro-ink);
  background-image: url('../img/fond_art_nouveau.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  min-height: 100vh;
}

h1, h2, h3 {
  font-family: 'Anton', 'Oswald', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1.1;
}

a { color: var(--retro-orange); text-decoration: none; }
a:hover { color: var(--retro-jaune); }

p { margin-bottom: 1rem; }

button, a, [role="button"] { min-height: 44px; }

/* ===== Page frame ===== */
.page-frame {
  position: relative;
  background: var(--retro-paper);
  border: 3px solid var(--retro-orange);
  box-shadow: inset 0 0 0 2px var(--retro-teal);
  border-radius: 24px 8px 24px 8px;
  margin: 16px;
  overflow: clip;
}

@media (min-width: 640px) {
  .page-frame { margin: 40px; }
}
@media (min-width: 1024px) {
  .page-frame { margin: 80px 120px; }
}

/* Coins ornés — variante B (Floral Nouveau) */
.corner-flourish {
  position: absolute;
  color: var(--retro-teal);
  opacity: 0.55;
  pointer-events: none;
  width: 36px;
  height: 36px;
  z-index: 2;
}
.corner-flourish.top-left  { top: 8px; left: 8px; }
.corner-flourish.top-right { top: 8px; right: 8px; transform: scaleX(-1); }
.corner-flourish.bottom-left  { bottom: 8px; left: 8px; transform: scaleY(-1); }
.corner-flourish.bottom-right { bottom: 8px; right: 8px; transform: scale(-1); }

@media (min-width: 640px) { .corner-flourish { width: 48px; height: 48px; } }
@media (min-width: 1024px) { .corner-flourish { width: 60px; height: 60px; } }

/* ===== Header sticky ===== */
.retro-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--retro-ink);
  border-bottom: 3px solid var(--retro-teal);
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.retro-logo {
  font-family: 'Anton', sans-serif;
  font-size: 1.25rem;
  color: var(--retro-jaune);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.retro-logo a { color: inherit; }

.retro-nav-links {
  display: none;
  gap: 1.5rem;
  align-items: center;
}
.retro-nav-link {
  color: var(--retro-paper);
  font-family: 'Oswald', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.95rem;
  border-bottom: 2px solid transparent;
  padding: 0.25rem 0;
  transition: color 0.2s, border-color 0.2s;
}
.retro-nav-link:hover,
.retro-nav-link.active { color: var(--retro-jaune); border-bottom-color: var(--retro-jaune); }

.retro-nav-burger {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 2px solid var(--retro-teal);
  border-radius: 6px;
  padding: 8px;
  cursor: pointer;
}
.retro-nav-burger span {
  display: block;
  height: 2px;
  background: var(--retro-jaune);
  border-radius: 2px;
}

.retro-nav-mobile {
  display: none;
  flex-direction: column;
  width: 100%;
  margin-top: 0.75rem;
  gap: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(242,239,230,0.15);
}
.retro-nav-mobile.open { display: flex; }
.retro-nav-mobile .retro-nav-link {
  display: block;
  font-size: 1.1rem;
}

@media (min-width: 768px) {
  .retro-header { padding: 1rem 2.5rem; }
  .retro-logo { font-size: 1.5rem; }
  .retro-nav-links { display: flex; }
  .retro-nav-burger, .retro-nav-mobile { display: none !important; }
}

/* ===== Hero ===== */
.retro-hero {
  background: var(--retro-ink);
  color: var(--retro-paper);
  padding: 3rem 1.25rem;
  position: relative;
  overflow: hidden;
}

.retro-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.retro-hero-eyebrow {
  font-family: 'Oswald', sans-serif;
  color: var(--retro-jaune);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.retro-hero-title {
  font-family: 'Anton', sans-serif;
  font-size: clamp(2.5rem, 8vw, 5rem);
  color: var(--retro-paper);
  line-height: 1.05;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.retro-hero-title span { color: var(--retro-orange); }

.retro-hero-sub {
  font-size: 1.15rem;
  color: rgba(242,239,230,0.85);
  margin-bottom: 2rem;
  max-width: 36rem;
}

.retro-hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}
.retro-hero-visual svg {
  width: 100%;
  max-width: 380px;
  height: auto;
}

@media (min-width: 1024px) {
  .retro-hero { padding: 5rem 2.5rem; min-height: 70vh; }
  .retro-hero-inner { grid-template-columns: 1fr 1fr; gap: 4rem; }
  .retro-hero-visual { order: -1; }
}

/* ===== Buttons ===== */
.retro-btn {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.95rem;
  padding: 0.9rem 1.75rem;
  border-radius: 12px 4px 12px 4px;
  border: 2px solid var(--retro-orange);
  background: var(--retro-orange);
  color: var(--retro-paper);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.retro-btn:hover {
  background: var(--retro-jaune);
  border-color: var(--retro-jaune);
  color: var(--retro-ink);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(228,99,46,0.3);
}
.retro-btn-secondary {
  background: transparent;
  color: var(--retro-paper);
}
.retro-btn-secondary:hover {
  background: var(--retro-paper);
  color: var(--retro-ink);
}

/* ===== Sections ===== */
.retro-section-light { background: var(--retro-paper); padding: 4rem 1.25rem; }
.retro-section-dark  { background: var(--retro-ink); padding: 4rem 1.25rem; color: var(--retro-paper); }

@media (min-width: 1024px) {
  .retro-section-light, .retro-section-dark { padding: 5rem 2.5rem; }
}

.retro-section-inner { max-width: 1100px; margin: 0 auto; }

.retro-section-title {
  font-family: 'Anton', sans-serif;
  font-size: clamp(1.8rem, 5vw, 3rem);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2rem;
  position: relative;
  color: var(--retro-teal);
}
.retro-section-dark .retro-section-title { color: var(--retro-jaune); }
.retro-section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--retro-orange);
  margin-top: 0.75rem;
}

/* ===== Cards ===== */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2rem;
}
@media (min-width: 640px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
}

.retro-card-secondary {
  background: var(--retro-paper);
  border: 3px solid var(--retro-teal);
  border-radius: 8px 24px 8px 24px;
  box-shadow: inset 0 0 0 2px var(--retro-orange);
  padding: 1.75rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  color: var(--retro-ink);
}
.retro-card-secondary:hover {
  transform: translateY(-4px);
  box-shadow: inset 0 0 0 2px var(--retro-orange), 0 12px 32px rgba(18,118,118,0.25);
}
.retro-card-secondary h3 {
  font-family: 'Oswald', sans-serif;
  color: var(--retro-orange);
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}

.retro-card-tertiary {
  background: var(--retro-paper);
  border: 2px solid var(--retro-teal);
  border-radius: 12px 4px 12px 4px;
  box-shadow: inset 0 0 0 1px var(--retro-orange);
  padding: 1rem 1.25rem;
  color: var(--retro-ink);
}

/* ===== Citation ===== */
.retro-quote {
  margin: 3rem auto 0;
  max-width: 760px;
  padding: 2rem;
  border-left: 4px solid var(--retro-orange);
  background: rgba(18,118,118,0.05);
  font-family: 'Inter', sans-serif;
  font-size: 1.15rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--retro-ink);
  border-radius: 0 16px 0 16px;
}
.retro-section-dark .retro-quote {
  color: var(--retro-paper);
  background: rgba(228,99,46,0.08);
}
.retro-quote cite {
  display: block;
  margin-top: 1rem;
  font-family: 'Oswald', sans-serif;
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.9rem;
  color: var(--retro-teal);
}

/* ===== Bio ===== */
.retro-bio {
  max-width: 760px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.75;
}
.retro-bio a {
  border-bottom: 2px solid var(--retro-orange);
  padding-bottom: 2px;
}

/* ===== Tables ===== */
.retro-table-wrap { overflow-x: auto; margin: 1.5rem 0 2rem; }
.retro-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 480px;
  font-size: 0.95rem;
  background: var(--retro-paper);
  border: 2px solid var(--retro-teal);
  border-radius: 8px;
  overflow: hidden;
}
.retro-table th, .retro-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(18,118,118,0.2);
  vertical-align: top;
}
.retro-table th {
  background: var(--retro-teal);
  color: var(--retro-paper);
  font-family: 'Oswald', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.85rem;
}
.retro-table tr:last-child td { border-bottom: none; }
.retro-table tr:nth-child(even) td { background: rgba(18,118,118,0.05); }

/* ===== Règles — sections numérotées ===== */
.rules-block {
  margin: 2.5rem 0;
  padding: 1.5rem 1.75rem;
  background: var(--retro-paper);
  border-left: 5px solid var(--retro-orange);
  border-radius: 0 16px 0 16px;
}
.rules-block h3 {
  font-family: 'Anton', sans-serif;
  color: var(--retro-teal);
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  text-transform: uppercase;
}
.rules-block h4 {
  font-family: 'Oswald', sans-serif;
  color: var(--retro-orange);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 1.25rem 0 0.5rem;
}
.rules-block ul, .rules-block ol {
  margin: 0.75rem 0 1rem 1.5rem;
}
.rules-block li { margin-bottom: 0.4rem; }

.rules-toc {
  background: rgba(18,118,118,0.07);
  border: 2px solid var(--retro-teal);
  border-radius: 16px 4px 16px 4px;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}
.rules-toc h3 {
  font-family: 'Oswald', sans-serif;
  text-transform: uppercase;
  color: var(--retro-teal);
  font-size: 1rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}
.rules-toc ol { margin-left: 1.5rem; }
.rules-toc a { color: var(--retro-ink); border-bottom: 1px dashed var(--retro-orange); }
.rules-toc a:hover { color: var(--retro-orange); }

/* ===== Téléchargements ===== */
.downloads-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}
@media (min-width: 768px) {
  .downloads-grid { grid-template-columns: repeat(3, 1fr); }
}

.download-card {
  background: var(--retro-paper);
  border: 3px solid var(--retro-teal);
  border-radius: 8px 24px 8px 24px;
  box-shadow: inset 0 0 0 2px var(--retro-orange);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.download-card:hover {
  transform: translateY(-4px);
  box-shadow: inset 0 0 0 2px var(--retro-orange), 0 12px 32px rgba(18,118,118,0.25);
}
.download-card .dl-icon {
  font-size: 2.5rem;
  color: var(--retro-orange);
}
.download-card h3 {
  font-family: 'Oswald', sans-serif;
  color: var(--retro-teal);
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.download-card p { flex: 1; font-size: 0.95rem; }
.download-card .dl-meta {
  font-size: 0.825rem;
  color: rgba(13,22,23,0.7);
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.downloads-notice {
  margin-top: 2.5rem;
  padding: 1rem 1.25rem;
  background: rgba(228,99,46,0.08);
  border-left: 4px solid var(--retro-orange);
  border-radius: 0 12px 0 12px;
  font-size: 0.95rem;
}

/* ===== Séparateur ===== */
.retro-separator {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 2.5rem 0;
  color: var(--retro-teal);
  font-size: 1.5rem;
}
.retro-separator::before,
.retro-separator::after {
  content: '';
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--retro-teal) 20%, var(--retro-teal) 80%, transparent);
}

/* ===== Footer ===== */
.retro-footer {
  background: var(--retro-ink);
  border-top: 3px solid var(--retro-teal);
  padding: 3rem 1.5rem 2.5rem;
  color: var(--retro-paper);
  text-align: center;
}
.retro-footer-ornament { color: var(--retro-teal); font-size: 1.5rem; margin-bottom: 1.5rem; }
.retro-footer-credit {
  font-family: 'Oswald', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}
.retro-footer-licence {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  color: rgba(242,239,230,0.6);
}
.retro-footer-link {
  color: var(--retro-jaune);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.retro-footer-link:hover { border-bottom-color: var(--retro-jaune); }

/* ===== Utilitaires ===== */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }