/* ================================================================
   tourisme-coeurdepuisaye.fr — Design "Terres ocres & étangs"
   CSS statique pur — Astro 6 — 2026-06-26
   ================================================================ */

/* --- Reset & anti-distorsion images (règle f:/web/CLAUDE.md) --- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; }
img { max-width: 100%; height: auto; display: block; }

/* Wrappers anti-distorsion images — OBLIGATOIRES (2026-06-17) */
.img-hero     { aspect-ratio: 16/9; overflow: hidden; }
.img-card     { aspect-ratio: 3/2;  overflow: hidden; }
.img-body     { aspect-ratio: 3/2;  overflow: hidden; margin: 2rem 0; }
.img-portrait { aspect-ratio: 1/1;  overflow: hidden; border-radius: 50%; }
.img-hero img, .img-card img, .img-body img, .img-portrait img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center top;
}

/* --- Palette "Terres ocres & étangs" --- */
:root {
  --ocre-puisaye: #B8783A;
  --ocre-puisaye-dark: #9F6526;
  --vert-sous-bois: #3F5A3D;
  --vert-sous-bois-light: #5A7958;
  --bleu-etang: #5B7A8C;
  --gres-clair: #C9B898;
  --gres-pale: #E8DFCC;
  --creme-puisaye: #F6F0E4;
  --creme-clair: #FBF7EE;
  --or-vieilli: #9F7B3F;
  --encre: #1F2424;
  --encre-doux: #3A4040;
  --gris-doux: #6E6E6E;
  --blanc: #FFFFFF;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Source Serif 4', 'Source Serif Pro', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --container: 1180px;
  --container-narrow: 760px;
  --radius: 4px;
  --shadow-card: 0 2px 12px rgba(31, 36, 36, 0.07);
  --shadow-hover: 0 6px 24px rgba(31, 36, 36, 0.12);
}

/* --- Typography --- */
body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.7;
  color: var(--encre);
  background: var(--creme-puisaye);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--encre);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); margin: 0 0 1.5rem; }
h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  margin: 3rem 0 1.25rem;
  padding-bottom: 0.6rem;
  /* Filet doublé : 1px vert + 3px ocre */
  border-bottom: 3px solid var(--ocre-puisaye);
  box-shadow: inset 0 -5px 0 -4px var(--vert-sous-bois);
}
h3 { font-size: clamp(1.2rem, 2.5vw, 1.45rem); margin: 2rem 0 1rem; color: var(--vert-sous-bois); }
h4 { font-size: 1.15rem; margin: 1.5rem 0 0.75rem; color: var(--or-vieilli); }

p { margin: 0 0 1.2rem; }

a {
  color: var(--ocre-puisaye-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}
a:hover { color: var(--vert-sous-bois); }

ul, ol { margin: 0 0 1.2rem; padding-left: 1.5rem; }
li { margin-bottom: 0.4rem; }

strong { color: var(--encre); font-weight: 700; }
em { color: var(--encre-doux); }

blockquote {
  border-left: 4px solid var(--ocre-puisaye);
  margin: 2rem 0;
  padding: 0.5rem 0 0.5rem 1.5rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--encre-doux);
  background: var(--creme-clair);
}

/* --- Lettrine --- */
.lettrine::first-letter,
article.article-body > p:first-of-type::first-letter {
  font-family: var(--font-display);
  float: left;
  font-size: 4.5rem;
  line-height: 0.9;
  padding: 0.25rem 0.75rem 0 0;
  color: var(--ocre-puisaye);
  font-weight: 700;
}

/* --- Kicker mono --- */
.kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--or-vieilli);
  margin-bottom: 1rem;
  display: block;
}

/* --- Container --- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 1.5rem; }

/* --- Header --- */
.site-header {
  background: var(--creme-clair);
  border-bottom: 1px solid var(--gres-pale);
  padding: 1rem 0;
  position: sticky; top: 0; z-index: 50;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--encre);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand-dot { color: var(--ocre-puisaye); }
.nav-main { display: flex; gap: 1.5rem; flex-wrap: wrap; align-items: center; }
.nav-main a {
  color: var(--encre-doux);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
  transition: all 0.15s ease;
}
.nav-main a:hover, .nav-main a.active {
  color: var(--ocre-puisaye-dark);
  border-bottom-color: var(--ocre-puisaye);
}

/* --- Footer --- */
.site-footer {
  background: var(--encre);
  color: var(--creme-puisaye);
  padding: 3rem 0 2rem;
  margin-top: 5rem;
}
.site-footer a { color: var(--gres-clair); }
.site-footer a:hover { color: var(--ocre-puisaye); }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--creme-puisaye);
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--or-vieilli);
  padding-bottom: 0.4rem;
}
.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid #333;
  font-size: 0.85rem;
  color: var(--gres-clair);
}

/* --- Hero homepage --- */
.hero-home {
  background: linear-gradient(135deg, var(--creme-clair) 0%, var(--gres-pale) 100%);
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.hero-home::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top right, rgba(184, 120, 58, 0.08), transparent 60%);
  pointer-events: none;
}
.hero-home .container { position: relative; }
.hero-home h1 {
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  margin-bottom: 1rem;
}
.hero-home .lead {
  font-size: 1.25rem;
  color: var(--encre-doux);
  max-width: 620px;
  line-height: 1.5;
}
.hero-home-media {
  margin-top: 2.5rem;
  border-radius: 4px;
  box-shadow: 0 18px 40px -18px rgba(31, 36, 36, 0.45);
  border: 1px solid var(--gres-pale);
}
.hero-home-media.img-hero { aspect-ratio: 21/9; overflow: hidden; }
@media (max-width: 640px) {
  .hero-home-media.img-hero { aspect-ratio: 16/10; }
}

/* --- Hero article --- */
.hero-article {
  padding: 3rem 0 1rem;
  background: var(--creme-clair);
  border-bottom: 1px solid var(--gres-pale);
}
.hero-article h1 { max-width: 820px; }
.hero-article .meta { color: var(--gris-doux); font-size: 0.9rem; }

/* --- Pillar cards --- */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2.5rem 0;
}
.pillar-card {
  background: var(--blanc);
  padding: 1.75rem 1.5rem;
  border: 1px solid var(--gres-pale);
  border-top: 4px solid var(--ocre-puisaye);
  /* Coin coupé haut-droit — tuile bourguignonne */
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  color: inherit;
  display: block;
}
.pillar-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.pillar-card .kicker { color: var(--vert-sous-bois); margin-bottom: 0.5rem; }
.pillar-card h3 {
  margin: 0 0 0.6rem;
  color: var(--encre);
  font-size: 1.2rem;
}
.pillar-card p {
  color: var(--encre-doux);
  font-size: 0.95rem;
  margin: 0;
}

/* --- Article cards (blog) --- */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2.5rem 0;
}
.article-card {
  background: var(--blanc);
  border: 1px solid var(--gres-pale);
  text-decoration: none;
  color: inherit;
  display: flex; flex-direction: column;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.article-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.article-card .img-card { border-bottom: 3px solid var(--ocre-puisaye); }
.article-card .article-card-body { padding: 1.25rem 1.4rem 1.5rem; flex: 1; display: flex; flex-direction: column; }
.article-card h3 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  color: var(--encre);
}
.article-card p { color: var(--encre-doux); font-size: 0.93rem; margin: 0 0 0.75rem; }
.article-card .category-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--vert-sous-bois);
  margin-top: auto;
}

/* --- Article body --- */
.article-body {
  font-size: 1.07rem;
  line-height: 1.78;
}
.article-body .container-narrow > p:first-of-type { font-size: 1.15rem; }

/* --- TOC --- */
.article-toc {
  background: var(--creme-clair);
  border-left: 3px solid var(--or-vieilli);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  font-size: 0.95rem;
}
.article-toc .toc-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--or-vieilli);
  margin-bottom: 0.75rem;
}
.article-toc ol { list-style: none; padding-left: 0; margin: 0; counter-reset: toc; }
.article-toc li { counter-increment: toc; margin-bottom: 0.4rem; padding-left: 2.2rem; position: relative; }
.article-toc li::before {
  content: counter(toc, decimal-leading-zero) ".";
  position: absolute; left: 0;
  font-family: var(--font-mono);
  color: var(--or-vieilli);
  font-weight: 700;
  font-size: 0.85rem;
}
.article-toc a { color: var(--encre-doux); text-decoration: none; }
.article-toc a:hover { color: var(--ocre-puisaye-dark); text-decoration: underline; }

@media (min-width: 1100px) {
  .article-toc.sticky {
    position: sticky; top: 90px;
  }
}

/* --- FAQ accordion --- */
.faq-block { margin: 3rem 0; }
.faq-item {
  border-bottom: 1px solid var(--gres-pale);
  padding: 0;
}
.faq-item summary {
  cursor: pointer;
  padding: 1.1rem 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--encre);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--ocre-puisaye);
  font-weight: 400;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 0 1.25rem; color: var(--encre-doux); }

/* --- Pull quote --- */
.pull-quote {
  border-left: 4px solid var(--ocre-puisaye);
  padding: 0.5rem 0 0.5rem 1.5rem;
  margin: 2.5rem 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--vert-sous-bois);
  line-height: 1.4;
}

/* --- NavRelated --- */
.nav-related {
  background: var(--creme-clair);
  padding: 2rem 1.5rem;
  margin: 3rem 0;
  border: 1px solid var(--gres-pale);
}
.nav-related h3 {
  margin-top: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--or-vieilli);
}
.nav-related ul { list-style: none; padding-left: 0; }
.nav-related li { margin-bottom: 0.5rem; }

/* --- Category filter (JS vanilla) --- */
.category-filter {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
  margin: 2rem 0;
}
.category-filter button {
  background: transparent;
  border: 1px solid var(--gres-clair);
  padding: 0.5rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--encre-doux);
  cursor: pointer;
  border-radius: var(--radius);
  transition: all 0.15s ease;
}
.category-filter button:hover { border-color: var(--ocre-puisaye); color: var(--ocre-puisaye-dark); }
.category-filter button.active {
  background: var(--ocre-puisaye);
  color: var(--blanc);
  border-color: var(--ocre-puisaye);
}

/* --- Section --- */
.section { padding: 4rem 0; }
.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
}
.section-title .kicker { text-align: center; }

/* --- Button CTA --- */
.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  background: var(--ocre-puisaye);
  color: var(--blanc);
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 600;
  border-radius: var(--radius);
  transition: background 0.15s ease;
}
.btn:hover { background: var(--ocre-puisaye-dark); color: var(--blanc); }
.btn-ghost {
  background: transparent;
  color: var(--ocre-puisaye-dark);
  border: 1px solid var(--ocre-puisaye);
}
.btn-ghost:hover { background: var(--ocre-puisaye); color: var(--blanc); }

/* --- Utility --- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* --- Reveal fade-up (IntersectionObserver) --- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-main { gap: 0.9rem; font-size: 0.88rem; }
  .nav-main a { font-size: 0.88rem; }
  .hero-home { padding: 3rem 0 2.5rem; }
  body { font-size: 17px; }
}