/* ===== Variables & base ===== */
:root {
  --color-bg: #f8f6f3;
  --color-bg-alt: #fff;
  --color-text: #2c2c2c;
  --color-text-muted: #5a5a5a;
  --color-primary: #8b4513;
  --color-primary-dark: #6b3410;
  --color-accent: #c4a35a;
  --color-border: #e0d9d0;
  --font-serif: 'Source Serif 4', Georgia, serif;
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --space-unit: 1rem;
  --container: min(90vw, 1100px);
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* Taille de police confortable pour seniors, contrastes suffisants */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.25;
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-top: 0; }
h3 { font-size: 1.25rem; }

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

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

.skip-link {
  position: absolute;
  top: -100px;
  left: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  z-index: 200;
  border-radius: var(--radius);
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 0.5rem;
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-unit);
  padding-right: var(--space-unit);
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(248, 246, 243, 0.97);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.logo {
  display: flex;
  align-items: center;
  color: var(--color-text);
}
.logo img {
  height: 56px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  display: block;
}
.logo:hover img { opacity: 0.9; }

.nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
}
.nav a:hover { color: var(--color-primary); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-bg-alt);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    box-shadow: var(--shadow);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 64px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.6) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
  padding: 2rem 1rem;
}

.hero-content h1 {
  color: #fff;
  margin-bottom: 0.75rem;
  text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 1.5rem;
  opacity: 0.95;
  line-height: 1.5;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); }

/* ===== Sections ===== */
.section {
  padding: 4rem 0;
}
.section--light {
  background: var(--color-bg-alt);
}

.section-title {
  margin-bottom: 1.5rem;
  color: var(--color-text);
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--color-accent);
  display: inline-block;
}

.lead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.section p {
  margin: 0 0 1rem;
  max-width: 70ch;
}

/* Mission list */
.mission-list {
  margin: 0;
  padding-left: 1.25rem;
  max-width: 60ch;
}
.mission-list li {
  margin-bottom: 0.6rem;
  padding-left: 0.25rem;
}

/* Villa (lieu & composition) */
.villa-block {
  margin-top: 2rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}
.villa-block:first-of-type { margin-top: 1rem; }
.villa-block:last-child { border-bottom: none; }

.villa-block h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary-dark);
}

.villa-list {
  margin: 0;
  padding-left: 1.25rem;
  list-style: disc;
}
.villa-list li {
  margin-bottom: 0.75rem;
  padding-left: 0.35rem;
  max-width: 72ch;
}
.villa-block p { max-width: 60ch; }

/* Fondateurs */
.intro-promo {
  margin-bottom: 2rem;
}

.fondateurs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.fondateur-card {
  background: var(--color-bg);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  border: 1px solid var(--color-border);
}

.fondateur-avatar {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.fondateur-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}
.fondateur-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.service-card {
  background: var(--color-bg-alt);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  border-color: var(--color-accent);
}

.service-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.75rem;
}

.service-card h3 {
  margin-bottom: 0.5rem;
}
.service-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* Galerie */
.galerie-intro {
  margin-bottom: 1.5rem;
}

.galerie {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.galerie-item {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--color-border);
  aspect-ratio: 4/3;
}

.galerie-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.galerie-item:hover img {
  transform: scale(1.03);
}

/* Contact */
.contact-intro {
  margin-bottom: 1.5rem;
}

.contact-block {
  background: var(--color-bg);
  padding: 1.5rem 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  max-width: 400px;
}
.contact-block p { margin: 0.5rem 0; }

/* Footer */
.footer {
  background: var(--color-text);
  color: #e8e6e3;
  padding: 2.5rem 0;
  margin-top: 3rem;
  text-align: center;
}

.footer-logo {
  margin-bottom: 0.75rem;
}
.footer-logo img {
  height: 40px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  display: inline-block;
  vertical-align: middle;
}

.footer-credits {
  font-size: 0.9rem;
  opacity: 0.9;
  margin-bottom: 0.5rem;
}

.footer-year {
  font-size: 0.85rem;
  opacity: 0.75;
  margin: 0;
}

/* Responsive ajustements lecture */
@media (max-width: 768px) {
  body { font-size: 17px; }
  .section { padding: 3rem 0; }
  .section p { max-width: none; }
  .fondateurs { grid-template-columns: 1fr; }
  .galerie { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
  .galerie-item { aspect-ratio: 1; }
}

@media (max-width: 480px) {
  .galerie { grid-template-columns: 1fr; }
}