@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,wght@0,400;0,500;1,400&family=Inter:wght@400;500;600&display=swap');

:root {
  --granit: #F7F5F0;
  --granit-alt: #EDE9E0;
  --olivier-fonce: #3D4A3A;
  --olivier: #6B7A5E;
  --olivier-vif: #7C9463;
  --olivier-clair: #E4E9DC;
  --pierre: #8B9188;
  --encre: #2B2B27;
  --blanc: #FFFFFF;
  --bordure: #DEDACF;

  --font-titre: 'Fraunces', Georgia, serif;
  --font-corps: 'Inter', -apple-system, sans-serif;

  --max-width: 1100px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-corps);
  color: var(--encre);
  background-color: var(--granit);
  background-image:
    radial-gradient(circle at 6% 10%, var(--olivier-clair) 0%, transparent 8%),
    radial-gradient(circle at 94% 6%, var(--olivier-clair) 0%, transparent 7%),
    radial-gradient(circle at 88% 55%, var(--olivier-clair) 0%, transparent 9%),
    radial-gradient(circle at 4% 65%, var(--olivier-clair) 0%, transparent 8%),
    radial-gradient(circle at 50% 92%, var(--olivier-clair) 0%, transparent 10%),
    radial-gradient(circle at 30% 35%, var(--bordure) 0%, transparent 4%),
    radial-gradient(circle at 70% 80%, var(--bordure) 0%, transparent 4%);
  background-attachment: fixed;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-titre);
  font-weight: 500;
  color: var(--olivier-fonce);
  line-height: 1.25;
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 400; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
h3 { font-size: 1.15rem; }

a {
  color: var(--olivier);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

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

/* ---------- NAVIGATION ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--bordure);
}

.nav-wrap {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-titre);
  font-size: 1.2rem;
  color: var(--olivier-fonce);
  letter-spacing: 0.02em;
}

.logo:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.8rem;
  list-style: none;
}

.nav-links a {
  color: var(--encre);
  font-size: 0.92rem;
  font-weight: 500;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover {
  color: var(--olivier-fonce);
  text-decoration: none;
}

.nav-links a.active {
  color: var(--olivier-fonce);
  border-bottom-color: var(--olivier);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--olivier-fonce);
  cursor: pointer;
  line-height: 1;
}

.nav-links.open {
  display: flex !important;
}

/* ---------- SEPARATEUR SIGNATURE (branche d'olivier) ---------- */

.divider {
  display: flex;
  justify-content: center;
  margin: 3rem 0;
}

.divider svg {
  width: 140px;
  height: 24px;
  stroke: var(--olivier);
}

.divider svg ellipse {
  fill: var(--olivier-clair);
}

.hero {
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0.2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 40px;
  opacity: 0.55;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 60'%3E%3Cg fill='none' stroke='%236B7A5E' stroke-width='1.6' stroke-linecap='round'%3E%3Cpath d='M6 52 C 30 40, 55 30, 94 8'/%3E%3Cellipse cx='24' cy='42' rx='7' ry='3' transform='rotate(-28 24 42)' fill='%23E4E9DC'/%3E%3Cellipse cx='40' cy='33' rx='7' ry='3' transform='rotate(-28 40 33)' fill='%23E4E9DC'/%3E%3Cellipse cx='56' cy='24' rx='7' ry='3' transform='rotate(-28 56 24)' fill='%23E4E9DC'/%3E%3Cellipse cx='72' cy='16' rx='7' ry='3' transform='rotate(-28 72 16)' fill='%23E4E9DC'/%3E%3Ccircle cx='86' cy='10' r='4' fill='%237C9463' stroke='none'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: contain;
}

/* ---------- SECTIONS GENERIQUES ---------- */

.section {
  padding: 4rem 0;
}

.section-alt {
  background: var(--granit-alt);
}

.hero {
  text-align: center;
  padding: 5rem 0 3rem;
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--olivier);
  font-weight: 600;
  margin-bottom: 0.8rem;
  display: block;
}

.lede {
  font-size: 1.1rem;
  color: var(--pierre);
  max-width: 40ch;
  margin: 1rem auto 0;
}

/* ---------- CARTES ---------- */

.card {
  background: var(--blanc);
  border: 1px solid var(--bordure);
  border-top: 3px solid var(--olivier-vif);
  border-radius: 10px;
  padding: 1.5rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

/* ---------- BOUTONS ---------- */

.btn {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--olivier-fonce);
  transition: background 0.15s ease;
}

.btn-primary {
  background: var(--olivier-fonce);
  color: var(--blanc);
}

.btn-primary:hover {
  background: var(--olivier);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: var(--olivier-fonce);
}

.btn-outline:hover {
  background: var(--olivier-fonce);
  color: var(--blanc);
  text-decoration: none;
}

/* ---------- ACCORDEON (programme / FAQ) ---------- */

.accordion-item {
  border: 1px solid var(--bordure);
  border-radius: 8px;
  margin-bottom: 0.8rem;
  background: var(--blanc);
  overflow: hidden;
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.3rem;
  cursor: pointer;
  font-weight: 500;
}

.accordion-header .heure {
  color: var(--olivier);
  font-weight: 600;
  margin-right: 0.6rem;
}

.accordion-icon {
  transition: transform 0.2s ease;
  color: var(--pierre);
}

.accordion-item.open .accordion-icon {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
  padding: 0 1.3rem;
}

.accordion-item.open .accordion-body {
  max-height: 300px;
  padding: 0 1.3rem 1.2rem;
}

.accordion-body p {
  color: var(--pierre);
}

/* ---------- FOOTER ---------- */

.site-footer {
  position: relative;
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--pierre);
  font-size: 0.85rem;
  border-top: 1px solid var(--bordure);
}

.site-footer::before {
  content: "";
  display: block;
  width: 90px;
  height: 18px;
  margin: 0 auto 1.2rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 20'%3E%3Cg fill='none' stroke='%238B9188' stroke-width='1.4'%3E%3Cellipse cx='18' cy='14' rx='11' ry='5'/%3E%3Cellipse cx='40' cy='10' rx='8' ry='4'/%3E%3Cellipse cx='60' cy='14' rx='13' ry='5.5'/%3E%3Cellipse cx='82' cy='11' rx='9' ry='4'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.6;
}

/* ---------- RESPONSIVE ---------- */

@media (max-width: 720px) {
  .container {
    padding: 0 1.25rem;
  }

  .menu-toggle {
    display: block;
    position: relative;
    z-index: 300;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    margin: 0;
    background: var(--granit);
    flex-direction: column;
    gap: 0;
    padding: 5.5rem 0 2rem;
    z-index: 250;
    overflow-y: auto;
  }

  .nav-links a {
    padding: 1.1rem 1.5rem;
    width: 100%;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--bordure);
    border-left: 3px solid transparent;
  }

  .nav-links a.active {
    border-left-color: var(--olivier);
    background: var(--granit-alt);
  }

  .section {
    padding: 2.5rem 0;
  }

  .hero {
    padding: 3rem 0 2rem;
  }

  .rsvp-form {
    padding: 0 0.1rem;
  }

  .event-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }
}