:root {
  --teal: #1f7a6e;
  --teal-dark: #145a51;
  --teal-light: #e8f5f2;
  --ink: #1a2421;
  --gray: #5b6664;
  --bg: #fbfbfa;
  --radius: 16px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; }

.eyebrow {
  display: block;
  color: var(--teal);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 13px;
  margin-bottom: 10px;
}
.center { text-align: center; margin-left: auto; margin-right: auto; }
section h2.center { text-align: center; margin-bottom: 48px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(31,122,110,.25); }
.btn-outline { border-color: rgba(255,255,255,.6); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); }
.btn-large { width: 100%; padding: 15px; font-size: 16px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251,251,250,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,.06);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 20px;
}
.logo { font-weight: 800; font-size: 22px; letter-spacing: 1px; color: var(--teal-dark); text-decoration: none; }
.nav { display: flex; gap: 28px; flex: 1; justify-content: center; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 500; font-size: 15px; }
.nav a:hover, .nav a.active { color: var(--teal); }
.nav-cta { white-space: nowrap; }
.burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.burger span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--teal-dark), var(--teal) 60%, #2c9483);
  color: #fff;
  padding: 110px 0 100px;
  text-align: center;
}
.hero-content { max-width: 720px; margin: 0 auto; }
.tag {
  display: inline-block;
  background: rgba(255,255,255,.15);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .5px;
  margin-bottom: 24px;
}
.hero h1 { font-size: 44px; margin-bottom: 20px; }
.hero p { font-size: 17px; opacity: .92; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Page hero (sous-pages) */
.page-hero {
  background: linear-gradient(135deg, var(--teal-dark), var(--teal) 60%, #2c9483);
  color: #fff;
  padding: 70px 0 56px;
}
.page-hero h1 { font-size: 32px; margin-top: 8px; }

/* About */
.about { padding: 100px 0; }
.about-text { max-width: 760px; }
.about-text h2 { font-size: 32px; margin-bottom: 20px; }
.about-text p { color: var(--gray); margin-bottom: 16px; }
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 36px; }
.value h3 { color: var(--teal-dark); font-size: 17px; margin-bottom: 8px; }
.value p { color: var(--gray); font-size: 14px; margin: 0; }

/* Actions */
.actions { padding: 100px 0; background: var(--teal-light); }
.actions h2 { font-size: 32px; }
.cards-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 20px; }
.cards-grid.two { grid-template-columns: repeat(2, 1fr); }
.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0,0,0,.04);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 12px 28px rgba(0,0,0,.08); }
.card-icon { font-size: 34px; margin-bottom: 14px; }
.card h3 { font-size: 17px; margin-bottom: 10px; color: var(--teal-dark); }
.card p { color: var(--gray); font-size: 14px; margin-bottom: 14px; }
.card-link { color: var(--teal); font-weight: 600; font-size: 14px; text-decoration: none; }
.card-link:hover { text-decoration: underline; }

/* Actions detail page */
.actions-detail { padding: 80px 0; }
.action-block { display: grid; grid-template-columns: 240px 1fr; gap: 40px; align-items: center; margin-bottom: 64px; }
.action-block.reverse { grid-template-columns: 1fr 240px; }
.action-block.reverse .action-thumb { order: 2; }
.action-thumb {
  height: 200px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--teal), var(--teal-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
}
.action-block h2 { font-size: 24px; color: var(--teal-dark); margin-bottom: 14px; }
.action-block p { color: var(--gray); margin-bottom: 12px; }

/* Gallery */
.gallery { padding: 60px 0 90px; }
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.gallery-item {
  aspect-ratio: 1;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--teal), var(--teal-dark));
  opacity: .85;
}
.gallery-item:nth-child(odd) { background: linear-gradient(135deg, var(--teal-dark), #2c9483); }
.gallery-note { text-align: center; color: var(--gray); margin-top: 28px; font-size: 14px; }

/* Legal */
.legal { padding: 60px 0 100px; }
.legal .container { max-width: 760px; }
.legal h2 { font-size: 19px; color: var(--teal-dark); margin: 32px 0 12px; }
.legal h2:first-child { margin-top: 0; }
.legal p { color: var(--gray); margin-bottom: 8px; }

/* Donate */
.donate { background: linear-gradient(135deg, var(--teal-dark), var(--teal)); color: #fff; padding: 90px 0; }
.donate-box { max-width: 560px; margin: 0 auto; text-align: center; }
.donate-box h2 { font-size: 30px; margin-bottom: 14px; }
.donate-box p { opacity: .9; margin-bottom: 32px; }
.newsletter-form { display: flex; gap: 10px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.2); border-radius: 999px; padding: 6px 6px 6px 22px; }
.newsletter-form input {
  flex: 1;
  border: none;
  background: transparent;
  color: #fff;
  font-family: inherit;
  font-size: 14px;
  outline: none;
}
.newsletter-form input::placeholder { color: rgba(255,255,255,.7); }

/* Contact */
.contact { padding: 100px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact h2 { font-size: 30px; margin: 10px 0 14px; }
.contact > div > p { color: var(--gray); margin-bottom: 20px; }
.contact-info { list-style: none; }
.contact-info li { margin-bottom: 12px; color: var(--ink); font-size: 15px; }
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.contact-form input, .contact-form textarea {
  padding: 13px 16px;
  border-radius: 10px;
  border: 1px solid rgba(0,0,0,.15);
  font-family: inherit;
  font-size: 14px;
  resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--teal); }

/* Footer */
.footer { background: var(--ink); color: rgba(255,255,255,.85); padding: 64px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.footer .logo { color: #fff; }
.footer p { color: rgba(255,255,255,.6); font-size: 14px; margin-top: 10px; }
.footer h4 { font-size: 14px; margin-bottom: 14px; color: #fff; }
.footer a { display: block; color: rgba(255,255,255,.65); text-decoration: none; font-size: 14px; margin-bottom: 10px; }
.footer a:hover { color: #fff; }
.footer-bottom { text-align: center; color: rgba(255,255,255,.4); font-size: 13px; margin-top: 40px; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--teal-dark);
  color: #fff;
  padding: 14px 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
  transform: translateY(20px);
  opacity: 0;
  pointer-events: none;
  transition: all .25s ease;
  z-index: 200;
}
.toast.show { transform: translateY(0); opacity: 1; }

/* Responsive */
@media (max-width: 900px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .cards-grid.two { grid-template-columns: 1fr; }
  .values { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .action-block, .action-block.reverse { grid-template-columns: 1fr; }
  .action-block.reverse .action-thumb { order: 0; }
  .action-thumb { height: 140px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .nav, .nav-cta { display: none; }
  .burger { display: flex; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: #fff;
    padding: 20px 24px;
    gap: 16px;
    box-shadow: 0 12px 24px rgba(0,0,0,.08);
  }
  .hero h1 { font-size: 32px; }
  .hero-actions { flex-direction: column; }
  .newsletter-form { flex-direction: column; border-radius: var(--radius); padding: 18px; }
  .newsletter-form .btn { width: 100%; }
}