:root {
  --bg: #ffffff;
  --panel: #ffffff;
  --text: #1f2430;
  --muted: #5b6275;
  --primary: #00bfa6; /* turquoise */
  --primary-2: #ffd166; /* jaune ensoleillé */
  --focus: #1e88e5; /* bleu ciel pour focus */
  --success: #1fa97a;
  --shadow: 0 10px 24px rgba(17, 18, 22, 0.06);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Helvetica Neue", sans-serif;
  background: url('./assets/butterflies.svg') left 80px / 320px no-repeat,
              url('./assets/sun.svg') right -40px top -40px / 320px no-repeat,
              url('./assets/leaves.svg') right -60px bottom -60px / 360px no-repeat,
              url('./assets/waves.svg') center bottom / cover no-repeat,
              url('./assets/flowers.svg') right top / 600px no-repeat,
              radial-gradient(1200px 800px at 90% -10%, rgba(255,209,102,.25), transparent),
              radial-gradient(1000px 700px at 10% 0%, rgba(76,201,240,.22), transparent),
              radial-gradient(1200px 900px at 60% 120%, rgba(0,191,166,.16), transparent),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus { left: 16px; top: 16px; width: auto; height: auto; background: var(--focus); color: #ffffff; padding: 8px 12px; border-radius: 8px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.75);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,.06);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; }
.logo-mark { display: inline-flex; width: 28px; height: 28px; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary), var(--primary-2)); border-radius: 8px; box-shadow: 0 8px 18px rgba(155,92,255,.18), 0 6px 14px rgba(255,92,168,.14); }
.logo-text { letter-spacing: .2px; }
.menu-toggle { display: none; background: transparent; border: 1px solid rgba(0,0,0,.12); border-radius: 10px; padding: 8px 12px; }
.menu-toggle:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.menu-icon { display: inline-block; width: 20px; height: 2px; background: var(--text); position: relative; }
.menu-icon::before, .menu-icon::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: var(--text); transition: transform .2s ease, opacity .2s ease; }
.menu-icon::before { top: -6px; }
.menu-icon::after { top: 6px; }
.nav a { color: var(--text); text-decoration: none; margin-left: 18px; opacity: .9; }
.nav a:hover { opacity: 1; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 18px; border-radius: 12px; text-decoration: none; font-weight: 600; transition: transform .06s ease, box-shadow .2s ease, background .2s ease; }
.btn:active { transform: translateY(1px); }
.btn-primary { color: #0d1b1e; background: linear-gradient(135deg, var(--primary-2), var(--primary)); box-shadow: 0 10px 22px rgba(0,191,166,.18), 0 6px 14px rgba(255,209,102,.24); }
.btn-primary:hover { filter: brightness(1.05); transform: translateY(-1px); }
.btn-secondary { color: var(--text); background: transparent; border: 1px solid rgba(0,0,0,.12); }
.btn-secondary:hover { background: rgba(0,0,0,.04); }
.btn-ghost { color: var(--text); background: transparent; border: 1px solid rgba(0,0,0,.10); padding: 8px 14px; border-radius: 10px; }
.btn-ghost:hover { background: rgba(0,0,0,.04); }

/* Variantes “été” */
.btn-sand { color: #4a3b12; background: linear-gradient(135deg, #ffe08a, #ffd166); border: 1px solid rgba(204, 153, 0, .25); box-shadow: 0 10px 22px rgba(255,209,102,.3); }
.btn-ocean { color: #082e2c; background: linear-gradient(135deg, #7ae0d1, #00bfa6); border: 1px solid rgba(0, 115, 98, .2); box-shadow: 0 10px 22px rgba(0,191,166,.26); }
.btn-sand:hover, .btn-ocean:hover { filter: brightness(1.06); transform: translateY(-1px); }

.hero { padding: 80px 0 60px; text-align: center; }
.hero-inner { display: grid; gap: 22px; justify-items: center; }
.hero h1 { font-size: clamp(28px, 5vw, 48px); line-height: 1.15; margin: 0; }
.lead { font-size: clamp(16px, 2.2vw, 20px); color: var(--muted); margin: 0; }
.cta-group { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.note { color: var(--muted); font-size: 14px; }

.steps { padding: 60px 0; }
.steps h2 { font-size: 28px; margin-top: 0; margin-bottom: 24px; text-align: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--panel); border: 1px solid rgba(0,0,0,.06); border-radius: 16px; padding: 20px; box-shadow: var(--shadow); }
.card h3 { margin-top: 10px; margin-bottom: 8px; }
.steps .card .step-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.steps .card .step-number { display: inline-flex; flex: 0 0 auto; }
.steps .card h3 { margin: 0; }
.steps .grid-3 { gap: 12px; }
.steps .card { padding: 16px; }
.steps .card h3 { margin: 0; }
.steps .card p { margin-top: 6px; display: flex; align-items: center; justify-content: center; text-align: center; min-height: 80px; }
.card p { margin: 0; color: var(--muted); }
.step-number { width: 40px; height: 40px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #ffffff; box-shadow: 0 8px 18px rgba(155,92,255,.25), 0 6px 14px rgba(255,92,168,.20); }

/* (Section Impact supprimée) */

.signup { padding: 60px 0 80px; }
.signup h2 { text-align: center; margin-top: 0; margin-bottom: 12px; }
.signup p { text-align: center; margin-top: 0; }
.signup-form { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 14px; }
.signup-form input[type="email"] { background: var(--panel); border: 1px solid rgba(0,0,0,.12); color: var(--text); padding: 14px 16px; border-radius: 12px; min-width: min(100%, 340px); }
.privacy { color: var(--muted); font-size: 13px; text-align: center; margin-top: 10px; }
.signup-cta { display: flex; justify-content: center; margin-top: 14px; }

/* Instagram feed */
.ig-feed { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.ig-card { position: relative; overflow: hidden; border-radius: 12px; border: 1px solid rgba(0,0,0,.06); background: var(--panel); box-shadow: var(--shadow); }
.ig-card img { width: 100%; height: 100%; object-fit: cover; display: block; aspect-ratio: 1/1; }
.ig-card .ig-cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 8px 10px; background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,.5) 100%); color: #fff; font-size: 12px; max-height: 60%; overflow: hidden; }
.ig-placeholder { padding: 20px; text-align: center; color: var(--muted); border: 1px dashed rgba(0,0,0,.2); border-radius: 12px; }
.ig-embed { max-width: 980px; margin: 0 auto; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); }

.site-footer { border-top: 1px solid rgba(0,0,0,.08); background: rgba(255,255,255,.8); }
.footer-inner { display: grid; grid-template-columns: 1fr auto 1fr; gap: 10px; align-items: center; padding: 18px 0; }
.footer-inner .links { display: flex; gap: 16px; justify-content: center; }
.footer-inner a { color: var(--muted); text-decoration: none; }
.footer-inner a:hover { color: var(--text); }
.footer-inner .brand { display: inline-flex; align-items: center; gap: 10px; justify-self: start; }
.footer-inner .logo-mark { width: 22px; height: 22px; border-radius: 6px; }
.footer-inner .logo-text { font-weight: 700; font-size: 14px; }
.footer-inner .copyright { justify-self: end; color: var(--muted); font-size: 12px; }

.visually-hidden { position: absolute; inline-size: 1px; block-size: 1px; clip-path: inset(50%); overflow: hidden; white-space: nowrap; }

@media (max-width: 860px) {
  body { background-size: 220px, 220px, 260px, cover, 420px, auto, auto, auto; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav { position: absolute; right: 4%; top: 58px; background: rgba(255,255,255,.98); border: 1px solid rgba(0,0,0,.08); border-radius: 12px; padding: 10px; display: none; flex-direction: column; gap: 8px; box-shadow: var(--shadow); }
  .nav a { margin: 0; padding: 10px 12px; border-radius: 8px; }
  .nav a:hover { background: rgba(0,0,0,.04); }
  .nav.open { display: flex; }
  .menu-toggle[aria-expanded="true"] .menu-icon { background: transparent; }
  .menu-toggle[aria-expanded="true"] .menu-icon::before { transform: translateY(6px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-icon::after { transform: translateY(-6px) rotate(-45deg); }
  .grid-3 { grid-template-columns: 1fr; }
  .ig-feed { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-inner .brand, .footer-inner .copyright { justify-self: center; }
  .steps .card p { min-height: 64px; }
}