/* styles.css — mise en forme simple et responsive */
:root {
  --maxw: 720px;
  --radius: 16px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.55;
  color: #222;
  background: #f7f7f7;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px;
}

.logo {
  width: 480px;
  height: auto;
  display: block;
  margin: 32px auto 0;
}

h1 {
  font-size: clamp(1.8rem, 2.2vw + 1rem, 2.4rem);
  margin: 12px 0 8px;
}

p { margin: 0 0 20px; }

.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(0,0,0,.08);
  background: white;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(0,0,0,.08);
  transition: transform .06s ease, box-shadow .2s ease;
}

.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,0,0,.12); }

.foot { text-align: center; color: #666; }

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.55;
  color: #222;
  background: url("assets/nacellegoldlift.jpg") no-repeat center center fixed;
  background-size: cover;
  position: relative;
}

/* Ajout d’un voile blanc transparent pour lisibilité */
body::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.7); /* blanc semi-transparent */
  z-index: -1;
}