:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --text-secondary: #64748b;
  --border: #e2e8f0;
  --accent: #0ea5e9;
  --accent-dark: #0284c7;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
}
header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.logo span { color: var(--accent); }
nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  margin-left: 24px;
}
nav a:hover { color: var(--text); }

.hero { text-align: center; padding: 96px 0 72px; }
.hero h1 {
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  max-width: 720px;
  margin: 0 auto 24px;
}
.hero h1 em { color: var(--accent); font-style: normal; }
.hero p {
  font-size: 19px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
}
.cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 16px;
  padding: 14px 32px;
  border-radius: 12px;
  text-decoration: none;
  transition: background 0.15s;
}
.cta:hover { background: var(--accent-dark); }
.cta-note { display: block; margin-top: 14px; font-size: 14px; color: var(--text-secondary); }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  padding: 24px 0 96px;
}
.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
}
.feature .icon { font-size: 28px; margin-bottom: 12px; }
.feature h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature p { font-size: 15px; color: var(--text-secondary); }

footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  font-size: 14px;
  color: var(--text-secondary);
}
footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}
footer a { color: var(--text-secondary); text-decoration: none; margin-right: 16px; }
footer a:hover { color: var(--text); }

/* Pages légales */
.legal { max-width: 760px; margin: 0 auto; padding: 56px 24px 96px; }
.legal h1 { font-size: 32px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 8px; }
.legal .updated { color: var(--text-secondary); font-size: 14px; margin-bottom: 40px; }
.legal h2 { font-size: 20px; font-weight: 700; margin: 36px 0 12px; }
.legal p, .legal li { color: #334155; font-size: 16px; margin-bottom: 12px; }
.legal ul { padding-left: 24px; margin-bottom: 16px; }
.legal a { color: var(--accent); }