:root {
  --brand: #0e7afe;
  --brand-dark: #0a5cc1;
  --accent: #10b981;
  --text: #0f172a;
  --muted: #475569;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --border: #e2e8f0;
  --shadow: 0 10px 25px rgba(2, 6, 23, 0.07);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 40%, #f7fafc 100%);
  line-height: 1.6;
}

img { max-width: 100%; height: auto; }

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.8);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.brand img { width: 40px; height: 40px; display: block; }
.brand strong { font-size: 18px; }

.nav-links {
  display: flex;
  gap: 14px;
  align-items: center;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 8px;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}

.nav-links a:hover { color: var(--text); background: var(--bg-alt); }
.nav-links a.active { color: var(--bg); background: var(--brand); }

.cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--brand), #5aa7ff);
  color: #fff !important; /* garder le texte blanc, même dans la nav */
  border-radius: 10px;
  text-decoration: none;
  box-shadow: var(--shadow);
  transform: translateY(0);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  cursor: pointer;
}

.cta:hover { background: linear-gradient(135deg, var(--brand-dark), #3f8cf0); transform: translateY(-1px); color: #fff !important; }

/* Forcer le même rendu en état actif/focus */
.cta:active,
.cta:focus,
.cta:focus-visible { background: linear-gradient(135deg, var(--brand-dark), #3f8cf0); color: #fff !important; outline: none; }

/* Empêcher les styles génériques de la nav d'écraser le bouton Appeler */
.nav-links a.cta,
.nav-links a.cta:hover,
.nav-links a.cta:active { background: linear-gradient(135deg, var(--brand), #5aa7ff); color: #fff !important; }

.hero {
  background: radial-gradient(1200px 600px at 10% -10%, rgba(14,122,254,0.15), transparent 60%), radial-gradient(1200px 600px at 90% 10%, rgba(16,185,129,0.12), transparent 60%);
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--border);
}

.hero h1 { font-size: 42px; line-height: 1.15; margin: 0 0 10px; color: inherit; }
.hero p { font-size: 18px; color: var(--muted); margin: 0 0 18px; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .mobile-menu { display: none; }
}

.card {
  padding: 18px;
  border: 1px solid rgba(14,122,254,.14);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(14,122,254,0.06) 0%, rgba(14,122,254,0.02) 100%);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease;
}

.card:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(2, 6, 23, 0.10); }
.card h3 { margin: 6px 0 8px; }
.muted { color: var(--muted); }

section { padding: 32px 0; }
section h2 { margin: 0 0 10px; font-size: 28px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .features { grid-template-columns: 1fr; } }

footer.site-footer {
  margin-top: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--muted);
}

.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr; } }

ul { padding-left: 18px; }
li { margin: 6px 0; }

.notice {
  background: #fff;
  border: 1px dashed var(--border);
  padding: 12px 14px;
  border-radius: 10px;
}

form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 640px) { form .row { grid-template-columns: 1fr; } }
label { display: block; font-weight: 600; margin: 10px 0 6px; }
input, textarea, select { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; font: inherit; }
textarea { min-height: 120px; }
button { font: inherit; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg); cursor: pointer; }
.btn.primary { background: var(--brand); color: #fff; border-color: transparent; }
.btn.primary:hover { background: var(--brand-dark); }

.nav-toggle { display: none; border: 1px solid var(--border); background: var(--bg); border-radius: 8px; padding: 6px 10px; margin-left: auto; }
.nav-toggle .icon-bars { display: block; }
.nav-toggle .hamburger { font-size: 20px; line-height: 1; }
.mobile-menu { display: none; flex-direction: column; gap: 8px; padding: 10px 16px 16px; background: #fff; border-bottom: 1px solid var(--border); }
.mobile-menu a { text-decoration: none; color: var(--muted); padding: 8px 10px; border-radius: 8px; }
.mobile-menu a.active { background: var(--brand); color: #fff; }
.show { display: flex !important; }

.pill { display: inline-block; padding: 4px 10px; border-radius: 999px; background: #eef2ff; color: #3730a3; font-size: 12px; }

.kbd { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: 12px; border: 1px solid var(--border); background: #fff; border-bottom-width: 3px; padding: 2px 6px; border-radius: 6px; }