:root {
  --blue:#003B73; /* Bleu Audi premium */
  --gold:#F4C431;
  --muted:#F5F7Fb;
}

/* Reset */
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:system-ui,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--muted);
  color:#0b1320;
}

/* Header */
header.site{
  background:var(--blue);
  padding:14px 0;
}
header.site .container{
  display:flex;
  align-items:center;
  gap:16px;
}
header.site img.logo{
  height:42px;
  width:auto;
  filter:drop-shadow(0 0 4px rgba(0,0,0,0.4));
}
header.site nav a{
  color:#fff;
  margin-left:14px;
  text-decoration:none;
  opacity:0.85;
  font-weight:500;
}
header.site nav a:hover{
  opacity:1;
  text-decoration:underline;
}

/* Brand text */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:20px;
  font-weight:700;
  color:#fff;
}
.brand strong{
  color:var(--gold);
}

/* Hero */
.hero {
  background: linear-gradient(180deg,#8A0000 0%, #C11111 50%, #8A0000 100%);
  color: #fff;
  text-align: center;
  padding: 60px 20px;
}

.hero h1 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 10px;
}

.hero p {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 25px;
}

.hero .cta {
  display: inline-block;
  background: #FFC400;
  color: #000;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0px 2px 8px rgba(0,0,0,0.15);
}

.hero .cta:hover {
  background: #ffdb4d;
}

/* Sections */
.section {
  padding:50px 20px;
}
.container{
  max-width:1100px;
  margin:0 auto;
}
h2{
  font-size:24px;
  margin-bottom:20px;
}

/* Cards Amazon */
.card{
  background:#fff;
  border-radius:12px;
  padding:18px;
  margin-bottom:22px;
  box-shadow:0 2px 8px rgba(0,0,0,0.06);
}
.card h3{
  margin-top:0;
  font-size:18px;
  font-weight:700;
}

/* Footer */
footer.site{
  background:var(--blue);
  color:#fff;
  padding:26px 20px;
  font-size:14px;
  text-align:center;
  opacity:0.9;
}

/* Floating button */
.contact-fab{
  position:fixed;
  bottom:24px;
  right:24px;
  background:var(--blue);
  color:#fff;
  text-decoration:none;
  border-radius:50px;
  padding:12px 18px;
  font-size:14px;
  font-weight:600;
  box-shadow:0 4px 8px rgba(0,0,0,0.2);
}
.contact-fab:hover{
  background:#002f5a;
}
header.site img.logo {
  height: 46px;
  filter: drop-shadow(0px 0px 5px rgba(0,0,0,0.7));
}
header.site img.logo {
  height: 50px;
  filter: drop-shadow(0 0 3px rgba(255,255,255,0.9));
}