body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    color: white;

    background-image: 
        linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)),
        url("PanaElec.jpg");
    background-size: cover;
    background-position: center;
}

/* NAVBAR PREMIUM */
nav {
    display: flex;
    justify-content: center;
    gap: 30px;
    background: rgba(0,0,0,0.8);
    padding: 15px;
    position: sticky;
    top: 0;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}

nav a:hover {
    color: #facc15;
}

/* HEADER */
header {
    padding: 80px 20px;
}

header img {
    width: 90px;
}

header h1 {
    font-size: 48px;
    margin: 10px 0;
}

header h2 {
    font-weight: 300;
}

/* SECTIONS STYLE CARTES */
.section {
    max-width: 900px;
    margin: 40px auto;
    background: rgba(0,0,0,0.6);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* LISTE */
ul {
    list-style: none;
    padding: 0;
}

ul li {
    margin: 10px 0;
}

/* BOUTONS */
.btn {
    display: inline-block;
    margin: 10px;
    padding: 12px 20px;
    background: #facc15;
    color: black;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: 0.3s;
}

.btn:hover {
    background: #eab308;
}