body {
    background-color: #0b0b0b;
    color: white;
    font-family: Arial, sans-serif;
    margin: 0;
}

/* container centrale */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* header */
header {
    position: relative;
}

.logo {
    height: 120px;
}

/* lingue */
.language-selector {
    position: absolute;
    top: 30px;
    right: 20px;
}

.flag {
    width: 28px;
    margin-left: 10px;
    cursor: pointer;
}

/* HERO */
.hero {
    padding-top: 10px;
    padding-bottom: 30px;
    text-align: center;
}

.hero-centered {
    text-align: center;
}

h1 {
    font-size: 36px;
}

.hero-subtitle {
    color: #4da3ff;
    margin-bottom: 20px;
}

.hero p {
    color: #cccccc;
    line-height: 1.6;
}

/* CONTACT */
.contact {
    padding-top: 20px;
    padding-bottom: 40px;
}

.contact-centered {
    text-align: center;
}

.contact-box {
    margin-top: 20px;
}

.contact-box form {
    display: flex;
    flex-direction: column;
}

.contact-box input,
.contact-box textarea {

    margin-bottom: 15px;
    padding: 12px;

    background-color: #111;
    border: 1px solid #333;

    color: white;
}

.contact-box textarea {
    height: 100px;
}

/* BUTTON */
.btn-primary {

    background-color: #0d47a1;

    color: white;

    padding: 15px;

    border: none;

    font-weight: bold;

    cursor: pointer;
}

.btn-primary:hover {
    background-color: #1565c0;
}
.hero-image {
    width: 100%;
    max-width: 900px;
    margin: 30px auto;
    display: block;
    border-radius: 8px;
    opacity: 0.95;
}