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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Barre de navigation */
header {
    background: #333;
    color: #fff;
    padding: 10px 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header .logo img {
    height: 50px;
}

header nav ul {
    list-style: none;
    display: flex;
}

header nav ul li {
    margin-left: 20px;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

header nav ul li a:hover {
    color: #f39c12;
}

header .iot-link .btn-iot {
    background: #f39c12;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
}

header .iot-link .btn-iot:hover {
    background: #e67e22;
}

/* Section Hero */
.hero {
    background: url('images/hero-bg.jpg') no-repeat center center/cover;
    color: #fff;
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
}

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

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.hero .btn {
    background: #f39c12;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
}

.hero .btn:hover {
    background: #e67e22;
}

/* Sections */
section {
    padding: 60px 0;
}

section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5rem;
}

.service-grid {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.service-item {
    background: #f4f4f4;
    padding: 20px;
    border-radius: 5px;
    text-align: center;
    flex: 1;
}

.service-item h3 {
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.about p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.contact form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact form input,
.contact form textarea {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.contact form button {
    background: #f39c12;
    color: #fff;
    padding: 10px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.contact form button:hover {
    background: #e67e22;
}

/* Pied de page */
footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
}

footer p {
    margin: 0;
}