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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f7f6; 
}

h1, h2, h3 {
    color: #1a5c88; 
    margin-top: 0;
}

a {
    text-decoration: none;
    color: red; 
    transition: color 0.3s ease;
}

a:hover {
    color: #0056b3; 
    text-decoration: underline;
}

.container {
   
    max-width: 1200px; 
    margin: 0 auto;
    padding: 0 20px;
}



.header-portfolio {
    background-color: darkblue; 
    color: white;
    padding: 10px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-principal {
    display: flex;
    justify-content: space-between;
    align-items: center;
}


.nav-principal .logo {
    font-size: 1.8em;
    font-weight: bold;
    color: #a7d9f7; 
}

.nav-principal ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.nav-principal ul li {
    margin-left: 25px;
}


.nav-principal ul li a {
    color: #a7d9f7; 
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-principal ul li a:hover {
    color: white; 
    text-decoration: none;
}



.bouton-cta {
    display: inline-block;
    background-color: #007bff;
    color: white;
    padding: 10px 20px; 
    border-radius: 5px;
    margin-top: 10px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}   

.bouton-cta:hover {
    background-color: #0056b3;
    text-decoration: none;
}



.section-accueil {
    background: linear-gradient(rgba(26, 92, 136, 0.8), rgba(26, 92, 136, 0.8)), url('images/background-reseau.jpg') no-repeat center center fixed; 
    background-size: cover;
    color: white;
    text-align: center;
    padding: 100px 20px; 
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contenu-accueil {
    max-width: 800px;
}

.section-accueil .titre-principal {
    font-size: 3.2em;
    margin-bottom: 20px;
    color: white;
}

.section-accueil .accroche {
    font-size: 1.3em;
    max-width: 700px;
    margin: 0 auto 30px auto;
    color: #e0e0e0;
}



section {
    padding: 80px 20px;
    text-align: center;
}

.titre-section {
    font-size: 2.5em;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 10px;
}

.titre-section::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: #007bff;
    border-radius: 2px;
}



.grille-competences {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.carte-competence {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: left; 
    border: 1px solid #ddd;
}

.carte-competence:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.carte-competence h3 {
    font-size: 1.5em;
    color: #1a5c88;
    margin-bottom: 15px;
}

.carte-competence p {
    font-size: 1em;
    color: #555;
}

.carte-competence img {
    width: 30px;
    margin-bottom: 10px;
}


.icon-reseau::before,
.icon-pc::before,
.icon-electricite::before,
.icon-photo::before {
    content: '⚙️'; 
    display: inline-block;
    margin-right: 10px;
    font-size: 1.2em;
    color: #007bff;
}


.section-projets {
    background-color: #eef3f6;
}

.grille-projets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.carte-projet {
    background-color: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    text-align: left;
    transition: transform 0.3s ease;
    border: 1px solid #ddd;
} 


.carte-projet:hover {
    transform: translateY(-5px);
}

.carte-projet h3 {
    font-size: 1.4em;
    margin-bottom: 10px;
}

.carte-projet p {
    font-size: 0.95em;
    color: #666;
    margin-bottom: 20px;
}

.lien-projet {
    display: inline-block;
    color: #1a5c88;
    font-weight: bold;
}

.lien-projet:hover {
    color: #007bff;
}


.experienc-pro{
    display: block;
    margin-bottom: 10px;
    font-size: 1.4em;
}



.section-contact p {
    font-size: 1.1em;
    margin-bottom: 40px;
}




@media (max-width: 992px) {
    .container {
        max-width: 90%; 
    }
}


@media (max-width: 768px) {
    .nav-principal {
        flex-direction: column;
        align-items: flex-start;
        padding-bottom: 10px;
    }
    
    .nav-principal ul {
        margin-top: 15px;
        width: 100%;
        justify-content: space-around;
    }
    .nav-principal ul li {
        margin: 0 10px;
    }
    
   

    .section-accueil {
        min-height: 400px;
        padding: 50px 20px;
    }

    .section-accueil .titre-principal {
        font-size: 2.5em;
    }
    .section-accueil .accroche {
        font-size: 1.1em;
    }
    .grille-competences,
    .grille-projets {
        grid-template-columns: 1fr; 
    }
    .carte-competence, .carte-projet {
        text-align: center; 
    }
    .carte-competence h3 i {
        display: block;
        margin-bottom: 10px;
    }
}


@media (max-width: 600px) {
    .container {
        width: 100%;
        padding: 10px;
    }
    
    .nav-principal ul {
        flex-direction: column; 
        align-items: center;
    }
    .nav-principal ul li {
        margin: 5px 0;
    }
}