/* Base reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    line-height: 1.6;
    color: #333;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Header sticky */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 10%;
    background-color: #0D2538;
    color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

header img {
    height: 60px;
}

header nav {
    display: flex;
    align-items: center;
}

header nav a {
    margin-left: 20px;
    color: #fff;
    font-weight: 500;
    transition: 0.3s;
}

header nav a:hover {
    color: #FF6B35;
}

/* Menu hamburger (caché par défaut sur desktop) */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 101;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Animation du hamburger en X */
.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero */
.hero {
    background: linear-gradient(rgba(255, 0, 0, 0.7), rgba(107, 255, 1, 0.7));
    color: #fff;
    text-align: center;
    padding: 160px 20px 100px;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 25px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
}

.btn {
    background-color: #FF6B35;
    color: #fff;
    padding: 18px 36px;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.btn:hover {
    background-color: #FF4A1F;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

/* Services */
.services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    padding: 60px 10%;
}

.service-card {
    background-color: #f9f9f9;
    padding: 30px 20px;
    border-radius: 10px;
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.service-card h3 {
    margin-bottom: 15px;
    color: #0D2538;
}

/* About */
.about {
    padding: 60px 10%;
    background-color: #f4f4f4;
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    transition: 0.6s;
}

.about.visible {
    opacity: 1;
    transform: translateY(0);
}

.about h2 {
    margin-bottom: 20px;
}

.about p {
    max-width: 700px;
    margin: 0 auto;
}

/* Footer */
footer {
    background-color: #0D2538;
    color: #fff;
    text-align: center;
    padding: 40px 20px;
}

footer a {
    color: #FF6B35;
    margin: 0 10px;
}

/* Formulaire popup */
.form-popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.form-container {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    position: relative;
    animation: fadeIn 0.3s ease-in-out;
}

.form-container h2 {
    margin-bottom: 25px;
    color: #0D2538;
    text-align: center;
}

.form-container label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #333;
}

.form-container input,
.form-container textarea {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    border-radius: 6px;
    border: 1px solid #ccc;
    font-size: 1rem;
    transition: border 0.3s, box-shadow 0.3s;
}

.form-container input:focus,
.form-container textarea:focus {
    border-color: #FF6B35;
    box-shadow: 0 0 5px rgba(255,107,53,0.5);
    outline: none;
}

.form-container .btn {
    width: 100%;
    margin-bottom: 10px;
    font-size: 1rem;
}

.form-container .cancel-btn {
    background-color: #ccc;
    color: #333;
    width: 100%;
}

.form-container .cancel-btn:hover {
    background-color: #b3b3b3;
}

/* Animation fadeIn */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media(max-width:768px){
    header {
        padding: 15px 5%;
    }

    header img {
        height: 45px;
    }

    /* Afficher le menu hamburger */
    .menu-toggle {
        display: flex;
    }

    /* Cacher le menu navigation par défaut */
    header nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: #0D2538;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right 0.3s ease;
        box-shadow: -2px 0 10px rgba(0,0,0,0.3);
    }

    /* Afficher le menu quand actif */
    header nav.active {
        right: 0;
    }

    header nav a {
        margin: 20px 0;
        font-size: 1.3rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .services {
        padding: 40px 5%;
    }

    .about {
        padding: 40px 5%;
    }
}

@media(max-width:480px) {
    .form-container {
        padding: 30px 20px;
    }

    .form-container input,
    .form-container textarea {
        padding: 10px 12px;
    }

    header nav {
        width: 85%;
    }
}