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

:root {
    --fond-site: #0f172a;
    --fond-carte: #111827;
    --fond-input: #020617;

    --bleu: #2563eb;
    --bleu-clair: #38bdf8;
    --accent: #f59e0b;

    --texte: #f8fafc;
    --texte-secondaire: #cbd5e1;
    --bordure: #334155;
}

body {
    background: radial-gradient(circle at top, #1e293b 0%, var(--fond-site) 45%);
    color: var(--texte);
    font-family: Arial, Helvetica, sans-serif;
}

.topbar {
    width: 95%;
    margin: 20px auto;
    height: 55px;
    border: 1px solid var(--bordure);
    border-radius: 999px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 20px;
    background: rgba(17, 24, 39, 0.85);
}

.logo {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bleu), var(--bleu-clair));
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
}

.hero {
    width: 90%;
    max-width: 1200px;
    margin: 80px auto;
}

.location {
    color: var(--bleu-clair);
    margin-bottom: 20px;
    font-size: 14px;
}

.hero h1 {
    font-size: 70px;
    line-height: 0.95;
    max-width: 900px;
    margin-bottom: 25px;
    color: white;
}

.subtitle {
    color: var(--texte-secondaire);
    max-width: 700px;
    line-height: 1.7;
    margin-bottom: 35px;
}

.btn {
    display: inline-block;
    padding: 15px 25px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--bleu), var(--bleu-clair));
    color: white;
    text-decoration: none;
    font-weight: bold;
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.25);
    transition: 0.2s ease;
}

.btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 35px rgba(56, 189, 248, 0.35);
}

.services {
    width: 90%;
    max-width: 1400px;
    margin: 100px auto;
}

.services h2 {
    margin-bottom: 30px;
    font-size: 40px;
    color: white;
}

.services h2::after {
    content: "";
    display: block;
    width: 70px;
    height: 4px;
    background: linear-gradient(90deg, var(--bleu), var(--bleu-clair), var(--accent));
    margin-top: 12px;
    border-radius: 999px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.card {
    text-decoration: none;
    color: white;
    padding: 30px;
    border-radius: 25px;
    border: 1px solid var(--bordure);
    background: linear-gradient(135deg, var(--fond-carte), #0f172a);
    transition: 0.25s ease;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.card:hover {
    transform: translateY(-6px);
    border-color: var(--bleu-clair);
    box-shadow: 0 15px 35px rgba(56, 189, 248, 0.22);
}

.card h3 {
    margin-bottom: 10px;
    color: white;
}

.card p {
    color: var(--texte-secondaire);
    line-height: 1.6;
}

.service-page {
    width: 90%;
    max-width: 1200px;
    margin: 80px auto;
}

.slider {
    display: flex;
    overflow-x: auto;
    gap: 20px;
    margin: 40px 0;
    scroll-behavior: smooth;
}

.slider::-webkit-scrollbar {
    display: none;
}

.slider img {
    width: 700px;
    height: 450px;
    object-fit: cover;
    border-radius: 20px;
    flex-shrink: 0;
    border: 1px solid var(--bordure);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.back {
    color: var(--bleu-clair);
    text-decoration: none;
    font-weight: bold;
}

.back:hover {
    text-shadow:
        0 0 5px var(--bleu-clair),
        0 0 15px var(--bleu-clair);
}

@media(max-width: 900px) {
    .hero h1 {
        font-size: 45px;
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .slider img {
        width: 100%;
        height: 300px;
    }
}