/* --- 1. Variables et Réinitialisation --- */
:root {
    --primary: #0F172A;     /* Bleu ardoise très foncé (texte et titres) */
    --brand: #0EA5E9;       /* Bleu clair institutionnel (boutons secondaires) */
    --accent: #F97316;      /* Orange vif (boutons principaux - appels à l'action) */
    --bg-light: #F8FAFC;    /* Fond gris très clair alterné */
    --text: #475569;        /* Gris pour les paragraphes */
    --white: #FFFFFF;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
}

body {
    color: var(--primary);
    line-height: 1.6;
}

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

/* --- 2. Header & Navigation --- */
.main-header {
    background: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between; /* pour separer 2 elements */
    align-items: center;
    height: 70px;

    /* border:1px solid rgb(150,150,150); */
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px; /* l'espace entre les colonnes */


    text-decoration: none;
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--primary);
}

.main-nav ul {
    display: flex;
    align-items: center;
    gap: 30px;


    list-style: none;
}

.main-nav a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
}

.main-nav a:hover {
    color: var(--brand);
}

/* --- 3. Boutons --- */
.btn-cta, 
.btn-primary, 
.btn-secondary, 
.btn-submit {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    font-size:13px;
}

.btn-cta { background: var(--primary); color: var(--white) !important; padding: 8px 16px; }
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: #EA580C; transform: translateY(-2px); }
.btn-secondary { background: var(--bg-light); color: var(--primary); margin-left: 15px; border: 1px solid #CBD5E1; }
.btn-secondary:hover { background: #E2E8F0; }

/* --- 4. Section Hero --- */
.hero-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-content h1 {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text);
    margin-bottom: 30px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* --- 5. Section Solutions --- */
.solutions-section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
}

.solutions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.solution-card {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #E2E8F0;
}

.solution-card h3 { margin-bottom: 15px; font-size: 1.5rem; color: #0284C7; }
.solution-card ul { margin-top: 20px; padding-left: 20px; color: var(--text); }
.solution-card li { margin-bottom: 8px; }

/* --- 6. Section Contact & Formulaire --- */
.contact-section {
    padding: 80px 0;
    background: var(--primary);
    color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-text h2 { font-size: 2.2rem; margin-bottom: 20px; }
.contact-text p { color: #94A3B8; margin-bottom: 30px; }
.trust-list { list-style: none; }
.trust-list li { margin-bottom: 12px; font-weight: 500; color: #34D399; }

.form-container {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    color: var(--primary);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #CBD5E1;
    border-radius: 6px;
    font-size: 1rem;
}

.btn-submit {
    width: 100%;
    background: var(--accent);
    color: var(--white);
    font-size: 1.1rem;
    padding: 14px;
}

/* --- 7. Footer --- */
.main-footer {
    background: #0F172A;
    color: #94A3B8;
    padding: 60px 0 20px 0;
    border-top: 1px solid #334155;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo { color: var(--white); margin-bottom: 15px; }
.footer-grid h4 { color: var(--white); margin-bottom: 20px; font-size: 1.1rem; }
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 10px; }
.footer-grid a { color: #94A3B8; text-decoration: none; }
.footer-grid a:hover { color: var(--white); }

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #334155;
    font-size: 0.9rem;
}

/* --- 8. Responsive Design (Mobile) --- */
@media (max-width: 768px) {
    .hero-grid, .solutions-grid, .contact-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-content h1 { font-size: 2rem; }
    .btn-secondary { margin-left: 0; margin-top: 10px; display: block; text-align: center; }
    .btn-primary { display: block; text-align: center; }
}


.main_footer_indx {
        background: #0F172A;
        color: #94A3B8;
        padding: 20px 0;
        border-top: 1px solid #334155;
    }
.app_foot{
        max-width:1000px;
        margin:auto;
        display:none;
    }

    .footer_bottom{
        text-align:center;
        font-size:12px;
    }

    .footer_bottom h2{
        font-size:18px;
    }