/* ==========================================
   NDA - Next Dynamics Africa
   Premium & Ultra-Professional Stylesheet
========================================== */

/* Variables de Design */
:root {
    --primary: #0A2342;
    --primary-light: #12345F;
    --accent: #D4AF37;
    --accent-hover: #AA8417;
    --bg-light: #F8FAFC;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(10, 35, 66, 0.05), 0 4px 6px -4px rgba(10, 35, 66, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(10, 35, 66, 0.1), 0 8px 10px -6px rgba(10, 35, 66, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background: #ffffff;
    color: var(--text-main);
    overflow-x: hidden;
    line-height: 1.6;
}

/* ================= NAVBAR (Premium & Sticky) ================= */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

header.scrolled {
    background: rgba(10, 35, 66, 0.98);
    box-shadow: var(--shadow-md);
    padding: 5px 0;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 8%;
    background: rgba(10, 35, 66, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.15);
    transition: var(--transition);
}

header.scrolled .navbar {
    padding: 15px 8%;
    border-bottom: 1px solid rgba(212, 175, 55, 0.3);
}

.logo h2 {
    color: white;
    font-size: 32px;
    font-weight: 800;
    letter-spacing: 2px;
    line-height: 1;
}

.logo span {
    color: var(--accent);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 3px;
    display: block;
    margin-top: 4px;
    font-weight: 600;
}

.menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.menu a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

.menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition);
}

.menu a:hover {
    color: white;
}

.menu a:hover::after {
    width: 100%;
}

.btn-nav {
    text-decoration: none;
    background: var(--accent);
    color: white;
    padding: 12px 26px;
    border-radius: 50px;
    transition: var(--transition);
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-nav:hover {
    background: white;
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.4);
}

/* ================= HERO ================= */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 8%;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 35, 66, 0.9) 0%, rgba(6, 18, 36, 0.8) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    color: white;
    text-align: center;
    max-width: 900px;
    z-index: 2;
    padding-top: 100px;
}

.hero-content h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 25px;
    line-height: 1.25;
    letter-spacing: -1px;
}

.hero-content p {
    font-size: 20px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 45px;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn-primary {
    text-decoration: none;
    background: var(--accent);
    color: white;
    padding: 16px 38px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    background: var(--accent-hover);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

.btn-secondary {
    text-decoration: none;
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: white;
    padding: 14px 38px;
    border-radius: 50px;
    transition: var(--transition);
    font-weight: 600;
    font-size: 15px;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary);
    border-color: white;
    transform: translateY(-3px);
}

/* ================= ABOUT ================= */
.about {
    padding: 120px 8%;
    background: white;
}

.about-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.about-image {
    flex: 1;
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100px;
    height: 100px;
    border-top: 5px solid var(--accent);
    border-left: 5px solid var(--accent);
    border-radius: 8px 0 0 0;
}

.about-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.about-image img:hover {
    transform: scale(1.02);
}

.about-content {
    flex: 1;
}

.section-subtitle {
    color: var(--accent);
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 13px;
    display: block;
    margin-bottom: 10px;
}

.about-content h2 {
    font-size: 38px;
    color: var(--primary);
    margin-bottom: 25px;
    line-height: 1.3;
    font-weight: 700;
}

.about-content p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.about-info {
    display: flex;
    gap: 20px;
    margin: 35px 0;
}

.info-box {
    background: var(--bg-light);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    flex: 1;
    transition: var(--transition);
    border: 1px solid #E2E8F0;
}

.info-box:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    background: white;
    box-shadow: var(--shadow-md);
}

.info-box h3 {
    color: var(--primary);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 5px;
}

.info-box span {
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
}

/* ================= SERVICES ================= */
.services {
    padding: 120px 8%;
    background-color: var(--bg-light);
}

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

.services-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 70px auto;
}

.services-header h2 {
    font-size: 38px;
    color: var(--primary);
    margin: 15px 0 20px 0;
    line-height: 1.3;
}

.services-header p {
    color: var(--text-muted);
    font-size: 16px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: #ffffff;
    padding: 45px 35px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid #E2E8F0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(10, 35, 66, 0.04);
    color: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 25px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--primary);
    color: var(--accent);
    transform: rotateY(180deg);
}

.service-card h3 {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 15px;
    font-weight: 600;
}

.service-card p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 25px;
}

.service-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.service-link i {
    font-size: 12px;
    transition: var(--transition);
}

.service-card:hover .service-link {
    color: var(--accent);
}

.service-card:hover .service-link i {
    transform: translateX(6px);
}

/* ================= RESPONSIVE DESIGN (SMARTPHONES/TABLETTES) ================= */
@media (max-width: 991px) {
    .navbar { padding: 20px 5%; }
    .hero-content h1 { font-size: 42px; }
    .about-container { flex-direction: column; gap: 40px; }
    .about { padding: 80px 5%; }
    .services { padding: 80px 5%; }
}

@media (max-width: 768px) {
    .menu { display: none; } /* On le cachera en attendant le menu mobile */
    .hero-content h1 { font-size: 34px; }
    .hero-content p { font-size: 16px; }
    .hero-buttons { flex-direction: column; gap: 15px; }
    .btn-primary, .btn-secondary { width: 100%; text-align: center; }
    .about-info { flex-direction: column; }
    .services-grid { grid-template-columns: 1fr; }
}
/* ================= PORTFOLIO (RÉALISATIONS) ================= */
.portfolio {
    padding: 120px 8%;
    background-color: #ffffff;
}

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

.portfolio-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 70px auto;
}

.portfolio-header h2 {
    font-size: 38px;
    color: var(--primary);
    margin: 15px 0 20px 0;
    line-height: 1.3;
}

.portfolio-header p {
    color: var(--text-muted);
    font-size: 16px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 35px;
}

.portfolio-card {
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid #E2E8F0;
    transition: var(--transition);
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(212, 175, 55, 0.3);
}

.portfolio-img-box {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.portfolio-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-card:hover .portfolio-img-box img {
    transform: scale(1.08);
}

.portfolio-tag {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--primary);
    color: var(--accent);
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-sm);
}

.portfolio-info {
    padding: 30px;
}

.portfolio-info h3 {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 600;
}

.portfolio-info p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.portfolio-client {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--primary);
    font-weight: 500;
    border-top: 1px solid #E2E8F0;
    padding-top: 15px;
}

.portfolio-client i {
    color: var(--accent);
}

/* Ajustement responsive rapide pour les projets */
@media (max-width: 768px) {
    .portfolio { padding: 80px 5%; }
    .portfolio-grid { grid-template-columns: 1fr; }
}
/* ================= CONTACT & FOOTER ================= */
.contact {
    padding: 120px 8%;
    background: var(--bg-light);
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 80px;
    align-items: center;
}

.contact-info-box {
    flex: 1;
}

.contact-info-box h2 {
    font-size: 38px;
    color: var(--primary);
    margin: 15px 0 20px 0;
    line-height: 1.3;
}

.contact-info-box p {
    color: var(--text-muted);
    font-size: 16px;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: white;
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow-sm);
    border: 1px solid #E2E8F0;
}

.contact-item h4 {
    font-size: 16px;
    color: var(--primary);
    font-weight: 600;
}

.contact-item p {
    margin-bottom: 0;
    font-size: 14px;
    color: var(--text-muted);
}

.contact-form-box {
    flex: 1.2;
    background: white;
    padding: 45px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    border: 1px solid #E2E8F0;
}

.premium-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
}

.form-group input, .form-group textarea {
    padding: 14px;
    border: 1px solid #CBD5E1;
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.15);
}

.btn-submit {
    background: var(--primary);
    color: white;
    padding: 16px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.btn-submit:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

/* FOOTER */
footer {
    background: #061224;
    padding: 30px 8%;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: rgba(255,255,255,0.6);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
}

/* Responsive */
@media (max-width: 991px) {
    .contact-container { flex-direction: column; gap: 50px; }
    .contact-form-box { width: 100%; padding: 30px; }
}
@media (max-width: 768px) {
    .form-row { flex-direction: column; gap: 20px; }
    .footer-content { flex-direction: column; gap: 15px; text-align: center; }
}
/* --- Fenêtre Modale (Pop-up) --- */
.modal {
    display: none; 
    position: fixed;
    z-index: 9999; 
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 25, 47, 0.7); /* Fond sombre transparent */
    backdrop-filter: blur(8px); /* Effet flou moderne arrière-plan */
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: fadeInModal 0.4s ease;
}

@keyframes fadeInModal {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.close-modal {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    color: #0a192f;
    cursor: pointer;
    transition: color 0.3s;
}

.close-modal:hover {
    color: #dfb134; /* Votre jaune doré */
}

.modal-content h3 {
    color: #0a192f;
    font-size: 24px;
    margin-bottom: 8px;
}

.modal-content p {
    color: #606f7b;
    font-size: 14px;
    margin-bottom: 20px;
}

/* Formulaire de la modale */
.modal-form .form-group {
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
    text-align: left;
}

.modal-form label {
    font-size: 13px;
    font-weight: 600;
    color: #0a192f;
    margin-bottom: 5px;
}

.modal-form input, .modal-form select {
    padding: 12px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-size: 14px;
    background-color: #f8fafc;
}

.btn-submit-modal {
    width: 100%;
    padding: 12px;
    background-color: #dfb134;
    color: #0a192f;
    border: none;
    border-radius: 6px;
    font-weight: bold;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
    margin-top: 10px;
}

.btn-submit-modal:hover {
    background-color: #cda22b;
}
/* --- Sélecteur de Langue Personnalisé --- */
.custom-lang-selector {
    position: relative;
    display: inline-block;
    margin-left: 20px;
    vertical-align: middle;
}

.lang-btn {
    background: transparent;
    color: #fff; /* Couleur du texte dans la navbar */
    border: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: #ffffff;
    min-width: 90px;
    box-shadow: 0px 8px 16px rgba(0,0,0,0.15);
    border-radius: 4px;
    padding: 10px 0;
    list-style: none;
    z-index: 1000;
}

.lang-dropdown li a {
    color: #333333 !important;
    padding: 8px 16px;
    text-decoration: none;
    display: block;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.2s ease;
}

.lang-dropdown li a:hover {
    background-color: #f5f5f5;
}

/* Affichage au survol */
.custom-lang-selector:hover .lang-dropdown {
    display: block;
}

/* Cacher définitivement la bannière supérieure de Google Translate */
.skiptranslate, .goog-te-banner-frame {
    display: none !important;
}
body {
    top: 0px !important;
}