/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== COLOR VARIABLES ===== */
/* Palette professionnelle Eurêka Global Sourcing - VISU */
:root {
    --primary-blue: #1a365d;        /* Bleu Marine - Professionnalisme */
    --primary-blue-dark: #14284a;   /* Bleu Marine plus foncé */
    --primary-blue-light: #2c5282;  /* Bleu Clair - Innovation */
    --accent-orange: #dd6b20;       /* Orange Vif - Energie, action */
    --accent-orange-dark: #c05621;  /* Orange foncé */
    --accent-orange-light: #ed8936; /* Orange clair */
    --accent-gold: #d69e2e;         /* Or - Qualité, prestige */
    --neutral-dark: #2d3748;        /* Gris Foncé - Texte */
    --neutral-gray: #718096;        /* Gris Moyen - Bordures */
    --neutral-light: #edf2f7;       /* Gris Clair - Fonds */
    --neutral-white: #ffffff;       /* Blanc */
    --success: #38a169;             /* Vert succès */
    --warning: #d69e2e;             /* Avertissement (or) */
    --danger: #e53e3e;              /* Rouge danger */
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: 1rem;
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

.section-subtitle {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    color: var(--neutral-gray);
    font-size: 1.125rem;
}

.text-center {
    text-align: center;
}

.highlight {
    color: var(--accent-orange);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--neutral-white);
}

.btn-primary:hover {
    background-color: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(30, 58, 138, 0.2);
}

.btn-secondary {
    background-color: var(--accent-orange);
    color: var(--neutral-white);
}

.btn-secondary:hover {
    background-color: var(--accent-orange-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(249, 115, 22, 0.2);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-outline:hover {
    background-color: var(--primary-blue);
    color: var(--neutral-white);
}

.btn-nav {
    padding: 10px 24px;
    background-color: var(--accent-orange);
    color: white;
    border-radius: 4px;
}

.btn-large {
    padding: 16px 36px;
    font-size: 1.125rem;
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--neutral-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--primary-blue);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 2rem;
    margin-right: 10px;
}

.logo-text strong {
    color: var(--accent-orange);
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-menu li {
    margin-left: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--neutral-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 5px 0;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-blue);
}

.nav-menu a.active {
    color: var(--primary-blue);
    font-weight: 600;
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-blue);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-blue);
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.hero-content {
    flex: 1;
    min-width: 300px;
    padding-right: 40px;
}

.hero-title {
    font-size: 3.2rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--neutral-gray);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    max-width: 600px;
    gap: 20px;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    min-width: 120px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
}

.stat-label {
    color: var(--neutral-gray);
    font-size: 0.9rem;
    font-weight: 500;
}

.hero-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
}

/* ===== VALUE PROPOSITION ===== */
.value-proposition {
    padding: 100px 0;
    background-color: var(--neutral-white);
}

.value-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.value-card {
    background-color: var(--neutral-white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.value-icon {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.value-card h3 {
    color: var(--primary-blue);
    margin-bottom: 15px;
}

/* ===== SERVICES PREVIEW ===== */
.services-preview {
    padding: 100px 0;
    background-color: var(--neutral-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.service-card {
    background-color: var(--neutral-white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.service-card:hover {
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--accent-orange);
    margin-bottom: 20px;
}

.service-card h3 {
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    margin-top: 20px;
}

.service-link i {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.service-link:hover i {
    transform: translateX(5px);
}

/* ===== CTA SECTION ===== */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--neutral-white);
    text-align: center;
}

.cta h2 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
}

.cta p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 3rem;
    opacity: 0.9;
}

.cta .btn-primary {
    background-color: var(--accent-orange);
    border-color: var(--accent-orange);
}

.cta .btn-primary:hover {
    background-color: var(--accent-orange-dark);
    border-color: var(--accent-orange-dark);
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--neutral-dark);
    color: var(--neutral-light);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-col h3, .footer-col h4 {
    color: var(--neutral-white);
    margin-bottom: 1.5rem;
}

.footer-col h3 {
    font-size: 1.5rem;
}

.footer-col h4 {
    font-size: 1.2rem;
}

.footer-col p {
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: var(--neutral-light);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-col ul li a:hover {
    opacity: 1;
}

.contact-info li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-info i {
    margin-right: 10px;
    color: var(--accent-orange);
    width: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--neutral-white);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--accent-orange);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-bottom p {
    margin-bottom: 0;
    opacity: 0.7;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: var(--neutral-light);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-bottom a:hover {
    opacity: 1;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 992px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title { font-size: 2.5rem; }
    .hero .container { flex-direction: column; }
    .hero-content { padding-right: 0; margin-bottom: 50px; text-align: center; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    
    .cta h2 { font-size: 2.2rem; }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background-color: var(--neutral-white);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        padding: 30px;
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 0 0 20px 0;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1.1rem; }
    
    .stat-number { font-size: 2rem; }
    
    .cta h2 { font-size: 1.8rem; }
}

/* ===== EXPERTISE PAGE STYLES ===== */
.methodology {
    padding: 80px 0;
    background-color: var(--neutral-light);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 50px auto 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-blue-light);
    border-radius: 2px;
}

.timeline-step {
    position: relative;
    margin-bottom: 40px;
    padding-left: 80px;
}

.step-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    color: var(--neutral-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
    z-index: 1;
}

.step-content {
    background: var(--neutral-white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.step-content h3 {
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.geography {
    padding: 80px 0;
    background-color: var(--neutral-white);
}

.regions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.region-card {
    background: var(--neutral-light);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.region-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.region-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.region-icon i {
    font-size: 2rem;
    color: var(--neutral-white);
}

.region-card h3 {
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.sectors {
    padding: 80px 0;
    background-color: var(--neutral-light);
}

.sectors-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 50px;
}

.sector-item {
    background: var(--neutral-white);
    padding: 20px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: transform 0.3s;
}

.sector-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.sector-item i {
    color: var(--accent-orange);
    font-size: 1.5rem;
    width: 30px;
}

.sector-item span {
    font-weight: 500;
    color: var(--neutral-dark);
}

/* Responsive pour expertise */
@media (max-width: 768px) {
    .timeline::before {
        left: 25px;
    }
    
    .timeline-step {
        padding-left: 70px;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .regions-grid {
        grid-template-columns: 1fr;
    }
    
    .sectors-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .sectors-list {
        grid-template-columns: 1fr;
    }
}

/* ===== CONTACT PAGE STYLES ===== */
.contact-section {
    padding: 80px 0;
    background-color: var(--neutral-light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    margin-top: 30px;
}

.contact-form-container,
.contact-info-container {
    background: var(--neutral-white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--neutral-dark);
}

.form-group label::after {
    content: '*';
    color: var(--danger);
    margin-left: 4px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--neutral-gray);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group.checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.form-group.checkbox input {
    margin-top: 5px;
}

.form-group.checkbox label::after {
    content: '';
}

.form-note {
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--neutral-gray);
    text-align: center;
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--neutral-light);
}

.contact-method:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
    color: var(--neutral-white);
}

.contact-detail h3 {
    color: var(--primary-blue);
    margin-bottom: 5px;
    font-size: 1.2rem;
}

.contact-detail p {
    margin-bottom: 5px;
    color: var(--neutral-dark);
}

.contact-detail small {
    color: var(--neutral-gray);
    font-size: 0.9rem;
}

.cta-sidebar {
    background: var(--primary-blue-light);
    padding: 25px;
    border-radius: 10px;
    margin-top: 40px;
    color: var(--neutral-white);
}

.cta-sidebar h3 {
    color: var(--neutral-white);
    margin-bottom: 15px;
}

.cta-sidebar ul {
    list-style: none;
    margin-bottom: 20px;
}

.cta-sidebar li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.cta-sidebar li::before {
    content: '✓';
    font-weight: bold;
}

.btn-block {
    width: 100%;
    text-align: center;
}

.faq-section {
    padding: 80px 0;
    background-color: var(--neutral-white);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.faq-item {
    background: var(--neutral-light);
    padding: 30px;
    border-radius: 12px;
    transition: transform 0.3s;
}

.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.faq-item h3 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

/* Responsive contact */
@media (max-width: 992px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .form-row .form-group {
        margin-bottom: 20px;
    }
}

@media (max-width: 768px) {
    .contact-form-container,
    .contact-info-container {
        padding: 30px 20px;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .contact-method {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-icon {
        margin: 0 auto;
    }
}