:root {
    /* Color Palette - Premium SaaS (Stripe/Notion inspired) */
    --bg-main: #ffffff;
    --bg-secondary: #f7f9fc;
    --bg-dark: #0a0e17;
    --primary: #635bff; /* Stripe Blurple */
    --primary-hover: #4b44d3;
    --secondary: #00d4ff;
    --text-dark: #0a2540;
    --text-main: #425466;
    --text-muted: #8898aa;
    --border-color: #e6ebf1;
    --success: #24b47e;
    --whatsapp: #25D366;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Layout */
    --container-width: 1140px;
    --radius-lg: 16px;
    --radius-md: 8px;
    --radius-sm: 4px;
    --transition: 0.3s ease;
    --shadow-sm: 0 2px 5px rgba(0,0,0,0.05);
    --shadow-md: 0 13px 27px -5px rgba(50,50,93,0.25), 0 8px 16px -8px rgba(0,0,0,0.3);
    --shadow-lg: 0 30px 60px -12px rgba(50,50,93,0.25), 0 18px 36px -18px rgba(0,0,0,0.3);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 100px 0;
}

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

h1, h2, h3, h4, h5, h6 {
    color: var(--text-dark);
    font-weight: 700;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    gap: 8px;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
    box-shadow: 0 4px 6px rgba(50,50,93,0.11), 0 1px 3px rgba(0,0,0,0.08);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 7px 14px rgba(50,50,93,0.1), 0 3px 6px rgba(0,0,0,0.08);
}

.btn-secondary {
    background-color: #fff;
    color: var(--text-dark);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.btn-whatsapp {
    background-color: var(--whatsapp);
    color: #fff;
    box-shadow: 0 4px 6px rgba(37,211,102,0.3);
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    transform: translateY(-1px);
    box-shadow: 0 7px 14px rgba(37,211,102,0.4);
}

/* Animations (Scroll) */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}



/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

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

.nav-links .btn-primary {
    color: #fff;
}

.burger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.burger span {
    width: 25px;
    height: 2px;
    background-color: var(--text-dark);
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 80px 0 100px;
    background: radial-gradient(circle at top right, rgba(99,91,255,0.05), transparent 40%),
                radial-gradient(circle at bottom left, rgba(0,212,255,0.05), transparent 40%);
    position: relative;
    overflow: hidden;
}

.hero__grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 50px;
    align-items: center;
}

.pill {
    display: inline-block;
    background: rgba(99, 91, 255, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 20px;
    border: 1px solid rgba(99, 91, 255, 0.2);
}

.hero h1 {
    font-size: 3.5rem;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.hero p.lead {
    font-size: 1.15rem;
    color: var(--text-main);
    margin-bottom: 40px;
    font-weight: 400;
}

.hero__cta {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
}

.hero__proof {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.proof {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.proof span {
    font-size: 1.2rem;
}

.proof div strong {
    display: block;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.proof div small {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.hero__panel {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    padding: 30px;
    position: relative;
}

.panel__top {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.panel__top h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.panel__top .tag {
    font-size: 0.8rem;
    background: var(--bg-secondary);
    color: var(--text-muted);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.checks {
    list-style: none;
    margin-bottom: 30px;
}

.checks li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 12px;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 500;
}

.checks li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

.panel__cta {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.panel__cta .btn {
    width: 100%;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    letter-spacing: -1px;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-muted);
}

/* Modules (Tabs) */
.modules-section {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.tabs-container {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.tabs-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.tab-btn {
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-muted);
    padding: 10px 20px;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-dark);
}

.tab-btn.active {
    color: var(--primary);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -11px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary);
    border-radius: 3px 3px 0 0;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.module-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.module-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.module-info p {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.feature-list {
    list-style: none;
    margin-bottom: 30px;
}

.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.feature-list li::before {
    content: "•";
    color: var(--primary);
    font-size: 1.5rem;
    line-height: 1;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.kpi-card {
    background: #fff;
    padding: 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    text-align: center;
}

.kpi-val {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 5px;
}

.kpi-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

.module-image {
    background: #fff;
    height: 400px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--border-color);
    font-size: 4rem;
    background-image: radial-gradient(#e6ebf1 1px, transparent 1px);
    background-size: 20px 20px;
}

/* Secteurs (Badges) */
.secteurs-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.badge {
    padding: 12px 24px;
    background-color: var(--bg-secondary);
    color: var(--text-dark);
    font-weight: 600;
    border-radius: 50px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.badge:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
    border-color: var(--primary);
    color: var(--primary);
}

/* Services */
.services-section {
    background-color: var(--bg-secondary);
}

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

.service-card {
    background-color: #fff;
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: inline-block;
    padding: 15px;
    background: rgba(99, 91, 255, 0.1);
    border-radius: var(--radius-md);
}

.service-card h3 {
    color: var(--text-dark);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.service-card p {
    color: var(--text-main);
}

/* FAQ (Accordion) */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 15px;
}

.accordion-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    font-family: inherit;
    text-align: left;
}

.accordion-icon {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
    color: var(--primary);
}

.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content {
    padding-bottom: 20px;
    color: var(--text-main);
}

/* Contact */
.contact-section {
    background-color: var(--bg-main);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.contact-info {
    background: var(--bg-dark);
    color: #fff;
    padding: 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info h3 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: 20px;
}

.contact-info p {
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
}

.form-container {
    padding: 50px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-dark);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background: #fff;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 91, 255, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-msg {
    display: none;
    padding: 15px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-weight: 500;
}

.form-msg.success {
    display: block;
    background-color: rgba(36, 180, 126, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

.form-msg.error {
    display: block;
    background-color: rgba(224, 36, 36, 0.1);
    color: #e02424;
    border: 1px solid #e02424;
}

/* Footer */
footer {
    background-color: var(--bg-secondary);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-logo {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-dark);
}

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

.footer-links a {
    color: var(--text-main);
    text-decoration: none;
}

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

.footer-copy {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 20px;
    text-align: center;
}

/* Floating WhatsApp */
.floating-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: var(--whatsapp);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 35px;
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: var(--transition);
    text-decoration: none;
}

.floating-whatsapp:hover {
    transform: scale(1.1);
    background-color: #128C7E;
}

/* Responsive */
@media (max-width: 992px) {
    .hero__grid {
        grid-template-columns: 1fr;
    }
    .module-grid, .contact-wrapper {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 3rem;
    }
    .topbar__meta {
        flex-wrap: wrap;
        gap: 10px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-sm);
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .burger {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info, .form-container {
        padding: 30px;
    }
}