@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
    
    /* Reset et base */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Inter', sans-serif;
    }
    
    html {
        scroll-behavior: smooth;
    }
    
    body {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        min-height: 100vh;
        position: relative;
        overflow-x: hidden;
    }
    
    body::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: 
            radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
            radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
            radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
        pointer-events: none;
        z-index: -1;
    }
    
    /* Utilitaires */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 2rem;
    }
    
    .text-center { text-align: center; }
    .text-left { text-align: left; }
    
    .flex { display: flex; }
    .grid { display: grid; }
    .hidden { display: none; }
    
    .items-center { align-items: center; }
    .justify-center { justify-content: center; }
    .justify-between { justify-content: space-between; }
    
    .w-full { width: 100%; }
    .h-full { height: 100%; }
    .min-h-screen { min-height: 100vh; }
    
    /* Espacement */
    .py-4 { padding: 1rem 0; }
    .py-8 { padding: 2rem 0; }
    .py-12 { padding: 3rem 0; }
    .py-16 { padding: 4rem 0; }
    .py-20 { padding: 5rem 0; }
    
    .px-4 { padding: 0 1rem; }
    .px-6 { padding: 0 1.5rem; }
    .px-8 { padding: 0 2rem; }
    
    .mb-4 { margin-bottom: 1rem; }
    .mb-6 { margin-bottom: 1.5rem; }
    .mb-8 { margin-bottom: 2rem; }
    .mb-12 { margin-bottom: 3rem; }
    .mb-16 { margin-bottom: 4rem; }
    
    .mt-8 { margin-top: 2rem; }
    .mt-12 { margin-top: 3rem; }
    
    .space-y-4 > * + * { margin-top: 1rem; }
    .space-y-6 > * + * { margin-top: 1.5rem; }
    .space-y-8 > * + * { margin-top: 2rem; }
    
    .gap-6 { gap: 1.5rem; }
    .gap-8 { gap: 2rem; }
    .gap-12 { gap: 3rem; }
    
    /* Texte */
    .text-sm { font-size: 0.875rem; }
    .text-base { font-size: 1rem; }
    .text-lg { font-size: 1.125rem; }
    .text-xl { font-size: 1.25rem; }
    .text-2xl { font-size: 1.5rem; }
    .text-3xl { font-size: 1.875rem; }
    .text-4xl { font-size: 2.25rem; }
    .text-5xl { font-size: 3rem; }
    .text-6xl { font-size: 3.75rem; }
    
    .font-light { font-weight: 300; }
    .font-normal { font-weight: 400; }
    .font-medium { font-weight: 500; }
    .font-semibold { font-weight: 600; }
    .font-bold { font-weight: 700; }
    .font-extrabold { font-weight: 800; }
    .font-black { font-weight: 900; }
    
    .leading-tight { line-height: 1.25; }
    .leading-relaxed { line-height: 1.625; }
    
    /* Couleurs */
    .text-white { color: white; }
    .text-gray-300 { color: #d1d5db; }
    .text-gray-400 { color: #9ca3af; }
    .text-gray-600 { color: #4b5563; }
    .text-gray-700 { color: #374151; }
    .text-gray-800 { color: #1f2937; }
    .text-gray-900 { color: #111827; }
    
    .text-gradient {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    
    .text-gradient-alt {
        background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    
    /* Effets visuels */
    .glass-card {
        background: linear-gradient(145deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
        backdrop-filter: blur(20px);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 1.5rem;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
        transition: all 0.3s ease;
        padding: 2rem;
    }
    
    .glass-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    }
    
    .hero-card {
        background: linear-gradient(145deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.1) 100%);
        backdrop-filter: blur(30px);
        border: 1px solid rgba(255, 255, 255, 0.3);
        border-radius: 2rem;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
        
    }
    
    /* Navigation */
    .navbar {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
    }
    
    .nav-link {
        color: white;
        text-decoration: none;
        padding: 0.5rem 1rem;
        border-radius: 0.5rem;
        transition: all 0.3s ease;
        font-weight: 500;
    }
    
    .nav-link:hover {
        background: rgba(255, 255, 255, 0.1);
        transform: translateY(-1px);
    }
    
    /* Boutons */
    .btn {
        padding: 0.75rem 2rem;
        border-radius: 0.75rem;
        font-weight: 600;
        text-decoration: none;
        display: inline-block;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        cursor: pointer;
        border: none;
        position: relative;
        overflow: hidden;
    }
    
    .btn-primary {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    }
    
    .btn-primary::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        transition: left 0.5s;
    }
    
    .btn-primary:hover::before {
        left: 100%;
    }
    
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(102, 126, 234, 0.6);
    }
    
    .btn-secondary {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
        color: white;
        border: 1px solid rgba(255, 255, 255, 0.3);
        backdrop-filter: blur(10px);
    }
    
    .btn-secondary:hover {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.2) 100%);
        transform: translateY(-1px);
    }
    
    .btn-large {
        padding: 1rem 3rem;
        font-size: 1.125rem;
    }
    
    /* Grilles */
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
    
    /* Sections */
    .section {
        padding: 5rem 0;
    }
    
    .hero {
        min-height: 100vh;
        display: flex;
        align-items: center;
        padding-top: 5rem;
    }
    
    /* Statistiques */
    .stat-card {
        text-align: center;
        padding: 2rem;
    }
    
    .stat-number {
        font-size: 3rem;
        font-weight: 900;
        background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
        display: block;
        margin-bottom: 0.5rem;
    }
    
    /* Fonctionnalités */
    .feature-icon {
        width: 4rem;
        height: 4rem;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border-radius: 1rem;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
        box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    }
    
    /* Témoignages */
    .testimonial {
        background: linear-gradient(145deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
        backdrop-filter: blur(20px);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 1.5rem;
        padding: 2rem;
        text-align: center;
        transition: all 0.3s ease;
    }
    
    .testimonial:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    }
    
    .testimonial-avatar {
        width: 4rem;
        height: 4rem;
        border-radius: 50%;
        background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        margin: 0 auto 1rem;
        color: white;
        font-weight: bold;
    }
    
    /* Footer */
    .footer {
        background: linear-gradient(135deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.1) 100%);
        backdrop-filter: blur(20px);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        color: white;
        padding: 3rem 0 2rem;
    }
    
    /* Animations */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    @keyframes fadeInLeft {
        from {
            opacity: 0;
            transform: translateX(-30px);
        }
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }
    
    @keyframes fadeInRight {
        from {
            opacity: 0;
            transform: translateX(30px);
        }
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }
    
    @keyframes float {
        0%, 100% {
            transform: translateY(0px);
        }
        50% {
            transform: translateY(-20px);
        }
    }
    
    .animate-fade-up {
        animation: fadeInUp 0.8s ease-out;
    }
    
    .animate-fade-left {
        animation: fadeInLeft 0.8s ease-out;
    }
    
    .animate-fade-right {
        animation: fadeInRight 0.8s ease-out;
    }
    
    .animate-float {
        animation: float 6s ease-in-out infinite;
    }
    
    /* Responsive */
    @media (max-width: 768px) {
        .container {
            padding: 0 1rem;
        }
        
        .text-6xl {
            font-size: 2.5rem;
        }
        
        .text-5xl {
            font-size: 2rem;
        }
        
        .text-4xl {
            font-size: 1.75rem;
        }
        
        .grid-2,
        .grid-3,
        .grid-4 {
            grid-template-columns: 1fr;
        }
        
        .hero {
            padding-top: 6rem;
            text-align: center;
        }
        
        .btn-large {
            padding: 0.875rem 2rem;
            font-size: 1rem;
        }
        
        .section {
            padding: 3rem 0;
        }
        
        .stat-number {
            font-size: 2rem;
        }
    }
    
    @media (max-width: 480px) {
        .text-6xl {
            font-size: 2rem;
        }
        
        .btn {
            padding: 0.75rem 1.5rem;
        }
        
        .feature-icon {
            width: 3rem;
            height: 3rem;
            font-size: 1.25rem;
        }
    }

/* Interface Showcase Styles */
.interface-showcase {
    position: relative;
    overflow: hidden;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.1) 100%);
    backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 2rem;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.interface-showcase::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(102, 126, 234, 0.1), transparent, rgba(118, 75, 162, 0.1), transparent);
    animation: rotate 20s linear infinite;
    z-index: -1;
}

.interface-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.1) 100%);
    border-radius: 1rem 1rem 0 0;
    margin: -2rem -2rem 2rem -2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.window-controls {
    display: flex;
    gap: 0.5rem;
}

.control-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    transition: all 0.3s ease;
    cursor: pointer;
}

.control-dot.red {
    background: linear-gradient(135deg, #ff5f57 0%, #ff3b30 100%);
    box-shadow: 0 2px 8px rgba(255, 95, 87, 0.3);
}

.control-dot.yellow {
    background: linear-gradient(135deg, #ffbd2e 0%, #ff9500 100%);
    box-shadow: 0 2px 8px rgba(255, 189, 46, 0.3);
}

.control-dot.green {
    background: linear-gradient(135deg, #28ca42 0%, #30d158 100%);
    box-shadow: 0 2px 8px rgba(40, 202, 66, 0.3);
}

.control-dot:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.window-title {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    font-weight: 500;
}

.interface-icon-container {
    position: relative;
    display: inline-block;
}

.interface-icon {
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 0 20px rgba(102, 126, 234, 0.5));
    animation: iconFloat 4s ease-in-out infinite;
}

.icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: glow 3s ease-in-out infinite alternate;
    z-index: 1;
}

.icon-particles {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200px;
    height: 200px;
    transform: translate(-50%, -50%);
    z-index: 0;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    animation: particleFloat 6s ease-in-out infinite;
}

.particle:nth-child(1) {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    top: 20%;
    right: 20%;
    animation-delay: 1.5s;
}

.particle:nth-child(3) {
    bottom: 20%;
    left: 20%;
    animation-delay: 3s;
}

.particle:nth-child(4) {
    bottom: 20%;
    right: 20%;
    animation-delay: 4.5s;
}

.typing-effect {
    overflow: hidden;
    border-right: 2px solid rgba(102, 126, 234, 0.8);
    white-space: nowrap;
    animation: typing 3s steps(18, end), blink-caret 0.75s step-end infinite;
}

.interface-features .feature-item {
    opacity: 0;
    transform: translateX(-20px);
    animation: slideInFeature 0.6s ease-out forwards;
    position: relative;
    overflow: hidden;
}

.feature-item[data-delay="0"] { animation-delay: 1s; }
.feature-item[data-delay="200"] { animation-delay: 1.2s; }
.feature-item[data-delay="400"] { animation-delay: 1.4s; }

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.6s ease;
}

.feature-item:hover::before {
    left: 100%;
}

.feature-indicator {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pulse-dot {
    animation: pulse 2s ease-in-out infinite;
}

.ripple-effect {
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    top: 50%;
    left: 50%;
    opacity: 0;
    animation: ripple 2s ease-out infinite;
}

.ripple-effect.green {
    border: 2px solid #10b981;
}

.ripple-effect.blue {
    border: 2px solid #3b82f6;
}

.ripple-effect.purple {
    border: 2px solid #8b5cf6;
}

.feature-badge {
    margin-left: auto;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 0.375rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.8) 0%, rgba(118, 75, 162, 0.8) 100%);
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    animation: badgePulse 3s ease-in-out infinite;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-top: 0.5rem;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    border-radius: 2px;
    position: relative;
    animation: progressFill 2s ease-out;
}

.progress-bar.green .progress-fill {
    background: linear-gradient(90deg, #10b981 0%, #34d399 100%);
}

.progress-bar.blue .progress-fill {
    background: linear-gradient(90deg, #3b82f6 0%, #60a5fa 100%);
}

.progress-bar.purple .progress-fill {
    background: linear-gradient(90deg, #8b5cf6 0%, #a78bfa 100%);
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: progressShine 2s ease-out infinite;
}

.interface-stats {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.1) 100%);
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.stat-item {
    text-align: center;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border-radius: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.2);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Animations */
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(2deg); }
    50% { transform: translateY(-5px) rotate(0deg); }
    75% { transform: translateY(-15px) rotate(-2deg); }
}

@keyframes glow {
    0% { 
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    100% { 
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes particleFloat {
    0%, 100% { 
        transform: translateY(0px);
        opacity: 0.3;
    }
    50% { 
        transform: translateY(-20px);
        opacity: 1;
    }
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: rgba(102, 126, 234, 0.8); }
}

@keyframes slideInFeature {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { 
        opacity: 1;
        transform: scale(1);
    }
    50% { 
        opacity: 0.7;
        transform: scale(1.1);
    }
}

@keyframes ripple {
    0% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(0);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(2);
    }
}

@keyframes badgePulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    }
    50% { 
        transform: scale(1.05);
        box-shadow: 0 4px 15px rgba(102, 126, 234, 0.5);
    }
}

@keyframes progressFill {
    from { width: 0%; }
    to { width: var(--progress-width, 100%); }
}

@keyframes progressShine {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Responsive pour la nouvelle interface */
@media (max-width: 768px) {
    .interface-header {
        padding: 0.75rem 1rem;
        margin: -2rem -1.5rem 1.5rem -1.5rem;
    }
    
    .window-title {
        font-size: 0.75rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .stat-value {
        font-size: 1.25rem;
    }
    
    .interface-icon {
        font-size: 3rem;
    }
    
    .icon-glow {
        width: 80px;
        height: 80px;
    }
    
    .icon-particles {
        width: 150px;
        height: 150px;
    }
}