@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    --success: #10b981;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --gray-light: #e2e8f0;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--dark);
    color: var(--white);
    overflow-x: hidden;
    position: relative;
}

/* Fond animé avec particules */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
    overflow: hidden;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(99, 102, 241, 0.5);
    border-radius: 50%;
    animation: float 15s infinite;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) translateX(100px);
        opacity: 0;
    }
}

/* Grille lumineuse animée */
.grid-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    opacity: 0.3;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

/* Container principal */
.container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
nav {
    padding: 30px 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(20px);
    background: rgba(15, 23, 42, 0.8);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-buttons {
    display: flex;
    gap: 20px;
}

.btn-nav {
    padding: 12px 28px;
    border: 2px solid var(--glass-border);
    background: var(--glass);
    backdrop-filter: blur(10px);
    color: var(--white);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-nav:hover::before {
    left: 100%;
}

.btn-nav:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: none;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

/* Hero Section */
.hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 100px 60px;
    text-align: center;
    position: relative;
}

.hero-content {
    max-width: 1200px;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 30px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
    }
}

h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 30px;
    background: linear-gradient(135deg, #ffffff 0%, var(--primary-light) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 12s ease-in-out infinite;
    background-size: 200% 200%;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.subtitle {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    color: var(--gray-light);
    margin-bottom: 50px;
    line-height: 1.6;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 80px;
}

.btn {
    padding: 18px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 16px;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-main {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.4);
}

.btn-main:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 30px 60px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 2px solid var(--glass-border);
    color: var(--white);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-5px);
}

/* Features Preview */
.features-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 80px auto;
    padding: 0 60px;
}

.feature-card {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--primary);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.3);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
    animation: floatIcon 3s ease-in-out infinite;
}

@keyframes floatIcon {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.feature-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--white);
}

.feature-desc {
    color: var(--gray-light);
    line-height: 1.6;
}

/* Stats Section */
.stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    margin: 80px 0;
    padding: 60px;
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 32px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

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

.stat-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 10px;
}

.stat-label {
    color: var(--gray-light);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Footer */
footer {
    padding: 60px;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    margin-top: 100px;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-text {
    color: var(--gray);
    margin-bottom: 30px;
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        padding: 20px 30px;
        flex-direction: column;
        gap: 20px;
    }

    .hero {
        padding: 60px 30px;
    }

    .features-preview {
        padding: 0 30px;
        grid-template-columns: 1fr;
    }

    .stats {
        gap: 40px;
        padding: 40px 30px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Effet de brillance animé */
.shimmer {
    position: relative;
    overflow: hidden;
}

.shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    animation: shimmer 8s ease-in-out infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    50% {
        left: 100%;
    }
    100% {
        left: 100%;
    }
}

/* Effet 3D au hover */
.perspective-3d {
    perspective: 1000px;
}

.card-3d {
    transform-style: preserve-3d;
    transition: transform 0.3s;
}

.card-3d:hover {
    transform: rotateY(5deg) rotateX(-5deg);
}