/* Hero avec gradient animé */
.hero-section {
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #4facfe);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    position: relative;
    overflow: hidden;
}

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

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(255,255,255,0.5);
    border-radius: 50%;
    animation: float-up 15s infinite;
}

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

/* Slider automatique de statistiques */
.stats-slider {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    margin-top: 50px;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: #ffc107;
    text-shadow: 0 0 20px rgba(255,193,7,0.5);
}

/* Section avec effet parallaxe */
.parallax-section {
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path fill="%23667eea" d="M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z" opacity=".25"/><path fill="%23667eea" d="M0,0V15.81C13,36.92,27.64,56.86,47.69,72.05,99.41,111.27,165,111,224.58,91.58c31.15-10.15,60.09-26.07,89.67-39.8,40.92-19,84.73-46,130.83-49.67,36.26-2.85,70.9,9.42,98.6,31.56,31.77,25.39,62.32,62,103.63,73,40.44,10.79,81.35-6.69,119.13-24.28s75.16-39,116.92-43.05c59.73-5.85,113.28,22.88,168.9,38.84,30.2,8.66,59,6.17,87.09-7.5,22.43-10.89,48-26.93,60.65-49.24V0Z" opacity=".5"/><path fill="%23667eea" d="M0,0V5.63C149.93,59,314.09,71.32,475.83,42.57c43-7.64,84.23-20.12,127.61-26.46,59-8.63,112.48,12.24,165.56,35.4C827.93,77.22,886,95.24,951.2,90c86.53-7,172.46-45.71,248.8-84.81V0Z"/></svg>');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 100px 0;
}

/* Cards 3D */
.card-3d {
    transform-style: preserve-3d;
    transition: all 0.5s ease;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.card-3d:hover {
    transform: rotateY(10deg) rotateX(10deg) scale(1.05);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

/* Testimonials style */
.testimonial-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    position: relative;
    margin: 20px;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 100px;
    color: #667eea;
    opacity: 0.2;
    font-family: Georgia, serif;
}

.testimonial-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 4px solid #667eea;
    margin: 0 auto 20px;
    display: block;
}

/* Timeline moderne */
.timeline {
    position: relative;
    padding: 50px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #667eea, #764ba2);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    width: 45%;
}

.timeline-item:nth-child(even) {
    margin-left: auto;
}

.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    background: #ffc107;
    border-radius: 50%;
    top: 50%;
    box-shadow: 0 0 20px rgba(255,193,7,0.5);
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -58px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -58px;
}

/* Counter animation */
.counter {
    font-size: 3.5rem;
    font-weight: bold;
    color: #667eea;
}

/* Glowing button */
.btn-glow {
    position: relative;
    background: linear-gradient(135deg, #ffc107, #ff6f00);
    border: none;
    color: white;
    font-weight: bold;
    padding: 15px 40px;
    font-size: 1.2rem;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(255,193,7,0.3);
    overflow: hidden;
}

.btn-glow::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* Pricing cards */
.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.price-tag {
    font-size: 4rem;
    font-weight: bold;
    color: #667eea;
}

/* Features grid */
.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 10px 30px rgba(102,126,234,0.3);
}

/* FAQ Accordion */
.faq-item {
    background: white;
    border-radius: 15px;
    margin-bottom: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 500px;
}

/* Responsive */
@media (max-width: 768px) {
    .timeline::before { left: 30px; }
    .timeline-item { width: 100%; padding-left: 80px; }
    .timeline-item:nth-child(even) { margin-left: 0; }
    .timeline-dot { left: 21px !important; }
    .stat-number { font-size: 2rem; }
    .price-tag { font-size: 2.5rem; }
}