:root {
    --primary-blue: #2563eb;
    --primary-blue-dark: #1d4ed8;
    --secondary-blue: #3b82f6;
    --light-blue: #dbeafe;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* Modern Header */
.modern-header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.modern-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo-modern {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.cta-button {
    background: var(--primary-blue);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    color: var(--white);
}

/* Hero Section */
.hero-modern {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    padding: 8rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.1"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="180" fill="url(%23a)"/><circle cx="800" cy="800" r="200" fill="url(%23a)"/><circle cx="400" cy="600" r="120" fill="url(%23a)"/></svg>') no-repeat center;
    background-size: cover;
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary-modern {
    background: var(--white);
    color: var(--primary-blue);
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary-modern:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    color: var(--primary-blue);
}

.btn-secondary-modern {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

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

/* Features Section */
.features-modern {
    padding: 5rem 0;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.1);
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    background: var(--light-blue);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-description {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Stats Section */
.stats-section {
    background: var(--primary-blue);
    color: var(--white);
    padding: 4rem 0;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    display: block;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    margin-top: 0.5rem;
}

/* Testimonials */
.testimonials-modern {
    padding: 5rem 0;
    background: var(--white);
}

.testimonial-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 1rem;
    margin: 1rem;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -1rem;
    left: 2rem;
    font-size: 4rem;
    color: var(--primary-blue);
    font-family: serif;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h5 {
    margin: 0;
    font-weight: 600;
    color: var(--text-dark);
}

.author-info p {
    margin: 0;
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* Pricing */
.pricing-modern {
    padding: 5rem 0;
    background: var(--bg-light);
}

.pricing-card {
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    height: 100%;
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-blue);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
}

.pricing-card.featured {
    border-color: var(--primary-blue);
    transform: scale(1.05);
}

.pricing-card.featured::before {
    content: 'POPULAIRE';
    position: absolute;
    top: -1rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-blue);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.pricing-period {
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.5rem 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 1.5rem;
}

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

.pricing-features li.unavailable {
    opacity: 0.5;
}

.pricing-features li.unavailable::before {
    content: '✗';
    color: var(--text-gray);
}

/* Contact Section */
.contact-modern {
    padding: 5rem 0;
    background: var(--white);
}

.contact-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
}

.contact-icon {
    width: 3rem;
    height: 3rem;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

/* Footer */
.footer-modern {
    background: var(--text-dark);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-section a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255,255,255,0.8);
}

/* Responsive */
@media (max-width: 768px) {
    .modern-nav {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .pricing-card.featured {
        transform: none;
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        padding: 1rem;
    }

    .nav-links.active {
        display: flex;
    }
}