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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --dark: #1e293b;
    --gray: #64748b;
    --light: #f8fafc;
    --white: #ffffff;
    --border: #e2e8f0;
    --success: #10b981;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--dark);
    border: 2px solid var(--border);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-large {
    padding: 16px 36px;
    font-size: 16px;
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 16px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--dark);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    font-size: 28px;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

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

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

.mobile-menu-btn {
    display: none;
    font-size: 28px;
    cursor: pointer;
}

/* Hero */
.hero {
    padding: 80px 0 100px;
    background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
    text-align: center;
}

.badge {
    display: inline-block;
    background: white;
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid var(--border);
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-subtitle {
    font-size: 20px;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.stat strong {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
}

.stat span {
    color: var(--gray);
    font-size: 14px;
}

/* Section Headers */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray);
}

/* Features */
.features {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--gray);
}

/* Pricing */
.pricing {
    padding: 100px 0;
    background: var(--light);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    border: 2px solid var(--border);
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
    background: linear-gradient(135deg, #ffffff, #f5f3ff);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
}

.pricing-header h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.pricing-header p {
    color: var(--gray);
    margin-bottom: 24px;
}

.price {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border);
}

.currency {
    font-size: 24px;
    font-weight: 600;
    vertical-align: top;
}

.amount {
    font-size: 56px;
    font-weight: 800;
    color: var(--dark);
}

.period {
    color: var(--gray);
}

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

.pricing-features li {
    padding: 10px 0;
    color: var(--dark);
}

.pricing-features li.disabled {
    color: #cbd5e1;
    text-decoration: line-through;
}

.pricing-card .btn {
    width: 100%;
}

.pricing-note {
    text-align: center;
    margin-top: 40px;
    color: var(--gray);
}

/* Testimonials */
.testimonials {
    padding: 100px 0;
}

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

.testimonial-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
}

.stars {
    margin-bottom: 16px;
    font-size: 18px;
}

.testimonial-card p {
    color: var(--dark);
    font-size: 16px;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author strong {
    display: block;
    color: var(--dark);
}

.testimonial-author span {
    color: var(--gray);
    font-size: 14px;
}

/* FAQ */
.faq {
    padding: 100px 0;
    background: var(--light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    margin-bottom: 16px;
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.faq-question {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 17px;
}

.faq-icon {
    font-size: 24px;
    color: var(--primary);
    transition: transform 0.3s;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 20px;
}

.faq-answer p {
    color: var(--gray);
}

/* CTA */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    text-align: center;
    color: white;
}

.cta h2 {
    font-size: 42px;
    margin-bottom: 16px;
}

.cta p {
    font-size: 20px;
    margin-bottom: 32px;
    opacity: 0.95;
}

.cta .btn-primary {
    background: white;
    color: var(--primary);
}

.cta .btn-primary:hover {
    background: var(--light);
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer .logo {
    color: white;
    margin-bottom: 16px;
}

.footer-col p {
    color: #94a3b8;
}

.footer-col h4 {
    margin-bottom: 20px;
    font-size: 16px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col ul a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 30px;
    text-align: center;
    color: #94a3b8;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links, .navbar .btn {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-links.active {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border);
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-header h2 {
        font-size: 32px;
    }

    .hero-stats {
        gap: 30px;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .cta h2 {
        font-size: 32px;
    }
}