html {
    scroll-behavior: smooth;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: #1a1a2e;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo img {
    height: 40px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: #666;
    text-decoration: none;
    font-weight: 500;
}

.nav-link:hover {
    color: #1a1a2e;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: #0066ff;
    color: #fff;
}

.btn-primary:hover {
    background: #0052cc;
}

.btn-secondary {
    background: #f5f5f5;
    color: #333;
}

.btn-secondary:hover {
    background: #e5e5e5;
}

.btn-outline {
    background: transparent;
    border: 2px solid #0066ff;
    color: #0066ff;
}

.btn-outline:hover {
    background: #0066ff;
    color: #fff;
}

.btn-upgrade {
    background: linear-gradient(135deg, #ff6b00 0%, #ff9500 100%);
    color: #fff;
    font-weight: 700;
    animation: pulse 2s infinite;
}

.btn-upgrade:hover {
    background: linear-gradient(135deg, #ff6b00 0%, #ff9500 100%);
    transform: scale(1.05);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 107, 0, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(255, 107, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 107, 0, 0); }
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

.hero {
    padding: 8rem 2rem 4rem;
    text-align: center;
    background: linear-gradient(135deg, #f8f9ff 0%, #fff 100%);
}

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

.hero h1 {
    font-size: 2.75rem;
    font-weight: 800;
    color: #1a1a2e;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.25rem;
    color: #666;
    margin-bottom: 2rem;
}

.hero-benefits {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero-benefits li {
    color: #0066ff;
    font-weight: 600;
}

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

.proof {
    padding: 4rem 2rem;
    text-align: center;
    background: #f8f9ff;
}

.proof h2 {
    font-size: 2rem;
    color: #1a1a2e;
    margin-bottom: 1rem;
}

.proof > p {
    font-size: 1.1rem;
    color: #666;
    max-width: 700px;
    margin: 0 auto 2rem;
}

.proof-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: #0066ff;
}

.stat-label {
    color: #666;
    font-size: 0.9rem;
}

.how-it-works {
    padding: 4rem 2rem;
    text-align: center;
}

.how-it-works h2 {
    font-size: 2rem;
    color: #1a1a2e;
    margin-bottom: 2.5rem;
}

.steps {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 250px;
    max-width: 300px;
    padding: 2rem;
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #0066ff;
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.step h3 {
    color: #1a1a2e;
    margin-bottom: 0.5rem;
}

.step p {
    color: #666;
}

.benefits {
    padding: 4rem 2rem;
    background: #f8f9ff;
    text-align: center;
}

.benefits h2 {
    font-size: 2rem;
    color: #1a1a2e;
    margin-bottom: 2.5rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto 2.5rem;
}

.benefit-card {
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.benefit-card h3 {
    color: #1a1a2e;
    margin-bottom: 0.5rem;
}

.benefit-card p {
    color: #666;
    font-size: 0.95rem;
}

.plans {
    padding: 4rem 2rem;
    text-align: center;
}

.plans h2 {
    font-size: 2rem;
    color: #1a1a2e;
    margin-bottom: 2.5rem;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto 1.5rem;
}

.plan-card {
    background: #fff;
    border: 2px solid #e5e5e5;
    border-radius: 12px;
    padding: 2rem;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.plan-highlight {
    border-color: #0066ff;
    transform: scale(1.05);
}

.plan-highlight:hover {
    transform: scale(1.05) translateY(-5px);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #0066ff;
    color: #fff;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.plan-card h3 {
    font-size: 1.5rem;
    color: #1a1a2e;
    margin-bottom: 0.5rem;
}

.plan-desc {
    color: #666;
    margin-bottom: 1.5rem;
}

.plan-features {
    list-style: none;
    text-align: left;
    margin-bottom: 1.5rem;
}

.plan-features li {
    padding: 0.5rem 0;
    color: #444;
    border-bottom: 1px solid #f0f0f0;
}

.plan-features li:last-child {
    border-bottom: none;
}

.plan-price {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 1.5rem;
}

.plan-guarantee {
    color: #888;
    font-size: 0.9rem;
}

.faq {
    padding: 4rem 2rem;
    background: #f8f9ff;
}

.faq h2 {
    text-align: center;
    font-size: 2rem;
    color: #1a1a2e;
    margin-bottom: 2.5rem;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    padding: 1.5rem;
    border-radius: 8px;
}

.faq-item h3 {
    color: #1a1a2e;
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.faq-item p {
    color: #666;
    font-size: 0.95rem;
}

.footer {
    background: #1a1a2e;
    color: #fff;
    padding: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer p {
    color: #aaa;
}

.footer-nav {
    display: flex;
    gap: 1.5rem;
}

.footer-nav a {
    color: #aaa;
    text-decoration: none;
}

.footer-nav a:hover {
    color: #fff;
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1.1rem;
    }

    .hero-benefits {
        flex-direction: column;
        gap: 0.5rem;
    }

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

    .btn {
        width: 100%;
        max-width: 300px;
    }

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

    .plan-highlight {
        transform: none;
    }

    .plan-highlight:hover {
        transform: translateY(-5px);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}