:root {
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--gray-800);
    line-height: 1.5;
    background-color: var(--gray-50);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: color 0.2s;
}

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

.cta-button {
    background-color: var(--primary);
    color: white;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    text-decoration: none;
    transition: background-color 0.2s;
    display: inline-block;
    text-align: center;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.cta-button:hover {
    background-color: var(--primary-dark);
}

.cta-button.secondary {
    background-color: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.cta-button.secondary:hover {
    background-color: var(--gray-50);
}

.hero {
    padding: 4rem 0;
    text-align: center;
    background: linear-gradient(to bottom, white, var(--gray-50));
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.hero p {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 36rem;
    margin: 0 auto 2rem;
}

.security-badge {
    display: inline-block;
    font-weight: 500;
    color: white;
    background-color: #10B981;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.protection-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: 0.25rem;
}

.trust-indicators {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.trust-indicators span {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

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

.demo {
    padding: 4rem 0;
    background-color: white;
}

.demo-container {
    max-width: 600px;
    margin: 2rem auto;
}

#demo-text {
    width: 100%;
    min-height: 100px;
    padding: 1rem;
    border: 1px solid var(--gray-200);
    border-radius: 0.375rem;
    font-size: 1rem;
    margin-bottom: 1rem;
    resize: vertical;
}

.results-container {
    background-color: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 0.375rem;
    padding: 1.5rem;
    margin-top: 1rem;
}

.results-container h3 {
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.protection-action {
    margin-top: 1rem;
    padding: 1rem;
    background-color: #F0FDF4;
    border: 1px solid #BBF7D0;
    border-radius: 0.375rem;
}

.protection-text {
    color: #166534;
    font-weight: 500;
}

.threat-score {
    font-weight: 700;
    color: #DC2626;
}

.result-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--gray-200);
}

.result-item:last-child {
    border-bottom: none;
}

.result-item .label {
    font-weight: 500;
    color: var(--gray-700);
}

.result-item .value {
    font-weight: 600;
    color: var(--primary);
}

.features {
    padding: 4rem 0;
    background-color: var(--gray-50);
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
}

.section-title h2 {
    font-size: 2rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.section-title p {
    color: var(--gray-600);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: white;
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    background-color: var(--gray-100);
    width: 3rem;
    height: 3rem;
    border-radius: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.protection {
    padding: 4rem 0;
    background-color: white;
}

.protection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.protection-category {
    background-color: var(--gray-50);
    border-radius: 0.5rem;
    padding: 1.5rem;
    border: 1px solid var(--gray-200);
}

.protection-category h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.protection-category ul {
    list-style: none;
}

.protection-category li {
    padding: 0.5rem 0;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-200);
}

.protection-category li:last-child {
    border-bottom: none;
}

.protection-category li:before {
    content: "🛡️ ";
    margin-right: 0.5rem;
}

.pricing {
    padding: 4rem 0;
    background-color: var(--gray-50);
}

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

.pricing-card {
    background-color: white;
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: relative;
    border: 2px solid transparent;
}

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

.pricing-badge {
    position: absolute;
    top: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.price {
    margin: 1rem 0;
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
}

.price-period {
    font-size: 1rem;
    color: var(--gray-600);
}

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

.pricing-features li {
    padding: 0.5rem 0;
    color: var(--gray-700);
}

.pricing-cta {
    width: 100%;
    text-align: center;
    padding: 0.75rem 1rem;
    font-weight: 600;
}

.pricing-guarantee {
    text-align: center;
    margin-top: 2rem;
    color: var(--gray-600);
    font-size: 0.875rem;
}

.signup {
    padding: 4rem 0;
    text-align: center;
    background-color: white;
}

.waitlist-form {
    max-width: 28rem;
    margin: 2rem auto 0;
}

footer {
    background-color: var(--gray-800);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

footer a {
    color: white;
    text-decoration: underline;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .cta-group {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 250px;
    }
    
    .protection-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .trust-indicators {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .protection-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}