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

:root {
    --color-primary: #2563EB;
    --color-primary-dark: #1E40AF;
    --color-text: #1A1A1A;
    --color-text-secondary: #666666;
    --color-text-muted: #999999;
    --color-bg: #FFFFFF;
    --color-bg-secondary: #F5F5F5;
    --color-border: #E5E5E5;
    --color-success: #10B981;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 64px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
header {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: var(--spacing-xxl) 0 var(--spacing-xl) 0;
}

.hero h2 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.subtitle {
    font-size: 20px;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-xl) 0;
}

.feature-card {
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-sm);
    background: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 16px;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xxl) var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    text-align: center;
}

.cta-content h2 {
    color: white;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.cta-content > p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    margin-bottom: var(--spacing-lg);
}

.email-form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 500px;
    margin: 0 auto var(--spacing-sm);
}

.email-form input {
    flex: 1;
    padding: 16px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    outline: none;
}

.email-form button {
    padding: 16px 32px;
    background: white;
    color: var(--color-primary);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    white-space: nowrap;
}

.email-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.email-form button:active {
    transform: translateY(0);
}

.form-note {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

/* Disclaimer */
.disclaimer {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.disclaimer p {
    color: var(--color-text-secondary);
    font-size: 14px;
    text-align: center;
}

/* Footer */
footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-xxl);
    text-align: center;
}

footer p {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
}

footer nav {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

footer a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

footer a:hover {
    color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 32px;
    }

    .subtitle {
        font-size: 18px;
    }

    .email-form {
        flex-direction: column;
    }

    .cta-content h2 {
        font-size: 28px;
    }

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