/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --border: #dadce0;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --transition: all 0.2s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-secondary:hover {
    background: rgba(26, 115, 232, 0.05);
}

/* Hero */
.hero {
    padding: 120px 0 100px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    color: var(--white);
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    line-height: 1.5;
}

.hero-cta {
    margin-bottom: 24px;
}

.hero .btn-primary {
    padding: 16px 32px;
    font-size: 16px;
}

.privacy-note {
    font-size: 14px;
    opacity: 0.85;
}

/* Features */
.features {
    padding: 100px 0;
    background: var(--white);
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 64px;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.feature-card {
    padding: 32px;
    text-align: center;
    border-radius: 12px;
    transition: var(--transition);
}

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

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(26, 115, 232, 0.1);
    border-radius: 12px;
    color: var(--primary);
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.pricing-content {
    max-width: 500px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border-radius: 16px;
    padding: 48px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.pricing-header {
    margin-bottom: 32px;
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

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

.price-period {
    font-size: 18px;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 15px;
    color: var(--text-secondary);
}

.pricing-features svg {
    color: var(--primary);
    flex-shrink: 0;
}

/* CTA */
.cta {
    padding: 100px 0;
    background: var(--white);
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.cta h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.cta p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: var(--white);
    padding: 48px 0;
}

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

.footer p {
    opacity: 0.8;
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .nav-menu {
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        gap: 20px;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        padding: 80px 0 60px;
    }

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

    .hero-subtitle {
        font-size: 16px;
    }

    .section-title {
        font-size: 32px;
        margin-bottom: 48px;
    }

    .features {
        padding: 60px 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .pricing {
        padding: 60px 0;
    }

    .pricing-card {
        padding: 32px 24px;
    }

    .cta {
        padding: 60px 0;
    }

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

    .cta p {
        font-size: 16px;
    }

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .section-title {
        font-size: 28px;
    }

    .price-amount {
        font-size: 48px;
    }
}