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

:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --secondary: #34a853;
    --accent: #ea4335;
    --bg-light: #f8f9fa;
    --bg-dark: #202124;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-light: #ffffff;
    --border: #dadce0;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.15);
    --radius: 8px;
}

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

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

/* Header */
.header {
    background: var(--text-light);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 40px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
}

.main-nav {
    display: flex;
    gap: 32px;
}

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

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

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #4285f4 100%);
    color: var(--text-light);
    padding: 80px 0;
}

.hero-content {
    text-align: center;
    margin-bottom: 60px;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

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

.hero-buttons .btn-outline {
    color: var(--text-light);
    border-color: var(--text-light);
}

.hero-buttons .btn-outline:hover {
    background: var(--text-light);
    color: var(--primary);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-item {
    padding: 20px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius);
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    text-align: center;
}

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

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

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

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

.btn-block {
    display: block;
    width: 100%;
}

/* Section */
.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 48px;
    font-size: 1.1rem;
}

section {
    padding: 80px 0;
}

/* Products */
.products {
    background: var(--text-light);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.product-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--border);
    transition: all 0.3s;
    position: relative;
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.product-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.product-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--accent);
    color: var(--text-light);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.product-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.product-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.product-desc {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.product-features {
    list-style: none;
    margin-bottom: 24px;
}

.product-features li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

/* Solutions */
.solutions {
    background: var(--bg-light);
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.solution-card {
    background: var(--text-light);
    padding: 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.solution-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

.solution-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--primary);
}

.solution-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Pricing */
.pricing {
    background: var(--text-light);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.pricing-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--border);
    text-align: center;
    transition: all 0.3s;
    position: relative;
}

.pricing-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--text-light);
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.pricing-header h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.price {
    margin-bottom: 24px;
}

.price-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary);
}

.price-unit {
    font-size: 1rem;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    margin-bottom: 24px;
    text-align: left;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

/* About */
.about {
    background: var(--bg-light);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.about-stat {
    padding: 20px;
}

.about-stat-value {
    display: block;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 8px;
}

.about-stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.about-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-bottom: 40px;
}

.footer-col h4 {
    margin-bottom: 16px;
    font-size: 1.1rem;
}

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

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col ul li a:hover {
    color: var(--text-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .product-grid,
    .pricing-grid,
    .solution-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-stats,
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-top {
        flex-direction: column;
        gap: 16px;
    }
    
    .main-nav {
        gap: 16px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .product-grid,
    .pricing-grid,
    .solution-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-stats,
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
}