:root {
    --primary-color: #0a2540;
    --secondary-color: #1a4a6a;
    --accent-color: #2d7fb8;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #ffffff;
    --bg-light: #f5f7fa;
    --border-color: #e0e0e0;
    --success-color: #4caf50;
    --error-color: #f44336;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

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

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

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

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 1.5rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.logo {
    width: 48px;
    height: 48px;
    border-radius: 8px;
}

header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    flex: 1;
}

.language-selector {
    display: flex;
}

.lang-select {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='white' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
}

.lang-select:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.lang-select:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    background-color: rgba(255, 255, 255, 0.25);
}

.lang-select option {
    background: var(--primary-color);
    color: white;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    padding: 4rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 2rem;
}

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

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* Features Section */
.features {
    padding: 4rem 0;
    background: var(--bg-light);
}

.features h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    align-items: stretch;
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    display: flex;
    flex-direction: column;
    min-width: 0;
    width: 100%;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Pricing Section */
.pricing {
    padding: 4rem 0;
}

.pricing h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.pricing-intro {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 3rem;
}

/* Comparison Table */
.comparison-table-wrapper {
    overflow-x: auto;
    margin-bottom: 3rem;
    box-shadow: var(--shadow);
    border-radius: 12px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    min-width: 600px;
}

.comparison-table thead {
    background: var(--primary-color);
    color: white;
}

.comparison-table th {
    padding: 1.25rem;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--secondary-color);
}

.comparison-table th:first-child {
    border-top-left-radius: 12px;
}

.comparison-table th:last-child {
    border-top-right-radius: 12px;
}

.comparison-table th:not(:first-child) {
    text-align: center;
}

.comparison-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table tbody tr:hover {
    background: var(--bg-light);
}

.comparison-table td:first-child {
    font-weight: 500;
    color: var(--text-color);
}

.comparison-table td:not(:first-child) {
    text-align: center;
    font-size: 1.25rem;
}

.comparison-table td:contains("✓") {
    color: var(--success-color);
}

.comparison-table td:contains("✗") {
    color: var(--error-color);
}

/* Account Cards */
.account-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.account-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    position: relative;
    transition: all 0.3s ease;
}

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

.account-card.featured {
    border-color: var(--accent-color);
    border-width: 3px;
}

.account-card.pro {
    border-color: var(--primary-color);
}

.badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.account-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.account-card ul {
    list-style: none;
    margin-top: 1.5rem;
}

.account-card li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-light);
}

.account-card li:last-child {
    border-bottom: none;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.cta h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

.cta .btn-primary:hover {
    background: var(--bg-light);
}

/* Store Badges */
.store-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.store-badge {
    height: 50px;
    width: auto;
    display: block;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-company {
    margin-top: 0.5rem;
    opacity: 0.8;
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

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

    .account-cards {
        grid-template-columns: 1fr;
    }
    
    .store-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .store-badge {
        height: 45px;
    }

    .comparison-table-wrapper {
        margin: 0 -20px;
        border-radius: 0;
    }

    .comparison-table {
        font-size: 0.875rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .logo {
        width: 40px;
        height: 40px;
    }
}