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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0e7ff 100%);
    min-height: 100vh;
}

.header {
    background: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid #e5e7eb;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem; /* khoảng cách giữa ảnh và tên */
}

.company-name {
    font-size: 2.5rem;
    font-weight: bold;
    color: orange;
    margin-bottom: 0.5rem;
}


.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 1rem;
}

.title-section {
    text-align: center;
    margin-bottom: 3rem;
}

.badge {
    display: inline-block;
    background: #f3f4f6;
    color: #374151;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 1.125rem;
    margin-bottom: 1rem;
    border: 1px solid #d1d5db;
}

.main-title {
    font-size: 2rem;
    font-weight: bold;
    color: #111827;
    margin-bottom: 1rem;
}

.main-description {
    font-size: 1.25rem;
    color: #6b7280;
    max-width: 48rem;
    margin: 0 auto;
}

.regulations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.regulation-card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
    overflow: hidden;
}

.regulation-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.card-header {
    padding: 1.5rem 1.5rem 0.75rem;
}

.card-title-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-icon {
    font-size: 1.5rem;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
}

.card-subtitle {
    font-size: 0.875rem;
    color: #6b7280;
    margin-top: 0.25rem;
}

.card-content {
    padding: 0 1.5rem 1.5rem;
}

.content-list {
    list-style: none;
}

.content-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.bullet {
    width: 6px;
    height: 6px;
    background: #3b82f6;
    border-radius: 50%;
    margin-top: 0.5rem;
    flex-shrink: 0;
}

.content-text {
    color: #374151;
    font-size: 0.875rem;
    line-height: 1.5;
}

.footer-section {
    margin-top: 4rem;
    text-align: center;
}

.separator {
    height: 1px;
    background: #e5e7eb;
    margin-bottom: 2rem;
}

.footer-card {
    background: white;
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    max-width: 64rem;
    margin: 0 auto;
}

.footer-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 1rem;
}

.footer-text {
    color: #374151;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.update-badge {
    display: inline-block;
    color: #2563eb;
    border: 1px solid #bfdbfe;
    padding: 0.25rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .company-name {
        font-size: 2rem;
        color: orange;
    }

    .main-title {
        font-size: 1.75rem;
    }

    .main-description {
        font-size: 1.125rem;
    }

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

    .main-content {
        padding: 2rem 1rem;
    }
}