* {
    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: #333;
    background-color: #f8f9fa;
}

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

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 300;
}

.sticky-nav {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #e9ecef;
}

.sticky-nav .container {
    display: flex;
    justify-content: center;
    gap: 0;
}

.nav-btn {
    background: none;
    border: none;
    padding: 1rem 2rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: #6c757d;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

.nav-btn:hover {
    color: #495057;
    background-color: #f8f9fa;
}

.nav-btn.active {
    color: #667eea;
    border-bottom-color: #667eea;
    background-color: #fff;
}

main {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

.content-section {
    display: none;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    padding: 2rem;
    margin-bottom: 2rem;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.document-header {
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
}

.document-header h2 {
    font-size: 2rem;
    color: #212529;
    margin-bottom: 0.5rem;
}

.last-updated, .company {
    color: #6c757d;
    font-size: 0.95rem;
    margin: 0.25rem 0;
}

.section {
    margin-bottom: 2rem;
    padding: 1rem 0;
}

.section h3 {
    color: #495057;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e9ecef;
}

.section p {
    margin-bottom: 1rem;
    color: #495057;
}

.section ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.section li {
    margin-bottom: 0.5rem;
    color: #495057;
}

.section a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

.section a:hover {
    color: #5a67d8;
    text-decoration: underline;
}

footer {
    background: #343a40;
    color: white;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 3rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .sticky-nav .container {
        flex-direction: column;
    }
    
    .nav-btn {
        padding: 0.75rem 1rem;
        border-bottom: none;
        border-left: 3px solid transparent;
    }
    
    .nav-btn.active {
        border-left-color: #667eea;
        border-bottom-color: transparent;
    }
    
    .content-section {
        padding: 1.5rem;
        margin: 1rem 0;
        border-radius: 8px;
    }
    
    .section h3 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .content-section {
        padding: 1rem;
        margin: 0.5rem 0;
    }
    
    .document-header h2 {
        font-size: 1.5rem;
    }
}