body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    line-height: 1.6;
    color: #333;
}

header {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: #ffffff;
    padding: 20px;
    margin-bottom: 20px;
    border-bottom: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

h1 {
    margin: 0;
    font-size: 2.2em;
    font-weight: 600;
    color: #ffffff;
}

.header-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    margin-bottom: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    min-height: calc(100vh - 40px);
}

main {
    padding: 0;
    background: white;
    height: calc(100vh - 200px);
}

.services-grid {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: center;
}

.btn, button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #007bff;
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.2);
    font-family: 'Arial', sans-serif;
}

.btn:hover, button:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

/* iframe container styles */
.iframe-container {
    margin-top: 0;
    border: none;
    border-radius: 8px;
    overflow: hidden;
    background: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    height: calc(100vh - 240px);
    position: relative;
    margin: 0 20px;
}

iframe {
    width: 100%;
    height: calc(100vh - 240px);
    border: none;
    display: block;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin: 0 20px;
    margin-top: 0;
}

.iframe-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    background: rgba(255, 255, 255, 0.9);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.loading-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 10px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive design */
@media (max-width: 768px) {
    .header-nav {
        flex-direction: column;
        gap: 15px;
        text-align: center;
        padding: 15px;
    }
    
    h1 {
        font-size: 1.8em;
    }
    
    .container {
        margin: 10px;
        border-radius: 10px;
        min-height: calc(100vh - 20px);
    }
    
    main {
        height: calc(100vh - 220px);
    }
    
    .services-grid {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .btn, button {
        padding: 10px 20px;
        font-size: 13px;
    }
    
    iframe {
        height: calc(100vh - 260px);
        margin: 0 10px;
    }
    
    .iframe-container {
        height: calc(100vh - 260px);
        margin: 0 10px;
    }
}

/* Additional enhancements */
.btn:active, button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 123, 255, 0.2);
}

.btn:focus, button:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* Footer styling */
footer {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: #ffffff;
    padding: 15px 20px;
    margin-top: auto;
    border-top: 1px solid #34495e;
    text-align: center;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-content p {
    margin: 0;
    font-size: 0.9em;
    opacity: 0.9;
}