body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #eef2f7, #d8e0ea);
}

header {
    position: relative;
    height: 400px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center fixed;
    background-size: cover;
    filter: blur(10px);
    z-index: -1;
}

header h1 {
    font-size: 3rem;
    font-weight: bold;
    letter-spacing: 2px;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.frosted-glass {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

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

section {
    margin-bottom: 40px;
}

h2, h3, h4 {
    color: #333;
    font-weight: bold;
    margin-top: 30px;
}

p {
    font-size: 1rem;
    margin-bottom: 20px;
}

pre {
    background: #f9f9f9;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: #444;
}

code {
    background: #f0f0f0;
    padding: 2px 5px;
    border-radius: 4px;
    color: #e67e22;
}

.container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.card {
    flex: 1 1 calc(33.33% - 40px);
    background: rgba(255, 255, 255, 0.8);
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.card img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 15px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 0.9rem;
}

th, td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: left;
}

th {
    background: #f4f4f4;
    font-weight: bold;
}

@media (max-width: 768px) {
    .card {
        flex: 1 1 100%;
    }
    header h1 {
        font-size: 2.5rem;
    }
}

.loader {
    width: 50px;
    height: 50px;
    border: 4px solid #ccc;
    border-top: 4px solid #007BFF;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

a {
    color: #007BFF;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #FFD700;
}

.icon {
    width: 32px;
    height: 32px;
    background: url('https://images.gptkong.com/demo/sample2.png') no-repeat center center;
    background-size: contain;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    display: inline-block;
}