body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #1E3C72, #2A5298);
    color: #fff;
    line-height: 1.6;
}
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
    padding: 15px 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}
header h1 {
    margin: 0;
    font-size: 24px;
    text-align: center;
    color: #FFC107;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}
.tab {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 70px;
    padding: 20px;
    background: linear-gradient(135deg, #2A5298, #4A90E2);
}
.tab button {
    background: linear-gradient(to right, #4A90E2, #FFC107);
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s ease;
}
.tab button:hover {
    transform: scale(1.1);
}
.tabcontent {
    display: none;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin: 20px;
    animation: fadeIn 0.5s ease-in-out;
}
.tabcontent.active {
    display: block;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.card {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 10px;
    margin: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.card img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}
pre {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: rgba(255, 255, 255, 0.2);
}
th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
@media (max-width: 768px) {
    .tab {
        flex-direction: column;
    }
    pre {
        font-size: 14px;
    }
}
@media (max-width: 480px) {
    header h1 {
        font-size: 20px;
    }
    .tab button {
        padding: 8px 15px;
        font-size: 14px;
    }
}