:root {
    --main-color: #0D47A1;
    --accent-color: #651FFF;
    --highlight-color: #32CD32;
    --contrast-color: #FF6F00;
    --text-color: #FFFFFF;
    --background-gradient: linear-gradient(135deg, var(--main-color), var(--accent-color));
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.06);
}

body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background: var(--background-gradient);
    color: var(--text-color);
    line-height: 1.6;
}

header {
    text-align: center;
    padding: 40px 20px;
    background: rgba(0, 0, 0, 0.2);
}

header h1 {
    font-size: 2.5rem;
    margin: 0;
    color: var(--highlight-color);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
}

.card img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 10px;
}

.card h2 {
    font-size: 1.5rem;
    margin: 0 0 10px;
    color: var(--contrast-color);
}

.card p {
    font-size: 1rem;
    margin: 0 0 10px;
}

.card a {
    color: var(--highlight-color);
    text-decoration: none;
    font-weight: bold;
}

.card a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

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

footer {
    text-align: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    margin-top: 40px;
}

footer p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

pre {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.9rem;
    color: var(--text-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

table th, table td {
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px;
    text-align: left;
}

table th {
    background: rgba(0, 0, 0, 0.1);
}