:root {
    --primary-color: #1E3A8A;
    --secondary-color: #6D28D9;
    --accent-color: #F59E0B;
    --bg-gradient: linear-gradient(135deg, #1E3A8A, #6D28D9);
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-blur: blur(15px);
    --font-primary: 'Roboto', sans-serif;
    --font-secondary: 'Montserrat', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: #fff;
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
}

header {
    width: 100%;
    padding: 20px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    z-index: 1000;
    text-align: center;
}

header h1 {
    font-family: var(--font-secondary);
    font-weight: 700;
    font-size: 2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

main {
    width: 90%;
    max-width: 1200px;
    margin: 100px auto 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    padding: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

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

.card h2 {
    font-family: var(--font-secondary);
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.card p {
    font-size: 1rem;
    margin-bottom: 15px;
}

button {
    background: var(--accent-color);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    font-family: var(--font-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, background 0.3s ease;
}

button:hover {
    transform: scale(1.1);
    background: #FFB800;
}

article {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
    color: #000;
}

article h2 {
    font-family: var(--font-secondary);
    font-weight: 700;
    font-size: 1.8rem;
    margin-bottom: 15px;
}

article pre {
    background: #f4f4f4;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    margin: 10px 0;
}

article code {
    color: #D9534F;
}

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

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

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

@media (max-width: 768px) {
    header h1 {
        font-size: 1.5rem;
    }

    main {
        grid-template-columns: 1fr;
    }

    article pre {
        font-size: 0.8rem;
    }
}