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

/* Body Styling */
body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #00008B, #6A0DAD);
    color: #FFFFFF;
    line-height: 1.6;
    padding: 20px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    padding: 50px 0;
    background: linear-gradient(135deg, #1E1E1E, #333333);
    border-radius: 10px;
    margin-bottom: 40px;
}
header h1 {
    font-size: 48px;
    color: #33FF99;
    margin-bottom: 10px;
}
header p {
    font-size: 20px;
    color: #FFFFFF;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(18, 18, 18, 0.9);
    padding: 15px 0;
    z-index: 1000;
}
nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
}
nav ul li {
    margin: 0 15px;
}
nav ul li a {
    color: #FFFFFF;
    text-decoration: none;
    font-size: 18px;
    transition: color 0.3s ease;
}
nav ul li a:hover {
    color: #33FF99;
}

/* Main Content */
main {
    margin-top: 80px;
}
section {
    margin-bottom: 40px;
    padding: 20px;
    background: rgba(30, 30, 30, 0.8);
    border-radius: 10px;
}
section h2 {
    font-size: 32px;
    color: #FF69B4;
    margin-bottom: 20px;
}
section p {
    font-size: 18px;
    margin-bottom: 15px;
}
section pre {
    background: #1E1E1E;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}
section pre code {
    color: #00FF7F;
    font-family: 'Courier New', Courier, monospace;
    font-size: 16px;
}

/* Image Gallery */
.gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.gallery img {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 10px;
    transition: transform 0.3s ease;
}
.gallery img:hover {
    transform: scale(1.05);
}

/* Cards */
.cards {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.card {
    background: #1E1E1E;
    border-radius: 10px;
    padding: 20px;
    flex: 1 1 calc(33.333% - 40px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
}
.card h3 {
    font-size: 24px;
    color: #00FFFF;
    margin-bottom: 10px;
}
.card p {
    font-size: 16px;
    color: #D3D3D3;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px 0;
    background: linear-gradient(135deg, #1E1E1E, #333333);
    border-radius: 10px;
}
footer p {
    font-size: 16px;
    color: #FFFFFF;
}

/* Responsive Design */
@media (max-width: 1440px) {
    .card {
        flex: 1 1 calc(33.333% - 40px);
    }
}
@media (max-width: 1200px) {
    .card {
        flex: 1 1 calc(50% - 40px);
    }
}
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
    }
    nav ul li {
        margin: 10px 0;
    }
    .cards {
        flex-direction: column;
    }
    .card {
        flex: 1 1 100%;
    }
}
@media (max-width: 480px) {
    header h1 {
        font-size: 32px;
    }
    header p {
        font-size: 16px;
    }
    section h2 {
        font-size: 24px;
    }
    section p, section pre code {
        font-size: 14px;
    }
}
@media (max-width: 320px) {
    nav ul li a {
        font-size: 16px;
    }
    .gallery img {
        max-width: 100%;
    }
}