:root {
        --main-bg-color: #0A192F;
        --gradient-start: #64FFDA;
        --gradient-end: #21D4FD;
        --accent-color: #FF6B35;
        --text-color: #FFFFFF;
        --card-bg: rgba(10, 25, 47, 0.8);
        --card-hover-scale: 1.05;
        --card-hover-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        --font-primary: 'Inter', 'Poppins', sans-serif;
        --font-code: 'Courier New', Courier, monospace;
        --transition-speed: 0.3s;
    }

    body {
        margin: 0;
        padding: 0;
        font-family: var(--font-primary);
        background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
        color: var(--text-color);
        line-height: 1.6;
    }

    header {
        padding: 20px;
        text-align: center;
        background: rgba(10, 25, 47, 0.9);
        position: sticky;
        top: 0;
        z-index: 1000;
    }

    header h1 {
        margin: 0;
        font-size: 2em;
        color: var(--accent-color);
    }

    nav {
        margin-top: 10px;
    }

    nav a {
        color: var(--text-color);
        text-decoration: none;
        margin: 0 15px;
        font-size: 1em;
        transition: color var(--transition-speed);
    }

    nav a:hover {
        color: var(--accent-color);
    }

    .container {
        max-width: 1200px;
        margin: 40px auto;
        padding: 0 20px;
    }

    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }

    .card {
        background: var(--card-bg);
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        transition: transform var(--transition-speed), box-shadow var(--transition-speed);
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .card:hover {
        transform: scale(var(--card-hover-scale));
        box-shadow: var(--card-hover-shadow);
    }

    .card img {
        width: 100%;
        height: auto;
        border-radius: 5px;
        margin-bottom: 15px;
    }

    .card-title {
        font-size: 1.2em;
        margin-bottom: 10px;
        color: var(--accent-color);
    }

    .card-description {
        flex-grow: 1;
        font-size: 0.95em;
    }

    .card-actions {
        margin-top: 15px;
    }

    .card-actions a {
        text-decoration: none;
        color: var(--text-color);
        background: var(--accent-color);
        padding: 8px 12px;
        border-radius: 5px;
        font-size: 0.9em;
        transition: background var(--transition-speed);
    }

    .card-actions a:hover {
        background: rgba(255, 107, 53, 0.8);
    }

    article {
        background: var(--card-bg);
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        margin-bottom: 40px;
    }

    article h2, article h3, article h4 {
        color: var(--accent-color);
    }

    article pre {
        background: #1e2a38;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-family: var(--font-code);
        font-size: 0.9em;
        margin: 15px 0;
    }

    article code {
        font-family: var(--font-code);
        background: #1e2a38;
        padding: 2px 4px;
        border-radius: 3px;
    }

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

    table, th, td {
        border: 1px solid #3a506b;
    }

    th, td {
        padding: 12px;
        text-align: left;
    }

    th {
        background: #1e2a38;
    }

    tr:nth-child(even) {
        background: #131f3c;
    }

    .notice {
        text-align: center;
        font-size: 1em;
        margin: 20px 0;
        color: var(--accent-color);
    }

    footer {
        text-align: center;
        padding: 20px;
        background: rgba(10, 25, 47, 0.9);
    }

    footer p {
        margin: 0;
        font-size: 0.9em;
    }

    /* Code block styling */
    pre {
        background: #1e2a38;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-family: var(--font-code);
        font-size: 0.9em;
        margin: 15px 0;
    }

    /* Responsive Design */
    @media (max-width: 1440px) {
        .container {
            max-width: 1024px;
        }
    }

    @media (max-width: 1200px) {
        .container {
            max-width: 960px;
        }
    }

    @media (max-width: 1024px) {
        .grid {
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 1.8em;
        }
        nav a {
            margin: 0 10px;
            font-size: 0.95em;
        }
        .grid {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 1.5em;
        }
        nav a {
            display: block;
            margin: 10px 0;
        }
        .card {
            padding: 15px;
        }
        .card-title {
            font-size: 1.1em;
        }
        .card-description {
            font-size: 0.9em;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.2em;
        }
        nav a {
            font-size: 0.85em;
        }
        .card {
            padding: 10px;
        }
        .card-title {
            font-size: 1em;
        }
        .card-description {
            font-size: 0.85em;
        }
    }

    /* Aurora Animation */
    @keyframes aurora-move {
        0% {
            background-position: 0% 50%;
        }
        50% {
            background-position: 100% 50%;
        }
        100% {
            background-position: 0% 50%;
        }
    }

    .animated-background {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
        z-index: -1;
        opacity: 0.3;
    }