/* Importing Fonts */
    @import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&family=Open+Sans:wght@400;600&display=swap');

    /* Root Variables */
    :root {
        --main-color: #0A192F;
        --accent-color: #FFA500;
        --text-color: #FFFFFF;
        --background-color: #F8F9FA;
        --secondary-background: #1E2A38;
        --border-radius: 8px;
        --transition-speed: 0.3s;
        --max-width: 1200px;
        --padding: 20px;
        --font-primary: 'Open Sans', sans-serif;
        --font-secondary: 'Montserrat', sans-serif;
    }

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

    body {
        font-family: var(--font-primary);
        background: linear-gradient(135deg, var(--background-color), var(--secondary-background));
        color: var(--main-color);
        line-height: 1.6;
        padding: var(--padding);
    }

    img {
        width: 100%;
        max-width: 320px;
        border-radius: var(--border-radius);
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    }

    img:hover {
        transform: scale(1.05);
        box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    }

    h2, h3, h4 {
        font-family: var(--font-secondary);
        color: var(--text-color);
        margin-bottom: 15px;
        transition: font-weight var(--transition-speed);
    }

    h2 {
        font-size: 2rem;
        margin-top: 40px;
        position: relative;
    }

    h3 {
        font-size: 1.75rem;
        margin-top: 30px;
    }

    h4 {
        font-size: 1.5rem;
        margin-top: 25px;
    }

    h2:hover, h3:hover, h4:hover {
        font-weight: 700;
    }

    p {
        font-size: 1rem;
        margin-bottom: 20px;
        color: var(--main-color);
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: var(--border-radius);
        box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        transition: background var(--transition-speed);
    }

    p:hover {
        background: rgba(255, 165, 0, 0.1);
    }

    pre {
        background: #2D3748;
        color: #CBD5E0;
        padding: 15px;
        border-radius: var(--border-radius);
        overflow-x: auto;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        margin-bottom: 20px;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        font-size: 0.95rem;
    }

    ul {
        list-style: none;
        margin-bottom: 20px;
    }

    ul li {
        position: relative;
        padding-left: 20px;
        margin-bottom: 10px;
        font-size: 1rem;
    }

    ul li::before {
        content: '✔️';
        position: absolute;
        left: 0;
        color: var(--accent-color);
    }

    .section {
        padding: 40px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .section:nth-child(even) {
        background: linear-gradient(135deg, rgba(10,25,47,0.9), rgba(255,165,0,0.1));
    }

    .container {
        max-width: var(--max-width);
        width: 100%;
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .decorative-image {
        max-width: 320px;
        width: 100%;
        margin: 20px 0;
        animation: fadeIn 1s ease-in-out;
    }

    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(20px); }
        to { opacity: 1; transform: translateY(0); }
    }

    .footer-note {
        font-size: 0.875rem;
        color: var(--text-color);
        margin-top: 40px;
        text-align: center;
        animation: slideUp 1s ease-out;
    }

    @keyframes slideUp {
        from { opacity: 0; transform: translateY(20px); }
        to { opacity: 1; transform: translateY(0); }
    }

    /* Buttons and Tabs */
    .tabs {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        width: 100%;
        border-bottom: 2px solid var(--accent-color);
        margin-bottom: 30px;
    }

    .tab-item {
        padding: 10px 20px;
        margin-right: 10px;
        cursor: pointer;
        color: var(--text-color);
        background: var(--main-color);
        border-radius: var(--border-radius) var(--border-radius) 0 0;
        transition: background var(--transition-speed), transform var(--transition-speed);
    }

    .tab-item.active, .tab-item:hover {
        background: var(--accent-color);
        transform: scale(1.05);
    }

    /* Responsive Design */
    @media (max-width: 768px) {
        .container {
            grid-template-columns: 1fr;
        }

        .tabs {
            flex-direction: column;
            align-items: flex-start;
        }

        .tab-item {
            margin-right: 0;
            margin-bottom: 10px;
            width: 100%;
        }
    }

    @media (min-width: 769px) and (max-width: 1920px) {
        .container {
            grid-template-columns: 1fr 2fr;
        }
    }