/* CSS Reset & Variables */
        :root {
            --primary-color: #3b82f6;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --bg-glass: rgba(15, 23, 42, 0.6);
            --border-glass: rgba(255, 255, 255, 0.1);
            --card-bg: rgba(30, 41, 59, 0.7);
        }

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

        /* Sticky Footer Wrapper */
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            color: var(--text-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            line-height: 1.6;
            background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #311042 100%);
            background-attachment: fixed;
        }

        h1 { margin-bottom: 2rem;}
        h3 { margin-top: 1em; margin-bottom: 1em;}
        ul, ol { margin-left: 25px; }
        p { margin-bottom: 25px; }
        a { color: white; }

        /* Sticky Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-glass);
        }

        .navbar {
            width: 90%;
            max-width: 1800px;
            margin: 0 auto;
            padding: 1rem 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .brand-logo {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-main);
            text-decoration: none;
            letter-spacing: -0.5px;
        }

        /* Navigation Menu */
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-link {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.2s ease;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary-color);
        }

        /* Mobile Hamburger */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            flex-direction: column;
            gap: 6px;
        }

        .nav-toggle span {
            display: block;
            width: 25px;
            height: 2px;
            background-color: var(--text-main);
            transition: 0.3s ease;
        }

        /* 90% Screen Width Main Content Container */
        .main-content {
            flex: 1;
            margin-top: 30px; 
            padding: 3rem 0;
            width: 90%;
            max-width: 1800px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Modern Layout Layout/Grid Utilities */
        .col-1 {
            display: block;
        }

        .col-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }

        /* Task Card Block */
        .task-card {
            background: var(--card-bg);
            border: 1px solid var(--border-glass);
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(8px);
        }

        .task-card h1, .task-card h2 {
            margin-bottom: 1rem;
            color: #ffffff;
        }

        /* Sticky Footer */
.site-footer {
    padding: 30px 0;
    background: #111;
    color: #ccc;
    text-align: center;
}

.footer-links {
    margin-bottom: 15px;
}

.footer-links a {
    margin: 0 12px; /* ← spacing between links */
    color: #ccc;
    text-decoration: none;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: #fff;
}

.footer-text {
    font-size: 0.85rem;
    opacity: 0.8;
}


        /* Mobile and Tablet Responsiveness */
        @media (max-width: 992px) {
            /* Collapse 2 columns to 1 on medium screens */
            .col-2 {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .nav-menu {
                position: fixed;
                top: 65px;
                right: -100%;
                width: 250px;
                height: calc(100vh - 65px);
                background: #0f172a;
                flex-direction: column;
                padding: 2rem;
                gap: 1.5rem;
                transition: 0.3s ease;
                border-left: 1px solid var(--border-glass);
            }

            .nav-menu.active {
                right: 0;
            }

            .task-card {
                padding: 1.5rem;
            }
            
            .nav-toggle.open span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            .nav-toggle.open span:nth-child(2) {
                opacity: 0;
            }
            .nav-toggle.open span:nth-child(3) {
                transform: rotate(-45deg) translate(6px, -7px);
            }
        }