:root {
            /* === Collection 2: The Offensive Labs === */
            --bg: #0D0E12;
            --card: #161820;
            --accent: #E64833;
            --sage: #90AEAD;
            --matrix: #00FF66;
            --text: #e0e0e0;
            --muted: #90AEAD;
            --border: #252830;
            --danger: #E64833;
            --warning: #f0a500;
            --success: #00FF66;
            --info: #90AEAD;
            --glow: #E64833;
        }

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

        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            padding: 40px 20px;
            position: relative;
            overflow-x: hidden;
            background-image: 
                radial-gradient(ellipse at 20% 50%, rgba(230, 72, 51, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(0, 255, 102, 0.03) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(144, 174, 173, 0.04) 0%, transparent 50%);
        }

        #spiderWebCanvas {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
        }

        .corner-web {
            position: fixed;
            width: 220px;
            height: 220px;
            pointer-events: none;
            opacity: 0.08;
            z-index: 0;
        }

        .corner-web svg { width: 100%; height: 100%; }
        .corner-web.top-left { top: -10px; left: -10px; }
        .corner-web.top-right { top: -10px; right: -10px; transform: scaleX(-1); }
        .corner-web.bottom-right {
            bottom: -10px; right: -10px; transform: scale(-1);
            width: 160px; height: 160px; opacity: 0.05;
        }

        .dangling-spider {
            position: fixed;
            top: 0; left: 12%;
            z-index: 5;
            pointer-events: none;
            animation: dangleSwing 4s ease-in-out infinite;
            transform-origin: top center;
        }

        .dangling-spider .thread {
            width: 1px; height: 90px;
            background: rgba(144, 174, 173, 0.2);
            margin: 0 auto;
        }

        .dangling-spider .body {
            font-size: 22px;
            display: block;
            text-align: center;
            filter: drop-shadow(0 0 10px rgba(230, 72, 51, 0.7));
        }

        @keyframes dangleSwing {
            0%, 100% { transform: rotate(-6deg); }
            50% { transform: rotate(6deg); }
        }

        .container {
            max-width: 1000px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .header {
            text-align: center;
            margin-bottom: 50px;
        }

        .header .logo {
            width: 100px; height: 100px;
            margin-bottom: 10px;
            animation: float 3s ease-in-out infinite;
            filter: drop-shadow(0 0 20px rgba(230, 72, 51, 0.6));
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
        }

        .header h1 {
            font-size: 42px; font-weight: 800;
            background: linear-gradient(135deg, var(--accent), #ff6b5a, var(--matrix));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 10px;
            letter-spacing: -0.5px;
        }

        .header .tagline {
            color: var(--sage);
            font-size: 16px;
            letter-spacing: 1.5px;
            text-transform: uppercase;
        }

        .header .author {
            color: var(--accent);
            font-size: 14px;
            margin-top: 8px;
            font-weight: 500;
        }

        .stats-bar {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: center;
            padding: 20px 30px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 16px;
            min-width: 120px;
            backdrop-filter: blur(10px);
            transition: all 0.3s;
        }

        .stat-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(230, 72, 51, 0.15);
            border-color: var(--accent);
        }

        .stat-number {
            font-size: 36px; font-weight: 800;
            background: linear-gradient(135deg, var(--accent), var(--matrix));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            color: var(--sage);
            font-size: 13px;
            margin-top: 4px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .lab-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }

        .lab-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 25px;
            text-decoration: none;
            color: var(--text);
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(10px);
        }

        .lab-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 3px;
        }



        .lab-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 147, 49, 0.2);
            border-color: var(--accent);
        }

        .lab-card .lab-number {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 11px; font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 15px;
        }

        .lab-card:nth-child(1) .lab-number { background: rgba(230, 72, 51, 0.15); color: var(--accent); }
        .lab-card:nth-child(2) .lab-number { background: rgba(240, 165, 0, 0.15); color: var(--warning); }
        .lab-card:nth-child(3) .lab-number { background: rgba(0, 255, 102, 0.15); color: var(--matrix); }
        .lab-card:nth-child(4) .lab-number { background: rgba(144, 174, 173, 0.15); color: var(--sage); }
        .lab-card:nth-child(5) .lab-number { background: rgba(230, 72, 51, 0.15); color: var(--accent); }
        .lab-card:nth-child(6) .lab-number { background: rgba(0, 255, 102, 0.15); color: var(--matrix); }
        .lab-card:nth-child(7) .lab-number { background: rgba(144, 174, 173, 0.15); color: var(--sage); }
        .lab-card:nth-child(8) .lab-number { background: rgba(230, 72, 51, 0.15); color: var(--accent); }

        .lab-card h3 { font-size: 20px; margin-bottom: 8px; color: #fff; }
        .lab-card .lab-type { font-size: 12px; color: var(--sage); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
        .lab-card .lab-desc { font-size: 13px; color: var(--sage); line-height: 1.6; margin-bottom: 15px; }
        .lab-card .lab-difficulty { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600; }

        .difficulty-easy { color: var(--matrix); }
        .difficulty-medium { color: var(--warning); }
        .difficulty-hard { color: var(--accent); }

        .lab-card .arrow {
            float: right; opacity: 0;
            transition: all 0.3s;
            font-size: 20px; color: var(--accent);
        }

        .lab-card:hover .arrow { opacity: 1; transform: translateX(5px); }

        .lab-card .spider-icon {
            position: absolute;
            top: 10px; right: 15px;
            font-size: 20px; opacity: 0;
            transition: all 0.3s;
        }

        .lab-card:hover .spider-icon {
            opacity: 0.6;
            animation: spiderWalk 0.5s ease-in-out;
            filter: drop-shadow(0 0 5px var(--accent));
        }

        @keyframes spiderWalk {
            0%, 100% { transform: translateY(0); }
            25% { transform: translateY(-3px) translateX(-3px); }
            75% { transform: translateY(3px) translateX(3px); }
        }

        .tips-section {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 30px;
            margin-bottom: 40px;
            backdrop-filter: blur(10px);
        }

        .tips-section h2 {
            font-size: 22px; margin-bottom: 20px;
            color: #fff;
            display: flex; align-items: center; gap: 10px;
        }

        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 15px;
        }

        .tip-item {
            padding: 15px;
            background: rgba(255, 255, 255, 0.01);
            border-radius: 12px;
            border: 1px solid var(--border);
            font-size: 13px; color: var(--sage);
            transition: all 0.3s;
        }

        .tip-item:hover {
            border-color: var(--accent);
            background: rgba(230, 72, 51, 0.05);
            box-shadow: 0 0 15px rgba(230, 72, 51, 0.08);
        }

        .tip-item .tip-icon { font-size: 24px; margin-bottom: 8px; }
        .tip-item strong { color: #fff; display: block; margin-bottom: 5px; }

        .tip-item code {
            background: rgba(13, 14, 18, 0.7);
            padding: 2px 6px; border-radius: 4px;
            color: var(--matrix);
            font-family: 'Fira Code', 'Consolas', monospace;
            font-size: 12px;
        }

        .footer {
            text-align: center; color: var(--sage);
            font-size: 12px; padding-top: 30px;
            border-top: 1px solid var(--border);
        }

        .footer a { color: var(--accent); text-decoration: none; }
        .footer a:hover { text-decoration: underline; color: var(--matrix); }

        .footer-spider {
            display: inline-block;
            animation: spiderSwing 2s ease-in-out infinite;
            margin: 0 5px;
            filter: drop-shadow(0 0 4px var(--accent));
        }

        @keyframes spiderSwing {
            0%, 100% { transform: rotate(0deg); }
            25% { transform: rotate(5deg); }
            75% { transform: rotate(-5deg); }
        }

        @media (max-width: 600px) {
            .header h1 { font-size: 28px; }
            .stats-bar { gap: 15px; }
            .stat-item { padding: 15px 20px; min-width: 100px; }
            .stat-number { font-size: 28px; }
            .lab-grid { grid-template-columns: 1fr; }
            .corner-web { width: 130px; height: 130px; }
            .dangling-spider { left: 6%; }
        }