:root {
        --primary-navy: #003366;
        --safety-orange: #e67e23;
        --safety-green: #27ae60;
        --safety-red: #c0392b;
        --bg-light: #f4f7f6;
        --border-color: #e0e0e0;
        --text-main: #333;
    }

    body {
        font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        color: var(--text-main);
        line-height: 1.6;
        margin: 0;
        padding: 20px;
        background-color: #fff;
    }

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

    /* --- 1. Hero / Product Section --- */
    .hero-section {
        text-align: center;
        margin-bottom: 50px;
        border-bottom: 3px solid var(--primary-navy);
        padding-bottom: 30px;
    }

    .hero-title {
        font-size: 32px;
        color: var(--primary-navy);
        margin-bottom: 10px;
    }

    .subtitle {
        color: #666;
        font-size: 18px;
        margin-bottom: 30px;
    }

    .product-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 20px;
        justify-items: center;
    }

    .product-card {
        border: 1px solid var(--border-color);
        border-radius: 8px;
        overflow: hidden;
        transition: transform 0.2s;
        max-width: 300px;
    }

    .product-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    }

    .product-card img {
        width: 100%;
        height: auto;
        display: block;
    }

    .product-card a {
        display: block;
        padding: 10px;
        text-decoration: none;
        color: var(--primary-navy);
        font-weight: 600;
        background: #f9f9f9;
        text-align: center;
    }

    /* --- 2. Safety Do's and Don'ts --- */
    .safety-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 50px;
    }

    @media (min-width: 768px) {
        .safety-grid { grid-template-columns: 1fr 1fr; }
    }

    .safety-card {
        padding: 25px;
        border-radius: 8px;
        border: 1px solid var(--border-color);
    }

    .safety-card.always {
        background-color: #f0fdf4;
        border-top: 5px solid var(--safety-green);
    }

    .safety-card.never {
        background-color: #fef2f2;
        border-top: 5px solid var(--safety-red);
    }

    .card-header {
        font-size: 20px;
        font-weight: 800;
        margin-bottom: 15px;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .safety-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .safety-list li {
        position: relative;
        padding-left: 25px;
        margin-bottom: 10px;
        font-size: 15px;
    }

    /* Icons */
    .safety-card.always .safety-list li::before {
        content: "✔";
        color: var(--safety-green);
        position: absolute;
        left: 0;
        font-weight: bold;
    }

    .safety-card.never .safety-list li::before {
        content: "✖";
        color: var(--safety-red);
        position: absolute;
        left: 0;
        font-weight: bold;
    }

    /* --- 3. Technical Tables (Materials) --- */
    .tech-section {
        margin-bottom: 50px;
    }

    .section-title {
        font-size: 24px;
        color: var(--primary-navy);
        border-left: 5px solid var(--safety-orange);
        padding-left: 15px;
        margin-bottom: 20px;
    }

    .table-responsive {
        overflow-x: auto;
        border: 1px solid var(--border-color);
        border-radius: 8px;
        margin-bottom: 20px;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        min-width: 600px;
        background: #fff;
    }

    th {
        background-color: var(--primary-navy);
        color: #fff;
        padding: 12px;
        text-align: left;
    }

    td {
        padding: 12px;
        border-bottom: 1px solid #eee;
        vertical-align: top;
    }

    /* Material Labels */
    .label-badge {
        display: inline-block;
        padding: 4px 8px;
        border-radius: 4px;
        color: #fff;
        font-size: 12px;
        font-weight: bold;
        margin-right: 5px;
    }
    .lbl-blue { background-color: #0066cc; }   /* Polyester */
    .lbl-green { background-color: #27ae60; }  /* Polyamide */
    .lbl-brown { background-color: #8d6e63; }  /* Polypropylene */

    /* --- 4. Guidelines Grid --- */
    .guide-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
    }

    .guide-card {
        background: #fff;
        padding: 20px;
        border-radius: 6px;
        border: 1px solid var(--border-color);
        box-shadow: 0 2px 5px rgba(0,0,0,0.03);
    }

    .guide-title {
        font-size: 18px;
        font-weight: 700;
        color: var(--primary-navy);
        margin-bottom: 15px;
        padding-bottom: 8px;
        border-bottom: 2px solid var(--safety-orange);
    }

    .guide-text {
        font-size: 14px;
        color: #555;
    }
    
    .guide-text ul {
        padding-left: 20px;
    }

    .warning-box {
        background-color: #fff3cd;
        color: #856404;
        padding: 10px;
        border-radius: 4px;
        font-size: 13px;
        margin-top: 10px;
        border-left: 4px solid #ffeeba;
    }