/* --- Basic Styles --- */
    :root {
        /* H-Lift Industrial Theme */
        --primary-color: #003366; /* Navy Blue */
        --accent-color: #e67e23; /* Safety Orange */
        --bg-light: #f4f7f6;
        --border-color: #e0e0e0;
        --text-dark: #333;
        --text-light: #555;
    }

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

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

    /* --- Header Section --- */
    .page-header {
        border-bottom: 4px solid var(--primary-color);
        padding-bottom: 20px;
        margin-bottom: 40px;
        text-align: center;
    }

    .page-header h1 {
        color: var(--primary-color);
        font-size: 32px;
        margin: 0 0 10px 0;
    }

    /* --- Sling Grid Layout --- */
    .sling-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 30px;
        margin-bottom: 50px;
    }

    .sling-card {
        background: #fff;
        border: 1px solid var(--border-color);
        border-radius: 8px;
        overflow: hidden;
        transition: box-shadow 0.3s ease;
        display: flex;
        flex-direction: column;
    }

    .sling-card:hover {
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        border-color: var(--accent-color);
    }

    .card-header {
        background: var(--bg-light);
        padding: 15px 20px;
        border-bottom: 1px solid var(--border-color);
    }

    .card-header h3 {
        margin: 0;
        color: var(--primary-color);
        font-size: 20px;
    }

    .card-body {
        padding: 20px;
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .card-body img {
        max-width: 100%;
        height: auto;
        max-height: 200px;
        margin-bottom: 20px;
        border-radius: 4px;
    }

    .card-body p {
        font-size: 15px;
        color: var(--text-light);
        margin: 0;
        text-align: left;
        width: 100%;
    }

    /* --- Measurement Section --- */
    .measure-section {
        background: var(--bg-light);
        padding: 40px;
        border-radius: 8px;
        text-align: center;
        border: 1px solid var(--border-color);
    }

    .measure-section h2 {
        color: var(--primary-color);
        margin-top: 0;
        margin-bottom: 20px;
        font-size: 24px;
        border-bottom: 2px solid var(--accent-color);
        display: inline-block;
        padding-bottom: 5px;
    }

    .measure-section img {
        max-width: 100%;
        height: auto;
        border: 1px solid #ccc;
        background: #fff;
        padding: 10px;
        border-radius: 4px;
    }

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