/* --- Mass Converter Tool --- */
.mass-converter-tool-container-sweden {
    --primary-color: #004f8b; 
    --secondary-color: #e3f2fd;
    --background-color: #ffffff;
    --text-color: #333;
    --border-color: #d1d9e0;
    --accent-color: #ffc107;
    --font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    
    font-family: var(--font-family);
    background-color: var(--background-color);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    max-width: 700px;
    margin: 20px auto;
    color: var(--text-color);
    overflow: hidden;
}

.mass-converter-tool-container-sweden .converter-header {
    text-align: left;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.mass-converter-tool-container-sweden .converter-header h3 {
    margin: 0 0 5px 0;
    color: var(--primary-color);
    font-size: 1.6rem;
}

.mass-converter-tool-container-sweden .converter-header p {
    margin: 0;
    font-size: 0.95rem;
    color: #555;
}

.mass-converter-tool-container-sweden .input-group {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.mass-converter-tool-container-sweden .input-field {
    flex: 1;
    min-width: 200px;
}

.mass-converter-tool-container-sweden .input-field label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    color: #444;
}

.mass-converter-tool-container-sweden .input-field input,
.mass-converter-tool-container-sweden .input-field select {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: #f8f9fa;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.mass-converter-tool-container-sweden .input-field input:focus,
.mass-converter-tool-container-sweden .input-field select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 79, 139, 0.15);
}

.mass-converter-tool-container-sweden .tooltip-trigger {
    cursor: help;
    position: relative;
    display: inline-block;
}

.mass-converter-tool-container-sweden .tooltip-text {
    visibility: hidden;
    width: 200px;
    background-color: #555;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 8px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.85rem;
    font-weight: normal;
}

.mass-converter-tool-container-sweden .tooltip-trigger:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

.mass-converter-tool-container-sweden .results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.mass-converter-tool-container-sweden .result-card {
    background-color: #f8f9fa;
    border: 1px solid var(--border-color);
    border-left: 5px solid var(--primary-color);
    border-radius: 8px;
    padding: 15px;
}

.mass-converter-tool-container-sweden .result-card.imperial { border-left-color: #28a745; }
.mass-converter-tool-container-sweden .result-card.historical { border-left-color: #fd7e14; }

.mass-converter-tool-container-sweden .result-card .card-header {
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 0.95rem;
    color: #333;
}

.mass-converter-tool-container-sweden .result-card .card-body p {
    margin: 4px 0;
    font-size: 0.9rem;
}

.mass-converter-tool-container-sweden .result-card strong {
    font-size: 1.1rem;
    color: #000;
}

.mass-converter-tool-container-sweden h4 {
    color: var(--primary-color);
    margin-top: 20px;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.mass-converter-tool-container-sweden .visual-section,
.mass-converter-tool-container-sweden .insight-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.mass-converter-tool-container-sweden .chart-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mass-converter-tool-container-sweden .chart-bar-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mass-converter-tool-container-sweden .bar-label {
    flex-basis: 70px;
    text-align: right;
    font-size: 0.85rem;
}

.mass-converter-tool-container-sweden .bar-wrapper {
    flex-grow: 1;
    background-color: #e9ecef;
    border-radius: 4px;
    height: 24px;
}

.mass-converter-tool-container-sweden .bar {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #b3d4ec, var(--primary-color));
    border-radius: 4px;
    transition: width 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.mass-converter-tool-container-sweden .bar-value {
    flex-basis: 100px;
    font-size: 0.85rem;
    font-weight: bold;
}

.mass-converter-tool-container-sweden .insight-results-container {
    background-color: var(--secondary-color);
    border-radius: 8px;
    padding: 15px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.mass-converter-tool-container-sweden .insight-results-container p {
    margin: 5px 0;
}
.mass-converter-tool-container-sweden .insight-results-container strong {
    color: var(--primary-color);
}

table {
            border-collapse: collapse;
            width: 100%;
            margin: 20px 0;
        }
        th, td {
            border: 1px solid #ddd;
            padding: 8px;
            text-align: left;
        }
        th {
            background-color: #f2f2f2;
        }
        tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        .note {
            background-color: #e7f3fe;
            padding: 15px;
            border-left: 6px solid #2196F3;
            margin: 20px 0;
        }