.calc-input-error {
    border-color: #e74c3c !important;
}

.calc-remove {
    background: none;
    border: 1px solid #ccc;
    color: #999;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    transition: all 0.2s;
}

.calc-remove:hover {
    border-color: #e74c3c;
    color: #e74c3c;
}











.calc-presets {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
}

.calc-preset {
    padding: 6px 14px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 20px;
    color: #666;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
}

.calc-preset:hover,
.calc-preset.active {
    border-color: #0d8059;
    color: #0d8059;
    background: #f0faf5;
}









.margin-low {
    background: #f0faf5;
    border: 2px solid #2ecc71;
}
.margin-low .calc-summary-value { color: #1a9a5a; }

.margin-medium {
    background: #fdf8ef;
    border: 2px solid #e6951e;
}
.margin-medium .calc-summary-value { color: #c07b10; }

.margin-high {
    background: #fdf0f0;
    border: 2px solid #e74c3c;
}
.margin-high .calc-summary-value { color: #c0392b; }













.bk-margin-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}

.bk-margin-table th {
    background: #f5f5f5;
    padding: 10px;
    text-align: left;
    color: #666;
    font-size: 12px;
    font-weight: 600;
    border-bottom: 2px solid #ddd;
}

.bk-margin-table td {
    padding: 8px 10px;
    border-bottom: 1px solid #eee;
    color: #333;
    font-size: 13px;
}

.bk-margin-table tr:hover td {
    background: #f9f9f9;
}

.bk-margin-table .margin-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: bold;
}

.bk-margin-table .margin-badge.low {
    background: #e8f8f0;
    color: #1a9a5a;
}

.bk-margin-table .margin-badge.medium {
    background: #fef5e7;
    color: #c07b10;
}

.bk-margin-table .margin-badge.high {
    background: #fde8e8;
    color: #c0392b;
}

.formula-block {
    background: #f8f8f8;
    border-left: 3px solid #0d8059;
    padding: 15px 20px;
    margin: 15px 0;
    border-radius: 0 6px 6px 0;
    font-family: 'Courier New', monospace;
}

.formula-block .formula {
    font-size: 16px;
    color: #0d8059;
    margin: 8px 0;
}



.calc-infobox dt {
    color: #888;
    font-size: 12px;
    margin-top: 10px;
}

.calc-infobox dt:first-child { margin-top: 0; }

.calc-infobox dd {
    color: #333;
    font-size: 14px;
    margin: 2px 0 0 0;
}

@media (max-width: 600px) {
    
    
    .calc-input {
        max-width: 100%;
    }
    
    
    .bk-table th,
    .bk-table td {
        padding: 6px 4px;
    }
}