/* Price Per Unit Calculator Styles - Adapted (Single Column) */
.calcufacil-price_per_unit_calculator.calcufacil-container.no-flex {
    display: block; /* Override flex for single column */
    max-width: 700px; /* Narrower for focused comparison */
    margin: 20px auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    font-family: Arial, sans-serif;
}
.calcufacil-price_per_unit_calculator .calcufacil-left,
.calcufacil-price_per_unit_calculator .calcufacil-right { display: none; } /* Hide base columns */

.calcufacil-price_per_unit_calculator h3 { /* Plugin Title */
    width: 100%; text-align: center; color: #20c997; /* Teal - Shopping/Value */
    margin-bottom: 20px; font-size: 24px;
}

/* Form Area */
.calcufacil-price_per_unit_calculator .calculator-form h2 {
    font-size: 20px; color: #1aa080; /* Darker Teal */ margin-bottom: 20px; text-align: center;
}
.calcufacil-price_per_unit_calculator .item-comparison-row {
    display: flex;
    gap: 25px;
    margin-bottom: 25px;
    flex-wrap: wrap; /* Allow stacking on mobile */
}
.calcufacil-price_per_unit_calculator .item-column {
    flex: 1;
    min-width: 200px; /* Min width before wrapping */
    background: #f8f9fa;
    padding: 20px;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}
.calcufacil-price_per_unit_calculator .item-column h4 {
    margin-top: 0; margin-bottom: 15px; text-align: center; color: #1aa080;
}

.calcufacil-price_per_unit_calculator .input-group { margin-bottom: 15px; }
.calcufacil-price_per_unit_calculator label {
    display: block; font-weight: bold; color: #333; margin-bottom: 5px; font-size: 13px; /* Smaller labels */
}
.calcufacil-price_per_unit_calculator input[type="number"],
.calcufacil-price_per_unit_calculator input[type="text"] {
    width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px;
    box-sizing: border-box; font-size: 15px; background: #fff; /* White inputs */
}
.calcufacil-price_per_unit_calculator input::placeholder { font-size: 12px; color: #888; }

.calcufacil-price_per_unit_calculator button {
    background-color: #28a745; /* Green for Compare/Go */
    color: #fff; padding: 12px 25px; border: none; border-radius: 4px; cursor: pointer;
    font-size: 16px; display: block; margin: 0 auto; /* Center button */
    transition: background-color 0.3s ease; font-weight: bold;
}
.calcufacil-price_per_unit_calculator button:hover { background-color: #218838; }

/* Results Styling */
.calcufacil-price_per_unit_calculator .results.ppu-results {
    background: #e6fff7; /* Light Mint Green */ padding: 20px; border-radius: 8px;
    border: 1px solid #b3f0d9; margin-top: 25px;
}
.calcufacil-price_per_unit_calculator .results .initial-message { text-align: center; color: #555; font-style: italic; }

.calcufacil-price_per_unit_calculator .ppu-summary-row {
    display: flex; gap: 20px; margin-bottom: 20px; flex-wrap: wrap;
}
.calcufacil-price_per_unit_calculator .ppu-item-result {
    flex: 1; min-width: 180px; background: #fff; padding: 15px; border-radius: 6px;
    text-align: center; border: 2px solid #dee2e6; transition: border-color 0.3s ease;
}
.calcufacil-price_per_unit_calculator .ppu-item-result h5 {
    margin-top: 0; margin-bottom: 8px; color: #495057; font-size: 15px;
}
.calcufacil-price_per_unit_calculator .ppu-value {
    font-size: 1.6em; font-weight: bold; color: #1aa080; /* Darker Teal */ margin-bottom: 5px;
}
.calcufacil-price_per_unit_calculator .ppu-item-result small {
    font-size: 11px; color: #6c757d; display: block;
}
/* Highlight best/worse */
.calcufacil-price_per_unit_calculator .ppu-item-result.best {
    border-color: #28a745; /* Green border */
}
.calcufacil-price_per_unit_calculator .ppu-item-result.worse {
    border-color: #dc3545; /* Red border */
}
.calcufacil-price_per_unit_calculator .ppu-item-result.best .ppu-value { color: #218838; }
.calcufacil-price_per_unit_calculator .ppu-item-result.worse .ppu-value { color: #c82333; }

.calcufacil-price_per_unit_calculator .ppu-conclusion {
    text-align: center; padding: 15px; border-radius: 4px; margin-top: 10px; font-size: 16px;
}
.calcufacil-price_per_unit_calculator .ppu-conclusion p { margin: 0; }
.calcufacil-price_per_unit_calculator .ppu-conclusion i { margin-right: 8px; }
.calcufacil-price_per_unit_calculator .ppu-conclusion p.best {
    background-color: #d4edda; color: #155724; border: 1px solid #c3e6cb;
}
.calcufacil-price_per_unit_calculator .ppu-conclusion p.warning {
    background-color: #fff3cd; color: #856404; border: 1px solid #ffeeba;
}

.calcufacil-price_per_unit_calculator .note {
    font-size: 12px; color: #555; text-align: center; margin-top: 15px; font-style: italic;
}
.calcufacil-price_per_unit_calculator .errors {
    color: #721c24; background-color: #f8d7da; border: 1px solid #f5c6cb;
    padding: 10px 15px; border-radius: 4px; margin-top: 15px;
}
.calcufacil-price_per_unit_calculator .errors ul { list-style: none; padding: 0; margin: 0; }
.calcufacil-price_per_unit_calculator .errors li { margin-bottom: 5px; }
.calcufacil-price_per_unit_calculator .errors li:last-child { margin-bottom: 0; }