/* Concrete Cost Estimator Styles - DIY/Construction Theme */
.calcufacil-concrete_cost_estimator_calculator.calcufacil-container {
    max-width: 900px; margin: 20px auto; background: #fff; padding: 20px;
    border-radius: 8px; box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    display: flex; flex-wrap: wrap; gap: 30px; font-family: Arial, sans-serif;
}
.calcufacil-concrete_cost_estimator_calculator h3 {
    width: 100%; text-align: center; color: #808080; /* Gray */
    margin-bottom: 20px; font-size: 24px;
}
.calcufacil-concrete_cost_estimator_calculator .calcufacil-left,
.calcufacil-concrete_cost_estimator_calculator .calcufacil-right {
    flex: 1; min-width: 300px;
}
/* Form */
.calcufacil-concrete_cost_estimator_calculator .calculator-form h2 { font-size: 20px; color: #696969; /* DimGray */ margin-bottom: 15px; }
.calcufacil-concrete_cost_estimator_calculator fieldset { border: 1px solid #e0e0e0; padding: 15px 20px; border-radius: 6px; margin-bottom: 20px; }
.calcufacil-concrete_cost_estimator_calculator legend { font-weight: bold; color: #495057; padding: 0 10px; font-size: 16px; }
.calcufacil-concrete_cost_estimator_calculator .input-group { margin-bottom: 15px; }
.calcufacil-concrete_cost_estimator_calculator label { display: block; font-weight: bold; color: #333; margin-bottom: 5px; font-size: 13px; }
.calcufacil-concrete_cost_estimator_calculator .inline-group { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 15px; }
.calcufacil-concrete_cost_estimator_calculator .labor-group { gap: 20px; } /* More space for labor inputs */
.calcufacil-concrete_cost_estimator_calculator .inline-inputs { display: flex; gap: 10px; align-items: center; }
.calcufacil-concrete_cost_estimator_calculator .inline-inputs input { flex-grow: 1; width: auto; }
.calcufacil-concrete_cost_estimator_calculator .inline-inputs select { flex-shrink: 0; width: auto; padding-right: 25px; }

.calcufacil-concrete_cost_estimator_calculator input[type="number"],
.calcufacil-concrete_cost_estimator_calculator select {
    width: 100%; padding: 9px; border: 1px solid #ccc; border-radius: 4px;
    box-sizing: border-box; font-size: 15px; background: #f9f9f9;
}
.calcufacil-concrete_cost_estimator_calculator select {
    appearance: none; -webkit-appearance: none; -moz-appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23696969%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat; background-position: right 10px top 50%; background-size: 10px auto;
    padding-right: 30px;
}
.calcufacil-concrete_cost_estimator_calculator button {
    background-color: #A9A9A9; /* DarkGray */ color: #fff; padding: 12px 20px; border: none; border-radius: 4px;
    cursor: pointer; font-size: 16px; width: 100%; transition: background-color 0.3s ease; margin-top: 10px;
}
.calcufacil-concrete_cost_estimator_calculator button:hover { background-color: #696969; }
.calcufacil-concrete_cost_estimator_calculator .formula-note { font-size: 11px; color: #666; margin-top: 15px; text-align: center; font-style: italic; background: #f5f5f5; padding: 5px; border-radius: 3px; line-height: 1.3;}
/* Results */
.calcufacil-concrete_cost_estimator_calculator .results { background: #f5f5f5; padding: 25px; border-radius: 8px; border: 1px solid #e0e0e0; }
.calcufacil-concrete_cost_estimator_calculator .results-header { text-align: center; margin-bottom: 20px; }
.calcufacil-concrete_cost_estimator_calculator .results-header h2 { font-size: 20px; color: #696969; margin: 0; }
.calcufacil-concrete_cost_estimator_calculator .results-breakdown { display: flex; flex-direction: column; gap: 10px; margin-bottom: 15px; }
.calcufacil-concrete_cost_estimator_calculator .breakdown-item {
    padding: 10px 15px; background: #fff; border-radius: 4px; font-size: 14px; color: #333;
    border-left: 3px solid #A9A9A9; display: flex; justify-content: space-between; align-items: center;
}
.calcufacil-concrete_cost_estimator_calculator .breakdown-item span:last-child { font-weight: bold; color: #696969; text-align: right; font-size: 1.1em; }
.calcufacil-concrete_cost_estimator_calculator .breakdown-item.main-result { background-color: #e0e0e0; padding: 15px; font-weight: bold; border-left-color: #696969; }
.calcufacil-concrete_cost_estimator_calculator .breakdown-item.main-result span:first-child { font-size: 16px; }
.calcufacil-concrete_cost_estimator_calculator .breakdown-item.main-result span:last-child { font-size: 1.8em; color: #333; }

.calcufacil-concrete_cost_estimator_calculator .note { font-size: 12px; color: #555; text-align: center; margin-top: 15px; font-style: italic; line-height: 1.4; }
.calcufacil-concrete_cost_estimator_calculator .errors { color: #721c24; background-color: #f8d7da; border: 1px solid #f5c6cb; padding: 10px 15px; border-radius: 4px; margin-top: 15px; }
.calcufacil-concrete_cost_estimator_calculator .errors ul { list-style: none; padding: 0; margin: 0; }
.calcufacil-concrete_cost_estimator_calculator .errors li { margin-bottom: 5px; }
.calcufacil-concrete_cost_estimator_calculator .errors li:last-child { margin-bottom: 0; }