/* Global Resets & Base Styles */
:root {
    --primary-color: #0073aa; /* WordPress Blue */
    --primary-hover-color: #005a87;
    --secondary-color: #4CAF50; /* A pleasant green for optimal choices */
    --text-color: #333;
    --label-color: #555;
    --border-color: #ddd;
    --light-border-color: #eee;
    --background-color: #f9f9f9;
    --container-background: #fff;
    --error-color: #d9534f; /* A common error red */
    --success-color: var(--secondary-color);
    --font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    --border-radius: 6px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

body.uwo-calculator-page { 
    background-color: #eef1f5; 
}

.uwo-calculator-container {
    max-width: 780px; /* Slightly wider for two-column price inputs */
    margin: 30px auto;
    padding: 25px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--container-background);
    font-family: var(--font-family);
    box-shadow: var(--box-shadow);
}

.uwo-calculator-container h2 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: 1.8em;
    border-bottom: 1px solid var(--light-border-color);
    padding-bottom: 15px;
}

/* Form Styling */
.uwo-calculator-form fieldset {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 15px 20px;
    margin-bottom: 20px;
}

.uwo-calculator-form legend {
    font-weight: bold;
    color: var(--primary-color);
    padding: 0 10px;
    font-size: 1.2em;
}

.uwo-calculator-form .form-group {
    margin-bottom: 18px;
}

.uwo-calculator-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--label-color);
    font-size: 0.95em;
}

.uwo-calculator-form input[type="number"],
.uwo-calculator-form select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-sizing: border-box;
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    font-size: 1em;
}

.uwo-calculator-form input[type="number"]:focus,
.uwo-calculator-form select:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 115, 170, 0.2);
}

/* Level Inputs Layout */
.uwo-calculator-form .level-inputs {
    display: flex;
    flex-direction: column; /* Stack rows vertically */
    gap: 0px; /* Remove gap between rows if not desired, or set to e.g., 10px */
}

.uwo-calculator-form .level-row {
    display: grid;
    grid-template-columns: 1fr 1fr; /* Two equal columns */
    gap: 15px; /* Gap between items in a row */
    margin-bottom: 10px; /* Space between Attack and Defense rows */
}
.uwo-calculator-form .level-row:last-child {
    margin-bottom: 0;
}


/* Price Inputs Layout */
.uwo-calculator-form .price-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); /* Adjusted minmax for potentially wider content */
    gap: 20px 15px; /* row-gap column-gap */
}
.uwo-calculator-form .price-disclaimer {
    font-size: 0.85em;
    color: #777;
    margin-top: -10px;
    margin-bottom: 15px;
}
.uwo-calculator-form .form-group small {
    display: block;
    font-size: 0.8em;
    color: #777;
    margin-top: 5px;
}

/* Price Input Helper Span */
.input-price-helper {
    display: block; 
    font-size: 0.85em;
    color: var(--primary-color); 
    margin-top: 4px;
    height: 1.2em; /* Reserve space to prevent layout shifts */
    font-style: italic;
}


.uwo-calculator-form button[type="submit"] {
    background-color: var(--primary-color);
    color: white;
    padding: 14px 25px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    width: 100%;
    margin-top: 15px;
    transition: background-color 0.2s ease-in-out;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.uwo-calculator-form button[type="submit"]:hover {
    background-color: var(--primary-hover-color);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* Results Styling */
#uwo-calculator-results {
    margin-top: 35px;
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: #fdfdfd; 
}

#uwo-calculator-results h3 {
    margin-top: 0;
    color: var(--primary-color);
    border-bottom: 1px solid var(--light-border-color);
    padding-bottom: 12px;
    margin-bottom: 20px;
    font-size: 1.5em;
}
#uwo-calculator-results h4 {
    color: var(--text-color);
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 1.2em;
}

#uwo-calculator-results p {
    margin: 10px 0;
    line-height: 1.7;
    color: var(--text-color);
}
#uwo-calculator-results strong { 
    color: var(--primary-color); 
    font-weight: 600;
}

#uwo-calculator-results .error {
    color: var(--error-color);
    font-weight: bold;
    padding: 10px;
    background-color: rgba(217, 83, 79, 0.1);
    border-left: 4px solid var(--error-color);
    border-radius: var(--border-radius);
}
.calculating-message {
    color: var(--primary-color);
    font-style: italic;
}

#uwo-calculator-results .method-details {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px dashed var(--light-border-color);
}
#uwo-calculator-results .method-details:last-child {
    border-bottom: none;
    margin-bottom: 0; 
}
#uwo-calculator-results .method-details p {
    margin-left: 10px; 
}
#uwo-calculator-results .method-details p strong { 
     display: block; 
     margin-bottom: 5px;
}
#uwo-calculator-results .method-details br + * { 
    margin-left: 15px; 
    display: inline-block; 
}


#uwo-calculator-results .total-cost-summary {
    font-weight: bold;
    font-size: 1.2em;
    margin-top: 25px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    color: var(--primary-color);
}
#uwo-calculator-results .optimal-choice {
    color: var(--success-color);
    font-weight: bold;
    margin-top: 10px;
    padding: 8px;
    background-color: rgba(76, 175, 80, 0.08);
    border-left: 4px solid var(--success-color);
    border-radius: var(--border-radius);
}
.price-missing {
    color: var(--error-color);
    font-style: italic;
}


/* Guide Styling */
.uwo-calculator-guide {
    margin-top: 30px;
    padding: 20px;
    background-color: #f5f7fa; 
    border: 1px solid #dae1e7;
    border-radius: var(--border-radius);
}
.uwo-calculator-guide h3 {
    color: var(--primary-color);
    margin-top: 0;
    border-bottom: 1px solid var(--light-border-color);
    padding-bottom: 10px;
    margin-bottom: 15px;
}
.uwo-calculator-guide h4 {
    color: var(--text-color);
    margin-top: 15px;
    margin-bottom: 8px;
}
.uwo-calculator-guide ul, .uwo-calculator-guide ol {
    margin-left: 20px;
    padding-left: 15px;
    line-height: 1.6;
}
.uwo-calculator-guide li {
    margin-bottom: 8px;
}