/* ============================================
   SIMULADOR V4 - UNA PANTALLA SIMPLIFICADA
   ============================================ */

:root {
    --primary-color: #0066cc;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --info-color: #3498db;
    --light-bg: #f5f7fa;
    --border-color: #ddd;
    --text-color: #333;
    --text-light: #666;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --spacing: 1rem;
}

* {
    box-sizing: border-box;
}

.deficfra-simulator-v4 {
    font-family: var(--font-family);
    color: var(--text-color);
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* ============================================
   HEADER
   ============================================ */

.simulator-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--primary-color);
}

.simulator-header h1 {
    font-size: 2em;
    margin: 0 0 10px 0;
    color: var(--primary-color);
}

.simulator-header p {
    font-size: 1em;
    color: var(--text-light);
    margin: 0;
}

/* ============================================
   FORMULARIO
   ============================================ */

.simulator-form-v4 {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Contenedor de 3 columnas */
.form-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 20px;
}

.form-column {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.column-title {
    font-size: 1.2em;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 10px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--light-bg);
}

/* ============================================
   FORM GROUPS
   ============================================ */

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-weight: 500;
    font-size: 0.95em;
    color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group select {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1em;
    font-family: var(--font-family);
    transition: border-color 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="tel"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.required {
    color: var(--danger-color);
    font-weight: bold;
}

/* ============================================
   PRICE INPUT
   ============================================ */

.price-input {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.price-input:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.price-input .currency {
    padding: 10px 12px;
    background: var(--light-bg);
    font-weight: 600;
    color: var(--text-color);
    border-right: 1px solid var(--border-color);
}

.price-input input {
    flex: 1;
    border: none;
    padding: 10px 12px;
    font-size: 1em;
    font-family: var(--font-family);
}

.price-input input:focus {
    outline: none;
}

/* Estilos de select para tipo de vehículo */
#vehicle_type {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1em;
    font-family: var(--font-family);
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

#vehicle_type:hover {
    border-color: var(--primary-color);
}

#vehicle_type:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

/* ============================================
   RADIO GROUPS
   ============================================ */

.radio-group-inline {
    display: flex;
    gap: 15px;
}

.radio-option {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.radio-option input[type="radio"] {
    margin-right: 6px;
    cursor: pointer;
    width: 18px;
    height: 18px;
}

.radio-option span {
    font-size: 0.95em;
}

/* ============================================
   CHECKBOX GROUPS
   ============================================ */

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checkbox-option {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    padding: 10px;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.checkbox-option:hover {
    background: var(--light-bg);
}

.checkbox-option input[type="checkbox"] {
    margin-right: 10px;
    margin-top: 2px;
    cursor: pointer;
    width: 18px;
    height: 18px;
}

.checkbox-option span {
    flex: 1;
    font-size: 0.95em;
}

/* ============================================
   VALIDATION SECTION
   ============================================ */

.validation-section {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 6px;
    border-left: 4px solid var(--primary-color);
}

.validation-section h2 {
    font-size: 1.1em;
    margin: 0 0 15px 0;
    color: var(--primary-color);
}

/* ============================================
   RESULTS SECTION
   ============================================ */

.results-section {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 6px;
    border-top: 4px solid var(--success-color);
}

.result-card h2 {
    font-size: 1.3em;
    color: var(--success-color);
    margin: 0 0 20px 0;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.result-item {
    background: white;
    padding: 15px;
    border-radius: 4px;
    border-left: 4px solid var(--border-color);
    transition: all 0.3s ease;
}

.result-item.highlight {
    border-left-color: var(--success-color);
    background: rgba(39, 174, 96, 0.05);
}

.result-item label {
    display: block;
    font-size: 0.85em;
    color: var(--text-light);
    margin-bottom: 5px;
    font-weight: 500;
}

.result-value {
    display: block;
    font-size: 1.3em;
    font-weight: 700;
    color: var(--primary-color);
}

.result-item.highlight .result-value {
    color: var(--success-color);
}

/* ============================================
   PREVALIDATION BOX
   ============================================ */

.prevalidation-box {
    margin-top: 20px;
    padding: 15px;
    border-radius: 4px;
    font-size: 0.95em;
    line-height: 1.6;
}

.prevalidation-box.apto {
    background: rgba(39, 174, 96, 0.1);
    border-left: 4px solid var(--success-color);
    color: var(--success-color);
}

.prevalidation-box.no-apto {
    background: rgba(231, 76, 60, 0.1);
    border-left: 4px solid var(--danger-color);
    color: var(--danger-color);
}

.prevalidation-box.pendiente {
    background: rgba(243, 156, 18, 0.1);
    border-left: 4px solid var(--warning-color);
    color: var(--warning-color);
}

/* ============================================
   BUTTONS
   ============================================ */

.button-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 4px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-family);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #0052a3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--border-color);
    color: var(--text-color);
}

.btn-secondary:hover {
    background: #bbb;
    transform: translateY(-2px);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .deficfra-simulator-v4 {
        padding: 15px;
    }
    
    .simulator-header h1 {
        font-size: 1.5em;
    }
    
    .form-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .result-grid {
        grid-template-columns: 1fr;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

/* ============================================
   LOADING STATE
   ============================================ */

.btn.loading {
    opacity: 0.7;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-left: 8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   ERROR MESSAGES
   ============================================ */

.error-message {
    color: var(--danger-color);
    font-size: 0.85em;
    margin-top: 4px;
    display: none;
}

.form-group.error .error-message {
    display: block;
}

.form-group.error input,
.form-group.error select {
    border-color: var(--danger-color);
    background: rgba(231, 76, 60, 0.05);
}