/**
 * Enhanced Forms CSS - Estilos para formularios mejorados
 * Incluye validación visual, progress indicators y estados de carga
 */

/* Form Field Wrappers */
.form-field-wrapper {
    position: relative;
    margin-bottom: 1rem;
}

.field-status-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    font-weight: bold;
    pointer-events: none;
    z-index: 2;
}

.form-field-wrapper.field-valid .field-status-icon {
    color: var(--success-color, #28a745);
}

.form-field-wrapper.field-invalid .field-status-icon {
    color: var(--danger-color, #dc3545);
}

.form-field-wrapper.field-valid .form-control {
    border-color: var(--success-color, #28a745);
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

.form-field-wrapper.field-invalid .form-control {
    border-color: var(--danger-color, #dc3545);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

/* Field Messages */
.field-message {
    font-size: 0.875rem;
    margin-top: 0.25rem;
    min-height: 1.2em;
    color: var(--danger-color, #dc3545);
    transition: opacity 0.2s ease;
}

.field-message:empty {
    opacity: 0;
}

/* Form Progress Indicator */
.form-progress-indicator {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 0.5rem;
    border: 1px solid #e9ecef;
}

.form-progress-indicator .progress-bar {
    width: 100%;
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.form-progress-indicator .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color, #007bff), #0056b3);
    border-radius: 4px;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.form-progress-indicator .progress-fill::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 2s infinite;
}

.form-progress-indicator .progress-text {
    font-size: 0.875rem;
    color: #666;
    font-weight: 500;
    text-align: center;
}

/* Auto-save Indicator */
.autosave-indicator {
    position: absolute;
    top: -30px;
    right: 0;
    background: var(--success-color, #28a745);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
    display: none;
    animation: fadeInOut 2s ease;
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0; transform: translateY(-5px); }
    20%, 80% { opacity: 1; transform: translateY(0); }
}

/* Form Loading States */
.form-loading {
    position: relative;
    pointer-events: none;
}

.form-loading .form-control,
.form-loading .btn {
    opacity: 0.7;
}

.form-loading::before {
    content: 'Procesando...';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 123, 255, 0.95);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Enhanced Form Controls */
.form-control {
    transition: all 0.2s ease;
    padding-right: 2.5rem; /* Espacio para el icono de estado */
}

.form-control:focus {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.15);
}

/* Form Groups con mejoras visuales */
.form-group {
    position: relative;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

.form-label .required-indicator {
    color: var(--danger-color, #dc3545);
    font-size: 0.875rem;
}

.form-label .help-icon {
    font-size: 0.875rem;
    color: #6c757d;
    cursor: help;
    border: 1px solid currentColor;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.form-label .help-icon:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #333;
    color: white;
    padding: 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    white-space: nowrap;
    z-index: 1000;
    margin-bottom: 5px;
}

/* Input Groups */
.input-group {
    display: flex;
    align-items: stretch;
    width: 100%;
}

.input-group .form-control {
    border-radius: 0;
    flex: 1;
}

.input-group .form-control:first-child {
    border-top-left-radius: var(--border-radius, 0.375rem);
    border-bottom-left-radius: var(--border-radius, 0.375rem);
}

.input-group .form-control:last-child {
    border-top-right-radius: var(--border-radius, 0.375rem);
    border-bottom-right-radius: var(--border-radius, 0.375rem);
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: #f8f9fa;
    border: 1px solid #ced4da;
    border-left: 0;
    color: #6c757d;
    font-size: 0.875rem;
    font-weight: 500;
}

.input-group-text:last-child {
    border-top-right-radius: var(--border-radius, 0.375rem);
    border-bottom-right-radius: var(--border-radius, 0.375rem);
}

/* Toggle Switches */
.form-switch {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    user-select: none;
}

.form-switch input[type="checkbox"] {
    position: relative;
    appearance: none;
    width: 48px;
    height: 24px;
    background: #ced4da;
    border-radius: 12px;
    transition: background-color 0.2s ease;
    cursor: pointer;
}

.form-switch input[type="checkbox"]:checked {
    background: var(--primary-color, #007bff);
}

.form-switch input[type="checkbox"]::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.form-switch input[type="checkbox"]:checked::before {
    transform: translateX(24px);
}

/* File Upload Enhanced */
.file-upload-wrapper {
    position: relative;
    display: inline-block;
    width: 100%;
}

.file-upload-input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-upload-display {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    border: 2px dashed #ced4da;
    border-radius: var(--border-radius, 0.375rem);
    background: #f8f9fa;
    color: #6c757d;
    text-align: center;
    transition: all 0.2s ease;
    cursor: pointer;
}

.file-upload-display:hover {
    border-color: var(--primary-color, #007bff);
    background: rgba(0, 123, 255, 0.05);
}

.file-upload-display.drag-over {
    border-color: var(--primary-color, #007bff);
    background: rgba(0, 123, 255, 0.1);
    transform: scale(1.02);
}

.file-upload-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    opacity: 0.6;
}

.file-upload-text {
    font-weight: 500;
}

.file-upload-hint {
    font-size: 0.875rem;
    opacity: 0.7;
    margin-top: 0.25rem;
}

/* Multi-step Forms */
.form-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding: 0;
    list-style: none;
}

.form-step {
    flex: 1;
    display: flex;
    align-items: center;
    text-align: center;
    position: relative;
}

.form-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -50%;
    width: 100%;
    height: 2px;
    background: #e9ecef;
    z-index: -1;
}

.form-step.completed::after {
    background: var(--success-color, #28a745);
}

.form-step-indicator {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #e9ecef;
    color: #6c757d;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin: 0 auto 0.5rem;
    position: relative;
    z-index: 1;
}

.form-step.active .form-step-indicator {
    background: var(--primary-color, #007bff);
    color: white;
}

.form-step.completed .form-step-indicator {
    background: var(--success-color, #28a745);
    color: white;
}

.form-step-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: #6c757d;
}

.form-step.active .form-step-label {
    color: var(--primary-color, #007bff);
}

.form-step.completed .form-step-label {
    color: var(--success-color, #28a745);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .form-steps {
        flex-direction: column;
        gap: 1rem;
    }
    
    .form-step::after {
        display: none;
    }
    
    .form-step {
        flex-direction: row;
        text-align: left;
        gap: 1rem;
    }
    
    .form-step-indicator {
        margin: 0;
        flex-shrink: 0;
    }
    
    .file-upload-display {
        padding: 1.5rem;
    }
    
    .file-upload-icon {
        font-size: 1.5rem;
    }
    
    .form-progress-indicator {
        padding: 0.75rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .form-progress-indicator {
        background: #2d3748;
        border-color: #4a5568;
        color: #e2e8f0;
    }
    
    .form-progress-indicator .progress-text {
        color: #a0aec0;
    }
    
    .form-label {
        color: #e2e8f0;
    }
    
    .field-message {
        color: #fc8181;
    }
    
    .file-upload-display {
        background: #2d3748;
        border-color: #4a5568;
        color: #a0aec0;
    }
    
    .file-upload-display:hover {
        background: rgba(66, 153, 225, 0.1);
    }
    
    .form-step-indicator {
        background: #4a5568;
        color: #a0aec0;
    }
    
    .form-step-label {
        color: #a0aec0;
    }
}