/* ===============================================
   UPLOAD-MODERN-OPTIMIZED.CSS - Mejoras UX Mobile-First para Demo
   =============================================== */

/* ===== VARIABLES CSS ===== */
:root {
    --upload-primary: #6366f1;
    --upload-success: #10b981;
    --upload-error: #ef4444;
    --upload-border: #e5e7eb;
    --upload-bg-subtle: #f8fafc;
    --upload-text-primary: #374151;
    --upload-text-secondary: #6b7280;
    
    /* Touch targets y espaciado mobile-first */
    --touch-target-min: 44px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
}

/* ===== CÓDIGO POSTAL OPTIMIZADO (Mobile-First) ===== */
.postal-section-side {
    position: relative;
    width: 100%;
}

.postal-label-side {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--upload-text-primary);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.postal-label-side i {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--upload-primary);
    font-size: 0.875rem;
}

.postal-input-wrapper-side {
    position: relative;
}

.postal-input-group-side {
    position: relative;
    display: flex;
    align-items: center;
}

/* Input código postal mobile-first optimizado */
.postal-input-side {
    width: 100%;
    height: var(--touch-target-min); /* 44px = touch target óptimo */
    padding: 0 var(--spacing-md);
    border: 2px solid var(--upload-border);
    border-radius: 12px;
    background: var(--upload-bg-subtle);
    font-size: 16px; /* Previene zoom en iOS */
    font-weight: 500;
    color: var(--upload-text-primary);
    text-align: center;
    box-sizing: border-box;
    transition: all 0.2s ease;
    
    /* Evitar line-height problemático */
    line-height: normal;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Estados interactivos */
.postal-input-side:focus {
    outline: none;
    border-color: var(--upload-primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.postal-input-side:hover {
    border-color: var(--upload-primary);
    background: white;
}

.postal-input-side.is-valid {
    border-color: var(--upload-success);
    background: rgba(16, 185, 129, 0.05);
    color: var(--upload-success);
}

.postal-input-side.is-invalid {
    border-color: var(--upload-error);
    background: rgba(239, 68, 68, 0.05);
    color: var(--upload-error);
}

.postal-input-side::placeholder {
    color: var(--upload-text-secondary);
    font-weight: 400;
}

/* Loader del código postal */
.postal-loader-side {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
}

.postal-loader-side .spinner-border-sm {
    width: 1.25rem;
    height: 1.25rem;
}

/* Feedback del código postal */
.postal-feedback-side {
    margin-top: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    text-align: center;
}

.postal-feedback-side.postal-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--upload-error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.postal-feedback-side i {
    margin-right: 0.25rem;
}

/* ===== ZONA DE UPLOAD OPTIMIZADA (Mobile-First) ===== */
.upload-container-side {
    width: 100%;
}

.upload-label-side {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--upload-text-primary);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.upload-label-side i {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--upload-primary);
    font-size: 0.875rem;
}

/* Upload zone mobile-friendly */
.upload-zone-side {
    min-height: var(--touch-target-min);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px dashed var(--upload-border);
    border-radius: 12px;
    background: var(--upload-bg-subtle);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-zone-side:hover {
    border-color: var(--upload-primary);
    background: rgba(99, 102, 241, 0.03);
    border-style: solid;
}

.upload-zone-side.dragover {
    border-color: var(--upload-success);
    background: rgba(16, 185, 129, 0.05);
    border-style: solid;
    transform: scale(1.01);
}

.upload-zone-side:focus {
    outline: none;
    border-color: var(--upload-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Upload content responsive */
.upload-content-side {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    text-align: center;
    width: 100%;
}

.upload-icon-side {
    font-size: 1.25rem;
    color: var(--upload-primary);
    flex-shrink: 0;
}

.upload-text-side {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.upload-title-side {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--upload-text-primary);
    line-height: 1.2;
}

.upload-subtitle-side {
    font-size: 0.75rem;
    color: var(--upload-text-secondary);
    line-height: 1.2;
}

/* ===== FILE PREVIEW OPTIMIZADO ===== */
.file-preview-side {
    position: relative;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    padding-right: 2rem; /* Espacio para el botón de eliminar */
    border: 2px solid var(--upload-success);
    border-radius: 12px;
    background: rgba(16, 185, 129, 0.05);
    transition: all 0.2s ease;
    min-height: var(--touch-target-min);
    display: flex;
    align-items: center;
}

.file-preview-side:hover {
    border-color: var(--upload-success);
    background: rgba(16, 185, 129, 0.08);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.15);
}

/* Container interno del file preview para mejor alineamiento */
.file-preview-side .d-flex {
    width: 100%;
    gap: var(--spacing-sm);
}

.file-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(16, 185, 129, 0.15);
    border-radius: 8px;
    flex-shrink: 0;
    margin-right: var(--spacing-sm);
}

.file-icon i {
    font-size: 1.1rem;
    color: var(--upload-success);
    font-weight: 600;
}

.file-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.125rem;
}

.file-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--upload-success);
    line-height: 1.2;
    word-break: break-word;
    margin: 0;
}

.file-size {
    font-size: 0.75rem;
    color: #059669;
    line-height: 1.2;
    margin: 0;
    font-weight: 500;
}

#removeFileBtn {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 20px;
    height: 20px;
    padding: 0;
    border: 1px solid #d1d5db;
    background: rgba(255, 255, 255, 0.9);
    color: #6b7280;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
    font-size: 0.7rem;
    font-weight: 400;
    opacity: 0.7;
    z-index: 5;
}

#removeFileBtn:hover {
    background: #f3f4f6;
    color: #374151;
    opacity: 1;
    transform: scale(1.1);
    border-color: #9ca3af;
}

#removeFileBtn:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(107, 114, 128, 0.1);
    opacity: 1;
}

/* ===== BOTÓN DE ACCIÓN OPTIMIZADO (Tercera Columna) ===== */
.action-section-side {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    height: var(--touch-target-min);
}

.action-btn-side {
    width: 100%;
    height: var(--touch-target-min);
    padding: 0 var(--spacing-sm);
    border: none;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}

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

.action-btn-primary:hover {
    background: #5856f0;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
    color: white;
}

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

.action-btn-primary:disabled {
    background: #94a3b8;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.8;
}

/* Transiciones suaves para iconos */
.action-btn-side i {
    transition: all 0.2s ease;
}

.action-btn-side .btn-text {
    transition: all 0.2s ease;
}

/* Estados de carga */
.action-btn-primary .btn-text,
.action-btn-primary .btn-loader {
    transition: opacity 0.2s ease;
}

.action-btn-primary .btn-loader {
    opacity: 0;
    position: absolute;
}

.action-btn-primary.loading .btn-text {
    opacity: 0;
}

.action-btn-primary.loading .btn-loader {
    opacity: 1;
    position: static;
}

/* ===== MEJORAS PARA TABLET Y DESKTOP ===== */

/* Tablet (768px+) */
@media (min-width: 768px) {
    .postal-input-side {
        height: 48px;
        font-size: 1rem;
    }
    
    .upload-zone-side {
        height: 48px;
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    .file-preview-side {
        height: 48px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .upload-content-side {
        gap: var(--spacing-md);
    }
    
    .upload-title-side {
        font-size: 0.9rem;
    }
    
    .upload-subtitle-side {
        font-size: 0.8rem;
    }
    
    .file-icon {
        width: 36px;
        height: 36px;
    }
    
    .file-icon i {
        font-size: 1.2rem;
    }
    
    .file-name {
        font-size: 0.9rem;
    }
    
    .file-size {
        font-size: 0.8rem;
    }
    
    #removeFileBtn {
        width: 22px;
        height: 22px;
        top: 8px;
        right: 8px;
        font-size: 0.75rem;
    }
    
    .action-section-side {
        height: 48px;
    }
    
    .action-btn-side {
        height: 48px;
        font-size: 0.9rem;
        padding: 0 var(--spacing-md);
    }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .postal-input-side {
        height: 52px;
        font-size: 1.1rem;
    }
    
    .upload-zone-side {
        height: 52px;
        padding: var(--spacing-sm) 2rem;
    }
    
    .file-preview-side {
        height: 52px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .upload-title-side {
        font-size: 0.95rem;
    }
    
    .upload-subtitle-side {
        font-size: 0.85rem;
    }
    
    .file-icon {
        width: 40px;
        height: 40px;
    }
    
    .file-icon i {
        font-size: 1.3rem;
    }
    
    .file-name {
        font-size: 0.95rem;
    }
    
    .file-size {
        font-size: 0.85rem;
    }
    
    #removeFileBtn {
        width: 24px;
        height: 24px;
        top: 10px;
        right: 10px;
        font-size: 0.8rem;
    }
    
    .action-section-side {
        height: 52px;
    }
    
    .action-btn-side {
        height: 52px;
        font-size: 1rem;
        padding: 0 var(--spacing-lg);
    }
    
    /* Efectos hover más sutiles en desktop */
    .postal-input-side:hover {
        transform: translateY(-1px);
        box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1);
    }
    
    .upload-zone-side:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(99, 102, 241, 0.1);
    }
    
    .file-preview-side:hover {
        transform: translateY(-1px);
    }
}

/* ===== UTILIDADES ===== */
.hidden {
    display: none !important;
}

/* ===== RESPONSIVE - OCULTAR LABELS EN MOBILE ===== */
@media (max-width: 767.98px) {
    .upload-label-side {
        display: none !important;
    }
    
    /* ===== REORDENAR PROCESSING SECTION EN MOBILE ===== */
    .processing-section .card-body {
        display: flex !important;
        flex-direction: column !important;
    }
    
    /* Barra de progreso primero */
    .processing-section .progress-container-horizontal {
        order: 1 !important;
        margin-bottom: 1.5rem !important;
    }
    
    /* Stats después - layout 2x2 en mobile */
    .processing-section .row.mb-4 {
        order: 2 !important;
        margin-bottom: 1rem !important;
    }
    
    /* Cambiar cada columna a 50% del ancho (2 columnas por fila) */
    .processing-section .row.mb-4 .col-md-3 {
        flex: 0 0 50% !important;
        max-width: 50% !important;
        padding: 0.5rem !important;
    }
    
    /* Hacer que todos los stat-items tengan la misma altura */
    .processing-section .stat-item {
        height: 80px !important;
        display: flex !important;
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
        text-align: center !important;
        padding: 0.5rem !important;
        box-sizing: border-box !important;
    }
    
    /* Optimizar textos para mobile */
    .processing-section .stat-number {
        font-size: 1.5rem !important;
        line-height: 1.2 !important;
        margin-bottom: 0.25rem !important;
    }
    
    .processing-section .stat-label {
        font-size: 0.75rem !important;
        line-height: 1.1 !important;
        max-width: 100% !important;
        word-wrap: break-word !important;
    }
    
    /* Resto de elementos mantienen orden natural */
    .processing-section #demoResultsTable {
        order: 3 !important;
    }
    
    .processing-section #demoDownloadSection {
        order: 4 !important;
    }
}

/* ===== ACCESIBILIDAD ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

/* Focus visible para navegación por teclado */
@media (any-hover: none) {
    .upload-zone-side:hover {
        border-color: var(--upload-border);
        background: var(--upload-bg-subtle);
        transform: none;
        box-shadow: none;
    }
}

/* ===== MOBILE CARDS LAYOUT PARA TABLAS ===== */
@media (max-width: 767.98px) {
    /* Variables específicas para cards */
    :root {
        --card-bg: #ffffff;
        --card-border: #e5e7eb;
        --card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
        --card-shadow-hover: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        --distance-bg: linear-gradient(135deg, #10b981, #059669);
        --distance-text: #ffffff;
        --label-color: #6b7280;
        --value-color: #111827;
        --border-color: #f3f4f6;
    }
    
    /* Ocultar tabla tradicional en mobile */
    #demoResultsTable .table-responsive-custom,
    #resultsSection .table-responsive-custom {
        display: none !important;
    }
    
    /* Crear contenedor de cards */
    #demoResultsTable .card-body,
    #resultsSection .card-body {
        padding: 0 !important;
    }
    
    /* Card container */
    .mobile-cards-container {
        display: flex !important;
        flex-direction: column !important;
        gap: 1rem !important;
        padding: 1rem !important;
    }
    
    /* Card individual */
    .mobile-card {
        background: var(--card-bg) !important;
        border: 1px solid var(--card-border) !important;
        border-radius: 12px !important;
        box-shadow: var(--card-shadow) !important;
        transition: all 0.2s ease !important;
        overflow: hidden !important;
        position: relative !important;
    }
    
    .mobile-card:hover {
        box-shadow: var(--card-shadow-hover) !important;
        transform: translateY(-1px) !important;
    }
    
    /* Header de la card con distancia prominente */
    .mobile-card-header {
        background: var(--distance-bg) !important;
        color: var(--distance-text) !important;
        padding: 1rem 1.25rem !important;
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
    }
    
    .mobile-card-distance {
        font-size: 1.5rem !important;
        font-weight: 700 !important;
        line-height: 1 !important;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1) !important;
    }
    
    .mobile-card-distance-label {
        font-size: 0.75rem !important;
        opacity: 0.9 !important;
        font-weight: 500 !important;
        margin-top: 2px !important;
    }
    
    .mobile-card-index {
        background: rgba(255, 255, 255, 0.2) !important;
        color: var(--distance-text) !important;
        padding: 0.25rem 0.5rem !important;
        border-radius: 6px !important;
        font-size: 0.75rem !important;
        font-weight: 600 !important;
    }
    
    /* Body de la card con información */
    .mobile-card-body {
        padding: 1.25rem !important;
        display: flex !important;
        flex-direction: column !important;
        gap: 1rem !important;
    }
    
    /* Título del centro prominente */
    .mobile-card-title {
        font-size: 1.1rem !important;
        font-weight: 600 !important;
        color: var(--value-color) !important;
        line-height: 1.3 !important;
        margin: 0 !important;
        word-wrap: break-word !important;
    }
    
    /* Grid de información */
    .mobile-card-info {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 1rem 0.75rem !important;
    }
    
    .mobile-card-info-item {
        display: flex !important;
        flex-direction: column !important;
        gap: 0.25rem !important;
    }
    
    .mobile-card-label {
        font-size: 0.75rem !important;
        font-weight: 500 !important;
        color: var(--label-color) !important;
        text-transform: uppercase !important;
        letter-spacing: 0.025em !important;
    }
    
    .mobile-card-value {
        font-size: 0.9rem !important;
        font-weight: 500 !important;
        color: var(--value-color) !important;
        line-height: 1.3 !important;
        word-wrap: break-word !important;
    }
    
    /* Perfil con estilo especial */
    .mobile-card-info-item.perfil {
        grid-column: 1 / -1 !important;
        padding-top: 0.75rem !important;
        border-top: 1px solid var(--border-color) !important;
    }
    
    .mobile-card-info-item.perfil .mobile-card-value {
        background: #f8fafc !important;
        padding: 0.5rem 0.75rem !important;
        border-radius: 6px !important;
        border: 1px solid #e2e8f0 !important;
        font-size: 0.85rem !important;
        font-style: italic !important;
        color: #475569 !important;
    }
    
    /* Estados especiales */
    .mobile-card.first {
        border-color: #10b981 !important;
        box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.1) !important;
    }
    
    .mobile-card.first::before {
        content: "🏆" !important;
        position: absolute !important;
        top: -8px !important;
        right: 12px !important;
        font-size: 1.25rem !important;
        z-index: 10 !important;
    }
    
    /* Loading y estados vacíos */
    .mobile-cards-loading {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        padding: 3rem 1rem !important;
        text-align: center !important;
    }
    
    .mobile-cards-loading i {
        font-size: 2rem !important;
        color: var(--label-color) !important;
        margin-bottom: 1rem !important;
    }
    
    .mobile-cards-loading h5 {
        font-size: 1.1rem !important;
        font-weight: 600 !important;
        color: var(--value-color) !important;
        margin-bottom: 0.5rem !important;
    }
    
    .mobile-cards-loading p {
        font-size: 0.9rem !important;
        color: var(--label-color) !important;
        margin: 0 !important;
    }
    
    /* Animaciones sutiles */
    @keyframes cardFadeIn {
        from {
            opacity: 0;
            transform: translateY(10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .mobile-card {
        animation: cardFadeIn 0.3s ease forwards !important;
    }
    
    .mobile-card:nth-child(1) { animation-delay: 0ms !important; }
    .mobile-card:nth-child(2) { animation-delay: 50ms !important; }
    .mobile-card:nth-child(3) { animation-delay: 100ms !important; }
    .mobile-card:nth-child(4) { animation-delay: 150ms !important; }
    .mobile-card:nth-child(5) { animation-delay: 200ms !important; }
    .mobile-card:nth-child(6) { animation-delay: 250ms !important; }
    .mobile-card:nth-child(7) { animation-delay: 300ms !important; }
    .mobile-card:nth-child(8) { animation-delay: 350ms !important; }
    .mobile-card:nth-child(9) { animation-delay: 400ms !important; }
    .mobile-card:nth-child(10) { animation-delay: 450ms !important; }
}