/* ==============================================
   PDF.js Viewer - Frontend Styles
   ============================================== */

/* Contenedor principal del visor */
.pdfjs-viewer-wrapper {
    margin: 20px 0;
    text-align: center;
    clear: both;
    position: relative;
}

/* Iframe del visor PDF */
.pdfjs-viewer-wrapper iframe {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: box-shadow 0.3s ease;
    background: #f8f9fa;
}

.pdfjs-viewer-wrapper iframe:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* Mensajes de error */
.pdfjs-error {
    margin: 20px 0;
}

.pdfjs-error p {
    border-left: 4px solid #dc3545;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

/* Loading placeholder */
.pdfjs-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 2px dashed #dee2e6;
    color: #6c757d;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
}

.pdfjs-loading::before {
    content: "🔄 ";
    font-size: 24px;
    margin-right: 10px;
    animation: spin 2s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Fallback styles */
.pdfjs-fallback {
    padding: 40px;
    text-align: center;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 8px;
    color: #721c24;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.pdfjs-fallback a {
    color: #0066cc;
    text-decoration: none;
    font-weight: bold;
}

.pdfjs-fallback a:hover {
    text-decoration: underline;
}

/* Mejoras para móviles */
@media (max-width: 768px) {
    .pdfjs-viewer-wrapper {
        margin: 15px 0;
    }
    
    .pdfjs-viewer-wrapper iframe {
        min-height: 500px;
        border-radius: 6px;
    }
    
    .pdfjs-error p {
        font-size: 13px;
        padding: 12px;
    }
}

/* Extra small screens (phones) */
@media (max-width: 480px) {
    .pdfjs-viewer-wrapper {
        margin: 10px -15px; /* Extend to edges on very small screens */
    }
    
    .pdfjs-viewer-wrapper iframe {
        border-radius: 0;
        width: calc(100% + 30px);
        margin-left: -15px;
        min-height: 450px;
    }
    
    .pdfjs-error {
        margin: 10px 15px;
    }
    
    .pdfjs-loading {
        margin: 0 -15px;
        border-radius: 0;
        font-size: 13px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .pdfjs-viewer-wrapper iframe {
        background: #2d2d2d;
        box-shadow: 0 4px 12px rgba(255,255,255,0.1);
    }
    
    .pdfjs-viewer-wrapper iframe:hover {
        box-shadow: 0 6px 20px rgba(255,255,255,0.15);
    }
    
    .pdfjs-loading {
        background: #2d2d2d;
        border-color: #495057;
        color: #adb5bd;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .pdfjs-viewer-wrapper iframe {
        border: 2px solid #000;
        box-shadow: none;
    }
    
    .pdfjs-error p {
        border-left-width: 6px;
        font-weight: bold;
    }
}

/* Print styles */
@media print {
    .pdfjs-viewer-wrapper {
        margin: 0;
        page-break-inside: avoid;
    }
    
    .pdfjs-viewer-wrapper iframe {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .pdfjs-error {
        display: none;
    }
}

/* Focus styles for accessibility */
.pdfjs-viewer-wrapper iframe:focus {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
}

/* RTL support */
[dir="rtl"] .pdfjs-viewer-wrapper {
    text-align: center; /* Keep centered for RTL */
}

[dir="rtl"] .pdfjs-error p {
    border-left: none;
    border-right: 4px solid #dc3545;
}

/* Custom scrollbar for WebKit browsers */
.pdfjs-viewer-wrapper iframe::-webkit-scrollbar {
    width: 12px;
}

.pdfjs-viewer-wrapper iframe::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 6px;
}

.pdfjs-viewer-wrapper iframe::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 6px;
}

.pdfjs-viewer-wrapper iframe::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Loading states */
.pdfjs-viewer-wrapper.loading iframe {
    opacity: 0.3;
    pointer-events: none;
}

.pdfjs-viewer-wrapper.loaded iframe {
    opacity: 1;
    transition: opacity 0.3s ease-in-out;
}

/* Error states */
.pdfjs-viewer-wrapper.error iframe {
    display: none;
}

.pdfjs-viewer-wrapper.error .pdfjs-loading {
    background: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

/* Responsive iframe sizing */
@media (min-width: 769px) {
    .pdfjs-viewer-wrapper iframe[width="100%"] {
        width: 100% !important;
        max-width: 1200px;
    }
}

/* Compatibility with popular themes */
.entry-content .pdfjs-viewer-wrapper,
.post-content .pdfjs-viewer-wrapper,
.page-content .pdfjs-viewer-wrapper {
    max-width: none;
    margin-left: auto;
    margin-right: auto;
}

/* Prevent theme conflicts */
.pdfjs-viewer-wrapper * {
    box-sizing: border-box;
}

.pdfjs-viewer-wrapper iframe {
    display: block;
    margin: 0 auto;
}

/* Mejorar selecci¨®n de texto en PDF.js */
.pdfjs-viewer-wrapper iframe {
    pointer-events: auto !important;
    user-select: text !important;
    -webkit-user-select: text !important;
    -moz-user-select: text !important;
    -ms-user-select: text !important;
}

/* Asegurar que la capa de texto sea seleccionable */
.textLayer {
    user-select: text !important;
    -webkit-user-select: text !important;
    cursor: text !important;
    pointer-events: auto !important;
    z-index: 2 !important;
}

/* Quitar interferencias de cursor */
.pdfjs-viewer-wrapper * {
    cursor: inherit !important;
}

/* Forzar cursor de texto en elementos de texto */
.textLayer > span {
    cursor: text !important;
    user-select: text !important;
    -webkit-user-select: text !important;
    pointer-events: auto !important;
}

/* Asegurar que el viewer permita selecci¨®n */
#viewer {
    user-select: text !important;
    -webkit-user-select: text !important;
}

/* Remover restricciones que puedan bloquear selecci¨®n */
.page {
    user-select: text !important;
    -webkit-user-select: text !important;
}

.canvasWrapper {
    pointer-events: none !important;
}

.textLayer {
    pointer-events: auto !important;
}