/* Visor de PDF Mejorado - Estilos Profesionales */

.enhanced-pdf-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: enhancedFadeIn 0.3s ease-out;
}

.enhanced-pdf-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.enhanced-pdf-container {
    position: relative;
    width: 98%;
    height: 98%;
    max-width: 1400px;
    background: #1e1e1e;
    border-radius: 12px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: enhancedSlideIn 0.4s ease-out;
    border: 1px solid #333;
}

/* Header */
.enhanced-pdf-header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    padding: 12px 20px;
    border-bottom: 1px solid #444;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.enhanced-pdf-title-section {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.enhanced-pdf-title {
    color: #ecf0f1;
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.enhanced-pdf-title i {
    color: #e74c3c;
    font-size: 20px;
}

.enhanced-pdf-subtitle {
    color: #bdc3c7;
    font-size: 12px;
    font-weight: 400;
}

.enhanced-pdf-toolbar {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

/* Grupos de controles */
.enhanced-pdf-nav-group,
.enhanced-pdf-zoom-group,
.enhanced-pdf-search-group,
.enhanced-pdf-tools-group {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Botones */
.enhanced-pdf-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ecf0f1;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    position: relative;
    overflow: hidden;
}

.enhanced-pdf-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

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

.enhanced-pdf-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.enhanced-pdf-btn.enhanced-pdf-close {
    background: rgba(231, 76, 60, 0.2);
    border-color: rgba(231, 76, 60, 0.3);
    color: #e74c3c;
}

.enhanced-pdf-btn.enhanced-pdf-close:hover {
    background: rgba(231, 76, 60, 0.3);
    border-color: rgba(231, 76, 60, 0.4);
}

.enhanced-pdf-btn-sm {
    padding: 4px 8px;
    min-width: 28px;
    height: 28px;
    font-size: 12px;
}

.enhanced-pdf-btn-primary {
    background: linear-gradient(135deg, #3498db, #2980b9);
    border-color: #2980b9;
    color: white;
    padding: 10px 20px;
    font-weight: 600;
}

.enhanced-pdf-btn-primary:hover {
    background: linear-gradient(135deg, #2980b9, #1f5f8b);
}

/* Input de página */
.enhanced-pdf-page-input {
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    padding: 4px 8px;
}

.enhanced-pdf-page-input input {
    background: transparent;
    border: none;
    color: #ecf0f1;
    width: 50px;
    text-align: center;
    font-size: 14px;
    outline: none;
}

.enhanced-pdf-page-input input::-webkit-outer-spin-button,
.enhanced-pdf-page-input input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.enhanced-pdf-page-input input[type=number] {
    -moz-appearance: textfield;
}

/* Select de zoom */
.enhanced-pdf-select {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ecf0f1;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    outline: none;
    min-width: 100px;
}

.enhanced-pdf-select:hover {
    background: rgba(255, 255, 255, 0.15);
}

.enhanced-pdf-select option {
    background: #2c3e50;
    color: #ecf0f1;
}

/* Búsqueda */
.enhanced-pdf-search-input {
    position: relative;
    display: flex;
    align-items: center;
}

.enhanced-pdf-search-input input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ecf0f1;
    padding: 8px 40px 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    width: 200px;
    transition: all 0.2s ease;
}

.enhanced-pdf-search-input input:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.enhanced-pdf-search-input input::placeholder {
    color: #95a5a6;
}

.enhanced-pdf-search-btn {
    position: absolute;
    right: 4px;
    background: transparent;
    border: none;
    color: #bdc3c7;
    padding: 6px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.enhanced-pdf-search-btn:hover {
    color: #3498db;
    background: rgba(52, 152, 219, 0.1);
}

.enhanced-pdf-search-results {
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.2);
    border-radius: 6px;
    padding: 4px 8px;
}

.enhanced-pdf-search-info {
    color: #3498db;
    font-size: 12px;
    font-weight: 500;
    min-width: 40px;
    text-align: center;
}

/* Contenido principal */
.enhanced-pdf-main {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* Sidebar de miniaturas */
.enhanced-pdf-sidebar {
    width: 200px;
    background: #2c2c2c;
    border-right: 1px solid #444;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.enhanced-pdf-sidebar-header {
    padding: 15px;
    border-bottom: 1px solid #444;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.enhanced-pdf-sidebar-header h4 {
    color: #ecf0f1;
    font-size: 14px;
    font-weight: 600;
    margin: 0;
}

.enhanced-pdf-thumbnails-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.enhanced-pdf-thumbnails-loading {
    color: #bdc3c7;
    text-align: center;
    padding: 20px;
    font-size: 14px;
}

.enhanced-pdf-thumbnail {
    margin-bottom: 10px;
    border: 2px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.enhanced-pdf-thumbnail:hover {
    border-color: #3498db;
    transform: scale(1.02);
}

.enhanced-pdf-thumbnail.active {
    border-color: #e74c3c;
    box-shadow: 0 0 10px rgba(231, 76, 60, 0.3);
}

.enhanced-pdf-thumbnail canvas {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.enhanced-pdf-thumbnail-number {
    position: absolute;
    bottom: 4px;
    right: 4px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
}

/* Área de visualización */
.enhanced-pdf-viewer-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #1a1a1a;
    position: relative;
    overflow: hidden;
}

.enhanced-pdf-canvas-container {
    width: 100%;
    height: 100%;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    cursor: grab;
    position: relative;
}

.enhanced-pdf-canvas-container:active {
    cursor: grabbing;
}

.enhanced-pdf-canvas {
    max-width: 100%;
    max-height: 100%;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
    border-radius: 8px;
    background: white;
    transition: transform 0.2s ease;
}

.enhanced-pdf-text-layer {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
    opacity: 0;
}

/* Estados de carga y error */
.enhanced-pdf-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #ecf0f1;
    font-size: 16px;
    text-align: center;
    padding: 40px;
}

.enhanced-pdf-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-left: 4px solid #3498db;
    border-radius: 50%;
    animation: enhancedSpin 1s linear infinite;
    margin-bottom: 20px;
}

.enhanced-pdf-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 15px;
}

.enhanced-pdf-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #3498db, #2980b9);
    border-radius: 2px;
    transition: width 0.3s ease;
    width: 0%;
}

.enhanced-pdf-error {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #e74c3c;
    font-size: 16px;
    text-align: center;
    padding: 40px;
}

.enhanced-pdf-error-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.enhanced-pdf-error-content i {
    font-size: 48px;
    opacity: 0.7;
}

.enhanced-pdf-error-content h3 {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
}

.enhanced-pdf-error-content p {
    margin: 0;
    color: #bdc3c7;
    max-width: 400px;
}

/* Footer */
.enhanced-pdf-footer {
    background: #2c2c2c;
    border-top: 1px solid #444;
    padding: 8px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: #95a5a6;
}

.enhanced-pdf-info {
    font-weight: 500;
}

.enhanced-pdf-shortcuts {
    font-style: italic;
}

/* Notificaciones */
.enhanced-pdf-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #2c3e50, #34495e);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 10001;
    animation: enhancedSlideInRight 0.3s ease-out;
    border-left: 4px solid #3498db;
}

/* Animaciones */
@keyframes enhancedFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes enhancedSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes enhancedSlideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes enhancedSpin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Pantalla completa */
.enhanced-pdf-modal:fullscreen {
    background: #000;
}

.enhanced-pdf-modal:fullscreen .enhanced-pdf-container {
    width: 100%;
    height: 100%;
    max-width: none;
    border-radius: 0;
    border: none;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .enhanced-pdf-sidebar {
        width: 180px;
    }
    
    .enhanced-pdf-search-input input {
        width: 150px;
    }
}

@media (max-width: 992px) {
    .enhanced-pdf-container {
        width: 100%;
        height: 100%;
        border-radius: 0;
    }
    
    .enhanced-pdf-header {
        padding: 10px 15px;
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .enhanced-pdf-toolbar {
        justify-content: center;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .enhanced-pdf-nav-group,
    .enhanced-pdf-zoom-group,
    .enhanced-pdf-search-group,
    .enhanced-pdf-tools-group {
        gap: 4px;
        padding: 4px;
    }
    
    .enhanced-pdf-sidebar {
        width: 150px;
    }
}

@media (max-width: 768px) {
    .enhanced-pdf-main {
        flex-direction: column;
    }
    
    .enhanced-pdf-sidebar {
        width: 100%;
        height: 120px;
        border-right: none;
        border-bottom: 1px solid #444;
    }
    
    .enhanced-pdf-thumbnails-list {
        display: flex;
        overflow-x: auto;
        overflow-y: hidden;
        padding: 10px;
        gap: 10px;
    }
    
    .enhanced-pdf-thumbnail {
        flex-shrink: 0;
        width: 80px;
        margin-bottom: 0;
    }
    
    .enhanced-pdf-btn {
        padding: 6px 10px;
        min-width: 32px;
        height: 32px;
        font-size: 12px;
    }
    
    .enhanced-pdf-search-input input {
        width: 120px;
        padding: 6px 30px 6px 10px;
    }
    
    .enhanced-pdf-footer {
        flex-direction: column;
        gap: 5px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .enhanced-pdf-header {
        padding: 8px 10px;
    }
    
    .enhanced-pdf-title {
        font-size: 16px;
    }
    
    .enhanced-pdf-toolbar {
        gap: 5px;
    }
    
    .enhanced-pdf-nav-group,
    .enhanced-pdf-zoom-group,
    .enhanced-pdf-tools-group {
        flex-wrap: wrap;
    }
    
    .enhanced-pdf-search-group {
        width: 100%;
        justify-content: center;
    }
    
    .enhanced-pdf-search-input input {
        width: 100px;
    }
    
    .enhanced-pdf-canvas-container {
        padding: 10px;
    }
}

/* Mejoras de accesibilidad */
.enhanced-pdf-btn:focus,
.enhanced-pdf-select:focus,
.enhanced-pdf-search-input input:focus {
    outline: 2px solid #3498db;
    outline-offset: 2px;
}

.enhanced-pdf-modal[aria-hidden="true"] {
    display: none;
}

/* Efectos hover mejorados */
.enhanced-pdf-btn {
    position: relative;
    overflow: hidden;
}

.enhanced-pdf-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.enhanced-pdf-btn:hover::before {
    width: 100px;
    height: 100px;
}

/* Scrollbars personalizados */
.enhanced-pdf-thumbnails-list::-webkit-scrollbar,
.enhanced-pdf-canvas-container::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.enhanced-pdf-thumbnails-list::-webkit-scrollbar-track,
.enhanced-pdf-canvas-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.enhanced-pdf-thumbnails-list::-webkit-scrollbar-thumb,
.enhanced-pdf-canvas-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.enhanced-pdf-thumbnails-list::-webkit-scrollbar-thumb:hover,
.enhanced-pdf-canvas-container::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Estados de carga específicos */
.enhanced-pdf-loading.initial {
    background: radial-gradient(circle, rgba(52, 73, 94, 0.1) 0%, transparent 70%);
}

/* Transiciones suaves para todos los elementos */
* {
    transition: all 0.2s ease;
}

.enhanced-pdf-btn,
.enhanced-pdf-canvas,
.enhanced-pdf-thumbnail {
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}