/**
 * PDF Viewer Styles
 * Version: 1.0.0
 */

/* Contenedor principal */
.pdfviewer-container {
    display: flex;
    flex-direction: column;
    border: 1px solid #d0d0d0;
    border-radius: 6px;
    background-color: #f8f8f8;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12),
                0 2px 4px rgba(0, 0, 0, 0.08);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    transition: box-shadow 0.3s ease;
}

.pdfviewer-container:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15),
                0 3px 6px rgba(0, 0, 0, 0.1);
}

/* Barra de herramientas */
.pdfviewer-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background-color: #fff;
    border-bottom: 1px solid #ddd;
    flex-wrap: wrap;
    gap: 8px;
}

.pdfviewer-navigation,
.pdfviewer-zoom,
.pdfviewer-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Botones */
.pdfviewer-btn {
    padding: 6px 12px;
    border: 1px solid #ccc;
    background-color: #fff;
    border-radius: 3px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
}

.pdfviewer-btn:hover {
    background-color: #f0f0f0;
    border-color: #999;
}

.pdfviewer-btn:active {
    background-color: #e0e0e0;
}

.pdfviewer-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pdfviewer-btn:disabled:hover {
    background-color: #fff;
    border-color: #ccc;
}

/* Información de página */
.pdfviewer-page-info {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0 8px;
    font-size: 14px;
    color: #333;
}

.pdfviewer-current-page {
    width: 50px;
    padding: 4px 6px;
    border: 1px solid #ccc;
    border-radius: 3px;
    text-align: center;
    font-size: 14px;
}

.pdfviewer-current-page:focus {
    outline: 2px solid #0073aa;
    outline-offset: 1px;
}

.pdfviewer-total-pages {
    font-weight: 500;
}

/* Nivel de zoom */
.pdfviewer-zoom-level {
    min-width: 50px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    color: #333;
}

/* Área de contenido del PDF */
.pdfviewer-content {
    flex: 1;
    position: relative;
    overflow: auto;
    background: linear-gradient(135deg, #434343 0%, #2c2c2c 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    min-height: 400px;
}

/* Canvas del PDF */
.pdfviewer-canvas {
    display: block;
    max-width: 100%;
    max-height: 100%;
    height: auto;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4),
                0 4px 8px rgba(0, 0, 0, 0.2);
    background-color: #fff;
    border-radius: 2px;
    transition: transform 0.2s ease;
}

.pdfviewer-canvas:hover {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5),
                0 6px 12px rgba(0, 0, 0, 0.3);
}

/* Spinner de carga */
.pdfviewer-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: #fff;
    font-size: 16px;
    z-index: 10;
}

.pdfviewer-container.loaded .pdfviewer-loading {
    display: none;
}

.pdfviewer-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: pdfviewer-spin 0.8s linear infinite;
}

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

/* Error */
.pdfviewer-error {
    padding: 20px;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    margin: 10px 0;
    font-size: 14px;
}

/* Pantalla completa */
.pdfviewer-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 999999;
    border-radius: 0;
    margin: 0;
}

.pdfviewer-container.fullscreen .pdfviewer-content {
    padding: 40px;
}

/* Responsive */
@media (max-width: 768px) {
    .pdfviewer-toolbar {
        padding: 6px 8px;
        gap: 4px;
    }

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

    .pdfviewer-page-info,
    .pdfviewer-zoom-level {
        font-size: 12px;
    }

    .pdfviewer-current-page {
        width: 40px;
        font-size: 12px;
    }

    .pdfviewer-content {
        padding: 10px;
    }

    /* Ocultar algunos controles en móviles */
    .pdfviewer-first-page,
    .pdfviewer-last-page,
    .pdfviewer-zoom-reset {
        display: none;
    }
}

@media (max-width: 480px) {
    .pdfviewer-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .pdfviewer-navigation,
    .pdfviewer-zoom,
    .pdfviewer-actions {
        justify-content: center;
        width: 100%;
    }
}

/* Accesibilidad */
.pdfviewer-btn:focus,
.pdfviewer-current-page:focus {
    outline: 2px solid #0073aa;
    outline-offset: 2px;
}

/* Modo oscuro */
@media (prefers-color-scheme: dark) {
    .pdfviewer-container {
        background-color: #1e1e1e;
        border-color: #444;
    }

    .pdfviewer-toolbar {
        background-color: #2d2d2d;
        border-bottom-color: #444;
    }

    .pdfviewer-btn {
        background-color: #3c3c3c;
        border-color: #555;
        color: #e0e0e0;
    }

    .pdfviewer-btn:hover {
        background-color: #4a4a4a;
        border-color: #666;
    }

    .pdfviewer-btn:active {
        background-color: #555;
    }

    .pdfviewer-current-page {
        background-color: #3c3c3c;
        border-color: #555;
        color: #e0e0e0;
    }

    .pdfviewer-page-info,
    .pdfviewer-zoom-level {
        color: #e0e0e0;
    }

    .pdfviewer-content {
        background-color: #2d2d2d;
    }
}

/* Animaciones suaves */
.pdfviewer-canvas {
    transition: opacity 0.3s ease;
}

.pdfviewer-container.loading .pdfviewer-canvas {
    opacity: 0.5;
}