/**
 * Edition Reader Modal Styles
 * Estilos modernos para el modal fullscreen del lector de ediciones
 */

/* Modal Container */
.reader-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.reader-modal.active {
    opacity: 1;
    visibility: visible;
}

/* Overlay con efecto blur */
.reader-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: fadeIn 0.3s ease;
}

/* Contenido del modal - Actualizado para StPageFlip */
.reader-modal-content {
    position: relative;
    width: 100%;
    height: 100%;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
}

/* Contenedor del flipbook - debe estar visible */
#flipbook-container {
    position: relative;
    width: 100%;
    height: 100%;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

#flipbook-container.stf__parent {
    position: relative !important;
}

/* Botón cerrar */
.reader-close {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.reader-close:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.reader-close:active {
    transform: rotate(90deg) scale(0.95);
}

/* Loading State */
.reader-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    z-index: 2;
}

.reader-loading p {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* Loading Spinner */
.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: #4a90e2;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* Iframe del lector */
.reader-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
    z-index: 1;
}

.reader-iframe.loaded {
    opacity: 1;
    pointer-events: all;
}

/* Estilos para el botón Leer */
.btn-reader {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.btn-reader i {
    transition: transform 0.3s ease;
}

.btn-reader:hover i {
    transform: scale(1.2) rotate(5deg);
}

.btn-reader::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-reader:hover::before {
    width: 300px;
    height: 300px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .reader-close {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    .reader-loading p {
        font-size: 1rem;
    }

    .loading-spinner {
        width: 50px;
        height: 50px;
    }
}

/* Accesibilidad - Focus states */
.reader-close:focus-visible {
    outline: 2px solid #4a90e2;
    outline-offset: 4px;
}

.btn-reader:focus-visible {
    outline: 2px solid #4a90e2;
    outline-offset: 2px;
}

/* Prevenir selección de texto durante interacciones */
.reader-modal-overlay,
.reader-close {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* Animación de entrada del modal */
@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.reader-modal.active .reader-modal-content {
    animation: modalSlideIn 0.3s ease;
}

/* Mejoras de rendimiento */
.reader-modal {
    will-change: opacity, visibility;
}

.reader-iframe {
    will-change: opacity;
}

/* Dark mode support (si el navegador lo soporta) */
@media (prefers-color-scheme: dark) {
    .reader-modal-overlay {
        background: rgba(0, 0, 0, 0.95);
    }
}

/* Reducir movimiento para usuarios con preferencias de accesibilidad */
@media (prefers-reduced-motion: reduce) {

    .reader-modal,
    .reader-close,
    .reader-iframe,
    .btn-reader,
    .btn-reader::before,
    .loading-spinner {
        animation: none !important;
        transition: none !important;
    }
}