/* View-specific styles - Dashboard, catalog, book details */

/* Dashboard Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-left: 4px solid var(--dark-green);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.stat-card.gold {
    border-left-color: var(--gold);
}

.stat-card.navy {
    border-left-color: var(--navy);
}

.stat-card.green {
    border-left-color: var(--medium-green);
}

.stat-label {
    font-size: 14px;
    color: var(--dark-gray);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark-green);
}

.stat-icon {
    font-size: 40px;
    opacity: 0.2;
    float: right;
}

/* Book Grid */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.book-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.book-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.book-cover {
    width: 100%;
    height: 260px;
    background: linear-gradient(135deg, var(--dark-green), var(--navy));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 60px;
    position: relative;
}

.book-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--gold);
    color: var(--white);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
}

.book-info {
    padding: 16px;
}

.book-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark-green);
    margin-bottom: 6px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-author {
    font-size: 13px;
    color: var(--dark-gray);
    margin-bottom: 8px;
}

.book-category {
    font-size: 12px;
    color: var(--white);
    background: var(--navy);
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
}

.book-actions {
    padding: 12px 16px;
    border-top: 1px solid var(--light-gray);
    display: flex;
    gap: 8px;
    justify-content: space-between;
}

/* Book Detail */
.book-detail-grid {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 30px;
}

.book-detail-cover {
    width: 100%;
    height: 350px;
    background: linear-gradient(135deg, var(--dark-green), var(--navy));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 80px;
    margin-bottom: 12px;
}

.book-detail-file-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 12px;
    background: var(--light-gray);
    border-radius: 6px;
}

.book-detail-file-info small {
    font-size: 11px;
    color: var(--dark-gray);
    word-break: break-all;
}

.book-detail-info h2 {
    color: var(--dark-green);
    font-size: 24px;
    margin-bottom: 8px;
}

.book-detail-author {
    font-size: 16px;
    margin-bottom: 16px;
}

.book-detail-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin: 20px 0;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-label {
    font-size: 12px;
    color: var(--dark-gray);
    font-weight: 600;
}

.meta-value {
    font-size: 14px;
    color: var(--text-dark);
}

.book-detail-tags {
    margin: 16px 0;
}

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.tag {
    background: var(--navy);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    display: inline-block;
}

.book-description {
    line-height: 1.8;
    color: var(--text-dark);
    margin: 20px 0;
}

.book-detail-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
}

/* Document Viewer */
.document-viewer-body {
    padding: 0;
    height: calc(90vh - 140px);
    display: flex;
    flex-direction: column;
}

.document-viewer-container {
    flex: 1;
    background: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    position: relative;
}

.document-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.document-viewer-placeholder {
    text-align: center;
    padding: 40px;
    max-width: 600px;
}

.document-placeholder-icon {
    font-size: 80px;
    margin-bottom: 20px;
    opacity: 0.3;
}

.document-viewer-placeholder h3 {
    color: var(--dark-green);
    font-size: 24px;
    margin-bottom: 12px;
}

.document-viewer-placeholder p {
    color: var(--dark-gray);
    margin-bottom: 8px;
}

.document-filename {
    font-size: 16px;
    color: var(--dark-green);
    margin: 16px 0;
}

.document-info {
    font-style: italic;
    font-size: 14px;
}

.document-viewer-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    background: var(--white);
}
/* Visor institucional PDF.js */
.institutional-pdf-reader {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    width: 100%;
    background: #e8ecea;
}

.pdf-reader-shell {
    height: 100%;
    min-height: 0;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.pdf-reader-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #0b2f24, #123f32);
    color: #fff;
    border-bottom: 2px solid rgba(212, 175, 55, 0.45);
    flex-wrap: wrap;
}

.pdf-toolbar-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pdf-toolbar-group-right {
    margin-left: auto;
}

.pdf-tool-btn {
    border: 1px solid rgba(255, 255, 255, 0.24);
    background: rgba(255, 255, 255, 0.09);
    color: #ffffff;
    min-width: 36px;
    height: 34px;
    padding: 0 12px;
    border-radius: 9px;
    cursor: pointer;
    font-weight: 700;
    transition: all 0.2s ease;
}

.pdf-tool-btn:hover:not(:disabled) {
    background: rgba(212, 175, 55, 0.24);
    border-color: rgba(212, 175, 55, 0.75);
}

.pdf-tool-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.pdf-tool-text {
    min-width: auto;
    font-size: 0.85rem;
}

.pdf-page-status,
.pdf-zoom-status,
.pdf-download-disabled {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.92);
    white-space: nowrap;
}

.pdf-download-disabled {
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    padding: 7px 12px;
    background: rgba(255, 255, 255, 0.08);
}

.pdf-reader-title {
    padding: 10px 18px;
    background: #ffffff;
    color: var(--dark-green);
    font-weight: 700;
    border-bottom: 1px solid var(--gray);
}

.pdf-reader-stage {
    flex: 1;
    min-height: 0;
    overflow: auto;
    padding: 28px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 24px;
    background:
        radial-gradient(circle at top, rgba(212, 175, 55, 0.12), transparent 34%),
        linear-gradient(180deg, #eef2f0, #dce3df);
}

.pdf-page-wrap {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.pdf-page-canvas {
    background: #ffffff;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
    border-radius: 4px;
}

.document-viewer-note {
    flex: 1;
    color: var(--dark-gray);
    font-size: 0.9rem;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .pdf-reader-toolbar {
        align-items: flex-start;
    }

    .pdf-toolbar-group-right {
        margin-left: 0;
        width: 100%;
    }

    .pdf-reader-stage {
        padding: 16px;
        justify-content: flex-start;
    }

    .pdf-page-wrap-secondary {
        display: none !important;
    }
}

/* Mejoras v14: pantalla completa del visor PDF */
.pdf-reader-body-locked {
    overflow: hidden;
}

.pdf-reader-shell.pdf-reader-fullscreen {
    position: fixed;
    inset: 0;
    z-index: 99999;
    height: 100vh;
    width: 100vw;
    background: #0b2f24;
}

.pdf-reader-shell.pdf-reader-fullscreen .pdf-reader-toolbar {
    padding: 14px 22px;
    position: sticky;
    top: 0;
    z-index: 3;
}

.pdf-reader-shell.pdf-reader-fullscreen .pdf-reader-title {
    padding: 12px 24px;
}

.pdf-reader-shell.pdf-reader-fullscreen .pdf-reader-stage {
    padding: 34px;
    height: calc(100vh - 112px);
}

.pdf-reader-shell:fullscreen {
    background: #0b2f24;
}

.pdf-reader-shell:fullscreen .pdf-reader-stage {
    height: calc(100vh - 112px);
}

@media (max-width: 768px) {
    .pdf-reader-shell.pdf-reader-fullscreen .pdf-reader-stage {
        padding: 14px;
        height: calc(100vh - 150px);
    }
}

/* Mejoras v14: buscador inteligente para asignar material a grupos */
.group-assignment-box {
    border: 1px solid rgba(11, 47, 36, 0.12);
    background: linear-gradient(180deg, #ffffff, #f8faf9);
}

.group-box-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.group-book-filters {
    display: grid;
    grid-template-columns: minmax(240px, 1.8fr) repeat(3, minmax(150px, 1fr));
    gap: 12px;
    margin-bottom: 14px;
}

.group-book-selector-row {
    display: grid;
    grid-template-columns: minmax(280px, 1.35fr) minmax(220px, 0.85fr);
    gap: 16px;
    align-items: stretch;
}

.group-book-select-wrapper {
    margin-bottom: 0;
}

.group-book-select {
    min-height: 190px;
    padding: 8px;
    background: #ffffff;
    line-height: 1.45;
}

.group-book-select option {
    padding: 8px;
    border-radius: 6px;
    margin-bottom: 2px;
}

.group-book-selected-preview {
    border: 1px solid rgba(212, 175, 55, 0.45);
    border-radius: 12px;
    padding: 16px;
    background: rgba(212, 175, 55, 0.08);
    color: var(--dark-gray);
    min-height: 150px;
}

.group-book-selected-preview strong {
    display: block;
    color: var(--dark-green);
    margin-bottom: 8px;
}

.group-book-result-count {
    display: block;
    margin-top: 7px;
}

.modal-footer-inline {
    margin-top: 14px;
    justify-content: flex-end;
}

.compact-list-spaced {
    margin-top: 18px;
}

@media (max-width: 1100px) {
    .group-book-filters {
        grid-template-columns: 1fr 1fr;
    }

    .group-book-selector-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .group-book-filters {
        grid-template-columns: 1fr;
    }
}