/* ============================================================================
   Document Viewer — Togo Réformes
   Inspiré des meilleurs viewers PDF modernes : interface sobre, miniatures
   latérales, barre d'outils flottante et navigation tactile.
   ========================================================================== */

.doc-viewer-app {
    --doc-bg: #F5F7FA;
    --doc-surface: #FFFFFF;
    --doc-border: #E4E7EC;
    --doc-muted: #6B7280;
    --doc-primary: #1e5f8e;
    --doc-primary-soft: rgba(30, 95, 142, 0.08);
    --doc-radius: 16px;
    --doc-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.06);
    --doc-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
}

.doc-viewer-app {
    background: var(--doc-bg);
    border-radius: var(--doc-radius);
    border: 1px solid var(--doc-border);
    overflow: hidden;
}

/* Toolbar au-dessus du viewer */
.doc-toolbar-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 22px;
    background: var(--doc-surface);
    border-bottom: 1px solid var(--doc-border);
    position: relative;
    z-index: 20;
}

.doc-toolbar-left {
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
    flex: 1;
}

.doc-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #111827;
    margin: 0;
    line-height: 1.4;
    letter-spacing: -0.01em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.doc-toolbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.doc-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 10px;
    border: 1px solid var(--doc-border);
    background: var(--doc-surface);
    color: #374151;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.doc-action-btn:hover {
    background: var(--doc-primary-soft);
    border-color: var(--doc-primary);
    color: var(--doc-primary);
}

.doc-action-btn--like.is-liked {
    background: rgba(220, 38, 38, 0.08);
    border-color: rgba(220, 38, 38, 0.25);
    color: #DC2626;
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.12);
}

.doc-action-btn--like.just-liked {
    animation: docHeartPulse 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes docHeartPulse {
    0% { transform: scale(1); }
    25% { transform: scale(1.25); }
    50% { transform: scale(0.95); }
    100% { transform: scale(1); }
}

.doc-action-btn__count {
    font-variant-numeric: tabular-nums;
    font-weight: 600;
}

.doc-toolbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.btn-download-elegant {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #1e5f8e 0%, #164c7a 100%);
    color: #FFFFFF;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
    white-space: nowrap;
}

.btn-download-elegant:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(30, 95, 142, 0.18);
    color: #FFFFFF;
}

/* Viewer body */
.doc-viewer-body {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 16px;
    padding-top: 16px;
    align-items: start;
}

.doc-thumbnails {
    background: var(--doc-surface);
    border-right: 1px solid var(--doc-border);
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
    height: auto;
    max-height: none;
}

.doc-thumbnails-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
    overflow-y: auto;
    padding-right: 4px;
}

.doc-thumbnails-nav {
    display: flex;
    gap: 8px;
    justify-content: center;
    padding-top: 8px;
    flex-shrink: 0;
}

.doc-thumb {
    border: 2px solid transparent;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--doc-bg);
    position: relative;
    flex-shrink: 0;
    padding: 10px 10px 26px 10px;
    font-size: 0.75rem;
    line-height: 1.5;
    color: #374151;
    max-height: 220px;
    overflow: hidden;
}

.doc-thumb:hover {
    border-color: var(--doc-primary);
    box-shadow: var(--doc-shadow-hover);
    transform: translateY(-1px);
}

.doc-thumb.active {
    border-color: var(--doc-primary);
    box-shadow: 0 0 0 3px var(--doc-primary-soft), var(--doc-shadow-hover);
}

.doc-thumb canvas {
    display: none;
}

.doc-thumb-label {
    position: absolute;
    top: 6px;
    left: 6px;
    background: rgba(0, 0, 0, 0.65);
    color: #FFFFFF;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
    backdrop-filter: blur(4px);
    z-index: 2;
}

.doc-thumb-text {
    display: block;
    padding-top: 18px;
    max-height: 170px;
    overflow: hidden;
}

.doc-thumbnails-nav {
    display: flex;
    gap: 8px;
    justify-content: center;
    padding-top: 8px;
    position: sticky;
    bottom: 0;
    background: var(--doc-surface);
    padding-bottom: 4px;
}

.doc-thumb-nav-btn {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid var(--doc-border);
    background: var(--doc-surface);
    color: #374151;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.doc-thumb-nav-btn:hover {
    background: var(--doc-primary-soft);
    border-color: var(--doc-primary);
    color: var(--doc-primary);
}

.doc-main {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #E5E7EB;
    padding: 24px;
}

.doc-pdf-container {
    position: relative;
    width: 100%;
    max-width: 900px;
    background: var(--doc-surface);
    border-radius: var(--doc-radius);
    box-shadow: var(--doc-shadow);
    overflow: hidden;
    min-height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.doc-pdf-canvas {
    max-width: 100%;
    height: auto;
    display: block;
}

.doc-pdf-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--doc-surface);
    z-index: 2;
}

.doc-placeholder-content {
    text-align: center;
    color: var(--doc-muted);
}

.doc-placeholder-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
    color: var(--doc-primary);
}

/* Spinner avec armoirie */
.doc-spinner {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    position: relative;
    animation: doc-spin 1.2s linear infinite;
}

.doc-spinner-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    animation: doc-pulse 1.5s ease-in-out infinite;
}

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

@keyframes doc-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.92); }
}

.doc-pdf-toolbar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
    padding: 10px 14px;
    background: var(--doc-surface);
    border-radius: 12px;
    box-shadow: var(--doc-shadow);
    border: 1px solid var(--doc-border);
}

.doc-tool-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--doc-border);
    background: var(--doc-surface);
    color: #374151;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.doc-tool-btn:hover {
    background: var(--doc-primary-soft);
    border-color: var(--doc-primary);
    color: var(--doc-primary);
}

.doc-page-indicator {
    font-size: 0.85rem;
    font-weight: 600;
    color: #374151;
    min-width: 60px;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

.doc-zoom-level {
    font-size: 0.8rem;
    color: var(--doc-muted);
    font-weight: 500;
    min-width: 44px;
    text-align: center;
}

.doc-tool-divider {
    width: 1px;
    height: 20px;
    background: var(--doc-border);
    margin: 0 4px;
}

.doc-office-container {
    position: relative;
    width: 100%;
    max-width: 100%;
    background: var(--doc-surface);
    border-radius: var(--doc-radius);
    box-shadow: var(--doc-shadow);
    overflow: hidden;
    min-height: 520px;
}

.doc-office-frame {
    width: 100%;
    height: 100%;
    min-height: 520px;
    border: 0;
    display: block;
}

/* Documents similaires */
.doc-similaires {
    margin-top: 48px;
    padding: 0 22px 22px;
}

.doc-similaires-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}

.doc-similaires-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: #111827;
    margin: 0;
    letter-spacing: -0.015em;
}

.doc-similaires-arrows {
    display: flex;
    gap: 8px;
}

.doc-arrow {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    border: 1px solid var(--doc-border);
    background: var(--doc-surface);
    color: #374151;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.doc-arrow:hover {
    background: var(--doc-primary-soft);
    border-color: var(--doc-primary);
    color: var(--doc-primary);
}

.doc-similaires-track-wrapper {
    overflow: hidden;
    margin: 0 -4px;
}

.doc-similaires-track {
    display: flex;
    gap: 16px;
    transition: transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.doc-similar-card {
    flex: 0 0 calc(33.333% - 12px);
    background: var(--doc-surface);
    border-radius: var(--doc-radius);
    border: 1px solid var(--doc-border);
    padding: 18px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.doc-similar-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--doc-shadow-hover);
    border-color: var(--doc-primary);
    color: inherit;
}

.doc-similar-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--doc-primary-soft);
    color: var(--doc-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.doc-similar-card-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.doc-similar-card-title {
    font-size: 0.92rem;
    font-weight: 600;
    color: #111827;
    margin: 0;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.doc-similar-card-meta {
    font-size: 0.8rem;
    color: var(--doc-muted);
    font-weight: 500;
}

@media (max-width: 991px) {
    .doc-viewer-body {
        grid-template-columns: 1fr;
    }

    .doc-thumbnails {
        display: none;
    }

    .doc-similar-card {
        flex: 0 0 calc(50% - 12px);
    }
}

@media (max-width: 640px) {
    .doc-toolbar-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .doc-pdf-toolbar {
        flex-wrap: wrap;
    }

    .doc-similar-card {
        flex: 0 0 calc(100% - 12px);
    }
}



/* Pendant le chargement : place pour le spinner (la zone prend sinon la
   hauteur du canvas vide, 150 px). Retiré par document-viewer.js. */
.doc-pdf-container.est-en-chargement {
    min-height: 460px;
}