/* ===== PDF Viewer Enhancements ===== */

.oe-pdfview-toolbar-enhanced {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--line, #d7dee7);
    background: var(--surface-soft, #f6f8fb);
    gap: 1rem;
    margin-bottom: 0.5rem;
    border-radius: 8px 8px 0 0;
}

.oe-pdfview-toolbar-left,
.oe-pdfview-toolbar-right {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.oe-pdfview-help-btn,
.oe-pdfview-thumbnails-btn,
.oe-pdfview-fullscreen-btn,
.oe-pdfview-bookmark-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0.5rem;
    border: 1px solid var(--line, #d7dee7);
    border-radius: 6px;
    background: white;
    color: var(--text-primary, #000);
    cursor: pointer;
    transition: all 0.22s ease;
    position: relative;
}

.oe-pdfview-help-btn:hover,
.oe-pdfview-thumbnails-btn:hover,
.oe-pdfview-fullscreen-btn:hover,
.oe-pdfview-bookmark-btn:hover {
    background: var(--accent, #1a5b97);
    border-color: var(--accent, #1a5b97);
    color: white;
    box-shadow: 0 4px 12px rgba(26, 91, 151, 0.2);
    transform: translateY(-1px);
}

.oe-pdfview-help-btn:active,
.oe-pdfview-thumbnails-btn:active,
.oe-pdfview-fullscreen-btn:active,
.oe-pdfview-bookmark-btn:active {
    transform: translateY(0);
}

.oe-pdfview-bookmark-btn.bookmarked {
    background: #f59e0b;
    border-color: #f59e0b;
    color: white;
}

.oe-pdfview-help-btn svg,
.oe-pdfview-thumbnails-btn svg,
.oe-pdfview-fullscreen-btn svg,
.oe-pdfview-bookmark-btn svg {
    width: 18px;
    height: 18px;
}

.oe-pdfview-help-btn .tooltip,
.oe-pdfview-thumbnails-btn .tooltip,
.oe-pdfview-fullscreen-btn .tooltip,
.oe-pdfview-bookmark-btn .tooltip {
    position: absolute;
    bottom: -32px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.4rem 0.7rem;
    border-radius: 4px;
    background: rgba(12, 23, 36, 0.92);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 10001;
}

.oe-pdfview-help-btn:hover .tooltip,
.oe-pdfview-thumbnails-btn:hover .tooltip,
.oe-pdfview-fullscreen-btn:hover .tooltip,
.oe-pdfview-bookmark-btn:hover .tooltip {
    opacity: 1;
}

/* Shortcuts Modal */
.oe-pdfview-shortcuts-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10002;
    padding: 1rem;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.oe-pdfview-shortcuts-content {
    position: relative;
    background: white;
    border-radius: 12px;
    padding: 2rem;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(2rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.oe-pdfview-shortcuts-content h2 {
    margin: 0 0 1.5rem;
    font-size: 1.5rem;
    color: var(--text-primary, #000);
}

.oe-pdfview-shortcuts-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    font-size: 1.5rem;
    cursor: pointer;
    color: #999;
    transition: color 0.2s ease;
}

.oe-pdfview-shortcuts-close:hover {
    color: var(--text-primary, #000);
}

.oe-pdfview-shortcuts-list {
    display: grid;
    gap: 1rem;
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.shortcut-item kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    height: 2rem;
    padding: 0 0.5rem;
    background: #f3f4f6;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.85rem;
    font-weight: 600;
    color: #374151;
}

.shortcut-item span {
    color: var(--text-soft, #666);
    font-size: 0.95rem;
}

/* Toast Notifications */
.oe-pdfview-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    background: rgba(26, 91, 151, 0.95);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 8px 24px rgba(13, 24, 36, 0.2);
    animation: toastSlideIn 0.3s ease;
    z-index: 10001;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateY(1rem) translateX(0.5rem);
    }
    to {
        opacity: 1;
        transform: translateY(0) translateX(0);
    }
}

/* Fullscreen Styles */
:fullscreen .oe-pdfview-toolbar-enhanced {
    position: relative;
    z-index: 10000;
}

/* Mobile Responsive */
@media (max-width: 640px) {
    .oe-pdfview-toolbar-enhanced {
        padding: 0.5rem;
        gap: 0.3rem;
    }

    .oe-pdfview-help-btn,
    .oe-pdfview-thumbnails-btn,
    .oe-pdfview-fullscreen-btn,
    .oe-pdfview-bookmark-btn {
        min-width: 36px;
        height: 36px;
        padding: 0.4rem;
    }

    .oe-pdfview-help-btn svg,
    .oe-pdfview-thumbnails-btn svg,
    .oe-pdfview-fullscreen-btn svg,
    .oe-pdfview-bookmark-btn svg {
        width: 16px;
        height: 16px;
    }

    .oe-pdfview-shortcuts-content {
        padding: 1.5rem;
        max-width: 90vw;
    }

    .oe-pdfview-toast {
        bottom: 1.5rem;
        right: 1rem;
        left: 1rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    body.dark-mode .oe-pdfview-toolbar-enhanced {
        background: var(--surface, #2a3f5f);
        border-color: var(--line, #546e8a);
    }

    body.dark-mode .oe-pdfview-help-btn,
    body.dark-mode .oe-pdfview-thumbnails-btn,
    body.dark-mode .oe-pdfview-fullscreen-btn,
    body.dark-mode .oe-pdfview-bookmark-btn {
        background: var(--surface-soft, #1a2d45);
        border-color: var(--line, #546e8a);
        color: var(--text-primary, #e0e0e0);
    }

    body.dark-mode .oe-pdfview-help-btn:hover,
    body.dark-mode .oe-pdfview-thumbnails-btn:hover,
    body.dark-mode .oe-pdfview-fullscreen-btn:hover,
    body.dark-mode .oe-pdfview-bookmark-btn:hover {
        background: var(--accent, #1a5b97);
    }

    body.dark-mode .oe-pdfview-shortcuts-content {
        background: var(--surface, #2a3f5f);
        color: var(--text-primary, #e0e0e0);
    }

    body.dark-mode .shortcut-item kbd {
        background: var(--surface-soft, #1a2d45);
        border-color: var(--line, #546e8a);
        color: var(--text-primary, #e0e0e0);
    }

    body.dark-mode .shortcut-item span {
        color: var(--text-soft, #999);
    }
}

/* Accessibility */
.oe-pdfview-help-btn:focus-visible,
.oe-pdfview-thumbnails-btn:focus-visible,
.oe-pdfview-fullscreen-btn:focus-visible,
.oe-pdfview-bookmark-btn:focus-visible {
    outline: 3px solid var(--accent, #1a5b97);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .oe-pdfview-toolbar-enhanced,
    .oe-pdfview-help-btn,
    .oe-pdfview-thumbnails-btn,
    .oe-pdfview-fullscreen-btn,
    .oe-pdfview-bookmark-btn {
        display: none;
    }
}