/* frontend-user/css/viewer.css */
/* Scoped to the embedded viewer container */

#viewer .viewer-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
    background: var(--bg-primary);
    position: relative;
}

#viewer .viewer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.8rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    z-index: 10;
    gap: 0.3rem;
}

#viewer .viewer-header .left-group {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    flex: 1;
    min-width: 0;
}

#viewer .viewer-header .right-group {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    flex-shrink: 0;
}

#viewer .viewer-title {
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 40%;
    color: var(--text-primary);
}

#viewer .btn-icon {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.2rem 0.4rem;
    min-height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}
#viewer .btn-icon:hover {
    background: var(--bg-secondary);
    border-radius: 4px;
}

#viewer .viewer-main {
    flex: 1;
    overflow: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 0.5rem;
    background: var(--bg-primary);
    position: relative;
}

#viewer .viewer-main.scroll-view {
    overflow-y: auto;
    align-items: flex-start;
}

#viewer .viewer-main.page-view {
    overflow: hidden;
    align-items: center;
}

#viewer .page-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    gap: 0.5rem;
}

#viewer .page-container .canvas-wrapper {
    background: white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    border-radius: 4px;
    overflow: hidden;
    width: fit-content;
    max-width: 100%;
}

#viewer .page-container canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

#viewer .viewer-footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 0.4rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    flex-shrink: 0;
}

#viewer .page-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#viewer .page-nav button,
#viewer .zoom-controls button {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.2rem 0.7rem;
    border-radius: 20px;
    cursor: pointer;
    min-height: 32px;
}
#viewer .page-nav button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#viewer .zoom-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#viewer #viewer-zoom-level {
    min-width: 50px;
    text-align: center;
}

/* Search bar */
#viewer .search-bar {
    display: none;
    align-items: center;
    gap: 0.3rem;
    background: var(--bg-secondary);
    border-radius: 20px;
    padding: 0.1rem 0.4rem;
    border: 1px solid var(--border);
}
#viewer .search-bar.active {
    display: flex;
}
#viewer .search-bar input {
    border: none;
    background: transparent;
    color: var(--text-primary);
    padding: 0.2rem 0.3rem;
    outline: none;
    width: 120px;
    font-size: 0.9rem;
}
#viewer .search-bar .search-results {
    font-size: 0.8rem;
    color: var(--text-muted);
    min-width: 40px;
}

/* Outline drawer */
#viewer .outline-drawer {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0 0 8px 8px;
    box-shadow: var(--shadow);
    max-height: 60vh;
    overflow-y: auto;
    min-width: 200px;
    z-index: 20;
    display: none;
    padding: 0.3rem 0;
}
#viewer .outline-drawer.open {
    display: block;
}
#viewer .outline-drawer .outline-item {
    padding: 0.4rem 1rem;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-light);
}
#viewer .outline-drawer .outline-item:hover {
    background: var(--bg-secondary);
}
#viewer .outline-drawer .outline-item .level-1 { padding-left: 0.5rem; }
#viewer .outline-drawer .outline-item .level-2 { padding-left: 1.5rem; }
#viewer .outline-drawer .outline-item .level-3 { padding-left: 2.5rem; }

/* Loading */
#viewer .loading-container {
    text-align: center;
    color: var(--text-muted);
}
#viewer .spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Error */
#viewer .error-container {
    text-align: center;
    padding: 2rem;
    color: var(--text-primary);
}
#viewer .error-container .btn-secondary {
    margin-top: 1rem;
}

/* File input for local files */
#viewer .file-input {
    display: none;
}