/**
 * Component Styles
 * Modals, sidebars, minimap, and other UI components
 */

/* Sidebar */
.sidebar {
    width: 250px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
}

.sidebar.collapsed {
    width: 0;
    border-right: none;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin: 0;
}

.sidebar-close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-close-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Table of Contents */
.toc-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-item {
    margin: 2px 0;
}

.toc-link {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.toc-link:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.toc-link.active {
    background: var(--accent-primary-transparent);
    color: var(--accent-primary);
}

.toc-item[data-level="1"] .toc-link {
    padding-left: var(--spacing-sm);
    font-weight: 600;
}

.toc-item[data-level="2"] .toc-link {
    padding-left: calc(var(--spacing-sm) + 12px);
}

.toc-item[data-level="3"] .toc-link {
    padding-left: calc(var(--spacing-sm) + 24px);
}

.toc-item[data-level="4"] .toc-link {
    padding-left: calc(var(--spacing-sm) + 36px);
}

.toc-item[data-level="5"] .toc-link {
    padding-left: calc(var(--spacing-sm) + 48px);
}

.toc-item[data-level="6"] .toc-link {
    padding-left: calc(var(--spacing-sm) + 60px);
}

/* Minimap */
.minimap {
    width: 120px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    position: relative;
    flex-shrink: 0;
    overflow: hidden;
}

.minimap.hidden {
    display: none;
}

#minimap-canvas {
    width: 100%;
    height: 100%;
    opacity: 0.8;
}

.minimap-viewport {
    position: absolute;
    left: 0;
    right: 0;
    background: var(--accent-primary-transparent);
    border: 1px solid var(--accent-primary);
    border-radius: 2px;
    cursor: pointer;
    transition: top 0.1s ease;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal[hidden] {
    display: none;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    animation: modalIn 0.2s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-10px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-content.modal-small {
    max-width: 400px;
}

.modal-content.modal-large {
    max-width: 800px;
}

.modal-content.modal-full {
    max-width: 95vw;
    max-height: 95vh;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

/* Settings Modal */
.settings-section {
    margin-bottom: var(--spacing-lg);
}

.settings-section h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-color);
}

.setting-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.setting-item label {
    flex: 1;
    color: var(--text-secondary);
}

.setting-item select,
.setting-item input[type="range"] {
    width: 200px;
}

.setting-item input[type="range"] {
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-tertiary);
    border-radius: 2px;
}

.setting-item input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
}

.encryption-settings {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-md);
}

/* History Modal */
.history-body {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--spacing-md);
    min-height: 400px;
}

.history-list-container {
    border-right: 1px solid var(--border-color);
    padding-right: var(--spacing-md);
}

.history-list-container h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
}

.history-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 350px;
    overflow-y: auto;
}

.history-item {
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: 2px;
}

.history-item:hover {
    background: var(--bg-hover);
}

.history-item.selected {
    background: var(--accent-primary-transparent);
    border-left: 3px solid var(--accent-primary);
}

.history-item-date {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.history-item-time {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.history-item-size {
    font-size: 10px;
    color: var(--text-muted);
}

.history-preview-container {
    display: flex;
    flex-direction: column;
}

.history-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.history-preview {
    flex: 1;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-md);
    overflow: auto;
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    white-space: pre-wrap;
    word-break: break-word;
}

.placeholder-text {
    color: var(--text-muted);
    font-style: italic;
}

/* Diff View */
.diff-container {
    height: 100%;
    overflow: auto;
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.diff-line {
    display: flex;
    white-space: pre-wrap;
    word-break: break-all;
}

.diff-line-number {
    width: 50px;
    min-width: 50px;
    padding: 0 var(--spacing-sm);
    text-align: right;
    color: var(--text-muted);
    background: var(--bg-secondary);
    -webkit-user-select: none;
    user-select: none;
    border-right: 1px solid var(--border-color);
}

.diff-line-content {
    flex: 1;
    padding: 0 var(--spacing-sm);
}

.diff-line.added {
    background: var(--diff-add-bg);
}

.diff-line.added .diff-line-content {
    color: var(--diff-add-text);
}

.diff-line.removed {
    background: var(--diff-remove-bg);
}

.diff-line.removed .diff-line-content {
    color: var(--diff-remove-text);
}

.diff-line.changed {
    background: var(--diff-change-bg);
}

/* Export Modal */
.export-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.export-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.export-option:hover {
    border-color: var(--accent-primary);
    background: var(--accent-primary-transparent);
}

.export-option svg {
    color: var(--accent-primary);
}

.export-option span {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.export-clipboard {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.export-clipboard h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.clipboard-options {
    display: flex;
    gap: var(--spacing-sm);
}

/* Import Modal / Drop Zone */
.drop-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    background: var(--bg-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 200px;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--accent-primary);
    background: var(--accent-primary-transparent);
}

.drop-zone svg {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.drop-zone p {
    color: var(--text-secondary);
    margin: 0;
}

.drop-zone-hint {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* Emoji Picker */
.emoji-search {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
    max-height: 300px;
    overflow-y: auto;
}

.emoji-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    font-size: 20px;
    background: transparent;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.emoji-item:hover {
    background: var(--bg-hover);
}

/* Keyboard Shortcuts Modal */
.shortcuts-body {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.shortcuts-column h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
}

.shortcuts-list {
    margin: 0;
}

.shortcuts-list>div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--border-color);
}

.shortcuts-list dt {
    display: flex;
    gap: 4px;
}

.shortcuts-list dd {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}