:root {
    --ui-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.app-header {
    background: #f5f5f5;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    justify-content: space-between;
}

.app-header a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.2s;
}

.app-header a:hover {
    opacity: 0.8;
}

.app-header img {
    width: 24px;
    height: 24px;
}

.app-header h1 {
    font-family: var(--ui-font);
    font-size: 1.25rem;
    font-weight: 600;
    color: #333;
    margin: 0;
}

.header-controls {
    display: flex;
    gap: 0.5rem;
}

.button.mini {
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    background: #607D8B;
}

.button.mini:hover {
    background: #546E7A;
}

#vis {
    width: 100%;
    height: 100%;
    padding: 1rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Apply font to UI elements */
.panel-header,
.button,
.snippet-item,
.snippet-content {
    font-family: var(--ui-font);
}

.panel-header h2 {
    font-weight: 600;
    font-size: 1.125rem;
}

.button {
    font-weight: 500;
}

.snippet-content {
    font-size: 0.925rem;
}

.container {
    display: grid;
    grid-template-rows: auto 1fr;
    grid-template-columns: var(--snippet-width, 1fr) 5px var(--editor-width, 1fr) 5px var(--preview-width, 2fr);
    height: 100vh;
    background-color: #e0e0e0;
}

.app-header {
    grid-column: 1 / -1;
}

.panel {
    background: white;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.panel-header {
    padding: 1rem;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f5f5f5;
}

.resize-handle {
    background-color: #e0e0e0;
    cursor: col-resize;
    transition: background-color 0.2s;
}

.resize-handle:hover,
.resize-handle.active {
    background-color: #2196F3;
}

.button {
    padding: 0.5rem 1rem;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.button:hover {
    background: #45a049;
}

.button:disabled {
    background: #cccccc;
    cursor: not-allowed;
}

.button.secondary {
    background: #607D8B;
}

.button.secondary:hover {
    background: #546E7A;
}

.snippet-list {
    padding: 1rem;
    flex-grow: 1;
}

.snippet-item {
    padding: 0.75rem;
    margin: 0.5rem 0;
    background: #f5f5f5;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.snippet-item:hover {
    background: #eeeeee;
}

.snippet-item.active {
    background: #e3f2fd;
    border-left: 4px solid #2196F3;
}

#monaco-editor {
    height: 100%;
    flex-grow: 1;
}

.preview-panel>*:not(.panel-header) {
    padding: 1rem;
}

.editor-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.snippet-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px;
    cursor: pointer;
    gap: 8px;
}

.snippet-item span {
    cursor: pointer;
}

.snippet-content {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.delete-snippet,
.edit-snippet,
.duplicate-snippet,
.comment-snippet {
    opacity: 0.2;
    font-size: 14px;
    padding: 2px 4px;
    background: none;
    border: none;
    cursor: pointer;
    min-width: 24px;
    transition: opacity 0.2s;
}

.snippet-item:hover .delete-snippet,
.snippet-item:hover .edit-snippet,
.snippet-item:hover .duplicate-snippet,
.snippet-item:hover .comment-snippet {
    opacity: 0.6;
}

.snippet-item.active .delete-snippet,
.snippet-item.active .edit-snippet,
.snippet-item.active .duplicate-snippet,
.snippet-item.active .comment-snippet {
    opacity: 1;
}

.comment-snippet.has-comment {
    opacity: 0.4;
}

.snippet-item:hover .comment-snippet.has-comment {
    opacity: 0.6;
}

.snippet-item.active .comment-snippet.has-comment {
    opacity: 1;
}

.snippet-buttons {
    display: flex;
    gap: 4px;
}

.comment-modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    width: 50%;
    height: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 1rem;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    font-family: var(--ui-font);
}

.comment-modal h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.comment-modal textarea {
    width: 100%;
    height: calc(100% - 2rem);
    margin-bottom: 1rem;
    font-family: var(--ui-font);
    font-size: 1rem;
    padding: 0.5rem;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
}

.comment-modal .button {
    display: block;
    margin: 0 auto;
    font-family: var(--ui-font);
}

.comment-modal-background {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.comment-snippet {
    opacity: 0;
    font-size: 14px;
    padding: 2px 4px;
    background: none;
    border: none;
    cursor: pointer;
    min-width: 24px;
    transition: opacity 0.2s;
}

.comment-snippet.has-comment {
    opacity: 0.4;
}

.snippet-item:hover .comment-snippet,
.snippet-item.active .comment-snippet {
    opacity: 0.4;
}

.snippet-item:hover .comment-snippet.has-comment,
.snippet-item.active .comment-snippet.has-comment {
    opacity: 1;
}

.comment-snippet:hover {
    opacity: 1;
}

.snippet-item:hover .comment-snippet {
    opacity: 0.8;
}

.snippet-search {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 1rem;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    font-size: 1rem;
}

#comment-editor {
    width: 100%;
    height: calc(100% - 2rem);
    margin-bottom: 1rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.about-link {
    font-family: var(--ui-font);
    font-size: 1rem;
    color: #607D8B;
    text-decoration: none;
    transition: color 0.2s;
    padding-left: 1rem;
}

.about-link:hover {
    color: #546E7A;
}

.content {
    max-width: 66%;
    margin: 0 auto;
    padding: 2rem 0;
    font-family: var(--ui-font);
    font-size: 1rem;
    line-height: 1.5;
    color: #333;
}

.content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 1.5rem;
}

.content p {
    margin-bottom: 1rem;
}

.content a {
    color: #2196F3;
    text-decoration: none;
}

.content a:hover {
    text-decoration: underline;
}

.content ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.content li {
    margin-bottom: 0.5rem;
}

.footer {
    text-align: center;
    font-size: 0.875rem;
    padding: 1rem 0;
    background: #f5f5f5;
    border-top: 1px solid #e0e0e0;
    font-family: var(--ui-font);
}

.footer p {
    margin: 0;
    color: #333;
}

.footer a {
    color: #2196F3;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}