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

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #1c2333;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --border: #30363d;
    --danger: #f85149;
    --success: #3fb950;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    background: var(--bg-secondary);
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.2rem;
    font-weight: 600;
}

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

#token-input {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    font-size: 0.85rem;
}

button {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

button:hover {
    background: var(--accent);
    color: var(--bg-primary);
}

main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

#sidebar {
    width: 320px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.sidebar-header button {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.sidebar-header button:hover {
    background: var(--accent);
    color: var(--bg-primary);
}

#file-tree {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.breadcrumb {
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    cursor: default;
}

.breadcrumb span[data-path] {
    cursor: pointer;
    color: var(--accent);
}

.breadcrumb span[data-path]:hover {
    text-decoration: underline;
}

#path-display {
    color: var(--text-secondary);
    font-size: 0.9rem;
    direction: ltr;
    unicode-bidi: embed;
    flex: 1;
}

#file-list {
    list-style: none;
}

#file-list li {
    padding: 0.3rem 0.5rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: background 0.2s;
}

#file-list li:hover {
    background: var(--bg-tertiary);
}

#file-list .folder {
    color: var(--accent);
}

#file-list .file {
    color: var(--text-secondary);
}

#file-list .editable {
    color: var(--success);
}

#file-list .file-actions {
    margin-right: auto;
    display: none;
    gap: 0.3rem;
}

#file-list li:hover .file-actions {
    display: flex;
}

.back-item {
    border-bottom: 1px solid var(--border);
    padding: 0.5rem !important;
    font-weight: bold;
    color: var(--accent) !important;
}

.back-item:hover {
    background: var(--bg-tertiary) !important;
}

#editor-section {
    flex: 1;
    display: none;
    flex-direction: column;
    background: var(--bg-primary);
}

#editor-section.active {
    display: flex;
}

#editor-header {
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#current-file {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.editor-actions {
    display: flex;
    gap: 0.5rem;
}

#editor-container {
    flex: 1;
    overflow: hidden;
}

.CodeMirror {
    height: 100% !important;
    background: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    font-size: 14px;
}

.status-connected {
    color: var(--success);
}

.status-disconnected {
    color: var(--danger);
}

.back-button {
    color: var(--accent);
    cursor: pointer;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    background: var(--bg-tertiary);
    margin-left: 0.5rem;
    transition: all 0.2s;
    font-size: 0.9rem;
    display: inline-block;
}

.back-button:hover {
    background: var(--accent);
    color: var(--bg-primary);
}