:root {
    --bg: #111827;
    --text: #e5e7eb;
    --panel: #0b1220;
    --border: #1f2937;
    --muted: #94a3b8;
    --accent: #93c5fd;
    --input: #0f172a;
    --input-border: #334155;
    --btn: #334155;
    --btn-border: #475569;
}

:root.light {
    --bg: #f9fafb;
    --text: #0f172a;
    --panel: #ffffff;
    --border: #e5e7eb;
    --muted: #475569;
    --accent: #2563eb;
    --input: #ffffff;
    --input-border: #cbd5e1;
    --btn: #e5e7eb;
    --btn-border: #cbd5e1;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    margin: 0;
    padding: 24px;
    background: var(--bg);
    color: var(--text);
}

h1 {
    font-size: 20px;
    margin: 0 0 12px
}

.container {
    max-width: 1200px;
    margin: 0 auto
}

a {
    color: var(--accent)
}

.toolbar {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 12px
}

.toolbar .spacer {
    flex: 1
}

.toolbar input {
    background: var(--input);
    border: 1px solid var(--input-border);
    color: var(--text);
    padding: 6px 8px;
    border-radius: 6px
}

.toolbar button {
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer
}

.layout {
    display: grid;
    grid-template-columns: minmax(300px, 380px) 1fr;
    gap: 16px;
    min-height: 70vh
}

.sidebar {
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 8px;
    border-radius: 8px
}

.sidebar-header {
    display: flex;
    gap: 8px;
    row-gap: 6px;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    flex-wrap: wrap
}

.sidebar-header .spacer {
    display: none
}

.sidebar-header select {
    min-width: 140px;
    max-width: 100%
}

@media (min-width: 900px) {
    .sidebar-header {
        flex-wrap: nowrap
    }

    .sidebar-header .spacer {
        display: block;
        flex: 1
    }
}

.ws-info {
    font-size: 12px;
    color: var(--muted);
    margin-left: auto
}

.sidebar-header label {
    font-size: 12px;
    color: var(--muted)
}

.sidebar-header select {
    background: var(--input);
    border: 1px solid var(--input-border);
    color: var(--text);
    padding: 6px 8px;
    border-radius: 6px
}

.sidebar-header button {
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    white-space: nowrap;
    flex: 0 0 auto
}

.sidebar-body {
    .sidebar-header #wsCreateBtn {
        width: 32px;
        height: 32px;
        padding: 0;
        line-height: 30px;
        text-align: center;
        font-weight: bold
    }

    .hint {
        color: var(--muted);
        font-size: 12px
    }

    .prompt .actions {
        margin-top: 8px
    }

    .prompt .actions button {
        background: var(--btn);
        border: 1px solid var(--btn-border);
        color: var(--text);
        padding: 6px 10px;
        border-radius: 6px;
        cursor: pointer
    }

    display: flex;
    flex-direction: column;
    gap: 8px
}

.searchbar {
    display: flex;
    gap: 8px
}

.searchbar input {
    background: var(--input);
    border: 1px solid var(--input-border);
    color: var(--text);
    padding: 6px 8px;
    border-radius: 6px
}

.searchbar button {
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer
}

.sidebar-header button {
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer
}

.main {
    display: flex;
    flex-direction: column;

    .prompt {
        background: var(--panel);
        border: 1px solid var(--border);
        padding: 12px;
        border-radius: 8px
    }

    .prompt textarea {
        width: 100%;
        min-height: 120px;
        background: var(--input);
        color: var(--text);
        border: 1px solid var(--input-border);
        border-radius: 6px;
        padding: 8px;
        resize: vertical
    }

    gap: 16px
}

/* Tabs */
.tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 8px
}

.tab {
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer
}

.tab.active {
    background: transparent;
    border-color: var(--accent);
    color: var(--accent)
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.subbar {
    display: flex;
    gap: 8px;
    align-items: center;
    margin: 8px 0
}

.subbar input {
    background: var(--input);
    border: 1px solid var(--input-border);
    color: var(--text);
    padding: 6px 8px;
    border-radius: 6px
}

.subbar button {
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer
}

.subbar input {
    background: var(--input);
    border: 1px solid var(--input-border);
    color: var(--text);
    padding: 6px 8px;
    border-radius: 6px
}

.subbar button {
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer
}


/* Chat */
.chat {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    height: 60vh
}

.messages {
    flex: 1;
    padding: 12px;
    overflow: auto;
    display: flex;
    flex-direction: column;
    gap: 10px
}

.message {
    display: flex;
    gap: 8px;
}

.message .bubble {
    max-width: 70%;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid var(--border)
}

.message.user .bubble {
    background: rgba(99, 102, 241, 0.15);
}

.message.ai .bubble {
    background: rgba(16, 185, 129, 0.15);
}

.chat-input {
    border-top: 1px solid var(--border);
    padding: 10px;
    display: flex;
    gap: 8px
}

.chat-input textarea {
    flex: 1;
    background: var(--input);
    border: 1px solid var(--input-border);
    color: var(--text);
    border-radius: 8px;
    padding: 8px;
    min-height: 60px
}

.chat-input button {
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer
}

.preview {
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 8px;
    border-radius: 6px;
    min-height: 300px
}

.prompt,
.selection {
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 12px;
    border-radius: 6px
}

.prompt textarea {
    width: 100%;
    min-height: 120px;
    background: var(--input);
    color: var(--text);
    border: 1px solid var(--input-border);
    border-radius: 6px;
    padding: 8px;
    resize: vertical;
}

.prompt .actions {
    margin-top: 8px;
}

.prompt-output {
    margin-top: 10px;
}

.prompt-output pre {
    white-space: pre-wrap;
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 8px;
    border-radius: 6px;
}

/* Collapsible tree styles */
#tree ul {
    list-style: none;
    margin: 0;
    padding-left: 12px;
}

#tree li {
    margin: 2px 0;
}

#tree .dir {
    color: var(--text);
}

#tree .dir .dir-label .name {
    color: var(--text);
}

#tree .file a {
    color: var(--text);
    text-decoration: none;
}

#tree .file a:hover {
    text-decoration: underline;
}

/* Modal */
.modal[aria-hidden="true"] {
    display: none
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
}

.modal-backdrop {
    position: absolute;
    inset: 0;

    background: rgba(0, 0, 0, 0.5)
}

.modal .row {
    display: flex;
    gap: 12px
}

.modal .col {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px
}

.modal .list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 40vh;
    overflow: auto
}

.modal .list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    border-bottom: 1px dashed var(--border)
}

.modal .list .use {
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    border-radius: 6px;
    padding: 4px 8px;
    cursor: pointer
}

.modal-dialog {
    position: relative;
    margin: 8vh auto;
    max-width: 520px;
    background: var(--panel);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px;
    z-index: 1
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px
}

.modal-header .icon {
    background: transparent;
    border: none;
    color: var(--text);
    cursor: pointer;
    font-size: 18px
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 8px
}

.modal-body input {
    background: var(--input);
    color: var(--text);
    border: 1px solid var(--input-border);
    border-radius: 6px;
    padding: 8px
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 12px
}

.modal-footer button {
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    border-radius: 6px;
    padding: 6px 10px;
    cursor: pointer
}

.error {
    color: #ef4444;
    font-size: 12px;
    min-height: 16px
}


#tree .toggle {
    appearance: none;
    -webkit-appearance: none;
    width: 0;
    height: 0;
    position: absolute;
}

#tree .dir-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
}

#tree .dir .chev {
    display: inline-block;
    transform: rotate(-90deg);
    transition: transform 0.15s ease;
    width: 10px;
    height: 10px;
    border-right: 2px solid #93c5fd;
    border-bottom: 2px solid #93c5fd;
    margin-left: 2px;
}

#tree .dir .toggle:checked+.dir-label .chev {
    transform: rotate(0deg);
}

#tree .children {
    display: none;
    margin-left: 16px;
}

#tree .dir .toggle:checked~.children {
    display: block;
}

#tree button {
    margin-left: 6px;
    background: var(--btn);
    border: 1px solid var(--btn-border);
    color: var(--text);
    padding: 2px 6px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}

#selected li {
    display: flex;
    justify-content: space-between;
    gap: 8px
}