:root {
    --bg: #0a0a0f;
    --surface: #12121a;
    --border: #2a2a3a;
    --text: #e0e0e8;
    --text-dim: #888898;
    --accent: #6c5ce7;
    --accent-dim: #4a3db8;
    --success: #00d2a0;
    --error: #ff6b6b;
    --mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
}

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

body {
    font-family: var(--mono);
    background: var(--bg);
    color: var(--text);
    font-size: 13px;
    line-height: 1.5;
}

.app {
    display: grid;
    grid-template-rows: 48px 1fr;
    height: 100vh;
    overflow: hidden;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    padding: 0 20px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    gap: 24px;
}

.header h1 {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--accent);
}

/* Tabs */
.tabs { display: flex; gap: 2px; }

.tab {
    background: none;
    border: none;
    color: var(--text-dim);
    font-family: var(--mono);
    font-size: 12px;
    padding: 6px 14px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
}

.tab:hover { color: var(--text); }
.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* Main layout */
.main {
    display: grid;
    grid-template-columns: 240px 1fr;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    padding: 12px 16px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-list { overflow-y: auto; flex: 1; }

.dataset-item {
    padding: 10px 16px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    transition: background 0.1s;
}

.dataset-item:hover { background: rgba(108, 92, 231, 0.1); }

.dataset-item.active {
    background: rgba(108, 92, 231, 0.15);
    border-left: 2px solid var(--accent);
}

.dataset-item .name { font-weight: 600; font-size: 13px; }
.dataset-item .meta { font-size: 11px; color: var(--text-dim); margin-top: 2px; }

/* Content area */
.content {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Query editor */
.query-editor {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 8px;
}

.query-editor textarea {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--mono);
    font-size: 13px;
    padding: 10px;
    border-radius: 4px;
    resize: none;
    min-height: 60px;
    outline: none;
}

.query-editor textarea:focus { border-color: var(--accent); }

/* Buttons */
.btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 12px;
    cursor: pointer;
    font-weight: 600;
    white-space: nowrap;
    transition: background 0.1s;
}

.btn:hover { background: var(--accent-dim); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-sm { padding: 4px 10px; font-size: 11px; }

.refresh-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-dim);
    padding: 2px 8px;
    border-radius: 3px;
    font-family: var(--mono);
    font-size: 10px;
    cursor: pointer;
}

.refresh-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Results */
.results { flex: 1; overflow: auto; padding: 16px; }
.results-info { font-size: 11px; color: var(--text-dim); margin-bottom: 8px; }

table { width: 100%; border-collapse: collapse; font-size: 12px; }

th {
    text-align: left;
    padding: 8px 12px;
    background: var(--surface);
    border-bottom: 2px solid var(--accent);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    position: sticky;
    top: 0;
}

td { padding: 6px 12px; border-bottom: 1px solid var(--border); }
tr:hover td { background: rgba(108, 92, 231, 0.05); }

/* States */
.loading { color: var(--accent); padding: 20px; text-align: center; }

.error {
    color: var(--error);
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.3);
    padding: 12px 16px;
    border-radius: 4px;
    font-size: 12px;
}

.success {
    color: var(--success);
    background: rgba(0, 210, 160, 0.1);
    border: 1px solid rgba(0, 210, 160, 0.3);
    padding: 12px 16px;
    border-radius: 4px;
    font-size: 12px;
    margin-top: 8px;
}

.empty { color: var(--text-dim); padding: 40px 20px; text-align: center; font-size: 12px; }

/* Panels */
.panel {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.panel-section {
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.panel-section:last-child { border-bottom: none; }

.panel-section h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 6px;
}

.hint {
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 12px;
}

/* Forms */
.form-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.form-row label {
    font-size: 11px;
    color: var(--text-dim);
    min-width: 80px;
}

.form-row input, input {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--mono);
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 4px;
    flex: 1;
    outline: none;
}

.form-row input:focus, input:focus { border-color: var(--accent); }

.row { display: flex; gap: 8px; margin-bottom: 8px; }

/* Object list */
.object-list { margin-top: 8px; }

.object-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
}

.mono { font-family: var(--mono); }

/* AI panel */
.ai-panel { max-width: 800px; }

.input-area {
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--mono);
    font-size: 12px;
    padding: 10px;
    border-radius: 4px;
    resize: vertical;
    min-height: 60px;
    outline: none;
    margin-bottom: 8px;
}

.input-area:focus { border-color: var(--accent); }

.result-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 12px;
    margin-top: 10px;
}

.result-meta {
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.embed-row {
    font-size: 11px;
    color: var(--text);
    padding: 2px 0;
}

.gen-text {
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
}

.rerank-row {
    display: flex;
    gap: 12px;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
}

.rerank-row:last-child { border-bottom: none; }

.score {
    background: var(--accent);
    color: white;
    padding: 2px 8px;
    border-radius: 3px;
    font-weight: 600;
    font-size: 11px;
    min-width: 32px;
    text-align: center;
}

/* Status checks */
.check-results { margin-top: 16px; }

.check-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    border-left: 3px solid transparent;
}

.check-row.check-pass { border-left-color: var(--success); }
.check-row.check-fail { border-left-color: var(--error); }

.check-name { font-weight: 600; }
.check-result { color: var(--text-dim); text-align: right; max-width: 60%; }
.check-pass .check-result { color: var(--success); }
.check-fail .check-result { color: var(--error); }