:root {
    --bg: #f5f5f5; --card: #fff; --border: #ddd; --text: #222; --muted: #888;
    --accent: #2196F3; --accent-dark: #1976D2; --hover: #f0f7ff;
    --tag-bg: #e3f2fd; --tag-text: #1565C0;
    --green: #4CAF50; --green-bg: #e8f5e9; --red: #f44336; --red-bg: #ffebee;
    --chat-user: #e3f2fd; --chat-hermes: #fff; --msg-shadow: 0 1px 3px rgba(0,0,0,0.08);
    --nav-height: 48px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 14px; color: var(--text); background: var(--bg); line-height: 1.5;
    height: 100vh; height: 100dvh; display: flex; flex-direction: column; overflow: hidden;
}

/* ===== NAV BAR ===== */
#topbar {
    background: var(--card); border-bottom: 1px solid var(--border);
    padding: 0 12px; display: flex; align-items: center; height: var(--nav-height);
    flex-shrink: 0; gap: 8px; z-index: 100;
}
#topbar h1 { font-size: 16px; white-space: nowrap; flex-shrink: 0; }
#topbar .nav { display: flex; gap: 2px; overflow-x: auto; flex: 1; }
#topbar .nav a {
    padding: 6px 12px; border-radius: 4px; text-decoration: none; color: var(--text);
    cursor: pointer; border: 1px solid transparent; font-size: 12px; white-space: nowrap;
}
#topbar .nav a.active { background: var(--accent); color: #fff; }
#topbar .nav a:not(.active):hover { background: var(--hover); }
#topbar .stats { margin-left: auto; color: var(--muted); font-size: 11px; white-space: nowrap; }

/* ===== MAIN LAYOUT ===== */
/* app-content must be a flex column so #main-layout's flex:1 resolves and the
   min-height:0 chain reaches #chat-messages (otherwise desktop can't scroll) */
#app-content { flex: 1; min-height: 0; flex-direction: column; overflow: hidden; }
#main-layout { display: flex; flex: 1; min-height: 0; position: relative; }

/* ===== CHAT PANE ===== */
#chat-pane {
    flex: 1; display: flex; flex-direction: column; min-width: 0; min-height: 0; background: #fafafa;
    border-right: 1px solid var(--border);
}
#chat-messages {
    flex: 1; overflow-y: auto; -webkit-overflow-scrolling: touch; padding: 12px;
    display: flex; flex-direction: column; gap: 10px; scroll-behavior: smooth; min-height: 0;
}
.chat-msg {
    max-width: 85%; padding: 10px 14px; border-radius: 12px; font-size: 13px; line-height: 1.55;
    word-wrap: break-word; overflow-wrap: break-word; box-shadow: var(--msg-shadow);
}
.chat-msg.user { align-self: flex-end; background: var(--chat-user); border-bottom-right-radius: 4px; }
.chat-msg.hermes { align-self: flex-start; background: var(--chat-hermes); border-bottom-left-radius: 4px; }
.chat-msg.hermes .doc-ref {
    display: inline-block; background: var(--tag-bg); color: var(--tag-text);
    padding: 1px 6px; border-radius: 4px; font-size: 11px; cursor: pointer;
    text-decoration: none; margin: 0 2px; font-weight: 500;
}
.chat-msg.hermes .doc-ref:hover { background: #bbdefb; text-decoration: underline; }
.chat-msg.hermes .doc-ref.active-ref { background: #ffcc02; color: #333; }
.chat-msg.hermes em { font-style: normal; background: #fff9c4; padding: 1px 0; }
.chat-msg.hermes h1, .chat-msg.hermes h2, .chat-msg.hermes h3 { font-size: 14px; margin: 6px 0 4px; }
.chat-msg.hermes ul, .chat-msg.hermes ol { padding-left: 18px; margin: 4px 0; }
.chat-msg.hermes li { margin: 2px 0; }
.chat-msg.hermes table { border-collapse: collapse; font-size: 12px; margin: 6px 0; width: 100%; }
/* --- markdown tables in AI answers --- */
.md-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 10px 0; max-width: 100%; }
.chat-msg.hermes table.md-table { border-collapse: collapse; width: 100%; min-width: 320px; font-size: 12.5px; line-height: 1.45; background: #fff; table-layout: auto; }
.chat-msg.hermes table.md-table th,
.chat-msg.hermes table.md-table td { border: 1px solid var(--border); padding: 6px 9px; text-align: left; vertical-align: top; word-break: normal; overflow-wrap: anywhere; }
.chat-msg.hermes table.md-table th { background: #f4f5f7; font-weight: 600; white-space: nowrap; }
.chat-msg.hermes table.md-table tbody tr:nth-child(even) td { background: #fafafa; }
@media (max-width: 768px) {
  .chat-msg.hermes table.md-table { font-size: 12px; min-width: 0; }
  .chat-msg.hermes table.md-table th { white-space: normal; }
  .chat-msg.hermes table.md-table th,
  .chat-msg.hermes table.md-table td { padding: 5px 7px; }
}
.chat-msg.hermes td, .chat-msg.hermes th { border: 1px solid #ddd; padding: 4px 8px; text-align: left; }
.chat-msg.hermes th { background: #f0f0f0; }
.chat-msg .msg-time { font-size: 10px; color: var(--muted); margin-top: 4px; }
.chat-msg.thinking {
    align-self: flex-start; background: #fff; color: var(--muted); font-style: italic;
    display: flex; align-items: center; gap: 8px;
}
.thinking-dots { display: flex; gap: 3px; }
.thinking-dots span { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: bounce 1.2s infinite; }
.thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.thinking-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes bounce { 0%,60%,100% { opacity: 0.2; } 30% { opacity: 1; } }

/* ===== CHAT INPUT ===== */
#chat-input-row { display: flex; flex-direction: column; gap: 6px; padding: 8px 12px; border-top: 1px solid var(--border); background: var(--card); flex-shrink: 0; }
.chat-btn-row { display: flex; gap: 4px; justify-content: flex-end; }
.chat-action-btn { padding: 4px 10px; border: 1px solid var(--border); border-radius: 14px; background: #fff; cursor: pointer; font-size: 12px; color: var(--muted); white-space: nowrap; line-height: 1.4; }
.chat-action-btn:hover { background: var(--hover); }
.chat-input-wrap { display: flex; gap: 6px; }
.chat-input-wrap input { flex: 1; padding: 10px 12px; border: 1px solid var(--border); border-radius: 20px; font-size: 14px; font-family: system-ui, sans-serif; outline: none; }
.chat-input-wrap input:focus { border-color: var(--accent); }
.chat-input-wrap button { padding: 8px 18px; border: none; border-radius: 20px; background: var(--accent); color: #fff; cursor: pointer; font-size: 14px; font-weight: 600; white-space: nowrap; }
.chat-input-wrap button:hover { background: var(--accent-dark); }
.chat-input-wrap button:disabled { background: #ccc; cursor: default; }

/* ===== DOC PREVIEW PANE — Complete redesign ===== */
#doc-pane {
    width: 520px; flex-shrink: 0; background: var(--card);
    display: flex; flex-direction: column; border-left: 1px solid var(--border);
    overflow: hidden; position: relative;
    transition: width 0.2s ease;
}
.doc-pane-resize {
    position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
    cursor: col-resize; z-index: 10; background: transparent;
    transition: background 0.15s;
}
.doc-pane-resize:hover, .doc-pane-resize:active { background: var(--accent); opacity: 0.3; }

#doc-pane-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 16px; border-bottom: 1px solid var(--border); flex-shrink: 0;
    background: #fafafa; gap: 8px;
}
#doc-pane-header h3 {
    font-size: 14px; font-weight: 600; overflow: hidden; text-overflow: ellipsis;
    white-space: nowrap; flex: 1; line-height: 1.3; color: var(--text);
}
#doc-pane-header button {
    background: none; border: none; font-size: 20px; cursor: pointer;
    color: var(--muted); padding: 2px 6px; flex-shrink: 0; border-radius: 4px;
    line-height: 1;
}
#doc-pane-header button:hover { color: var(--text); background: #eee; }

#doc-pane-meta {
    padding: 8px 16px; border-bottom: 1px solid #eee; flex-shrink: 0;
    display: flex; flex-wrap: wrap; gap: 4px; align-items: center;
}
.doc-meta-badge {
    display: inline-block; background: var(--tag-bg); color: var(--tag-text);
    padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 500;
}
.doc-meta-cat { background: #f3e5f5; color: #6a1b9a; }
.doc-meta-id { font-size: 10px; color: var(--muted); margin-left: auto; }

#doc-pane-body {
    flex: 1; overflow-y: auto; padding: 12px 16px; min-height: 0;
    scroll-behavior: smooth;
}

/* Loading state */
.doc-loading {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    padding: 40px 20px; color: var(--muted); font-size: 13px;
}

/* Empty state */
.doc-empty {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 40px 20px; color: var(--muted); font-size: 13px; text-align: center;
    gap: 8px;
}

/* View toggle */
.doc-view-toggle {
    display: flex; gap: 0; margin-bottom: 12px; border: 1px solid var(--border);
    border-radius: 6px; overflow: hidden; flex-shrink: 0;
}
.doc-view-btn {
    flex: 1; padding: 6px 12px; border: none; background: #f5f5f5;
    cursor: pointer; font-size: 12px; color: var(--muted); font-weight: 500;
    transition: all 0.15s;
}
.doc-view-btn:first-child { border-right: 1px solid var(--border); }
.doc-view-btn.active { background: var(--accent); color: #fff; }
.doc-view-btn:not(.active):hover { background: var(--hover); }

/* Passage cards */
.doc-passages { display: flex; flex-direction: column; gap: 10px; }
.passage-card {
    background: #fafafa; border: 1px solid #e8e8e8; border-radius: 8px;
    overflow: hidden; transition: box-shadow 0.15s;
}
.passage-card:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.passage-header {
    display: flex; align-items: center; gap: 8px; padding: 6px 12px;
    background: #f0f0f0; border-bottom: 1px solid #e8e8e8;
}
.passage-num {
    display: inline-flex; align-items: center; justify-content: center;
    width: 20px; height: 20px; border-radius: 50%; background: var(--accent);
    color: #fff; font-size: 11px; font-weight: 700; flex-shrink: 0;
}
.passage-pos { font-size: 10px; color: var(--muted); }
.passage-chunk { font-size: 10px; color: var(--muted); margin-left: auto; }
.passage-text {
    padding: 10px 14px; font-size: 13px; line-height: 1.7;
    white-space: pre-wrap; word-wrap: break-word; color: #333;
}

/* Highlight styles */
mark.hl {
    background: #fff9c4; color: inherit; padding: 1px 2px; border-radius: 2px;
    font-weight: 500;
}
mark.hl.hl-flash {
    animation: hlFlash 2s ease;
}
@keyframes hlFlash {
    0%, 100% { background: #fff9c4; }
    25% { background: #ffcc02; }
    50% { background: #fff9c4; }
    75% { background: #ffcc02; }
}

/* Full text view */
.doc-fulltext {
    font-size: 13px; line-height: 1.8; white-space: pre-wrap;
    word-wrap: break-word; color: #333; padding: 4px 0;
}
.doc-truncated {
    margin-top: 12px; padding: 8px 12px; background: #fff3e0;
    border: 1px solid #ffe0b2; border-radius: 6px; font-size: 12px;
    color: #e65100; text-align: center;
}
/* Full document view (tree/search tabs) */
.doc-full-view { padding: 16px; }
.doc-full-header { margin-bottom: 16px; }
.doc-full-header h2 { font-size: 18px; margin: 8px 0; line-height: 1.3; }
.doc-full-meta { display: flex; flex-wrap: wrap; gap: 4px; margin: 8px 0; }
.doc-full-keywords { margin: 8px 0; }
.keyword-chip {
    display: inline-block; background: var(--tag-bg); color: var(--tag-text);
    padding: 3px 10px; border-radius: 12px; font-size: 11px; margin: 2px;
}
.doc-full-text {
    white-space: pre-wrap; font-size: 13px; line-height: 1.7;
    border: 1px solid #e8e8e8; padding: 16px; background: #fafafa;
    border-radius: 8px; max-height: 70vh; overflow-y: auto;
}


/* Action bar */
#doc-pane-actions {
    padding: 8px 16px; border-top: 1px solid var(--border);
    display: flex; gap: 6px; align-items: center; flex-shrink: 0;
    background: #fafafa;
}
#doc-pane-actions button {
    padding: 5px 12px; border: 1px solid var(--border); border-radius: 4px;
    background: var(--card); cursor: pointer; font-size: 12px;
    transition: background 0.15s;
}
#doc-pane-actions button:hover { background: var(--hover); }
.hl-indicator {
    margin-left: auto; font-size: 11px; color: var(--muted);
    background: #fff9c4; padding: 2px 8px; border-radius: 10px;
}

/* ===== TABS (non-chat views) ===== */
.tab-content { padding: 16px; overflow-y: auto; flex: 1; }
.tree-panel { width: 280px; background: var(--card); border-right: 1px solid var(--border); overflow-y: auto; padding: 8px 0; flex-shrink: 0; }
.tree-panel .toggle-btn { font-size: 11px; color: var(--muted); padding: 4px 12px; cursor: pointer; }
.tree-panel .toggle-btn:hover { color: var(--accent); }
.tree-node .node-row { display: flex; align-items: center; padding: 2px 8px; cursor: pointer; gap: 4px; border-radius: 3px; font-size: 12px; }
.tree-node .node-row:hover { background: var(--hover); }
.tree-node .node-row.active { background: var(--tag-bg); font-weight: 600; }
.tree-node .expand-icon { width: 14px; text-align: center; flex-shrink: 0; color: var(--muted); font-size: 10px; }
.tree-node .node-icon { font-size: 12px; flex-shrink: 0; }
.tree-node .node-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.tree-node .node-count { color: var(--muted); font-size: 10px; padding-left: 4px; }
.tree-children { display: none; padding-left: 14px; }
.tree-children.expanded { display: block; }
.btn { padding: 5px 14px; border: none; border-radius: 4px; cursor: pointer; font-size: 13px; background: var(--accent); color: #fff; text-decoration: none; display: inline-block; }
.btn:hover { background: var(--accent-dark); }
.btn.secondary { background: #757575; }
.btn.secondary:hover { background: #616161; }
.btn.green { background: var(--green); }
.btn.green:hover { background: #43A047; }
.filters { background: var(--card); border: 1px solid var(--border); border-radius: 6px; padding: 12px; margin-bottom: 12px; }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; align-items: center; }
.filter-row label { font-size: 12px; color: var(--muted); margin-right: 4px; }
.filter-row select, .filter-row input[type="text"], .filter-row input[type="date"] { padding: 4px 8px; border: 1px solid var(--border); border-radius: 4px; font-size: 13px; }
.filter-row input[type="text"] { min-width: 200px; flex: 1; }
.filter-actions { display: flex; gap: 8px; }
.results-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.results-table th { background: #f0f0f0; padding: 6px 8px; text-align: left; border-bottom: 1px solid var(--border); cursor: pointer; white-space: nowrap; user-select: none; }
.results-table th:hover { background: #e8e8e8; }
.results-table td { padding: 5px 8px; border-bottom: 1px solid #eee; }
.results-table tr:hover td { background: var(--hover); }
.results-table .doc-title { max-width: 400px; cursor: pointer; color: var(--accent); }
.results-table .doc-title:hover { text-decoration: underline; }
.results-table .tag { background: var(--tag-bg); color: var(--tag-text); padding: 1px 6px; border-radius: 10px; font-size: 10px; white-space: nowrap; }
.pagination { display: flex; gap: 6px; justify-content: center; padding: 12px; align-items: center; flex-wrap: wrap; }
.pagination .pg-info { color: var(--muted); font-size: 12px; }
.pagination .pg-btn { padding: 4px 10px; border: 1px solid var(--border); border-radius: 4px; cursor: pointer; background: var(--card); font-size: 13px; }
.pagination .pg-btn:hover:not(.disabled) { background: var(--hover); }
.pagination .pg-btn.disabled { color: #ccc; cursor: default; }
.pagination .pg-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Thesis styles */
.thesis-stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; margin-bottom: 12px; }
.thesis-stat-card { background: var(--card); border: 1px solid var(--border); border-radius: 6px; padding: 10px; text-align: center; }
.thesis-stat-card .stat-num { font-size: 24px; font-weight: 700; color: var(--accent); }
.thesis-stat-card .stat-label { font-size: 11px; color: var(--muted); }
.score-badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 600; }
.score-5 { background: #c8e6c9; color: #2e7d32; }
.score-4 { background: #dcedc8; color: #558b2f; }
.score-3 { background: #fff9c4; color: #f57f17; }
.score-2 { background: #ffe0b2; color: #e65100; }
.score-1 { background: #ffcdd2; color: #c62828; }
.score-0 { background: #eee; color: #999; }
.boundary-badge { background: var(--green-bg); color: #2E7D32; padding: 2px 6px; border-radius: 4px; font-size: 10px; font-weight: 600; }
.loophole-badge { background: #fff3e0; color: #e65100; padding: 2px 6px; border-radius: 4px; font-size: 10px; font-weight: 600; }
.ai-tag { display: inline-block; background: #f3e5f5; color: #6a1b9a; padding: 2px 8px; border-radius: 10px; font-size: 10px; margin: 1px; cursor: pointer; }
.ai-tag:hover { background: #e1bee7; }
.active-tag-filter { background: #ffcc02 !important; color: #333 !important; font-weight: 700; }

/* Doc viewer */
.doc-viewer { background: var(--card); border: 1px solid var(--border); border-radius: 6px; padding: 16px; }
.doc-viewer .meta-grid { display: grid; grid-template-columns: 120px 1fr; gap: 4px; margin-bottom: 16px; font-size: 13px; }
.doc-viewer .meta-grid .meta-label { color: var(--muted); font-weight: 600; }
.doc-viewer .keyword-chip { display: inline-block; background: var(--tag-bg); color: var(--tag-text); padding: 3px 10px; border-radius: 12px; font-size: 11px; margin: 2px; }
.doc-viewer .doc-text { white-space: pre-wrap; font-size: 13px; line-height: 1.6; max-width: 900px; max-height: 600px; overflow-y: auto; border: 1px solid #eee; padding: 12px; background: #fafafa; border-radius: 4px; }
.accordion { border: 1px solid var(--border); border-radius: 4px; margin: 8px 0; }
.accordion-header { padding: 8px 12px; cursor: pointer; background: #f5f5f5; font-weight: 600; font-size: 13px; }
.accordion-header:hover { background: #eee; }
.accordion-body { display: none; padding: 8px 12px; }
.accordion-body.show { display: block; }

.hl-indicator-miss { background: var(--red-bg) !important; color: var(--red) !important; }
.doc-view-btn[disabled] { opacity: 0.45; cursor: not-allowed; }
.hidden { display: none !important; }
@media (max-width: 768px) {
    #topbar { flex-wrap: nowrap; height: var(--nav-height); padding: 0 8px; gap: 2px; overflow-x: auto; }
    #topbar h1 { font-size: 13px; }
    #topbar .nav a { font-size: 11px; padding: 3px 6px; }
    #topbar .stats { display: none; }
    #main-layout { flex-direction: column; height: calc(100dvh - var(--nav-height)); }
    /* Doc-pane as overlay bottom sheet on mobile — doesn't steal space from chat */
    #doc-pane { position: fixed; bottom: 0; left: 0; right: 0; width: 100% !important; height: 70dvh; max-height: 70dvh; border-left: none; border-top: 2px solid var(--accent); z-index: 50; border-radius: 12px 12px 0 0; box-shadow: 0 -4px 20px rgba(0,0,0,0.15); }
    .doc-pane-resize { display: none; }
    .chat-msg { max-width: 92%; font-size: 13px; padding: 8px 10px; }
    #chat-messages { padding: 8px; gap: 8px; }
    .tree-panel { width: 100%; max-height: 40vh; border-right: none; border-bottom: 1px solid var(--border); }
}

/* ===== AUTH OVERLAY ===== */
#auth-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.6);z-index:9999;display:flex;align-items:center;justify-content:center}
#auth-card{background:#fff;border-radius:12px;padding:32px 28px;width:100%;max-width:380px;box-shadow:0 8px 40px rgba(0,0,0,0.25)}
#auth-card h2{font-size:20px;margin:0 0 4px;color:#222}
#auth-card .sub{font-size:13px;color:var(--muted);margin-bottom:20px}
#auth-card input{width:100%;padding:10px 14px;margin-bottom:10px;font-size:14px;border:1px solid var(--border);border-radius:6px;box-sizing:border-box;font-family:system-ui,sans-serif}
#auth-card input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(33,150,243,0.15)}
#auth-card button{width:100%;padding:11px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;border:none;border-radius:6px;cursor:pointer;margin-top:4px}
#auth-card button:hover:not(:disabled){background:var(--accent-dark)}
#auth-card button:disabled{opacity:0.6;cursor:default}
#auth-card .error{background:var(--red-bg);color:var(--red);padding:8px 12px;border-radius:6px;font-size:13px;margin-bottom:12px;display:none}
#auth-name-field{display:none;margin-bottom:12px}
.session-item:hover{background:var(--hover)}
.active-session{background:var(--accent)!important;color:#fff!important}
@media (max-width: 768px) {
    #session-sidebar {
        position: fixed; top: var(--nav-height); left: 0; bottom: 0;
        z-index: 200; box-shadow: 2px 0 12px rgba(0,0,0,0.15);
        width: 260px; display: none;
    }
    #session-sidebar.open { display: flex; }
    #sidebar-toggle { display: none !important; }
    #chat-sessions-btn { display: inline-block; }
}
@media (min-width: 769px) {
    #chat-sessions-btn { display: none; }
}
.tool-log-wrap{max-width:85%;align-self:flex-start;margin:6px 0}
.tool-log-toggle{display:flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--border);border-radius:8px;background:#fafafa;cursor:pointer;font-size:12px;color:var(--muted);width:100%}
.tool-log-toggle:hover{background:var(--hover)}
.tool-log-toggle .arrow{transition:transform .2s;font-size:10px}
.tool-log-toggle:not(.collapsed) .arrow{transform:rotate(90deg)}
.tool-log-count{color:var(--accent);font-weight:500;font-size:11px;margin-left:4px}
.tool-log-body{display:none;background:#1e1e1e;color:#a0a0a0;padding:10px 14px;border-radius:0 0 8px 8px;font-family:monospace;font-size:11px;line-height:1.5;max-height:300px;overflow-y:auto;white-space:pre-wrap;margin:0;border:1px solid var(--border);border-top:none}
.tool-log-body.open{display:block;min-height:60px}
.process-table{width:100%;border-collapse:collapse;font-size:12px}
.process-table th{text-align:left;padding:6px 8px;border-bottom:1px solid var(--border);color:var(--muted);font-weight:600;background:#fafafa}
.process-table td{padding:5px 8px;border-bottom:1px solid #f0f0f0}


.tool-log-wrap{border:1px solid var(--border);border-radius:8px;margin:4px 0;max-width:90%;align-self:flex-start;background:#fafafa}
.tool-log-header{display:flex;align-items:center;gap:6px;padding:6px 10px;cursor:pointer;font-size:12px;color:var(--muted);user-select:none}
.tool-log-header:hover{background:var(--hover)}
.tool-log-header .arrow{font-size:10px;transition:transform .2s}
.tool-log-header.open .arrow{transform:rotate(90deg)}
.tool-log-header .status{flex:1}
.tool-log-content{display:none;background:#1e1e1e;color:#a0a0a0;padding:8px 12px;font-family:monospace;font-size:10px;line-height:1.4;max-height:250px;overflow-y:auto;white-space:pre-wrap;border-top:1px solid var(--border);border-radius:0 0 8px 8px}
.tool-log-content.open{display:block}