:root{--ink: #1c2733;--ink-soft: #52616f;--paper: #f6f7f9;--card: #ffffff;--line: #dde3e9;--accent: #1f4e79;--accent-soft: #e8eff6;--danger: #a4262c;--ok: #0f7b48;font-family:Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-size:15px}h1,h2,h3{font-weight:600}a{color:var(--accent);text-decoration:none}.app-shell{display:flex;min-height:100vh;flex-direction:column}.topbar{display:flex;align-items:center;gap:16px;background:var(--card);border-bottom:1px solid var(--line);padding:10px 24px}.topbar .brand{font-weight:700;font-size:17px;color:var(--accent)}.topbar .spacer{flex:1}.topbar .user{color:var(--ink-soft);font-size:13px}.main{max-width:1080px;width:100%;margin:0 auto;padding:28px 24px}.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:24px;margin-bottom:20px}.btn{display:inline-block;border:1px solid var(--accent);background:var(--accent);color:#fff;border-radius:6px;padding:8px 18px;font-size:14px;cursor:pointer}.btn:hover{filter:brightness(1.1)}.btn.secondary{background:var(--card);color:var(--accent)}.btn:disabled{opacity:.5;cursor:default}label{display:block;font-size:13px;color:var(--ink-soft);margin:14px 0 4px}input[type=text],input[type=email],input[type=password],textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:6px;font-size:14px;font-family:inherit}input:focus,textarea:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}.error-banner{background:#fdf3f4;border:1px solid #efc7c9;color:var(--danger);border-radius:6px;padding:10px 14px;margin:12px 0;font-size:14px}.hint{color:var(--ink-soft);font-size:13px;margin-top:4px}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh}.auth-card{width:400px}.auth-card h1{text-align:center;color:var(--accent)}table.data{width:100%;border-collapse:collapse}table.data th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);border-bottom:2px solid var(--line);padding:8px 10px}table.data td{border-bottom:1px solid var(--line);padding:10px}table.data tr:hover td{background:var(--accent-soft)}.empty-state{text-align:center;color:var(--ink-soft);padding:48px 0}.workflow-rail{display:flex;gap:4px;margin:18px 0 24px;flex-wrap:wrap}.workflow-step{flex:1;min-width:96px;text-align:center;font-size:12px;padding:8px 4px;border-radius:6px;background:var(--card);border:1px solid var(--line);color:var(--ink-soft)}.workflow-step.current{border-color:var(--accent);color:var(--accent);font-weight:600}.workflow-step .num{display:inline-block;width:18px;height:18px;line-height:18px;border-radius:50%;background:var(--line);margin-right:4px;font-size:11px}.workflow-step.current .num{background:var(--accent);color:#fff}.workflow-step.done{border-color:var(--ok);color:var(--ok)}.workflow-step.done .num{background:var(--ok);color:#fff}button.workflow-step{cursor:pointer;font:inherit}button.workflow-step:hover{border-color:var(--accent)}.workflow-step.viewing{outline:2px solid var(--accent);outline-offset:1px;background:var(--accent-soft)}.dropzone{border:2px dashed var(--line);border-radius:8px;padding:40px;text-align:center;color:var(--ink-soft);cursor:pointer;transition:border-color .15s,background .15s}.dropzone.over,.dropzone:hover{border-color:var(--accent);background:var(--accent-soft)}.stat-row{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0}.stat{flex:1;min-width:130px;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:12px;text-align:center}.stat-value{font-size:26px;font-weight:700;color:var(--accent)}.stat-label{font-size:12px;color:var(--ink-soft);margin-top:2px}.info-banner{background:var(--accent-soft);border:1px solid #c4d6e8;border-radius:6px;padding:10px 14px;margin:12px 0;font-size:14px}.tree-toggle{border:none;background:none;cursor:pointer;font-size:13px;color:var(--ink-soft);padding:0 6px 0 0}.drawer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#141e2873;z-index:40}.drawer{position:fixed;top:0;right:0;bottom:0;width:min(760px,90vw);background:var(--card);box-shadow:-4px 0 24px #0003;display:flex;flex-direction:column;z-index:41}.drawer-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line)}.drawer-frame{flex:1;border:none;width:100%}.doc-link{background:none;border:none;color:var(--accent);cursor:pointer;font:inherit;padding:0;text-align:left}.doc-link:hover{text-decoration:underline}.dupe-group{border:1px solid var(--line);border-radius:8px;padding:14px;margin:14px 0}.dupe-members{display:flex;gap:12px;margin-top:10px;flex-wrap:wrap}.dupe-member{flex:1;min-width:280px}.dupe-preview{width:100%;height:320px;border:1px solid var(--line);border-radius:6px;margin-top:6px;background:#fff}.btn-sm{padding:4px 10px;font-size:12px}.redact-canvas{position:relative;display:inline-block;cursor:crosshair;-webkit-user-select:none;user-select:none;border:1px solid var(--line)}.redact-canvas img{display:block;max-width:100%}.redact-box{position:absolute;background:#000000e0;border:1px solid #000;cursor:pointer}.redact-box.drawing{background:#1f4e7966;border:1px dashed var(--accent)}select{padding:7px 10px;border:1px solid var(--line);border-radius:6px;font-size:14px;font-family:inherit;background:var(--card);max-width:100%}.settings-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}.settings-grid>div{min-width:0}.settings-grid select,.settings-grid input{width:100%}.chat-log{min-height:240px;max-height:55vh;overflow-y:auto;border:1px solid var(--line);border-radius:8px;padding:14px;display:flex;flex-direction:column;gap:12px;background:var(--paper)}.chat-msg{display:flex}.chat-msg.user{justify-content:flex-end}.chat-bubble{max-width:78%;padding:10px 14px;border-radius:12px;background:var(--card);border:1px solid var(--line)}.chat-msg.user .chat-bubble{background:var(--accent);color:#fff;border-color:var(--accent)}.chat-citations{margin-top:8px;padding-top:8px;border-top:1px solid var(--line);font-size:13px}.chat-citation{margin-top:4px}.issue-chip{display:inline-block;background:var(--accent-soft);color:var(--accent);border-radius:12px;padding:2px 10px;font-size:12px;margin:2px 4px 2px 0}