:root{--bg: #f7f7f5;--fg: #1c1c1c;--accent: #2a4d69;--unv: #ffd9d9;--unv-border: #c0392b;--grd: #d9f0e1;--muted: #6b6b6b;--border: #d8d8d4}*{box-sizing:border-box}body{margin:0;font-family:system-ui,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--fg)}header{background:var(--accent);color:#fff;padding:12px 20px;display:flex;align-items:center;gap:16px}header h1{font-size:18px;margin:0}header .spacer{flex:1}header button{background:#ffffff26;color:#fff;border:1px solid rgba(255,255,255,.3)}nav{display:flex;gap:8px;padding:12px 20px 0}nav button.active{background:var(--accent);color:#fff}main{padding:20px;max-width:1100px;margin:0 auto}button{cursor:pointer;border:1px solid var(--border);background:#fff;padding:8px 14px;border-radius:6px;font-size:14px}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}textarea,input,select{width:100%;padding:10px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit}textarea{min-height:90px;resize:vertical}.row{display:flex;gap:16px}.col{flex:1}.card{background:#fff;border:1px solid var(--border);border-radius:8px;padding:16px;margin-bottom:16px}.muted{color:var(--muted);font-size:13px}.badge{font-size:12px;padding:2px 8px;border-radius:10px}.badge.unverified{background:var(--unv);color:var(--unv-border)}.badge.grounded,.badge.approved,.badge.overridden{background:var(--grd);color:#1d6b3f}mark.unv{background:var(--unv);border-bottom:2px solid var(--unv-border)}mark.grd{background:var(--grd)}.mark-unv{background:var(--unv);border-bottom:2px solid var(--unv-border);cursor:pointer}.mark-grd{background:var(--grd);cursor:pointer}.dropzone{border:2px dashed var(--border);border-radius:8px;padding:22px;text-align:center;color:#667;cursor:pointer;margin:10px 0;background:#fcfcfd}.dropzone.over{border-color:var(--accent);background:#f0f6ff}.preview{white-space:pre-wrap;line-height:1.6;border:1px solid var(--border);padding:14px;border-radius:6px;background:#fff}.cite{border-left:3px solid var(--accent);padding:6px 10px;margin:8px 0;background:#fafafa;font-size:13px}.flag{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid var(--border)}.flag .grow{flex:1}.login-box{max-width:360px;margin:80px auto}.ProseMirror{min-height:200px;outline:none;border:1px solid var(--border);padding:14px;border-radius:6px;background:#fff;line-height:1.6}.notice{background:#fff8e1;border:1px solid #f0d98c;padding:10px 12px;border-radius:6px;font-size:13px}.ok{color:#1d6b3f}.err{color:var(--unv-border)}