:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0f1115;--panel:#1a1d24;--border:#2b2f38;--text:#e5e7eb;--muted:#9aa3b2;--accent:#62a0ff;--danger:#ff6464;--warn:#ffc857;font-family:-apple-system,BlinkMacSystemFont,Inter,sans-serif}*{box-sizing:border-box}html,body,#root{background:var(--bg);height:100%;color:var(--text);margin:0;padding:0}button{background:var(--panel);color:var(--text);border:1px solid var(--border);cursor:pointer;border-radius:4px;padding:6px 10px;font-size:13px}button:hover:not(:disabled){border-color:var(--accent)}button:disabled{opacity:.4;cursor:default}button.active{background:var(--accent);color:#0f1115;border-color:var(--accent)}input[type=text]{background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:4px;padding:8px 10px;font-family:monospace;font-size:13px}.app{grid-template-rows:auto 1fr;height:100vh;display:grid}.topbar{box-sizing:border-box;background:var(--panel);border-bottom:1px solid var(--border);flex-direction:column;justify-content:center;gap:4px;height:80px;padding:6px 12px;display:flex}.topbar-row{align-items:center;gap:8px;min-width:0;display:flex}.topbar-spacer{flex:1}.topbar-brand{font-size:16px;font-weight:600}.topbar-dataset{max-width:360px}.topbar .progress{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-family:monospace;font-size:12px;overflow:hidden}.topbar .progress .session-stat{color:var(--accent,#5ea0ff)}.rater-name{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;max-width:220px;font-size:12px;overflow:hidden}.save-pill{white-space:nowrap;border-radius:4px;padding:2px 8px;font-size:12px}.save-pill.ok{color:#9be3b4;background:#3cc8642e}.save-pill.pending{color:#f5c581;background:#dca03c2e}.save-pill.error{color:#ff8b8b;background:#dc3c3c33}.main{grid-template-columns:260px 1fr 220px;display:grid;overflow:hidden}.sidebar{background:var(--panel);border-right:1px solid var(--border);padding:8px;overflow:auto}.sidebar.right{border-right:none;border-left:1px solid var(--border)}.sidebar h3{text-transform:uppercase;color:var(--muted);margin:10px 4px 4px;font-size:11px}.sidebar .region-item{cursor:pointer;border:1px solid #0000;border-radius:4px;padding:6px 8px;font-size:12px;line-height:1.4}.sidebar .region-item:hover{background:#232732}.sidebar .region-item.active{border-color:var(--accent);background:#1d3154}.sidebar .region-item .meta{color:var(--muted);font-size:11px}.canvas-wrap{background:#06080c;position:relative;overflow:hidden}canvas.tile-canvas{cursor:crosshair;-webkit-user-select:none;user-select:none;display:block}.login{justify-content:center;align-items:center;height:100%;display:flex}.login form{background:var(--panel);border:1px solid var(--border);border-radius:8px;flex-direction:column;gap:12px;width:360px;padding:24px;display:flex}.login h1{margin:0 0 8px;font-size:16px}.login .hint{color:var(--muted);font-size:11px;line-height:1.4}.login .err{color:var(--danger);font-size:12px}.class-palette button{justify-content:space-between;align-items:center;width:100%;margin-bottom:4px;font-size:13px;display:flex}.class-palette .swatch{border:1px solid #fff3;border-radius:2px;width:14px;height:14px;margin-right:8px}.class-palette .kbd{color:var(--muted);margin-left:auto;font-family:monospace;font-size:11px}.brush-picker{gap:4px;display:flex}.brush-picker button{flex:1;padding:6px 0}.status{color:var(--muted);margin-top:12px;font-size:11px;line-height:1.5}