:root{--bg-surface: #eceae6;--bg-page: #ffffff;--chrome-bg: #faf6f2;--accent: #ad5a3c;--accent-soft: rgba(173, 90, 60, .12);--text: #2a2622;--text-muted: #8a817a;--border: #e7ded5;--danger: #b42318;--danger-soft: rgba(180, 35, 24, .1);--radius: 8px;--shadow: 0 1px 2px rgba(40, 30, 20, .07);--shadow-page: 0 4px 18px rgba(40, 30, 20, .12);--font-ui: system-ui, -apple-system, sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, monospace;font-family:var(--font-ui)}*{box-sizing:border-box}body{margin:0;background:var(--bg-surface);color:var(--text)}.app{display:flex;flex-direction:column;height:100vh}.workspace{flex:1;display:flex;min-height:0}.toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:6px;padding:8px 12px;background:var(--chrome-bg);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.cluster{display:flex;align-items:center;gap:4px}.toolbar .sep{width:1px;align-self:stretch;background:var(--border);margin:2px 4px}.toolbar .spacer{flex:1}.icon-button{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:34px;min-width:34px;padding:0 8px;border:1px solid transparent;background:transparent;border-radius:var(--radius);color:var(--text);font-size:14px;cursor:pointer;transition:background .12s,border-color .12s,color .12s}.icon-button.has-label{padding:0 12px;border-color:var(--border);background:var(--bg-page)}.icon-button-label{font-size:14px}.icon-button:hover:not(:disabled){background:var(--accent-soft)}.icon-button.has-label:hover:not(:disabled){border-color:var(--accent)}.icon-button:disabled{opacity:.4;cursor:not-allowed}.icon-button.active,.icon-button.primary{background:var(--accent);border-color:var(--accent);color:#fff}.icon-button.primary:hover:not(:disabled){background:#97492f;border-color:#97492f}.icon-button.danger:hover:not(:disabled){background:var(--danger-soft);color:var(--danger)}.icon-button:focus-visible,.field input:focus-visible,.field select:focus-visible,.panel-row:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.field{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-muted)}.field-label{-webkit-user-select:none;user-select:none}.field input,.field select{height:30px;padding:0 8px;border:1px solid var(--border);border-radius:6px;background:var(--bg-page);color:var(--text);font-size:14px}.field input[type=number]{width:60px}.mono{font-family:var(--font-mono)}.color-field input[type=color]{width:30px;height:30px;padding:2px;cursor:pointer}.zoom-percent{display:flex;align-items:center;gap:2px}.zoom-percent input{width:48px;height:30px;padding:0 6px;text-align:right;border:1px solid var(--border);border-radius:6px;background:var(--bg-page);color:var(--text);font-size:14px}.zoom-percent .unit{font-size:13px;color:var(--text-muted)}.viewer{flex:1;min-width:0;overflow:auto;scrollbar-gutter:stable;padding:32px;display:flex;flex-direction:column;align-items:center;gap:28px}.empty{flex:1;display:grid;place-items:center;color:var(--text-muted)}.page{position:relative;background:var(--bg-page);box-shadow:var(--shadow-page)}.page-canvas{display:block}.annotation{position:absolute}.annotation-input{margin:0;padding:0;border:0;background:transparent;font-family:Helvetica,Arial,sans-serif;line-height:1;resize:none;overflow:hidden;white-space:pre;min-width:24px;outline:1px dashed transparent}.annotation.selected .annotation-input{outline:1px dashed var(--accent)}.annotation-input:focus{outline:1px solid var(--accent)}.annotation-bar{position:absolute;top:-24px;left:0;display:flex;gap:4px;opacity:0;transition:opacity .1s}.annotation-bar.below{top:auto;bottom:-24px}.annotation:hover .annotation-bar,.annotation.selected .annotation-bar{opacity:1}.annotation-handle,.annotation-delete{width:20px;height:20px;display:grid;place-items:center;border:0;border-radius:5px;color:#fff;font-size:12px;line-height:1;-webkit-user-select:none;user-select:none;box-shadow:var(--shadow)}.annotation-handle{background:var(--accent);cursor:move}.annotation-delete{background:var(--danger);cursor:pointer}.elements-panel{width:260px;flex-shrink:0;overflow:auto;padding:14px;background:var(--chrome-bg);border-left:1px solid var(--border)}.panel-title{margin:0 0 10px;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}.panel-empty{font-size:13px;color:var(--text-muted)}.panel-group{margin-bottom:14px}.panel-group-title{font-family:var(--font-mono);font-size:12px;font-weight:600;color:var(--text-muted);padding:4px 2px}.panel-row{display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:6px;cursor:pointer}.panel-row:hover{background:var(--accent-soft)}.panel-row.selected{background:var(--accent-soft);box-shadow:inset 2px 0 0 var(--accent)}.panel-badge{flex-shrink:0;font-size:10px;font-weight:600;padding:2px 7px;border-radius:999px;color:#fff;background:var(--text-muted)}.panel-badge.signature{background:var(--accent)}.panel-preview{flex:1;min-width:0;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text)}.panel-delete{flex-shrink:0;width:20px;height:20px;display:grid;place-items:center;border:0;border-radius:5px;background:transparent;color:var(--text-muted);font-size:14px;line-height:1;cursor:pointer}.panel-row:hover .panel-delete:hover{background:var(--danger-soft);color:var(--danger)}