[hidden]{display:none!important}:root{--bg: #f5f5f7;--surface: #ffffff;--border: #d1d5db;--text: #1a1a1a;--text-muted: #6b7280;--accent: #2563eb;--accent-hover: #1d4ed8;--success: #059669;--success-hover: #047857;--danger: #dc2626;--field-border: rgba(37, 99, 235, .5);--field-bg: rgba(37, 99, 235, .06);--field-selected: rgba(37, 99, 235, .15);--toolbar-bg: #ffffff;--toolbar-shadow: 0 1px 3px rgba(0,0,0,.08);--page-shadow: 0 2px 12px rgba(0,0,0,.1);--radius: 6px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #121214;--surface: #1e1e22;--border: #3a3a40;--text: #e5e5e7;--text-muted: #9ca3af;--accent: #3b82f6;--accent-hover: #60a5fa;--success: #10b981;--success-hover: #34d399;--danger: #ef4444;--field-border: rgba(59, 130, 246, .5);--field-bg: rgba(59, 130, 246, .08);--field-selected: rgba(59, 130, 246, .2);--toolbar-bg: #1e1e22;--toolbar-shadow: 0 1px 3px rgba(0,0,0,.3);--page-shadow: 0 2px 12px rgba(0,0,0,.4)}}:root[data-theme=dark]{--bg: #121214;--surface: #1e1e22;--border: #3a3a40;--text: #e5e5e7;--text-muted: #9ca3af;--accent: #3b82f6;--accent-hover: #60a5fa;--success: #10b981;--success-hover: #34d399;--danger: #ef4444;--field-border: rgba(59, 130, 246, .5);--field-bg: rgba(59, 130, 246, .08);--field-selected: rgba(59, 130, 246, .2);--toolbar-bg: #1e1e22;--toolbar-shadow: 0 1px 3px rgba(0,0,0,.3);--page-shadow: 0 2px 12px rgba(0,0,0,.4)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh}#app{display:flex;flex-direction:column;height:100vh}.toolbar{display:flex;align-items:center;gap:8px;padding:8px 16px;background:var(--toolbar-bg);border-bottom:1px solid var(--border);box-shadow:var(--toolbar-shadow);z-index:100;flex-wrap:wrap}.toolbar-group{display:flex;align-items:center;gap:4px}.toolbar-right{margin-left:auto}.toolbar-divider{width:1px;height:24px;background:var(--border);margin:0 4px}.btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);font-family:var(--font);font-size:13px;font-weight:500;cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap}.btn:hover{background:var(--bg);border-color:var(--text-muted)}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-success{background:var(--success);color:#fff;border-color:var(--success)}.btn-success:hover{background:var(--success-hover);border-color:var(--success-hover)}.tool-btn{padding:6px 8px;min-width:32px;justify-content:center}.tool-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.status-text{font-size:12px;color:var(--text-muted)}.workspace{flex:1;overflow-y:auto;display:flex;justify-content:center}.drop-zone{display:flex;align-items:center;justify-content:center;width:100%;min-height:100%;padding:48px;cursor:pointer}.drop-zone.drag-over .drop-zone-content,.drop-zone:hover .drop-zone-content,.drop-zone:focus-visible .drop-zone-content{border-color:var(--accent);background:var(--field-bg)}.drop-zone:focus{outline:none}.drop-zone:focus-visible .drop-zone-content{outline:2px solid var(--accent);outline-offset:3px}.drop-zone-content{display:flex;flex-direction:column;align-items:center;gap:12px;padding:48px 64px;border:2px dashed var(--border);border-radius:12px;color:var(--text-muted);transition:border-color .2s,background .2s;text-align:center}.drop-zone-title{font-size:18px;font-weight:600;color:var(--text)}.drop-zone-hint{font-size:13px}.pages{display:flex;flex-direction:column;align-items:center;gap:24px;padding:24px;width:100%}.pages[hidden],.drop-zone[hidden]{display:none}.page-wrapper{position:relative;box-shadow:var(--page-shadow);background:#fff;max-width:100%}.page-wrapper canvas{display:block;max-width:100%;height:auto}.field-overlay{position:absolute;top:0;left:0;width:100%;height:100%}.mode-text .field-overlay,.mode-textarea .field-overlay,.mode-checkbox .field-overlay{touch-action:none}.page-label{position:absolute;top:-22px;left:0;font-size:11px;color:var(--text-muted);font-weight:500}.mode-text .field-overlay,.mode-textarea .field-overlay,.mode-checkbox .field-overlay{cursor:crosshair}.field{position:absolute;border:1.5px solid var(--field-border);background:var(--field-bg);border-radius:2px;cursor:move;transition:border-color .1s,background .1s;touch-action:none}.field:hover{border-color:var(--accent)}.field.selected{border-color:var(--accent);background:var(--field-selected);z-index:10}.field-input{width:100%;height:100%;padding:1px 3px;border:none;background:transparent;color:#000;font-family:Helvetica,Arial,sans-serif;font-size:10px;outline:none;touch-action:auto;resize:none;cursor:inherit}.field-input:focus{cursor:text}.field-input::placeholder{color:#0000004d;font-style:italic}.field-checkbox{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:90%;height:90%;margin:0;cursor:pointer;accent-color:#000}.align-guide{position:absolute;background:var(--accent);pointer-events:none;z-index:20}.align-guide-v{top:0;bottom:0;width:1px}.align-guide-h{left:0;right:0;height:1px}.field .resize-handle{position:absolute;width:8px;height:8px;background:var(--accent);border:1px solid #fff;border-radius:1px;display:none}.field.selected .resize-handle{display:block}.resize-handle.nw{top:-4px;left:-4px;cursor:nw-resize}.resize-handle.ne{top:-4px;right:-4px;cursor:ne-resize}.resize-handle.sw{bottom:-4px;left:-4px;cursor:sw-resize}.resize-handle.se{bottom:-4px;right:-4px;cursor:se-resize}.resize-handle.n{top:-4px;left:50%;transform:translate(-50%);cursor:n-resize}.resize-handle.s{bottom:-4px;left:50%;transform:translate(-50%);cursor:s-resize}.resize-handle.e{right:-4px;top:50%;transform:translateY(-50%);cursor:e-resize}.resize-handle.w{left:-4px;top:50%;transform:translateY(-50%);cursor:w-resize}.field-label{position:absolute;top:-18px;left:0;font-size:10px;color:var(--accent);font-weight:500;white-space:nowrap;pointer-events:none;display:none}.field.selected .field-label,.field:hover .field-label{display:block}.field-delete{position:absolute;top:-8px;right:-8px;width:18px;height:18px;border-radius:50%;background:var(--danger);color:#fff;border:2px solid #fff;font-size:11px;line-height:14px;text-align:center;cursor:pointer;display:none;z-index:20}.field.selected .field-delete{display:flex;align-items:center;justify-content:center}.draw-preview{position:absolute;border:2px dashed var(--accent);background:#2563eb14;pointer-events:none;z-index:50}.detecting-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0000004d;display:flex;align-items:center;justify-content:center;z-index:100;border-radius:2px}.detecting-spinner{width:32px;height:32px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:640px){.toolbar{padding:6px 8px;gap:4px}.btn{padding:5px 8px;font-size:12px}.pages{padding:12px;gap:16px}.drop-zone-content{padding:32px}}