:root{--bg-primary: #ffffff;--bg-secondary: #f6f8fa;--bg-tertiary: #f0f0f0;--bg-hover: #e8e8e8;--text-primary: #1f2328;--text-secondary: #656d76;--border-color: #d0d7de;--accent-color: #5b5fc7;--accent-secondary: #8b5cf6;--color-property: #0550ae;--color-string: #0a3069;--color-number: #cf222e;--color-boolean: #cf222e;--color-type: #8250df;--color-null: #656d76;--color-tree-line: #c0c0c0}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.5}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:5px;border:2px solid var(--bg-secondary)}::-webkit-scrollbar-thumb:hover{background:var(--bg-hover)}.app{display:flex;flex-direction:column;height:100%}.app-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 2rem;background:var(--bg-secondary);border-bottom:1px solid var(--border-color)}.app-header h1{font-size:1.25rem;font-weight:600;background:linear-gradient(135deg,var(--accent-color),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.file-name{padding:.5rem 1rem;background:var(--bg-tertiary);border-radius:6px;font-size:.875rem;color:var(--text-secondary);font-family:JetBrains Mono,monospace}.app-main{flex:1;overflow:hidden;display:flex;flex-direction:column}.viewer-container{flex:1;display:flex;flex-direction:column;overflow:hidden}.split-view{flex:1;display:flex;overflow:hidden}.split-pane{overflow:auto}.split-pane.left{flex:1;min-width:300px;border-right:1px solid var(--border-color)}.split-pane.right{flex:1;min-width:400px}.split-divider{width:4px;background:var(--border-color);cursor:col-resize;flex-shrink:0}.split-divider:hover{background:var(--accent-color)}.toolbar{padding:.75rem 1rem;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);display:flex;gap:.5rem}.toolbar .btn-secondary{padding:.5rem 1rem;font-size:.875rem}.toolbar-status{margin-left:auto;padding:.4rem .8rem;font-size:.8rem;border-radius:4px}.toolbar-status.error{background:#ef444426;color:#dc2626}.parse-error-banner{margin:0;padding:1rem 1.5rem;background:#ef444414;border-bottom:1px solid rgba(239,68,68,.2)}.parse-error-banner .error-title{font-weight:600;color:#dc2626;margin-bottom:.25rem}.parse-error-banner .error-message{margin:0;padding:0;background:none;border:none;color:var(--text-primary);font-family:JetBrains Mono,monospace;font-size:.85rem;white-space:pre-wrap;word-break:break-word}.parse-error-banner .error-hint{margin-top:.5rem;font-size:.8rem;color:var(--text-secondary)}.drop-zone{display:flex;align-items:center;justify-content:center;min-height:400px;border:3px dashed var(--border-color);border-radius:16px;background:var(--bg-secondary);transition:all .3s ease;margin:2rem}.drop-zone.dragging{border-color:var(--accent-color);background:#6366f11a;transform:scale(1.02)}.drop-zone-content{text-align:center;padding:3rem}.drop-icon{font-size:4rem;margin-bottom:1rem;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.drop-zone h2{color:var(--text-primary);margin-bottom:.5rem;font-weight:600}.drop-zone p{color:var(--text-secondary);margin-bottom:2rem}.drop-zone-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn-primary,.btn-secondary{padding:.75rem 1.5rem;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease;border:none}.btn-primary{background:linear-gradient(135deg,var(--accent-color),var(--accent-secondary));color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 12px #6366f166}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-hover);border-color:var(--accent-color)}.tree-root{font-family:JetBrains Mono,Fira Code,Consolas,monospace;font-size:13px;line-height:1.5;list-style:none;margin:0;padding:0}.tree-node{position:relative;list-style:none;margin:0;padding:0 0 0 16px}.tree-node:before{content:"";position:absolute;left:7px;top:0;bottom:0;width:1px;background:var(--color-tree-line, #d0d0d0)}.tree-node.last:before{height:12px}.tree-node:after{content:"";position:absolute;left:7px;top:11px;width:9px;height:1px;background:var(--color-tree-line, #d0d0d0)}.tree-root>.tree-node:before,.tree-root>.tree-node:after{display:none}.tree-row{display:inline-flex;align-items:center;gap:4px;padding:2px 6px 2px 0;border-radius:3px;cursor:default;transition:background .1s ease}.tree-row.expandable{cursor:pointer}.tree-row:hover{background:var(--bg-hover)}.tree-row.selected{background:#3b82f640;border-left:2px solid #3b82f6;margin-left:-2px}.tree-toggle{width:14px;height:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.tree-icon{width:10px;height:10px;color:var(--text-secondary);transition:color .1s ease}.tree-row.expandable:hover .tree-icon{color:var(--text-primary)}.tree-name{color:var(--color-property);font-weight:500}.tree-colon{color:var(--text-secondary)}.tree-type{color:var(--color-type);font-size:12px}.tree-equals{color:var(--text-secondary);margin:0 2px}.tree-value.value-number{color:var(--color-number)}.tree-value.value-string{color:var(--color-string)}.tree-value.value-boolean{color:var(--color-boolean)}.tree-value.value-null{color:var(--color-null);font-style:italic}.tree-value.value-enum{color:var(--color-number)}.tree-value.value-bytes{color:var(--text-secondary);font-family:inherit}.tree-value-suffix{color:var(--text-secondary);opacity:.6;margin-left:4px}.tree-children{list-style:none;margin:0;padding:0}.tree-children.collapsed{display:none}.parse-tree-viewer{height:100%;overflow:auto}.tree-container{padding:1rem;min-width:max-content}.hex-viewer{display:flex;flex-direction:column;height:100%;font-family:JetBrains Mono,Fira Code,Consolas,monospace;font-size:12px;background:var(--bg-primary)}.hex-header{display:flex;padding:8px 12px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);color:var(--text-secondary);font-weight:500;position:sticky;top:0;z-index:1}.hex-offset-header{width:72px;flex-shrink:0;margin-right:12px}.hex-bytes-header{display:flex}.hex-bytes-header span{width:20px;text-align:center}.hex-bytes-header span:last-child{margin-right:0}.hex-ascii-header{width:140px;flex-shrink:0;text-align:center;margin-left:12px;padding-left:12px;border-left:1px solid var(--border-color)}.hex-content{flex:1;overflow-y:auto;padding:4px 0}.hex-row{display:flex;padding:1px 12px;line-height:1.6}.hex-row:hover{background:var(--bg-hover)}.hex-offset{width:72px;flex-shrink:0;color:var(--color-type);margin-right:12px}.hex-bytes{display:flex}.hex-byte{width:20px;text-align:center;color:var(--text-primary);border-radius:0}.hex-byte:last-child{margin-right:0}.hex-byte:hover{background:var(--bg-hover)!important;outline:1px solid var(--border-color)}.hex-byte.highlighted{background:var(--accent-color)!important;color:#fff!important;box-shadow:0 0 0 1px #fff inset}.hex-padding{display:inline-block}.hex-padding-byte{width:20px;display:inline-block;margin-right:4px}.hex-ascii{width:140px;flex-shrink:0;display:flex;margin-left:12px;padding-left:12px;border-left:1px solid var(--border-color)}.hex-ascii-char{width:8px;text-align:center;color:var(--text-secondary);border-radius:1px}.hex-ascii-char:hover{background:var(--bg-hover)!important}