:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#1e1e1e;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;overflow:hidden}#root{width:100vw;height:100vh;overflow:hidden}button{border-radius:4px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#2d2d30;color:#ccc;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:2px solid #0e639c}.editor-container{display:flex;flex-direction:column;height:100vh;background-color:#1e1e1e;color:#ccc;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}.toolbar{display:flex;align-items:center;gap:16px;padding:8px 16px;background-color:#252526;border-bottom:1px solid #3e3e42;height:48px;flex-shrink:0}.toolbar-group{display:flex;align-items:center;gap:8px}.toolbar-separator{width:1px;height:24px;background-color:#3e3e42}.btn{padding:6px 12px;background-color:#2d2d30;border:1px solid #3e3e42;border-radius:4px;color:#ccc;cursor:pointer;font-size:13px;transition:all .2s;white-space:nowrap}.btn:hover{background-color:#3e3e42;border-color:#0e639c}.btn.active{background-color:#0e639c;border-color:#0e639c;color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed}.file-input-wrapper{position:relative;display:inline-block}.file-input-wrapper input[type=file]{position:absolute;opacity:0;width:100%;height:100%;cursor:pointer}.file-input-label{display:inline-block;padding:6px 12px;background-color:#2d2d30;border:1px solid #3e3e42;border-radius:4px;color:#ccc;cursor:pointer;font-size:13px;transition:all .2s}.file-input-wrapper:hover .file-input-label{background-color:#3e3e42;border-color:#0e639c}.workspace{display:flex;flex:1;overflow:hidden}.left-panel{width:280px;background-color:#252526;border-right:1px solid #3e3e42;display:flex;flex-direction:column;overflow-y:auto}.panel-header{padding:12px 16px;background-color:#2d2d30;border-bottom:1px solid #3e3e42;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:#999}.panel-content{padding:16px}.tileset-picker{display:flex;flex-wrap:wrap;gap:2px;background-color:#1e1e1e;padding:8px;border-radius:4px;max-height:500px;overflow-y:auto}.tileset-picker::-webkit-scrollbar{width:8px}.tileset-picker::-webkit-scrollbar-track{background:#1e1e1e}.tileset-picker::-webkit-scrollbar-thumb{background:#3e3e42;border-radius:4px}.tileset-picker::-webkit-scrollbar-thumb:hover{background:#4e4e52}.tile-item{border:2px solid transparent;cursor:pointer;transition:all .2s}.tile-item:hover{border-color:#646464}.tile-item.selected{border-color:#0e639c;box-shadow:0 0 8px #0e639c80}.load-tileset-btn{width:100%;padding:12px;background-color:#0e639c;border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s;margin-bottom:16px}.load-tileset-btn:hover{background-color:#17b}.canvas-container{flex:1;display:flex;align-items:center;justify-content:center;background-color:#1e1e1e;background-image:linear-gradient(45deg,#2a2a2a 25%,transparent 25%),linear-gradient(-45deg,#2a2a2a 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#2a2a2a 75%),linear-gradient(-45deg,transparent 75%,#2a2a2a 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px;overflow:hidden;position:relative}.canvas-wrapper{box-shadow:0 4px 20px #00000080}.right-panel{width:300px;background-color:#252526;border-left:1px solid #3e3e42;display:flex;flex-direction:column;overflow-y:auto}.panel-section{border-bottom:1px solid #3e3e42}.section-content{padding:16px}.property-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-size:13px}.property-label{color:#999}.property-value{color:#ccc;font-weight:500}.layer-list{display:flex;flex-direction:column;gap:4px}.layer-item{display:flex;align-items:center;padding:8px 12px;background-color:#2d2d30;border-radius:4px;cursor:pointer;transition:all .2s}.layer-item:hover{background-color:#3e3e42}.layer-item.active{background-color:#0e639c;color:#fff}.layer-name{flex:1;font-size:13px}.status-bar{display:flex;align-items:center;gap:16px;padding:4px 16px;background-color:#007acc;color:#fff;font-size:12px;height:24px;flex-shrink:0}.status-item{display:flex;align-items:center;gap:4px}.status-separator{width:1px;height:16px;background-color:#ffffff4d}.mode-indicator{padding:2px 8px;background-color:#fff3;border-radius:3px;font-weight:500}.left-panel::-webkit-scrollbar,.right-panel::-webkit-scrollbar{width:10px}.left-panel::-webkit-scrollbar-track,.right-panel::-webkit-scrollbar-track{background:#1e1e1e}.left-panel::-webkit-scrollbar-thumb,.right-panel::-webkit-scrollbar-thumb{background:#3e3e42;border-radius:5px}.left-panel::-webkit-scrollbar-thumb:hover,.right-panel::-webkit-scrollbar-thumb:hover{background:#4e4e52}.no-tileset-message{text-align:center;color:#999;font-size:13px;padding:32px 16px}