:root{--bg: #0b0d10;--surface: #14171c;--surface-raised: #1b1f26;--border: #262b33;--text: #e8eaed;--text-muted: #9aa3ad;--accent: #4c8dff;--radius: 8px;--header-height: 56px;--panel-width: 300px;color-scheme:dark;font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}h1,h2,p{margin:0}button{font:inherit;color:inherit}.app-shell{display:flex;flex-direction:column;height:100%;min-height:100vh}.app-header{display:flex;align-items:center;justify-content:space-between;gap:16px;height:var(--header-height);padding:0 20px;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0}.app-brand{display:flex;align-items:center;gap:10px}.app-logo{width:22px;height:22px;border-radius:6px;background:linear-gradient(135deg,var(--accent),#8b5cf6)}.app-title{font-size:16px;font-weight:600;letter-spacing:-.01em}.app-tagline{font-size:12px;color:var(--text-muted)}.app-header-actions{display:flex;align-items:center;gap:12px}.open-image-button{padding:7px 14px;font-size:13px;font-weight:500;color:#fff;background:var(--accent);border:1px solid transparent;border-radius:6px;cursor:pointer;transition:background .15s ease,transform .05s ease}.open-image-button:hover{background:#3d7ceb}.open-image-button:active{transform:translateY(1px)}.open-image-button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.file-input-hidden{display:none}.app-body{display:flex;flex:1;min-height:0}.canvas-area{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;padding:24px;overflow:auto}.drop-zone{position:relative;flex:1;align-self:stretch;display:flex;align-items:center;justify-content:center;min-width:0;border-radius:var(--radius)}.drop-zone-active{outline:2px dashed var(--accent);outline-offset:4px}.drop-zone-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#4c8dff1f;border:2px dashed var(--accent);border-radius:var(--radius);pointer-events:none;z-index:2}.drop-zone-label{padding:10px 18px;font-size:14px;font-weight:600;color:#fff;background:var(--accent);border-radius:999px;box-shadow:0 6px 20px #00000059}.canvas-stage{display:flex;align-items:center;justify-content:center;width:100%;max-width:900px;min-height:420px;padding:32px;background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius)}.canvas-stage-filled{padding:16px;border-style:solid}.image-canvas{display:block;max-width:100%;max-height:70vh;width:auto;height:auto;border-radius:4px;box-shadow:0 8px 30px #0006}.empty-state{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;color:var(--text-muted)}.empty-icon{color:var(--text-muted);opacity:.7;margin-bottom:4px}.empty-title{font-size:15px;font-weight:500;color:var(--text)}.empty-hint{font-size:12px;color:var(--text-muted)}.selected-file-name{margin-top:6px;padding:4px 10px;font-size:12px;font-weight:500;color:var(--text);background:var(--surface-raised);border:1px solid var(--border);border-radius:999px;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.controls-panel{width:var(--panel-width);flex-shrink:0;display:flex;flex-direction:column;background:var(--surface);border-left:1px solid var(--border)}.panel-header{display:flex;align-items:center;height:48px;padding:0 16px;border-bottom:1px solid var(--border)}.panel-title{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted)}.panel-body{flex:1;padding:16px;overflow-y:auto}.panel-placeholder{font-size:13px;color:var(--text-muted)}.adjustments-panel{display:flex;flex-direction:column;gap:20px}.adjustment-list{display:flex;flex-direction:column;gap:16px}.adjustment-row{display:flex;flex-direction:column;gap:6px}.adjustment-label-row{display:flex;align-items:baseline;justify-content:space-between;gap:8px}.adjustment-label{font-size:13px;font-weight:500;color:var(--text)}.adjustment-value{font-size:12px;font-variant-numeric:tabular-nums;color:var(--text-muted)}.adjustment-slider{width:100%;height:4px;margin:0;-moz-appearance:none;appearance:none;-webkit-appearance:none;background:var(--surface-raised);border:1px solid var(--border);border-radius:999px;cursor:pointer}.adjustment-slider::-webkit-slider-thumb{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:14px;height:14px;background:var(--accent);border:2px solid var(--surface);border-radius:50%;cursor:pointer}.adjustment-slider::-moz-range-thumb{width:14px;height:14px;background:var(--accent);border:2px solid var(--surface);border-radius:50%;cursor:pointer}.adjustment-slider:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.reset-button{width:100%;padding:9px 14px;font-size:13px;font-weight:500;color:var(--text);background:var(--surface-raised);border:1px solid var(--border);border-radius:6px;cursor:pointer;transition:background .15s ease,border-color .15s ease}.reset-button:hover{background:#232833;border-color:#333a45}.reset-button:active{transform:translateY(1px)}.reset-button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.canvas-wrap{position:relative;display:inline-flex;align-items:center;justify-content:center;max-width:100%}.panel-section{display:flex;flex-direction:column;gap:12px}.panel-section+.panel-section{margin-top:24px;padding-top:24px;border-top:1px solid var(--border)}.section-title{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted)}.transform-panel{display:flex;flex-direction:column;gap:12px}.transform-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.transform-button{padding:9px 10px;font-size:12px;font-weight:500;color:var(--text);background:var(--surface-raised);border:1px solid var(--border);border-radius:6px;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease}.transform-button:hover{background:#232833;border-color:#333a45}.transform-button:active{transform:translateY(1px)}.transform-button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.transform-button-active{color:#fff;background:var(--accent);border-color:var(--accent)}.transform-button-active:hover{background:#3d7ceb;border-color:#3d7ceb}.transform-readout{font-size:12px;font-variant-numeric:tabular-nums;color:var(--text-muted)}.crop-overlay{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;cursor:crosshair;touch-action:none;-webkit-user-select:none;user-select:none}.crop-selection{position:absolute;border:1px solid rgba(255,255,255,.9);box-shadow:0 0 0 9999px #0000008c;cursor:move}.crop-handle{position:absolute;width:12px;height:12px;background:#fff;border:1px solid rgba(0,0,0,.4);border-radius:2px}.crop-handle-nw{top:-6px;left:-6px;cursor:nwse-resize}.crop-handle-ne{top:-6px;right:-6px;cursor:nesw-resize}.crop-handle-sw{bottom:-6px;left:-6px;cursor:nesw-resize}.crop-handle-se{bottom:-6px;right:-6px;cursor:nwse-resize}.crop-actions{position:absolute;bottom:10px;left:50%;transform:translate(-50%);display:flex;gap:8px;padding:6px;background:#0b0d10d9;border:1px solid var(--border);border-radius:8px;z-index:3}.crop-apply-button,.crop-cancel-button{padding:6px 12px;font-size:12px;font-weight:500;border:1px solid transparent;border-radius:6px;cursor:pointer}.crop-apply-button{color:#fff;background:var(--accent)}.crop-apply-button:hover{background:#3d7ceb}.crop-cancel-button{color:var(--text);background:var(--surface-raised);border-color:var(--border)}.crop-cancel-button:hover{background:#232833}.export-panel{display:flex;gap:8px}.export-button{flex:1;padding:9px 12px;font-size:13px;font-weight:500;color:#fff;background:var(--accent);border:1px solid transparent;border-radius:6px;cursor:pointer;transition:background .15s ease,transform .05s ease}.export-button:hover:not(:disabled){background:#3d7ceb}.export-button:active:not(:disabled){transform:translateY(1px)}.export-button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.export-button:disabled{opacity:.5;cursor:not-allowed}.export-error{margin-top:8px;font-size:12px;color:#ff6b6b}@media (max-width: 720px){.app-body{flex-direction:column}.controls-panel{width:100%;border-left:none;border-top:1px solid var(--border)}}