:root{--bg: #111214;--bg-panel: #1a1c1f;--bg-elevated: #232529;--border: #2e3136;--text: #e8eaed;--text-dim: #9aa0a8;--accent: #4c9ffe;--accent-dim: #2d6cb5;--danger: #e05c5c;color-scheme:dark}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;overflow:hidden}body{background:var(--bg);color:var(--text);font-family:Hiragino Kaku Gothic ProN,Yu Gothic UI,Segoe UI,system-ui,sans-serif;font-size:13px;-webkit-font-smoothing:antialiased;touch-action:manipulation}button{font:inherit;color:inherit;background:var(--bg-elevated);border:1px solid var(--border);border-radius:8px;padding:7px 12px;cursor:pointer;user-select:none;-webkit-user-select:none;white-space:nowrap;flex-shrink:0}button:hover{background:#2b2e33}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--accent-dim);border-color:var(--accent-dim)}button.primary:hover{background:var(--accent)}button.icon{padding:6px 9px}button.toggled{border-color:var(--accent);color:var(--accent)}input[type=file]{display:none}input[type=range]{-webkit-appearance:none;appearance:none;height:22px;background:transparent;cursor:pointer}input[type=range]::-webkit-slider-runnable-track{height:3px;background:var(--border);border-radius:2px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;border-radius:50%;background:#d7dbe0;margin-top:-6px;border:none}input[type=range]::-moz-range-track{height:3px;background:var(--border);border-radius:2px}input[type=range]::-moz-range-thumb{width:15px;height:15px;border-radius:50%;background:#d7dbe0;border:none}.app{display:flex;flex-direction:column;height:100%}.header{height:50px;display:flex;align-items:center;gap:7px;padding:0 10px;background:var(--bg-panel);border-bottom:1px solid var(--border);flex-shrink:0;overflow-x:auto;scrollbar-width:none}.header::-webkit-scrollbar{display:none}.header .logo{font-weight:700;font-size:15px;white-space:nowrap;background:linear-gradient(120deg,#6db4ff,#7bffc8);-webkit-background-clip:text;background-clip:text;color:transparent;margin-right:2px}.header .spacer{flex:1}.header .file-info{color:var(--text-dim);font-size:11px;white-space:nowrap}.preview-area{flex:1;min-height:0;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;background:repeating-conic-gradient(#17181b 0% 25%,#131417 0% 50%) 0 0 / 24px 24px;padding:10px}.preview-area canvas{max-width:100%;max-height:100%;width:auto;height:auto;box-shadow:0 6px 32px #0000008c;touch-action:none}.preview-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--text-dim);text-align:center;padding:20px}.preview-empty .drop-hint{border:2px dashed var(--border);border-radius:12px;padding:32px 28px;display:flex;flex-direction:column;gap:12px;align-items:center;max-width:480px}.preview-empty.drag-over .drop-hint{border-color:var(--accent);background:#4c9ffe0f}.preview-empty h2{font-size:18px;color:var(--text)}.preview-empty .formats{font-size:11px;line-height:1.7}.session-restore{display:flex;flex-direction:column;align-items:center;gap:6px;margin-top:4px}.session-restore button{color:#fff;font-size:13px;font-weight:600;padding:10px 24px;background:var(--accent-dim);border-color:var(--accent)}.session-restore button:hover{background:var(--accent)}.session-meta{font-size:10.5px;color:var(--text-dim)}.session-discard{margin-left:10px;color:var(--danger);cursor:pointer;text-decoration:underline}.loading-overlay{position:absolute;inset:0;background:#0c0d0fb3;display:flex;align-items:center;justify-content:center;z-index:5;font-size:14px;gap:10px}.spinner{width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.crop-layer{overflow:hidden;z-index:3;touch-action:none;contain:layout paint}.crop-shade{position:absolute;background:#0000008c;pointer-events:none}.crop-rect{position:absolute;border:1.5px solid rgba(255,255,255,.95);cursor:move;touch-action:none}.crop-thirds-v,.crop-thirds-h{position:absolute;inset:0;pointer-events:none}.crop-thirds-v:before,.crop-thirds-v:after{content:"";position:absolute;top:0;bottom:0;width:1px;background:#ffffff59}.crop-thirds-v:before{left:33.33%}.crop-thirds-v:after{left:66.66%}.crop-thirds-h:before,.crop-thirds-h:after{content:"";position:absolute;left:0;right:0;height:1px;background:#ffffff59}.crop-thirds-h:before{top:33.33%}.crop-thirds-h:after{top:66.66%}.crop-handle{position:absolute;width:16px;height:16px;background:#fff;border:1.5px solid #333;border-radius:3px;touch-action:none}.crop-handle:before{content:"";position:absolute;inset:-12px}.crop-handle.nw,.crop-handle.ne,.crop-handle.se,.crop-handle.sw{z-index:2}.crop-handle.nw{left:-8px;top:-8px;cursor:nwse-resize}.crop-handle.n{left:calc(50% - 8px);top:-8px;cursor:ns-resize}.crop-handle.ne{right:-8px;top:-8px;cursor:nesw-resize}.crop-handle.e{right:-8px;top:calc(50% - 8px);cursor:ew-resize}.crop-handle.se{right:-8px;bottom:-8px;cursor:nwse-resize}.crop-handle.s{left:calc(50% - 8px);bottom:-8px;cursor:ns-resize}.crop-handle.sw{left:-8px;bottom:-8px;cursor:nesw-resize}.crop-handle.w{left:-8px;top:calc(50% - 8px);cursor:ew-resize}.trim-dock{flex-shrink:0;background:var(--bg-panel);border-top:1px solid var(--border);padding:8px 10px calc(10px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:8px}.trim-dock.disabled{opacity:.5;pointer-events:none}.dock-row{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none}.dock-row::-webkit-scrollbar{display:none}.dock-row.aspects button{font-size:11.5px;padding:6px 12px;border-radius:16px}.dock-row.aspects button.active{background:var(--accent-dim);border-color:var(--accent-dim)}.dock-row.tools button{font-size:14px;padding:6px 14px}.dock-size{margin-left:auto;font-size:12px;color:var(--text-dim);font-variant-numeric:tabular-nums;white-space:nowrap;padding-right:4px}.modal-backdrop{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}.modal{background:var(--bg-panel);border:1px solid var(--border);border-radius:14px;padding:20px;width:100%;max-width:380px;display:flex;flex-direction:column;gap:14px}.modal h3{font-size:15px}.modal .row{display:flex;align-items:center;justify-content:space-between;gap:10px}.modal .row label{color:var(--text-dim);font-size:12px}.modal select{font:inherit;color:inherit;background:var(--bg-elevated);border:1px solid var(--border);border-radius:8px;padding:6px 10px}.modal .actions{display:flex;gap:8px;justify-content:flex-end}.export-dims{font-size:12px;font-variant-numeric:tabular-nums}.toast{position:fixed;bottom:110px;left:50%;transform:translate(-50%);background:#3a1e1e;border:1px solid var(--danger);color:#ffd9d9;padding:10px 18px;border-radius:10px;font-size:12.5px;z-index:200;max-width:90vw}.toast.notice{background:#16283d;border-color:var(--accent-dim);color:#cfe4ff}