:root{--brand-900:#00434a;--brand-800:#00565f;--brand-700:#006973;--brand-100:#d9eef0;--brand-50:#eef7f8;--coral:#ff654f;--n-0:#fff;--n-50:#f7f8f9;--n-100:#f0f1f3;--n-150:#e6e8eb;--n-200:#d9dce0;--n-300:#c3c7cc;--n-500:#858b92;--n-600:#5e646b;--n-800:#2f3439;--n-900:#1b1f23;--canvas-field:#e9ebee;--ok:#1f8a4c;--danger:#c2372b;--focus:#0b8a96;--r-sm:6px;--r-md:8px;--r-lg:12px;--r-xl:16px;--r-pill:999px;--sh-1:0 1px 2px #11181c14;--sh-2:0 2px 6px #11181c14, 0 8px 24px #11181c14;--sh-3:0 12px 40px #11181c2e, 0 2px 8px #11181c14;--ease:cubic-bezier(.2, 0, 0, 1);--fast:.12s;--slow:.2s;--topbar-h:56px;--rail-w:76px;--panel-w:300px;--bottom-h:60px;color:var(--n-900);font-synthesis:none;-webkit-font-smoothing:antialiased;font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,Yu Gothic UI,Yu Gothic,system-ui,sans-serif;font-size:13px;line-height:1.5}*{box-sizing:border-box}html,body,#root{width:100%;min-width:320px;height:100%;margin:0;overflow:hidden}body{background:var(--n-0)}button,input,select{font:inherit;color:inherit}button{cursor:pointer}button:disabled,input:disabled{cursor:not-allowed;opacity:.4}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}kbd{border:1px solid var(--n-200);background:var(--n-50);white-space:nowrap;border-bottom-width:2px;border-radius:5px;padding:1px 6px;font-family:inherit;font-size:11px}.file-input-hidden{display:none}.primary-button,.secondary-button,.quiet-button,.danger-button{border-radius:var(--r-md);white-space:nowrap;min-height:38px;transition:background var(--fast) var(--ease), border-color var(--fast) var(--ease);border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-weight:600;display:inline-flex}.primary-button{color:var(--n-0);background:var(--brand-800)}.primary-button:hover:not(:disabled){background:var(--brand-900)}.secondary-button{border-color:var(--n-200);background:var(--n-0)}.secondary-button:hover:not(:disabled){border-color:var(--n-300);background:var(--n-50)}.quiet-button{color:var(--n-600);background:0 0}.quiet-button:hover:not(:disabled){color:var(--n-900);background:var(--n-100)}.danger-button{color:var(--n-0);background:var(--danger)}.danger-button:hover{filter:brightness(.92)}.icon-button{border-radius:var(--r-md);width:36px;height:36px;color:var(--n-800);transition:background var(--fast) var(--ease);background:0 0;border:0;flex:none;place-items:center;padding:0;display:inline-grid}.icon-button:hover:not(:disabled){background:var(--n-100)}.icon-button.is-active{color:var(--brand-800);background:var(--brand-50)}.toolbar-button{border-radius:var(--r-md);background:0 0;border:0;align-items:center;gap:6px;height:36px;padding:0 12px;font-weight:600;display:inline-flex}.toolbar-button:hover:not(:disabled){background:var(--n-100)}.toolbar-button.is-active{color:var(--brand-800);background:var(--brand-50)}.text-button{border-radius:var(--r-sm);white-space:nowrap;background:0 0;border:0;align-items:center;gap:6px;height:34px;padding:0 10px;font-weight:600;display:inline-flex}.text-button:hover:not(:disabled){background:var(--n-100)}.text-button.is-primary{color:var(--n-0);background:var(--brand-800)}.text-button.is-primary kbd{color:var(--n-0);background:0 0;border-color:#ffffff4d}.text-button.is-primary:hover:not(:disabled){background:var(--brand-900)}.app-shell{grid-template-rows:var(--topbar-h) minmax(0, 1fr);background:var(--n-0);-webkit-user-select:none;user-select:none;height:100dvh;min-height:480px;display:grid}.top-bar{z-index:30;background:var(--n-0);box-shadow:0 1px 0 var(--n-150);grid-template-columns:auto auto minmax(0,1fr) auto;align-items:center;gap:12px;padding:0 12px 0 16px;display:grid;position:relative}.brand-lockup{border-radius:var(--r-md);height:36px;color:var(--brand-800);white-space:nowrap;background:0 0;border:0;align-items:center;gap:8px;padding:0 10px 0 4px;font-size:15px;font-weight:700;display:flex}.brand-lockup span{color:var(--n-900)}.brand-lockup:hover:not(:disabled){background:var(--n-100)}.brand-lockup:disabled{cursor:default;opacity:1}.history-buttons{border-left:1px solid var(--n-150);gap:2px;padding-left:12px;display:flex}.file-name{color:var(--n-600);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.top-actions{align-items:center;gap:6px;display:flex}.menu-root{position:relative}.menu{z-index:50;border:1px solid var(--n-150);border-radius:var(--r-lg);background:var(--n-0);min-width:240px;box-shadow:var(--sh-2);animation:pop-in var(--slow) var(--ease);padding:6px;position:absolute;top:calc(100% + 6px);right:0}.menu-item{border-radius:var(--r-md);text-align:left;background:0 0;border:0;align-items:center;gap:10px;width:100%;min-height:38px;padding:0 10px;display:flex}.menu-item:hover:not(:disabled){background:var(--n-100)}.menu-item.is-danger{color:var(--danger)}.editor-layout{grid-template-columns:var(--rail-w) minmax(0, 1fr);grid-template-rows:minmax(0, 1fr) var(--bottom-h);min-height:0;display:grid}.editor-layout.has-panel{grid-template-columns:var(--rail-w) var(--panel-w) minmax(0, 1fr)}.tool-rail{background:var(--n-0);box-shadow:1px 0 0 var(--n-150);flex-direction:column;grid-row:1/-1;gap:4px;padding:8px 6px;display:flex;overflow-y:auto}.tool-button{border-radius:var(--r-md);min-height:60px;color:var(--n-600);transition:background var(--fast) var(--ease), color var(--fast) var(--ease);background:0 0;border:0;justify-items:center;gap:3px;padding:8px 2px 6px;font-size:11px;font-weight:600;display:grid}.tool-button:hover:not(:disabled){color:var(--n-900);background:var(--n-100)}.tool-button.is-active{color:var(--brand-800);background:var(--brand-50)}.side-panel{background:var(--n-0);min-height:0;box-shadow:1px 0 0 var(--n-150);flex-direction:column;gap:16px;padding:20px;display:flex;overflow-y:auto}.panel-title{align-items:center;gap:8px;margin:0;font-size:16px;display:flex}.panel-text{color:var(--n-600);margin:0;font-size:12px;line-height:1.7}.panel-section{gap:16px;display:grid}.panel-actions{gap:8px;display:grid}.model-status{border-radius:var(--r-md);background:var(--n-50);align-items:center;gap:8px;padding:10px 12px;font-size:12px;display:flex}.status-dot{background:var(--n-300);border-radius:50%;flex:none;width:8px;height:8px}.status-processing{background:var(--brand-700);animation:1s infinite pulse}.status-ready{background:var(--ok)}.status-error{background:var(--danger)}.inline-error{color:var(--danger);margin:0;font-size:12px}.canvas-column{background:var(--canvas-field);min-width:0;min-height:0;position:relative}.editor-canvas{touch-action:none;outline:none;position:absolute;inset:0;overflow:hidden}.brush-ring{pointer-events:none;position:absolute;top:0;left:0}.brush-ring>span,.brush-size-preview{border:1.5px solid var(--coral);border-radius:50%;min-width:4px;min-height:4px;position:absolute;transform:translate(-50%,-50%);box-shadow:0 0 0 1px #ffffffe6,inset 0 0 0 1px #ffffffe6}.brush-ring.is-eraser>span{border-style:dashed;border-color:var(--n-900)}.brush-size-preview{pointer-events:none;background:#ff654f1f;top:50%;left:50%}.canvas-loading{color:var(--n-600);pointer-events:none;place-items:center;display:grid;position:absolute;inset:0}.context-bar{z-index:10;border:1px solid var(--n-150);border-radius:var(--r-lg);background:var(--n-0);max-width:calc(100% - 24px);min-height:48px;box-shadow:var(--sh-2);scrollbar-width:none;animation:bar-in var(--slow) var(--ease);align-items:center;gap:6px;padding:6px 8px;display:flex;position:absolute;top:12px;left:50%;overflow-x:auto;transform:translate(-50%)}.context-bar::-webkit-scrollbar{display:none}.context-title{white-space:nowrap;padding:0 6px;font-weight:700}.context-hint,.context-note{color:var(--n-600);white-space:nowrap;align-items:center;gap:6px;padding:0 6px;display:inline-flex}.context-divider{background:var(--n-150);flex:none;width:1px;height:24px;margin:0 2px}.preview-exit{z-index:10;border-radius:var(--r-pill);height:36px;color:var(--n-0);background:#1b1f23d1;border:0;align-items:center;gap:6px;padding:0 14px;font-weight:600;display:inline-flex;position:absolute;top:12px;left:50%;transform:translate(-50%)}.segmented{border-radius:var(--r-md);background:var(--n-100);flex:none;gap:2px;padding:3px;display:inline-flex}.segment{border-radius:var(--r-sm);min-width:36px;height:30px;color:var(--n-600);white-space:nowrap;transition:background var(--fast) var(--ease), color var(--fast) var(--ease);background:0 0;border:0;place-items:center;padding:0 10px;font-weight:600;display:inline-grid}.segment.has-icon{padding:0 6px}.segment:hover:not(:disabled){color:var(--n-900)}.segment.is-active{color:var(--brand-800);background:var(--n-0);box-shadow:var(--sh-1)}.popover-trigger{border:1px solid var(--n-200);border-radius:var(--r-md);background:var(--n-0);white-space:nowrap;flex:none;align-items:center;gap:6px;height:36px;padding:0 8px 0 10px;display:inline-flex}.popover-trigger:hover:not(:disabled),.popover-trigger.is-open{border-color:var(--n-300);background:var(--n-50)}.popover-trigger-label{color:var(--n-600)}.popover-trigger-value{font-variant-numeric:tabular-nums;min-width:3.4em;font-weight:700}.popover-panel{z-index:60;border:1px solid var(--n-150);border-radius:var(--r-lg);background:var(--n-0);width:260px;box-shadow:var(--sh-2);animation:pop-in var(--slow) var(--ease);padding:14px;position:fixed}.color-chip{background:repeating-conic-gradient(var(--n-200) 0 25%, var(--n-0) 0 50%) 50% / 8px 8px;border:1px solid #00000026;border-radius:50%;width:20px;height:20px}.range-control{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px 12px;display:grid}.control-label{font-weight:600}.number-field{color:var(--n-600);align-items:center;gap:4px;display:inline-flex}.number-field input{border:1px solid var(--n-200);border-radius:var(--r-sm);width:60px;height:30px;color:var(--n-900);background:var(--n-0);font-variant-numeric:tabular-nums;text-align:right;padding:0 8px}.number-field input:focus{border-color:var(--brand-700);box-shadow:0 0 0 3px var(--brand-100);outline:none}.range-input,.zoom-slider{border-radius:var(--r-pill);background:var(--n-200);appearance:none;cursor:pointer;width:100%;height:4px;margin:8px 0}.range-input{grid-column:1/-1}.range-input::-webkit-slider-thumb{border:2px solid var(--n-0);background:var(--brand-800);width:16px;height:16px;box-shadow:0 0 0 1px var(--n-300), var(--sh-1);appearance:none;border-radius:50%}.zoom-slider::-webkit-slider-thumb{border:2px solid var(--n-0);background:var(--brand-800);width:16px;height:16px;box-shadow:0 0 0 1px var(--n-300), var(--sh-1);appearance:none;border-radius:50%}.range-input::-moz-range-thumb{border:2px solid var(--n-0);background:var(--brand-800);width:14px;height:14px;box-shadow:0 0 0 1px var(--n-300);border-radius:50%}.zoom-slider::-moz-range-thumb{border:2px solid var(--n-0);background:var(--brand-800);width:14px;height:14px;box-shadow:0 0 0 1px var(--n-300);border-radius:50%}.switch-row{cursor:pointer;justify-content:space-between;align-items:center;gap:12px;min-height:36px;display:flex;position:relative}.switch-row>span:first-child{align-items:center;gap:8px;display:flex}.switch-row input{opacity:0;width:36px;height:20px;margin:0;position:absolute;right:0}.switch-track{border-radius:var(--r-pill);background:var(--n-300);width:36px;height:20px;transition:background var(--fast) var(--ease);flex:none;padding:3px}.switch-track span{background:var(--n-0);width:14px;height:14px;box-shadow:var(--sh-1);transition:transform var(--fast) var(--ease);border-radius:50%;display:block}.switch-row input:checked+.switch-track{background:var(--brand-800)}.switch-row input:checked+.switch-track span{transform:translate(16px)}.switch-row input:focus-visible+.switch-track{outline:2px solid var(--focus);outline-offset:2px}.swatch-row{flex-wrap:wrap;gap:8px;display:flex}.swatch{cursor:pointer;border:1px solid #0000001f;border-radius:50%;width:32px;height:32px;padding:0;position:relative}.swatch.is-active{box-shadow:0 0 0 2px var(--n-0), 0 0 0 4px var(--brand-700)}.swatch-custom{background:conic-gradient(red,#ff0,#0f0,#0ff,#00f,#f0f,red)}.swatch-custom input{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;inset:0}.filmstrip{background:var(--n-0);min-width:0;box-shadow:0 -1px 0 var(--n-150);grid-column:2/-1;justify-content:space-between;align-items:center;gap:16px;padding:0 12px;display:flex}.thumbnail-scroller{scrollbar-width:thin;align-items:center;gap:6px;min-width:0;padding:4px 2px;display:flex;overflow-x:auto}.thumbnail-item{border-radius:var(--r-sm);flex:none;position:relative}.thumbnail-item.is-drag-over{box-shadow:-3px 0 0 var(--brand-700)}.thumbnail-button{border-radius:var(--r-sm);background:var(--n-100);border:2px solid #0000;width:64px;height:44px;padding:0;display:block;position:relative;overflow:hidden}.thumbnail-button.is-active{border-color:var(--brand-700)}.thumbnail-button img{object-fit:cover;width:100%;height:100%}.dirty-dot{border:1.5px solid var(--n-0);background:var(--coral);border-radius:50%;width:8px;height:8px;position:absolute;top:4px;right:4px}.saved-badge{width:16px;height:16px;color:var(--n-0);background:var(--ok);border-radius:50%;place-items:center;display:grid;position:absolute;bottom:3px;right:3px}.thumbnail-remove{width:20px;height:20px;color:var(--n-0);background:var(--n-800);opacity:0;transition:opacity var(--fast) var(--ease);border:0;border-radius:50%;place-items:center;padding:0;display:grid;position:absolute;top:-6px;left:-6px}.thumbnail-item:hover .thumbnail-remove,.thumbnail-remove:focus-visible{opacity:1}.thumbnail-add{border:1.5px dashed var(--n-300);border-radius:var(--r-sm);width:44px;height:44px;color:var(--n-600);background:0 0;flex:none;justify-content:center;align-items:center;gap:6px;display:inline-flex}.thumbnail-add.is-wide{width:auto;height:38px;padding:0 14px;font-weight:600}.thumbnail-add:hover{border-color:var(--brand-700);color:var(--brand-800)}.image-counter{color:var(--n-600);font-variant-numeric:tabular-nums;flex:none;padding:0 6px}.view-controls{flex:none;align-items:center;gap:2px;display:flex}.view-divider{background:var(--n-150);width:1px;height:24px;margin:0 6px}.zoom-slider{width:110px;margin:0 6px}.zoom-label{border-radius:var(--r-sm);font-variant-numeric:tabular-nums;background:0 0;border:0;min-width:56px;height:32px;font-weight:600}.zoom-label:hover{background:var(--n-100)}.empty-state{background:radial-gradient(circle at 50% 0, var(--brand-50), transparent 60%), var(--n-50);text-align:center;flex-direction:column;align-items:center;gap:16px;min-height:0;padding:48px 20px;display:flex;overflow-y:auto}.empty-state h1{margin:24px 0 0;font-size:clamp(22px,3.2vw,32px);line-height:1.35}.empty-lead{color:var(--n-600);margin:0;font-size:14px}.drop-zone{border:2px dashed var(--n-300);border-radius:var(--r-xl);width:min(560px,100%);color:var(--n-600);background:var(--n-0);transition:border-color var(--fast) var(--ease), box-shadow var(--fast) var(--ease);justify-items:center;gap:6px;margin-top:8px;padding:36px 24px;display:grid}.drop-zone:hover:not(:disabled),.is-drop-active .drop-zone{border-color:var(--brand-700);box-shadow:0 0 0 6px var(--brand-50)}.drop-zone strong{color:var(--n-900);font-size:17px}.drop-zone-icon{width:60px;height:60px;color:var(--n-0);background:var(--brand-800);border-radius:50%;place-items:center;margin-bottom:6px;display:grid}.format-note{color:var(--n-500);margin-top:4px;font-size:11px}.empty-actions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.empty-steps{text-align:left;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;width:min(640px,100%);margin:16px 0 0;padding:0;list-style:none;display:grid}.empty-steps li{border-radius:var(--r-lg);background:var(--n-0);box-shadow:var(--sh-1);align-items:flex-start;gap:10px;padding:12px;display:flex}.empty-steps strong,.empty-steps small{display:block}.empty-steps small{color:var(--n-600)}.empty-step-icon{border-radius:var(--r-md);width:32px;height:32px;color:var(--brand-800);background:var(--brand-50);flex:none;place-items:center;display:grid}.empty-error{border-radius:var(--r-md);color:var(--danger);background:#fdecea;margin:0;padding:10px 14px}.toast{bottom:calc(var(--bottom-h) + 16px);z-index:80;border-radius:var(--r-md);max-width:calc(100% - 32px);color:var(--n-0);background:var(--n-900);box-shadow:var(--sh-2);animation:toast-in var(--slow) var(--ease);padding:10px 16px;position:fixed;left:50%;transform:translate(-50%)}.drop-overlay{z-index:100;pointer-events:none;background:#00434a2e;place-items:center;display:grid;position:fixed;inset:0}.drop-overlay>div{border:2px dashed var(--brand-700);border-radius:var(--r-xl);color:var(--brand-800);background:var(--n-0);box-shadow:var(--sh-3);justify-items:center;gap:8px;padding:32px 48px;font-size:15px;display:grid}.modal-backdrop{z-index:110;animation:fade-in var(--slow) var(--ease);background:#11181c73;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.export-dialog,.confirm-dialog,.shortcuts-dialog{border-radius:var(--r-xl);background:var(--n-0);width:min(480px,100%);max-height:calc(100dvh - 40px);box-shadow:var(--sh-3);animation:pop-in var(--slow) var(--ease);padding:24px;overflow-y:auto}.confirm-dialog{width:min(420px,100%)}.shortcuts-dialog{width:min(720px,100%)}.dialog-heading{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px;display:flex}.dialog-heading h2{margin:0;font-size:18px}.dialog-heading p{color:var(--n-600);margin:6px 0 0;line-height:1.7}.dialog-actions{justify-content:flex-end;gap:8px;margin-top:24px;display:flex}.export-scope{border:0;grid-template-columns:1fr 1fr;gap:8px;margin:0 0 20px;padding:0;display:grid}.export-scope legend{margin-bottom:8px;font-weight:600}.export-scope label{border:1px solid var(--n-200);border-radius:var(--r-md);cursor:pointer;align-items:flex-start;gap:10px;padding:12px;display:flex}.export-scope label:has(input:checked){border-color:var(--brand-700);background:var(--brand-50)}.export-scope input{accent-color:var(--brand-800);margin-top:3px}.export-scope span{gap:2px;display:grid}.export-scope small{color:var(--n-600)}.export-options{gap:16px;display:grid}.export-field{gap:8px;display:grid}.export-label{font-weight:600}.export-select{border:1px solid var(--n-200);border-radius:var(--r-md);grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;min-height:44px;padding:0 14px;display:grid}.export-select:focus-within{border-color:var(--brand-700);box-shadow:0 0 0 3px var(--brand-100)}.export-select select{appearance:none;background:0 0;border:0;outline:0;width:100%;font-weight:600}.export-size-heading{color:var(--n-600);justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:-8px;display:flex}.export-divider{background:var(--n-150);height:1px}.export-hint{color:var(--n-600);margin:-10px 0 0;padding-right:48px;font-size:12px;line-height:1.6}.export-progress{color:var(--brand-800);margin:16px 0 0}.shortcut-groups{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;display:grid}.shortcut-groups h3{color:var(--n-600);margin:0 0 8px;font-size:12px}.shortcut-groups dl{gap:6px;margin:0;display:grid}.shortcut-groups dl>div{justify-content:space-between;align-items:center;gap:12px;display:flex}.shortcut-groups dd{margin:0}@keyframes pulse{50%{opacity:.35}}@keyframes fade-in{0%{opacity:0}}@keyframes pop-in{0%{opacity:0;transform:translateY(-4px)scale(.98)}}@keyframes bar-in{0%{opacity:0;transform:translate(-50%,-6px)}}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,8px)}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:1ms!important;animation-duration:1ms!important}}@media (max-width:1000px){.toolbar-button span,.top-bar .primary-button span{display:none}.toolbar-button,.top-bar .primary-button{justify-content:center;width:40px;padding:0}.zoom-slider{display:none}}@media (max-width:760px){:root{--topbar-h:52px;--bottom-h:56px}.top-bar{gap:6px;padding:0 8px}.brand-lockup span,.file-name{display:none}.history-buttons{border-left:0;padding-left:0}.top-bar{grid-template-columns:auto auto minmax(0,1fr) auto}.editor-layout,.editor-layout.has-panel{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0, 1fr) auto var(--bottom-h) auto}.canvas-column{grid-row:1}.side-panel{max-height:38dvh;box-shadow:0 -1px 0 var(--n-150);grid-row:2;padding:14px 16px}.filmstrip{grid-area:3/1;gap:8px;padding:0 8px}.tool-rail{padding:4px 4px max(4px, env(safe-area-inset-bottom));box-shadow:0 -1px 0 var(--n-150);flex-direction:row;grid-row:4;justify-content:space-around;overflow-x:auto}.tool-button{min-width:52px;min-height:52px;padding:6px 2px 4px}.view-controls .icon-button[aria-label=縮小],.view-controls .icon-button[aria-label=拡大],.view-divider{display:none}.context-bar{max-width:none;animation:none;top:8px;left:8px;right:8px;transform:none}.preview-exit{top:8px}.toast{bottom:140px}.empty-state{padding:28px 16px}.empty-steps,.export-scope{grid-template-columns:1fr}.dialog-actions{flex-direction:column-reverse}.dialog-actions>button{width:100%}}