:root{--bg:#f5f6f8;--surface:#fff;--surface-alt:#f0f1f4;--text:#1f2430;--text-muted:#6b7280;--border:#d7dae0;--border-strong:#b6bac3;--accent:#3b82f6;--accent-hover:#2563eb;--accent-contrast:#fff;--danger:#d32f2f;--success:#2e7d32;--radius:8px;--radius-sm:5px;--shadow:0 1px 3px #00000014, 0 1px 2px #0000000f;color:var(--text);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:system-ui,Segoe UI,Hiragino Kaku Gothic ProN,Meiryo,Roboto,sans-serif;font-size:15px;line-height:1.5}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}h1,h2,h3{margin:0;font-weight:600;line-height:1.25}button{font:inherit}#app{max-width:1320px;margin:0 auto;padding:20px}.app__header{margin-bottom:20px}.app__title{letter-spacing:-.02em;font-size:28px}.app__subtitle{color:var(--text-muted);margin:6px 0 0;font-size:14px}.app__layout{align-items:flex-start;gap:20px;display:flex}.app__sidebar{flex-direction:column;flex:0 0 340px;gap:16px;display:flex}.app__main{flex-direction:column;flex:auto;align-self:stretch;gap:16px;min-width:0;display:flex}@media (width<=768px){.app__layout{flex-direction:column;align-items:stretch}.app__main{background:var(--bg);z-index:2;order:-1;align-self:stretch;width:100%;max-height:60vh;position:sticky;top:0;overflow-y:auto}.pattern-stage{position:static}.pattern-viewport{max-height:45vh}.app__sidebar{flex:auto;order:0;width:100%}}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.panel__title{border-bottom:1px solid var(--border);color:var(--text);margin-bottom:12px;padding-bottom:8px;font-size:15px}.btn{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);cursor:pointer;justify-content:center;align-items:center;gap:6px;padding:8px 14px;transition:background-color .15s,border-color .15s,opacity .15s;display:inline-flex}.btn:hover:not(:disabled){background:var(--surface-alt)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn--primary{background:var(--accent);border-color:var(--accent);color:var(--accent-contrast);font-weight:600}.btn--primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.btn--icon{width:36px;height:36px;padding:0;font-size:20px;line-height:1}.image-upload__dropzone{border-radius:var(--radius);background:var(--surface-alt);transition:border-color .15s,background-color .15s;border:2px dashed var(--border-strong)!important}.image-upload__dropzone--active{background:#3b82f614;border-color:var(--accent)!important}.image-upload__label{cursor:pointer;color:var(--text-muted);margin-bottom:10px;font-size:14px;display:block}.image-upload__input{max-width:100%;margin:0 auto;display:block}.image-upload__error{color:var(--danger);margin:10px 0 0;font-size:13px}.image-upload__preview{margin-top:12px}.image-upload__preview-img{border:1px solid var(--border);border-radius:var(--radius-sm);max-width:100%;display:block}.preview-canvas__wrap{margin-top:12px}.preview-canvas{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:crosshair;max-width:100%;height:auto;display:block}.bead-type-selector__options{border:1px solid var(--border);border-radius:var(--radius-sm);flex-wrap:wrap;gap:18px;margin:0 0 12px;padding:10px 12px;display:flex}.bead-type-selector__legend{color:var(--text-muted);padding:0 4px;font-size:13px}.bead-type-selector__option{cursor:pointer;align-items:center;gap:6px;display:inline-flex}.bead-type-selector__palette-heading{color:var(--text-muted);margin-bottom:8px;font-size:13px}.bead-type-selector__colors{flex-wrap:wrap;gap:6px;max-height:160px;margin:0;padding:0;list-style:none;display:flex;overflow-y:auto}.bead-type-selector__color{border:1px solid var(--border);background:var(--surface);border-radius:999px;align-items:center;gap:5px;padding:3px 7px 3px 4px;font-size:12px;display:inline-flex}.bead-type-selector__swatch{border:1px solid var(--border-strong);border-radius:50%}.plate-config{align-items:flex-end;gap:10px;display:flex}.plate-config__field{flex-direction:column;gap:4px;display:flex}.plate-config__label{color:var(--text-muted);font-size:13px}.plate-config__input{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);width:80px;color:var(--text);padding:7px 8px}.plate-config__separator{color:var(--text-muted);padding-bottom:8px;font-weight:600}.recommended-sizes{margin-top:14px}.recommended-sizes__heading{color:var(--text-muted);margin-bottom:8px;font-size:13px}.recommended-sizes__message{color:var(--text-muted);margin:0;font-size:13px}.recommended-sizes__list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.recommended-sizes__button{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);width:100%;color:var(--text);text-align:left;cursor:pointer;flex-wrap:wrap;align-items:baseline;gap:4px 12px;padding:8px 12px;transition:border-color .15s,background-color .15s;display:flex}.recommended-sizes__button:hover{background:var(--surface-alt)}.recommended-sizes__button--selected{border-color:var(--accent);background:#3b82f61a}.recommended-sizes__config{font-size:15px;font-weight:600}.recommended-sizes__beads,.recommended-sizes__scale{color:var(--text-muted);font-size:12px}.palette-selector__heading{color:var(--text-muted);margin-bottom:10px;font-size:13px}.palette-selector__max-colors{align-items:center;gap:8px;margin-bottom:12px;display:flex}.palette-selector__max-colors-label{align-items:center;gap:6px;font-size:13px;display:inline-flex}.palette-selector__max-colors-input{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);width:90px;color:var(--text);padding:6px 8px}.palette-selector__max-colors-hint{color:var(--text-muted);font-size:12px}.palette-selector__error{color:var(--danger);margin:0 0 10px;font-size:13px}.palette-selector__grid{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-alt);max-height:180px;padding:4px;overflow-y:auto}.palette-selector__swatch-button{border:1px solid var(--border);background:var(--surface);cursor:pointer;border-radius:999px;align-items:center;gap:5px;padding:3px 7px 3px 4px;font-size:12px;transition:border-color .15s,box-shadow .15s;display:inline-flex}.palette-selector__swatch-button[aria-pressed=true]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}.palette-selector__swatch-button--disabled{background:var(--surface-alt)}.palette-selector__swatch{border:1px solid var(--border-strong);border-radius:50%}.background-exclusion__header{justify-content:space-between;align-items:center;gap:10px;display:flex}.background-exclusion__toggle-label{font-size:14px;font-weight:500}.background-exclusion__toggle{cursor:pointer;width:18px;height:18px}.background-exclusion__details{flex-direction:column;gap:12px;margin-top:12px;display:flex}.background-exclusion__color-row{align-items:center;gap:8px;font-size:13px;display:flex}.background-exclusion__swatch{border-radius:var(--radius-sm)}.background-exclusion__swatch-text{color:var(--text-muted);font-size:12px}.background-exclusion__hint{color:var(--text-muted);margin:0;font-size:12px}.background-exclusion__threshold-row{align-items:center;gap:10px;display:flex}.background-exclusion__threshold-label{white-space:nowrap;font-size:13px}.background-exclusion__threshold{flex:auto}.background-exclusion__threshold-value{font-variant-numeric:tabular-nums;text-align:right;min-width:2em;font-size:13px}.background-exclusion__excluded-count{color:var(--text-muted);font-size:13px}.pattern-editor__heading{color:var(--text-muted);margin-bottom:8px;font-size:13px}.pattern-editor__tools{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.pattern-editor__tool{border:1px solid var(--border-strong);border-radius:var(--radius-sm);cursor:pointer;padding:0}.pattern-editor__tool--color{border-radius:50%}.pattern-editor__tool--eraser{background:var(--surface);color:var(--text);padding:6px 12px;font-size:13px}.pattern-editor__tool.is-selected{outline:2px solid var(--accent);outline-offset:1px}.preprocess{flex-direction:column;gap:12px;display:flex}.preprocess__field{flex-direction:column;gap:4px;display:flex}.preprocess__label{color:var(--text-muted);font-size:13px}.preprocess__select{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);padding:7px 8px}.pattern-stage{z-index:2;background:var(--bg);flex-direction:column;gap:16px;display:flex;position:sticky;top:20px}.pattern-controls{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:10px 14px;display:flex}.zoom-controls{align-items:center;gap:8px;display:flex}.zoom-controls__level{text-align:center;font-variant-numeric:tabular-nums;min-width:56px;font-weight:600}.pattern-message{min-height:0;margin:0;font-size:14px;transition:min-height .1s}.pattern-message.is-visible{border-radius:var(--radius-sm);min-height:1.4em;padding:8px 12px}.pattern-message--info.is-visible{color:var(--success);background:#2e7d321a}.pattern-message--error.is-visible{color:var(--danger);background:#d32f2f1a}.pattern-viewport{background:var(--surface-alt);border:1px solid var(--border);border-radius:var(--radius);min-height:240px;max-height:70vh;box-shadow:var(--shadow);background-image:linear-gradient(45deg,#e2e4e9 25%,#0000 25%),linear-gradient(-45deg,#e2e4e9 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#e2e4e9 75%),linear-gradient(-45deg,#0000 75%,#e2e4e9 75%);background-position:0 0,0 10px,10px -10px,-10px 0;background-size:20px 20px;justify-content:center;align-items:center;padding:16px;display:flex;position:relative;overflow:auto}.pattern-canvas{background:var(--surface);box-shadow:0 0 0 1px var(--border);image-rendering:pixelated;margin:auto;display:block}.pattern-empty{color:var(--text-muted);text-align:center;margin:0;font-size:14px}.panel--color-list{min-height:80px}.color-list__summary{margin-bottom:10px;font-weight:600}.color-list__items{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:6px 14px;margin:0;padding:0;list-style:none;display:grid}.color-list__item{align-items:center;gap:8px;padding:3px 0;font-size:13px;display:flex}.color-list__swatch{border:1px solid var(--border-strong);border-radius:3px;flex:none}.color-list__name{text-overflow:ellipsis;white-space:nowrap;flex:auto;min-width:0;overflow:hidden}.color-list__count{color:var(--text-muted);font-variant-numeric:tabular-nums}.color-list__unplaced{border-top:1px dashed var(--border);color:var(--text-muted);margin-top:10px;padding-top:8px;font-size:13px}.cell-tooltip{z-index:1000;pointer-events:none;border-radius:var(--radius-sm);color:#fff;white-space:nowrap;box-shadow:var(--shadow);background:#1f2430eb;padding:4px 8px;font-size:12px;line-height:1.3;position:fixed}.cell-tooltip[hidden]{display:none}.app__footer{text-align:center;color:#666;border-top:1px solid #e0e0e0;margin-top:24px;padding:24px 16px;font-size:.85rem}