:root{--color-bg: #f4f6f9;--color-surface: #ffffff;--color-border: #e2e8f0;--color-border-strong: #cbd5e1;--color-text: #1e293b;--color-text-muted: #64748b;--color-text-subtle: #94a3b8;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-light: #eff6ff;--color-danger: #dc2626;--color-danger-hover: #b91c1c;--color-danger-light: #fef2f2;--color-header-bg: #f8fafc;--color-row-hover: #f8fafc;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--shadow-card: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 16px rgba(15, 23, 42, .04);--shadow-input-focus: 0 0 0 3px rgba(37, 99, 235, .15);--font: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", sans-serif;--space-xs: .25rem;--space-sm: .5rem;--space-md: .75rem;--space-lg: 1rem;--space-xl: 1.5rem;--space-2xl: 2rem}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:var(--font);font-size:15px;line-height:1.5;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}#app{max-width:800px;margin:0 auto;padding:var(--space-2xl) var(--space-lg)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:var(--space-xl) var(--space-xl) var(--space-2xl)}.card__header{margin-bottom:var(--space-xl)}.card__title{margin:0;font-size:1.375rem;font-weight:700;letter-spacing:-.02em;color:var(--color-text)}.logo{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-lg);margin-bottom:var(--space-xl);padding-bottom:var(--space-xl);border-bottom:1px solid var(--color-border)}.logo__preview-wrap{flex:0 0 auto;display:flex;align-items:center;justify-content:center;width:200px;height:80px;background:var(--color-header-bg);border:1px dashed var(--color-border-strong);border-radius:var(--radius-md);overflow:hidden}.logo__preview{max-width:100%;max-height:100%;object-fit:contain}.logo__placeholder{font-size:.8125rem;color:var(--color-text-subtle)}.logo__actions{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-sm) var(--space-md)}.logo__upload-btn{cursor:pointer}.logo__file-input{display:none}.logo__hint{font-size:.75rem;color:var(--color-text-subtle)}.meta{margin-bottom:var(--space-xl);padding-bottom:var(--space-xl);border-bottom:1px solid var(--color-border)}.meta__grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md) var(--space-lg)}.meta__field{display:flex;flex-direction:column;gap:var(--space-xs)}.meta__field--wide,.meta__field--full{grid-column:1 / -1}.meta__label{font-size:.8125rem;font-weight:600;color:var(--color-text-muted)}.input--textarea{resize:vertical;min-height:3.25rem}.templates{margin-top:var(--space-xl);padding-top:var(--space-xl);border-top:1px solid var(--color-border)}.templates__title{margin:0 0 var(--space-md);font-size:1rem;font-weight:700;color:var(--color-text)}.templates__save{display:flex;flex-wrap:wrap;gap:var(--space-sm) var(--space-md);margin-bottom:var(--space-md)}.templates__save .input{flex:1 1 12rem;min-width:0}.templates__empty{margin:0;font-size:.875rem;color:var(--color-text-subtle)}.templates__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:var(--space-sm)}.templates__item{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-sm) var(--space-md);padding:var(--space-sm) var(--space-md);background:var(--color-header-bg);border:1px solid var(--color-border);border-radius:var(--radius-md)}.templates__info{display:flex;flex-direction:column;gap:.125rem;min-width:0}.templates__name{font-weight:600;font-size:.9375rem;color:var(--color-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.templates__meta{font-size:.75rem;color:var(--color-text-muted)}.templates__actions{display:flex;flex-shrink:0;gap:var(--space-sm)}.table-wrap{overflow-x:auto;margin:0 calc(var(--space-xs) * -1);padding:0 var(--space-xs)}.items-table{width:100%;border-collapse:separate;border-spacing:0;table-layout:fixed}.col-drag{width:6%}.col-name{width:32%}.col-price{width:18%}.col-qty{width:14%}.col-amount{width:18%}.col-action{width:14%}.items-table thead th{padding:var(--space-sm) var(--space-md);font-size:.8125rem;font-weight:600;color:var(--color-text-muted);text-align:left;background:var(--color-header-bg);border-bottom:1px solid var(--color-border)}.items-table thead th:first-child{border-radius:var(--radius-sm) 0 0 0}.items-table thead th:last-child{border-radius:0 var(--radius-sm) 0 0}.items-table thead th.col-num{text-align:right}.items-table thead th.col-action,.items-table thead th.col-drag{text-align:center}.items-table tbody td.col-drag{text-align:center;vertical-align:middle}.drag-handle{display:inline-flex;align-items:center;justify-content:center;width:1.75rem;height:1.75rem;font-size:.75rem;letter-spacing:-.15em;color:var(--color-text-subtle);border-radius:var(--radius-sm);cursor:grab;-webkit-user-select:none;user-select:none;touch-action:none;transition:color .15s,background .15s}.drag-handle:hover{color:var(--color-text-muted);background:var(--color-header-bg)}.drag-handle:active{cursor:grabbing}.sortable-ghost td{background:var(--color-primary-light)!important;opacity:.65}.sortable-chosen td{background:var(--color-row-hover)}.sortable-drag td{background:var(--color-surface);box-shadow:var(--shadow-card)}.items-table tbody td{padding:var(--space-sm) var(--space-md);vertical-align:middle;border-bottom:1px solid var(--color-border)}.items-table tbody tr:last-child td{border-bottom:none}.items-table tbody tr:hover td{background:var(--color-row-hover)}.items-table tbody td.col-num{text-align:right}.items-table tbody td.col-action{text-align:center}.item-amount{display:block;padding:var(--space-sm) 0;font-variant-numeric:tabular-nums;font-weight:500;color:var(--color-text)}.input{width:100%;padding:.5rem .625rem;font:inherit;font-size:.9375rem;color:var(--color-text);background:var(--color-surface);border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);transition:border-color .15s,box-shadow .15s}.input::placeholder{color:var(--color-text-subtle)}.input:hover{border-color:#94a3b8}.input:focus{outline:none;border-color:var(--color-primary);box-shadow:var(--shadow-input-focus)}.input--num{text-align:right;font-variant-numeric:tabular-nums}.input--tax{width:4.5rem;padding:.375rem .5rem;text-align:right;font-variant-numeric:tabular-nums}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.375rem;padding:.5rem 1rem;font:inherit;font-size:.9375rem;font-weight:500;line-height:1.4;border:1px solid transparent;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s,border-color .15s,color .15s,box-shadow .15s}.btn:focus-visible{outline:none;box-shadow:var(--shadow-input-focus)}.btn--primary{color:#fff;background:var(--color-primary);border-color:var(--color-primary)}.btn--primary:hover{background:var(--color-primary-hover);border-color:var(--color-primary-hover)}.btn--secondary{color:var(--color-text);background:var(--color-primary-light);border-color:#bfdbfe}.btn--secondary:hover{background:#dbeafe;border-color:#93c5fd}.btn__icon{font-size:1.125rem;font-weight:600;line-height:1}.btn--ghost{color:var(--color-danger);background:transparent;border-color:var(--color-border-strong)}.btn--ghost:hover{background:var(--color-danger-light);border-color:var(--color-danger);color:var(--color-danger-hover)}.btn--sm{padding:.375rem .75rem;font-size:.8125rem}.toolbar{margin-top:var(--space-lg);padding-top:var(--space-lg);border-top:1px solid var(--color-border)}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md)}.toolbar__left,.toolbar__right{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-md)}.json-import-btn{cursor:pointer}.json-import__input{display:none}.summary{display:flex;justify-content:flex-end;margin-top:var(--space-xl);padding-top:var(--space-xl);border-top:1px solid var(--color-border)}.summary__panel{width:100%;max-width:300px}.summary__row{display:grid;grid-template-columns:1fr auto;align-items:center;gap:var(--space-lg);padding:var(--space-sm) 0}.summary__row--total{margin-top:var(--space-sm);padding-top:var(--space-md);border-top:2px solid var(--color-text)}.summary__row--total .summary__label{font-weight:700;color:var(--color-text)}.summary__row--total .summary__value{font-size:1.25rem;font-weight:700;color:var(--color-primary)}.summary__label{font-size:.875rem;color:var(--color-text-muted);text-align:left}.summary__value{display:flex;align-items:baseline;justify-content:flex-end;gap:.25rem;font-variant-numeric:tabular-nums;font-weight:500;text-align:right;white-space:nowrap}.summary__value--tax{gap:.375rem}.summary__unit{font-size:.8125rem;font-weight:400;color:var(--color-text-muted)}.summary__row--total .summary__unit{font-size:.875rem;color:var(--color-text-muted)}@media(max-width:640px){.meta__grid{grid-template-columns:1fr}}