:root{--accent: #b3202a;--black: #000000;--grey-900: #18181b;--grey-800: #27272a;--grey-500: #71717a;--grey-300: #e4e4e7;--grey-100: #f4f4f5;--white: #ffffff;--bg: var(--white);--surface: var(--grey-100);--border: var(--grey-300);--text: var(--grey-900);--text-muted: var(--grey-500);--text-inverted: var(--white)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden;-webkit-text-size-adjust:100%}button,input,select,textarea{font:inherit;color:inherit}button{min-height:44px;min-width:44px;cursor:pointer}input,select,textarea{min-height:44px;padding:8px 10px;background:var(--white);border:1px solid var(--border);border-radius:6px}input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.site-header{border-bottom:1px solid var(--grey-900);background:var(--bg)}.nav{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;padding:10px 12px;max-width:720px;margin:0 auto}.nav-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:8px 14px;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:8px;white-space:nowrap}.nav-btn.active{background:var(--accent);border-color:var(--accent);color:var(--text-inverted)}@media (max-width: 639px){.nav{display:grid;grid-template-columns:repeat(2,minmax(140px,1fr));max-width:340px}}.page-title{text-align:center;font-size:1.25rem;margin:14px 12px 6px}.page-main{padding:0 12px 32px;max-width:1200px;margin:0 auto}.calc-layout{display:grid;gap:16px}.segmented{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--surface)}.segmented button{min-height:44px;border:none;border-radius:0;background:transparent;color:var(--text)}.segmented button.active{background:var(--accent);color:var(--text-inverted)}@media (max-width: 1023px){.calc-layout .pane{display:none}.calc-layout .pane.visible{display:block}}@media (min-width: 1024px){.calc-layout{grid-template-columns:minmax(0,3fr) minmax(0,2fr);align-items:start}.calc-layout .segmented{display:none}}.panel{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:12px}.panel h2{margin:0 0 10px;font-size:1rem}.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:8px;background:var(--white)}table{border-collapse:collapse;width:100%;min-width:max-content}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border);white-space:nowrap}th{background:var(--surface);font-weight:600;color:var(--text);position:sticky;top:0}tbody tr:last-child td{border-bottom:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:8px 14px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text)}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--text-inverted)}.btn-ghost{background:transparent;border-color:transparent}.btn-danger{color:var(--text)}.grand-total{color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums}.placeholder{color:var(--text-muted);padding:16px 4px}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:10px}.toolbar h2{margin:0}.table-row-click{cursor:pointer}.table-row-click:hover td{background:var(--grey-100)}.actions-cell{display:flex;gap:4px}.icon-btn{padding:8px;border-color:transparent}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}.modal{background:var(--white);border:1px solid var(--border);border-radius:10px;width:100%;max-width:480px;max-height:90vh;overflow-y:auto}.modal-head{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid var(--border)}.modal-head h2{margin:0;font-size:1rem}.modal-body{padding:12px;display:grid;gap:12px}.modal-actions{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap}.form{display:grid;gap:12px}.form-row{display:grid;gap:4px}.form-label{font-size:.85rem;color:var(--text-muted)}textarea{resize:vertical;font-family:inherit}.checkbox-row{display:flex;align-items:center;gap:8px;min-height:44px;cursor:pointer}.checkbox-row input[type=checkbox]{width:24px;height:24px;min-height:24px;accent-color:var(--accent)}.error-text{display:flex;align-items:center;gap:6px;margin:0;color:var(--text);background:var(--grey-100);border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-size:.9rem;word-break:break-word}.confirm-message{display:flex;align-items:flex-start;gap:8px;margin:0;color:var(--text)}.drawer-list{margin:0;display:grid;gap:8px}.drawer-row{display:grid;grid-template-columns:minmax(90px,auto) 1fr;gap:8px}.drawer-row dt{color:var(--text-muted);font-size:.85rem;padding-top:2px}.drawer-row dd{margin:0;white-space:pre-wrap;word-break:break-word}.qty-input{width:76px}.cost-cell{display:flex;flex-direction:column;gap:2px}.cost-row{display:flex;align-items:center;gap:4px}.cost-input{width:110px}.mode-toggle{display:flex;border:1px solid var(--border);border-radius:6px;overflow:hidden}.mode-toggle button{min-height:44px;min-width:44px;padding:4px 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12px}.toolbar-actions{display:flex;gap:8px;flex-wrap:wrap}.totals-stack{display:grid;gap:4px}.discount-list{display:grid;gap:2px}.discount-row{display:flex;justify-content:space-between;gap:16px;font-size:.9rem;color:var(--text)}.discount-amount{font-variant-numeric:tabular-nums}.discount-hint{margin:0;font-size:.85rem;color:var(--text-muted)}.subtotal-line{display:flex;justify-content:space-between;gap:16px;color:var(--text-muted);font-size:.9rem}.rules-editor{display:grid;gap:10px}.rules-list{display:grid;gap:8px;max-height:50vh;overflow-y:auto}.rule-item{display:grid;gap:6px;padding:8px 10px;background:var(--surface);border:1px solid var(--border);border-radius:8px}.rule-item.inactive{opacity:.55}.rule-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;flex-wrap:wrap}.rule-name{font-weight:600}.rule-desc{color:var(--text-muted);font-size:.85rem}.cond-chips{display:flex;gap:6px;flex-wrap:wrap}.cond-chip{background:var(--white);border:1px solid 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12px;background:transparent;border:none;border-radius:8px;text-align:left;cursor:pointer;flex-wrap:wrap}.log-row-head:hover{background:var(--grey-100)}.log-row-head .grow{flex:1;min-width:120px}.log-row-body{border-top:1px solid var(--border);padding:10px 12px;display:grid;gap:10px}.log-meta{color:var(--text-muted);font-size:.85rem}.log-sale{display:grid;gap:6px}.log-sale-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:space-between;font-size:.9rem}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}.card{display:grid;gap:6px;padding:10px 12px;background:var(--white);border:1px solid var(--border);border-radius:10px}.card h3{margin:0;font-size:.95rem}.card p{margin:0}.card ul{margin:0;padding-left:18px;display:grid;gap:4px;font-size:.85rem}.usage-table th,.usage-table td{white-space:nowrap}.usage-name-col{position:sticky;left:0;z-index:2;background:var(--white);border-right:1px solid var(--border);min-width:170px}.usage-table th.usage-name-col{background:var(--surface);z-index:3}.th-sort{display:flex;align-items:center;gap:6px;width:100%;min-height:44px;padding:8px 10px;background:transparent;border:none;font:inherit;font-weight:600;color:inherit;text-align:left;cursor:pointer}.stepper{display:inline-flex;align-items:center;gap:2px}.stepper button{min-width:44px;min-height:44px;padding:4px 8px}.stepper-input{width:64px;text-align:center}