:root{--bg: #f5f5f7;--surface: #ffffff;--border: #e5e7eb;--accent: #4f7ef8;--accent-light: #eff4ff;--danger: #ef4444;--text-primary: #111827;--text-secondary:#374151;--text-muted: #9ca3af}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text-primary);-webkit-font-smoothing:antialiased;line-height:1.5}.page-title{font-size:1.6rem;font-weight:700;margin-bottom:20px;color:var(--text-primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 18px;border-radius:8px;font-size:.9rem;font-weight:500;cursor:pointer;border:1px solid transparent;transition:background .12s,color .12s,border-color .12s,box-shadow .12s;text-decoration:none;white-space:nowrap;line-height:1}.btn:disabled{opacity:.55;cursor:not-allowed}.btn--primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn--primary:hover:not(:disabled){background:#3b6bee}.btn--ghost{background:transparent;color:var(--text-secondary);border-color:var(--border)}.btn--ghost:hover:not(:disabled){background:var(--bg)}.btn--danger{background:var(--danger);color:#fff;border-color:var(--danger)}.btn--full{width:100%}.btn--lg{padding:12px 24px;font-size:1rem}.btn--sm{padding:6px 12px;font-size:.82rem}.btn--icon{padding:7px;min-width:0}.input{display:block;width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:8px;font-size:.9rem;color:var(--text-primary);background:var(--surface);outline:none;transition:border-color .15s,box-shadow .15s;-webkit-appearance:none;-moz-appearance:none;appearance:none}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light)}.input::placeholder{color:var(--text-muted)}.label{display:block;font-size:.83rem;font-weight:500;color:var(--text-secondary);margin-bottom:5px}.form-group{display:flex;flex-direction:column;gap:0}.form-group .label{margin-bottom:5px}.chip{display:inline-block;padding:3px 9px;border-radius:20px;background:var(--accent-light);color:var(--accent);font-size:.75rem;font-weight:600}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:12px;font-size:.78rem;font-weight:600}.badge--accent{background:var(--accent-light);color:var(--accent);margin-left:8px}.spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:inline-block}.spinner--sm{width:14px;height:14px;border-width:2px}.spinner--dark{border-color:#4f7ef84d;border-top-color:var(--accent)}@keyframes spin{to{transform:rotate(360deg)}}.skeleton{background:linear-gradient(90deg,#e5e7eb 25%,#f3f4f6,#e5e7eb 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fadeIn{0%{opacity:0}to{opacity:1}}.app-shell{display:flex;min-height:100vh;background:var(--bg)}.sidebar{width:220px;min-height:100vh;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;flex-shrink:0}.sidebar__logo{padding:24px 20px 20px;font-weight:700;font-size:1.05rem;color:var(--text-primary);border-bottom:1px solid var(--border)}.sidebar__nav{flex:1;display:flex;flex-direction:column;padding:12px 8px;gap:2px}.sidebar__link{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:8px;text-decoration:none;color:var(--text-secondary);font-size:.93rem;font-weight:500;transition:background .12s,color .12s}.sidebar__link:hover{background:var(--accent-light);color:var(--accent)}.sidebar__link--active{background:var(--accent-light);color:var(--accent);font-weight:600}.sidebar__link-icon{font-size:1.1rem}.sidebar__footer{padding:16px 20px;border-top:1px solid var(--border);font-size:.82rem;color:var(--text-muted)}.sidebar__user{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.main-content{flex:1;padding:32px;max-width:1100px;min-width:0}.topbar{display:none;position:fixed;top:0;left:0;right:0;height:56px;background:var(--surface);border-bottom:1px solid var(--border);align-items:center;padding:0 16px;gap:12px;z-index:200}.topbar__hamburger{background:none;border:none;font-size:1.3rem;cursor:pointer;color:var(--text-primary);padding:4px}.topbar__title{font-weight:700;font-size:.97rem;flex:1}.topbar__user{font-size:.83rem;color:var(--text-muted)}.mobile-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:300}.mobile-drawer{position:absolute;top:0;left:0;width:240px;height:100%;background:var(--surface);padding:20px 12px;display:flex;flex-direction:column;gap:4px}.mobile-drawer__link{display:flex;align-items:center;gap:12px;padding:12px 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28px;color:var(--text-primary)}.auth-form{display:flex;flex-direction:column;gap:16px}.auth-error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca;border-radius:6px;padding:10px 14px;font-size:.88rem}.auth-footer{text-align:center;margin-top:20px;font-size:.88rem;color:var(--text-muted)}.auth-footer a{color:var(--accent);text-decoration:none;font-weight:500}.auth-footer a:hover{text-decoration:underline}.auth-card__subtitle{text-align:center;color:var(--text-muted);font-size:.9rem;margin:-16px 0 28px}.btn-google{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;padding:12px 20px;border:1px solid var(--border);border-radius:8px;background:var(--surface);font-size:.95rem;font-weight:500;color:var(--text-primary);cursor:pointer;transition:background .12s,box-shadow .12s;box-shadow:0 1px 3px #00000014}.btn-google:hover:not(:disabled){background:var(--bg);box-shadow:0 2px 8px #0000001f}.btn-google:disabled{opacity:.6;cursor:not-allowed}.qr-wrapper{display:flex;flex-direction:column;align-items:center;gap:8px}.qr-canvas{border-radius:8px;border:1px solid var(--border);display:block}.qr-label{font-size:.75rem;color:var(--text-muted);letter-spacing:.05em}.hs-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;background:var(--bg)}.hs-header{text-align:center;margin-bottom:32px}.hs-logo{font-size:3rem;margin-bottom:8px}.hs-header h1{font-size:1.7rem;font-weight:700;margin:0 0 8px;color:var(--text-primary)}.hs-header p{color:var(--text-muted);margin:0}.hs-cards{display:flex;gap:20px;align-items:flex-start;flex-wrap:wrap;justify-content:center;width:100%;max-width:760px}.hs-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:32px 28px;flex:1;min-width:280px;max-width:360px;display:flex;flex-direction:column;gap:12px;box-shadow:0 4px 16px #0000000d}.hs-card h2{font-size:1.1rem;font-weight:600;margin:0;color:var(--text-primary)}.hs-card p{color:var(--text-muted);font-size:.9rem;margin:0}.hs-divider{font-size:.85rem;color:var(--text-muted);padding:8px 0;align-self:center}.hs-code-input{letter-spacing:.3em;font-size:1.3rem;text-align:center;font-weight:700;margin-bottom:8px}.hs-error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca;border-radius:6px;padding:8px 12px;font-size:.86rem}.hs-code-row{display:flex;align-items:center;gap:12px;margin:8px 0}.hs-qr{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.hs-qr__label{font-size:.82rem;color:var(--text-muted);margin:0;text-align:center}.hs-code{font-size:2rem;font-weight:700;letter-spacing:.25em;background:var(--bg);padding:10px 20px;border-radius:8px;border:2px dashed var(--accent);color:var(--accent);flex:1;text-align:center}.product-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;overflow:hidden;transition:box-shadow .15s,transform .1s;display:flex;flex-direction:column}.product-card:hover{box-shadow:0 4px 16px #00000014}.product-card__body{padding:14px 16px 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.15s}.category-picker__add-btn:hover{background:var(--accent-light)}.barcode-scanner-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;z-index:1000;display:flex;align-items:center;justify-content:center;padding:16px}.barcode-scanner-modal{background:var(--surface);border-radius:14px;overflow:hidden;width:100%;max-width:420px;box-shadow:0 20px 60px #0006}.barcode-scanner-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;font-size:.9rem;font-weight:600;color:var(--text-primary);border-bottom:1px solid var(--border)}.barcode-scanner-close{background:none;border:none;font-size:1.1rem;cursor:pointer;color:var(--text-muted);padding:4px 8px}.barcode-scanner-viewport{position:relative;width:100%;aspect-ratio:4/3;background:#000;overflow:hidden}.barcode-scanner-video{width:100%;height:100%;object-fit:cover}.barcode-scanner-crosshair{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:65%;height:35%;border:2px solid var(--accent);border-radius:8px;box-shadow:0 0 0 2000px #00000059;pointer-events:none}.barcode-scanner-error{padding:24px 16px;text-align:center;color:var(--danger);font-size:.9rem}.add-product-page{max-width:700px}.add-product-form{display:flex;flex-direction:column}.page-header-row{display:flex;align-items:center;gap:16px;margin-bottom:24px}.form-section{margin-bottom:32px}.form-section__title{font-size:1rem;font-weight:600;color:var(--text-primary);margin:0 0 16px;padding-bottom:8px;border-bottom:1px solid var(--border)}.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-actions{display:flex;gap:12px;justify-content:flex-end;padding-top:8px}.form-error{color:var(--danger);font-size:.84rem;margin:6px 0 0}textarea.input{resize:vertical}.barcode-section{margin-bottom:20px}.barcode-toggle{background:none;border:none;color:var(--accent);font-size:.88rem;cursor:pointer;padding:4px 0;font-weight:500}.barcode-row{display:flex;gap:10px;align-items:center;margin-top:10px;flex-wrap:wrap}.barcode-row .input{flex:1;min-width:140px}.duplicate-warning{margin-top:8px;padding:12px 14px;background:#fffbeb;border:1px solid #fcd34d;border-radius:8px;font-size:.88rem;color:#92400e;display:flex;flex-direction:column;gap:10px}.duplicate-warning__actions{display:flex;gap:8px;flex-wrap:wrap}@media(max-width:600px){.form-grid-2{grid-template-columns:1fr}}.store-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:16px;transition:box-shadow 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td:last-child{text-align:right;font-weight:500}.store-card__actions{display:flex;gap:8px;flex-wrap:wrap}.store-card__edit{display:flex;flex-direction:column;gap:8px}.store-card__edit-actions{display:flex;gap:8px}.btn--danger-text{color:var(--danger)!important}.product-detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start;margin-top:16px}.product-panel,.stores-panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px}.product-panel__header{margin-bottom:16px}.product-panel__name{font-size:1.4rem;font-weight:700;margin:0 0 4px;color:var(--text-primary)}.product-panel__namees{font-size:.9rem;color:var(--text-muted);margin:0 0 10px}.product-panel__meta{display:flex;align-items:center;gap:8px}.product-panel__unit{font-size:.82rem;color:var(--text-muted)}.product-panel__notes{margin:0 0 20px;padding:12px 16px;background:var(--bg);border-left:3px solid var(--accent);border-radius:4px;font-size:.9rem;color:var(--text-secondary);font-style:italic}.product-panel__stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}.stat-item{background:var(--bg);border-radius:8px;padding:10px 12px}.stat-item__label{display:block;font-size:.76rem;color:var(--text-muted);margin-bottom:2px}.stat-item__value{font-size:.93rem;font-weight:600;color:var(--text-primary)}.product-panel__actions{display:flex;gap:8px;flex-wrap:wrap}.product-panel__edit{display:flex;flex-direction:column;gap:14px}.product-panel__edit-actions{display:flex;gap:10px;justify-content:flex-end}.stores-panel__title{font-size:1.05rem;font-weight:600;margin:0 0 16px;color:var(--text-primary)}.stores-panel__empty{color:var(--text-muted);font-size:.9rem;margin-bottom:16px}.stores-list{display:flex;flex-direction:column;gap:12px;margin-bottom:16px}.add-store-form{display:flex;flex-direction:column;gap:10px;background:var(--bg);border-radius:8px;padding:16px}.add-store-form__title{font-size:.95rem;font-weight:600;margin:0}.add-store-form__actions{display:flex;gap:8px;justify-content:flex-end}@media(max-width:800px){.product-detail-layout{grid-template-columns:1fr}}.list-summary{display:flex;justify-content:space-between;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:12px 18px;margin-bottom:16px;font-size:.9rem;color:var(--text-secondary);position:sticky;top:0;z-index:10}.list-summary__total strong{color:var(--text-primary);font-size:1rem}.list-items{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}.list-item{display:flex;align-items:center;justify-content:space-between;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:14px 16px;gap:12px;transition:opacity .15s,background .15s}.list-item--checked{opacity:.55;background:var(--bg)}.list-item--checked .list-item__name{text-decoration:line-through;color:var(--text-muted)}.list-item__checkbox{width:26px;height:26px;border-radius:6px;border:2px solid var(--border);background:var(--bg);cursor:pointer;font-size:.9rem;font-weight:700;color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .12s,border-color .12s}.list-item__checkbox--checked{background:var(--accent);border-color:var(--accent)}.list-item__info{flex:1;min-width:0}.list-item__name{display:block;font-weight:600;font-size:.97rem;color:var(--text-primary)}.list-item__namees{display:block;font-size:.82rem;color:var(--text-muted)}.list-item__store{display:block;font-size:.8rem;color:var(--text-muted);margin-top:2px}.list-item__controls{display:flex;align-items:center;gap:12px;flex-shrink:0}.qty-stepper{display:flex;align-items:center;gap:6px}.qty-stepper__btn{width:28px;height:28px;border:1px solid var(--border);border-radius:50%;background:var(--bg);font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .12s}.qty-stepper__btn:hover{background:var(--accent-light);color:var(--accent)}.qty-stepper__val{min-width:20px;text-align:center;font-weight:600;font-size:.97rem}.list-item__line-total{font-weight:600;font-size:.93rem;min-width:52px;text-align:right;color:var(--accent)}.list-item__remove{background:none;border:none;color:var(--text-muted);font-size:1.1rem;cursor:pointer;padding:4px;transition:color .12s}.list-item__remove:hover{color:var(--danger)}.list-page__cta{display:flex;gap:12px;justify-content:flex-end;align-items:center;padding-top:8px}.history-controls{margin-bottom:20px}.history-month-select{max-width:220px}.month-summary{display:flex;justify-content:space-between;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px 24px;margin-bottom:20px}.month-summary__label{font-size:.84rem;color:var(--text-muted);margin-bottom:4px}.month-summary__total{font-size:2rem;font-weight:700;color:var(--text-primary);line-height:1}.month-summary__trips{font-size:.84rem;color:var(--text-muted);margin-top:4px}.month-summary__delta{font-size:1.2rem;font-weight:700;text-align:right}.month-summary__delta-label{display:block;font-size:.76rem;font-weight:400;color:var(--text-muted)}.delta--up{color:var(--danger)}.delta--down{color:#16a34a}.purchase-list{display:flex;flex-direction:column;gap:10px}.purchase-row{display:flex;justify-content:space-between;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:14px 18px;cursor:pointer;transition:box-shadow .12s;gap:12px}.purchase-row:hover{box-shadow:0 3px 12px #00000014}.purchase-row__left{flex:1;min-width:0}.purchase-row__store{display:block;font-weight:600;font-size:.97rem;color:var(--text-primary)}.purchase-row__date{display:block;font-size:.82rem;color:var(--text-muted);margin-bottom:4px}.purchase-row__preview{display:block;font-size:.8rem;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.purchase-row__right{text-align:right;flex-shrink:0}.purchase-row__total{display:block;font-weight:700;font-size:1.05rem;color:var(--accent)}.purchase-row__items{display:block;font-size:.78rem;color:var(--text-muted)}.skeleton--row{height:72px;border-radius:10px;margin-bottom:10px}.skeleton-list{display:flex;flex-direction:column}.purchase-detail-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px;gap:16px;flex-wrap:wrap}.purchase-detail-store{font-size:1.4rem;font-weight:700;margin:0 0 4px;color:var(--text-primary)}.purchase-detail-date{margin:0;font-size:.9rem;color:var(--text-muted)}.purchase-detail-meta{text-align:right}.purchase-detail-items{display:block;font-size:.85rem;color:var(--text-muted)}.purchase-detail-total{display:block;font-size:1.6rem;font-weight:700;color:var(--accent)}.purchase-detail-controls{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.checkbox-label{display:flex;align-items:center;gap:8px;font-size:.88rem;color:var(--text-secondary);cursor:pointer}.purchase-table{width:100%;border-collapse:collapse;background:var(--surface);border-radius:10px;overflow:hidden;border:1px solid var(--border)}.purchase-table th{background:var(--bg);padding:10px 14px;font-size:.8rem;font-weight:600;color:var(--text-muted);text-align:left;border-bottom:1px solid var(--border)}.purchase-table td{padding:12px 14px;font-size:.9rem;border-bottom:1px solid var(--border);color:var(--text-primary)}.purchase-table tbody tr:last-child td{border-bottom:none}.purchase-table__row--selected td{background:var(--accent-light)}.purchase-table__num{text-align:right}.purchase-table__name{font-weight:500}.purchase-table__namees{color:var(--text-muted);font-size:.84rem}.purchase-table__line-total{font-weight:600}.purchase-table tfoot td{background:var(--bg);border-top:2px solid var(--border);font-weight:600}.purchase-table__footer-label{color:var(--text-secondary)}.purchase-table__grand-total{font-size:1.05rem;color:var(--accent)}.settings-section{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px 24px;margin-bottom:20px;max-width:640px}.settings-section__title{font-size:.88rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);margin:0 0 16px}.settings-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--border);flex-wrap:wrap}.settings-row:last-child{border-bottom:none}.settings-row--col{align-items:flex-start;flex-direction:column}.settings-row__label{font-size:.88rem;color:var(--text-muted);min-width:80px;flex-shrink:0}.settings-row__text{font-size:.93rem;color:var(--text-primary)}.settings-row__value{display:flex;align-items:center;gap:10px}.settings-row__edit{display:flex;align-items:center;gap:8px}.member-list{list-style:none;padding:0;margin:8px 0 0}.member-list__item{font-size:.9rem;padding:4px 0;color:var(--text-primary)}.member-list__role{color:var(--text-muted);font-size:.82rem}.join-code-actions{display:flex;gap:8px;flex-wrap:wrap}.join-code-row{display:flex;align-items:center;gap:10px;margin-top:10px}.qr-section{margin-top:16px}.join-code{background:var(--bg);border:2px dashed var(--accent);border-radius:6px;padding:6px 14px;font-size:1.4rem;font-weight:700;letter-spacing:.2em;color:var(--accent)}.currency-group{display:flex;gap:8px;flex-wrap:wrap}.currency-option{display:flex;align-items:center;gap:6px;padding:8px 16px;border:1px solid var(--border);border-radius:8px;cursor:pointer;font-size:.93rem;font-weight:500;transition:all .12s}.currency-option input{display:none}.currency-option--active{background:var(--accent-light);border-color:var(--accent);color:var(--accent);font-weight:700}.categories-list{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}.category-item{display:flex;justify-content:space-between;align-items:center;padding:7px 0;border-bottom:1px solid var(--border);font-size:.9rem}.category-item:last-child{border-bottom:none}.input--sm{padding:6px 10px;font-size:.88rem;height:34px}.settings-footer{text-align:center;font-size:.78rem;color:var(--text-muted);margin-top:32px;padding-bottom:16px}.inventory-page{max-width:680px}.inventory-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.inventory-add-form{display:flex;gap:10px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:20px;flex-wrap:wrap}.inventory-add-form .input{flex:1;min-width:160px}.inventory-add-form__qty{display:flex;align-items:center;gap:8px;font-size:.88rem;color:var(--text-muted)}.inventory-add-form__qty .input{width:64px;flex:none}.inventory-empty{text-align:center;color:var(--text-muted);padding:48px 0;font-size:.95rem}.inventory-section{margin-bottom:28px}.inventory-section__title{font-size:.82rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin:0 0 10px}.inventory-section__title--empty{color:var(--danger)}.inventory-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-bottom:8px;transition:opacity .15s}.inventory-row--empty{opacity:.6}.inventory-row__name{flex:1;font-size:.95rem;font-weight:500;color:var(--text-primary);cursor:pointer;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.inventory-row__name span:hover{color:var(--accent);text-decoration:underline dotted}.inventory-row__edit-actions{display:flex;gap:6px}.inventory-row__actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.inventory-row__stepper{display:flex;align-items:center;gap:0;border:1px solid var(--border);border-radius:8px;overflow:hidden}.stepper-btn{background:var(--bg);border:none;width:32px;height:32px;font-size:1.1rem;cursor:pointer;color:var(--text-primary);transition:background .1s;display:flex;align-items:center;justify-content:center}.stepper-btn:hover:not(:disabled){background:var(--accent-light);color:var(--accent)}.stepper-btn:disabled{opacity:.3;cursor:not-allowed}.stepper-qty{min-width:32px;text-align:center;font-size:.95rem;font-weight:600;color:var(--text-primary);background:var(--surface);padding:0 4px;line-height:32px}