:root{--colour-primary: #000;--colour-primary-light: #aaa;--colour-primary-dark: #333;--colour-danger: #cc4444;--colour-text-primary: #333333;--colour-text-secondary: #666666;--colour-text-tertiary: #777777;--colour-white: #ffffff;--colour-bg: #ffffff;--colour-bg-card: #ffffff;--colour-bg-input: #eeeeee;--colour-border-input: #eeeeee;--colour-grey: #eeeeee;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .1);--shadow-md: 0 2px 8px rgba(0, 0, 0, .1);--font-sans: sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 3rem;--chart-grid-color: #eeeeee;--chart-text-color: var(--colour-text-tertiary);--chart-line-width: 2px;--chart-line-width-primary: 3px;--chart-point-radius: 4px;--chart-tooltip-bg: 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ease}.suggestion-item:hover{background-color:var(--colour-bg)}.suggestion-item:active{background-color:var(--colour-bg-hover)}.input-group{display:flex;flex-direction:column;gap:var(--spacing-xs)}.input-label{font-size:var(--font-size-lg);font-weight:500;color:var(--colour-text-primary);margin-bottom:5px}.input-wrapper{position:relative;display:flex;align-items:center}.input{padding:var(--spacing-md) var(--spacing-lg);border:1px solid var(--colour-border-input);border-radius:var(--radius-lg);background-color:var(--colour-bg-input);color:var(--colour-text-tertiary);width:100%;font-size:var(--font-size-base)}.input--with-right-element{padding-right:2.5rem}.input:focus{outline:none}.input--error{border-color:#f44336}.input-right-element{position:absolute;right:var(--spacing-sm);display:flex;align-items:center;justify-content:center;padding:var(--spacing-xs);background:none;border:none;cursor:pointer;color:var(--colour-text-secondary);transition:color .2s 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var(--spacing-lg);font-size:var(--font-size-lg);text-align:left;border-radius:var(--radius-lg)}.expense-form .input-error{font-size:var(--font-size-sm);color:#f44336}.expense-form-actions{display:flex;justify-content:space-between;gap:var(--spacing-sm)}.expense-form-actions>*{flex:1}.expense-form-actions-left{display:flex;gap:var(--spacing-sm)}.expense-form-category-group,.expense-form-switch-group{display:flex;flex-direction:column;gap:var(--spacing-xs)}.bottom-nav{background-color:var(--colour-bg-card);border-top:2px solid var(--colour-grey);padding:var(--spacing-sm) 0;position:fixed;bottom:0;left:0;right:0;z-index:100;box-shadow:0 -2px 8px 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rgba(0,0,0,.1);flex-shrink:0}.color-preview-value{font-family:monospace;font-size:var(--font-size-sm);color:var(--colour-text-secondary)}.icon-button{display:flex;align-items:center;justify-content:center;border:none;background:none;cursor:pointer;border-radius:var(--radius-full);color:var(--colour-text-primary);transition:background-color .2s ease}.icon-button:hover{background-color:#0000000a}.icon-button:active{background-color:#00000014}.icon-button:disabled{opacity:.3;cursor:not-allowed}.icon-button:disabled:hover{background-color:transparent}.icon-button--small{width:32px;height:32px}.icon-button--medium{width:40px;height:40px}.page-layout{min-height:100vh;background-color:var(--colour-bg);display:flex;flex-direction:column}.page-layout .app-bar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md) var(--spacing-md);padding-top:max(var(--spacing-md),env(safe-area-inset-top));background-color:var(--colour-bg);border-bottom:1px solid rgba(0,0,0,.08);min-height:73px}.page-layout .icon-button{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:none;background:none;cursor:pointer;border-radius:var(--radius-full);color:var(--colour-text-primary);transition:background-color .2s ease}.page-layout .icon-button:hover{background-color:#0000000a}.page-layout .icon-button:active{background-color:#00000014}.page-layout .app-bar__title{font-size:var(--font-size-xl);font-weight:400;color:var(--colour-text-primary);flex:1;margin:0}.page-layout .content{flex:1;padding:var(--spacing-lg) var(--spacing-md);padding-bottom:calc(var(--spacing-xl) + env(safe-area-inset-bottom));max-width:600px;margin:0 auto;width:100%}.select-group{display:flex;flex-direction:column;gap:var(--spacing-xs)}.select-label{font-size:var(--font-size-lg);font-weight:500;color:var(--colour-text-primary);margin-bottom:5px}.select-wrapper{position:relative;display:flex;align-items:center}.select{padding:var(--spacing-md) var(--spacing-lg);border:1px solid var(--colour-border-input);border-radius:var(--radius-lg);background-color:var(--colour-bg-input);color:var(--colour-text-tertiary);width:100%;font-family:inherit;font-size:var(--font-size-base);appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right calc(var(--spacing-lg) + var(--spacing-sm)) center;padding-right:calc(var(--spacing-lg) * 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0}.empty-state-description{font-size:var(--font-size-sm)}.alert{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);margin-bottom:var(--spacing-md);border-radius:var(--radius-md)}.alert--error{background:#ffebee;color:#c62828}.alert svg{flex-shrink:0}@media(max-width:480px){.category-card-header{padding:var(--spacing-sm) var(--spacing-md)}.category-actions{margin-right:var(--spacing-sm)}.subcategory-list{padding:var(--spacing-xs) var(--spacing-sm)}}.card{background-color:var(--colour-bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--spacing-md)}.card--bordered{border:1px solid rgba(0,0,0,.08)}.expense-card{background:#fff;border:1px solid #ddd;border-radius:8px;padding:15px;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 4px #0000001a}.expense-card:hover{box-shadow:0 4px 8px #00000026;transform:translateY(-2px)}.expense-card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.expense-amount{font-size:var(--font-size-2xl);font-weight:700;color:#333}.expense-category{font-size:var(--font-size-base);font-weight:500}.expense-note{font-size:var(--font-size-base);color:#666;margin-top:8px;line-height:1.4}@media(max-width:768px){.expense-card-top{flex-direction:row;align-items:flex-start;gap:10px}.expense-amount{font-size:var(--font-size-lg)}}.swipeable{transition:transform .15s ease-out,opacity .15s ease-out;will-change:transform,opacity}.swipeable--swiping{transform:translate(var(--swipe-offset, 0px));opacity:var(--swipe-opacity, 1);transition:none}.card-list{margin-top:20px;padding:0 20px 60px;max-width:500px;margin-left:auto;margin-right:auto}.expense-list-page{touch-action:pan-y pinch-zoom}.expense-list__content{animation:fadeInScale .3s cubic-bezier(.2,0,0,1)}.expense-list__total{padding:var(--spacing-lg);margin-bottom:var(--spacing-lg);text-align:center}.expense-list__total-label{display:block;font-size:var(--font-size-sm);color:var(--colour-text-secondary);margin-bottom:var(--spacing-sm)}.expense-list__total-amount{display:block;font-size:var(--font-size-3xl);font-weight:600;color:var(--colour-text-primary)}.expense-list__filter-info{padding:var(--spacing-md);margin-bottom:var(--spacing-md);text-align:center;background:var(--colour-bg-secondary)}.expense-list__filter-label{display:block;font-size:var(--font-size-xs);color:var(--colour-text-secondary);margin-bottom:var(--spacing-xs);text-transform:uppercase;letter-spacing:.5px}.expense-list__filter-name{display:block;font-size:var(--font-size-base);font-weight:600}.date-group{margin-bottom:30px}.date-header{display:flex;justify-content:space-between;align-items:center;padding:10px 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