:root{--color-primary: #fcd535;--color-primary-active: #f0b90b;--color-primary-disabled: #3a3a1f;--color-ink: #181a20;--color-body-dark: #eaecef;--color-body-light: #181a20;--color-muted: #9fa8b5;--color-muted-strong: #cbd2dc;--color-hairline-light: #eaecef;--color-hairline-dark: #2b3139;--color-border-strong: #cdd1d6;--color-canvas-dark: #0b0e11;--color-canvas-light: #ffffff;--color-surface-card-dark: #1e2329;--color-surface-elevated-dark: #2b3139;--color-surface-soft-light: #fafafa;--color-surface-strong-light: #f5f5f5;--color-on-primary: #181a20;--color-on-dark: #ffffff;--color-trading-up: #0ecb81;--color-trading-down: #ff6b7e;--color-accent-turquoise: #2dbdb6;--color-info: #3b82f6;--bg-canvas: var(--color-canvas-dark);--bg-surface: var(--color-surface-card-dark);--bg-surface-elevated: var(--color-surface-elevated-dark);--bg-input: #12161c;--border-hairline: var(--color-hairline-dark);--border-focus: var(--color-primary);--text-main: var(--color-on-dark);--text-body: var(--color-body-dark);--text-muted: var(--color-muted);--text-muted-strong: var(--color-muted-strong);--radius-xs: 2px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 12px;--radius-pill: 9999px;--font-display: "BinanceNova", "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-body: "BinanceNova", "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-number: "BinancePlex", "IBM Plex Mono", "JetBrains Mono", monospace;--space-xxs: 4px;--space-xs: 8px;--space-sm: 12px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-xxl: 48px;--space-section: 80px;--transition-fast: .15s ease;--transition-normal: .25s cubic-bezier(.4, 0, .2, 1)}[data-theme=light]{--bg-canvas: var(--color-canvas-light);--bg-surface: #ffffff;--bg-surface-elevated: var(--color-surface-strong-light);--bg-input: #ffffff;--border-hairline: var(--color-hairline-light);--border-focus: var(--color-primary-active);--text-main: var(--color-ink);--text-body: var(--color-body-light);--text-muted: #57606a;--text-muted-strong: #24292f}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-body);font-size:14px;line-height:1.5;scroll-behavior:smooth;color:var(--text-body);background-color:var(--bg-canvas);-webkit-font-smoothing:antialiased}body{min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden;background-color:var(--bg-canvas);color:var(--text-body);transition:background-color var(--transition-normal),color var(--transition-normal)}.tabular-number,.calc-input,.results-hero-amount,.breakdown-value,.table-input,.rate-chip{font-family:var(--font-number);font-feature-settings:"tnum" on,"lnum" on}.skip-to-content{position:absolute;top:-120px;left:16px;background:var(--color-primary);color:var(--color-on-primary);padding:10px 18px;font-weight:700;font-size:13px;border-radius:var(--radius-md);z-index:9999;transition:top .2s cubic-bezier(.4,0,.2,1);text-decoration:none;box-shadow:0 4px 16px #0006}.skip-to-content:focus{top:16px;outline:2px solid #ffffff}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--space-lg)}@media(max-width:480px){.container{padding:0 16px}}.navbar{position:sticky;top:0;z-index:100;height:64px;background-color:var(--bg-canvas);border-bottom:1px solid var(--border-hairline);display:flex;align-items:center;transition:background-color var(--transition-normal),border-color var(--transition-normal)}.nav-container{display:flex;align-items:center;justify-content:space-between;width:100%}.brand{display:flex;align-items:center;gap:var(--space-sm);text-decoration:none;color:var(--text-main);font-family:var(--font-display);font-weight:700;font-size:1.25rem;letter-spacing:-.3px}.brand-icon{width:32px;height:32px;background-color:var(--color-primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--color-on-primary);box-shadow:0 2px 8px #fcd53540}.brand-icon svg{width:18px;height:18px;stroke:var(--color-on-primary)}.brand-domain{color:var(--color-primary)}.nav-actions{display:flex;align-items:center;gap:var(--space-lg)}.nav-links{display:flex;align-items:center;gap:var(--space-lg);list-style:none}.nav-links a{text-decoration:none;color:var(--color-muted-strong);font-size:14px;font-weight:500;transition:color var(--transition-fast)}.nav-links a:hover{color:var(--color-primary)}.theme-toggle-btn{background:var(--bg-surface);border:1px solid var(--border-hairline);border-radius:var(--radius-md);width:44px;height:44px;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-muted);transition:all var(--transition-fast)}.theme-toggle-btn:hover{color:var(--color-primary);border-color:var(--color-primary)}.theme-toggle-btn svg{width:18px;height:18px}.mobile-menu-btn{display:none;background:none;border:none;color:var(--text-main);cursor:pointer;padding:10px;min-width:44px;min-height:44px;border-radius:var(--radius-md);align-items:center;justify-content:center}.mobile-menu-btn svg{width:24px;height:24px}@media(max-width:768px){.mobile-menu-btn{display:flex}.nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg-surface);border-bottom:1px solid var(--border-hairline);padding:var(--space-lg);flex-direction:column;gap:var(--space-xs);box-shadow:0 12px 32px #0006;z-index:999}.nav-links a{display:block;padding:10px 14px;border-radius:var(--radius-sm);font-size:15px}.nav-links a:hover{background:var(--bg-surface-elevated)}.nav-links.mobile-open{display:flex}}.hero{padding:56px 0 36px;text-align:center;background-color:var(--bg-canvas)}.hero-badge{display:inline-flex;align-items:center;gap:var(--space-xs);padding:4px 12px;border-radius:var(--radius-pill);background:#fcd5351a;color:var(--color-primary);font-size:12px;font-weight:600;margin-bottom:var(--space-md);border:1px solid rgba(252,213,53,.2)}.hero-title{font-family:var(--font-display);font-size:clamp(2rem,3.8vw,3.25rem);font-weight:700;line-height:1.15;letter-spacing:-.5px;color:var(--color-on-dark);margin-bottom:var(--space-sm)}[data-theme=light] .hero-title{color:var(--color-ink)}.hero-title .gradient-text{color:var(--color-primary)}.hero-subtitle{font-size:15px;color:var(--color-muted-strong);max-width:650px;margin:0 auto var(--space-lg);line-height:1.6}.stats-band{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-md);max-width:860px;margin:0 auto var(--space-xl)}@media(max-width:640px){.stats-band{grid-template-columns:1fr;gap:var(--space-sm)}}.stat-item{background:var(--bg-surface);border:1px solid var(--border-hairline);border-radius:var(--radius-lg);padding:var(--space-md) var(--space-lg);text-align:left}.stat-number{font-family:var(--font-number);font-size:24px;font-weight:700;color:var(--color-primary);line-height:1.1;margin-bottom:2px}.stat-label{font-size:12px;color:var(--color-muted);font-weight:500}.disclaimer-banner{display:flex;align-items:center;justify-content:center;gap:var(--space-xs);font-size:12px;color:var(--color-muted);background:var(--bg-surface);padding:6px 14px;border-radius:var(--radius-pill);width:fit-content;margin:0 auto;border:1px solid var(--border-hairline)}.disclaimer-banner svg{width:14px;height:14px;flex-shrink:0;color:var(--color-primary)}.calculator-section{padding:var(--space-sm) 0 var(--space-section)}.calc-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:var(--space-lg);align-items:start}@media(max-width:992px){.calc-grid{grid-template-columns:1fr;gap:var(--space-lg)}}.calc-card{background:var(--bg-surface);border:1px solid var(--border-hairline);border-radius:var(--radius-xl);padding:var(--space-lg)}.calc-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-lg);padding-bottom:var(--space-md);border-bottom:1px solid var(--border-hairline);flex-wrap:wrap;gap:var(--space-sm)}.calc-tabs{display:flex;background:var(--bg-canvas);padding:3px;border-radius:var(--radius-md);gap:3px;border:1px solid var(--border-hairline)}.tab-btn{background:transparent;border:none;padding:6px 14px;font-size:13px;font-weight:600;border-radius:var(--radius-sm);color:var(--color-muted);cursor:pointer;display:flex;align-items:center;gap:6px;transition:all var(--transition-fast);white-space:nowrap}.tab-btn.active{background:var(--bg-surface);color:var(--color-primary)}.calc-reset-btn{background:none;border:none;color:var(--color-muted);font-size:13px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:4px;padding:4px 8px;border-radius:var(--radius-sm);transition:color var(--transition-fast)}.calc-reset-btn:hover{color:var(--color-primary)}.calc-reset-btn svg{width:14px;height:14px}.form-group{margin-bottom:var(--space-lg)}.form-label{display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:600;margin-bottom:var(--space-xs);color:var(--text-main)}.form-label-hint{font-size:12px;font-weight:400;color:var(--color-muted)}.mode-selector{display:grid;grid-template-columns:1fr 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var(--transition-fast)}.country-select:focus{outline:none;border-color:var(--color-primary)}.select-arrow{position:absolute;right:14px;top:50%;transform:translateY(-50%);pointer-events:none;color:var(--color-muted)}.select-arrow svg{width:16px;height:16px}.rate-chips-container{display:flex;flex-wrap:wrap;gap:var(--space-xs);margin-top:var(--space-xs)}.rate-chip{background:var(--bg-canvas);border:1px solid var(--border-hairline);border-radius:var(--radius-sm);padding:4px 10px;font-size:12px;font-weight:500;color:var(--color-muted);cursor:pointer;transition:all var(--transition-fast)}.rate-chip:hover{border-color:var(--color-primary);color:var(--color-primary)}.rate-chip.active{background:var(--bg-surface-elevated);color:var(--color-primary);border-color:var(--color-primary);font-weight:700}.input-affix-wrapper{position:relative;display:flex;align-items:center}.input-affix{position:absolute;left:14px;color:var(--color-muted-strong);font-weight:600;font-size:14px;pointer-events:none;user-select:none}.input-affix.suffix{left:auto;right:14px}.calc-input{width:100%;height:42px;background:var(--bg-input);border:1px solid var(--border-hairline);border-radius:var(--radius-lg);padding:0 14px 0 28px;font-size:15px;font-weight:600;color:var(--text-main);transition:border-color var(--transition-fast)}.calc-input.has-suffix{padding-left:14px;padding-right:32px}.calc-input:focus{outline:none;border-color:var(--color-primary)}.calc-input::placeholder{color:var(--color-muted);font-weight:400}.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md)}@media(max-width:540px){.two-cols{grid-template-columns:1fr}}.input-toggle-group{display:flex;align-items:stretch;width:100%}.input-toggle-group .calc-input{border-top-right-radius:0;border-bottom-right-radius:0;padding-left:14px;padding-right:14px}.toggle-type-btn{background:var(--bg-surface-elevated);border:1px solid var(--border-hairline);border-left:none;border-top-right-radius:var(--radius-lg);border-bottom-right-radius:var(--radius-lg);padding:0 14px;font-weight:700;font-size:13px;color:var(--color-primary);cursor:pointer;transition:all var(--transition-fast)}.toggle-type-btn:hover{background:#fcd53526}.checkbox-row{display:flex;align-items:center;gap:var(--space-xs);margin-top:var(--space-xs);font-size:12px;color:var(--color-muted-strong);cursor:pointer;user-select:none}.checkbox-row input[type=checkbox]{width:16px;height:16px;accent-color:var(--color-primary);cursor:pointer}.invoice-intro{margin-bottom:var(--space-md);font-size:13px;color:var(--color-muted-strong)}.invoice-table-wrapper{margin-top:var(--space-xs);border:1px solid var(--border-hairline);border-radius:var(--radius-lg);overflow:hidden}.invoice-table{width:100%;border-collapse:collapse}.invoice-table th{font-size:12px;font-weight:600;text-transform:uppercase;color:var(--color-muted);padding:10px 12px;background:var(--bg-canvas);border-bottom:1px solid var(--border-hairline);text-align:left}.invoice-table td{padding:8px 12px;vertical-align:middle;border-bottom:1px solid var(--border-hairline)}.invoice-table tr:last-child td{border-bottom:none}.table-input{height:34px!important;padding:0 10px!important;font-size:13px!important;font-weight:500!important}.btn-remove-item{background:none;border:none;color:var(--color-muted);cursor:pointer;padding:4px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:color var(--transition-fast)}.btn-remove-item:hover{color:var(--color-trading-down)}.results-card{background:var(--bg-surface);border:1px solid var(--border-hairline);border-radius:var(--radius-xl);padding:var(--space-lg);position:sticky;top:84px;display:flex;flex-direction:column;gap:var(--space-md)}.results-hero-box{background:var(--bg-canvas);border:1px solid var(--border-hairline);border-radius:var(--radius-lg);padding:var(--space-lg);text-align:center}.results-hero-label{font-size:12px;text-transform:uppercase;letter-spacing:.05em;font-weight:600;color:var(--color-muted);margin-bottom:var(--space-xs)}.results-hero-amount{font-size:clamp(2.4rem,4vw,3.25rem);font-weight:700;color:var(--color-trading-up);line-height:1.1;word-break:break-all}.results-hero-sub{margin-top:var(--space-xs);font-size:12px;color:var(--color-muted)}.proportion-bar-container{display:flex;flex-direction:column;gap:6px}.proportion-bar-header{display:flex;justify-content:space-between;font-size:12px;font-weight:600;font-family:var(--font-number);color:var(--color-muted-strong)}.proportion-bar{display:flex;height:6px;width:100%;border-radius:var(--radius-pill);overflow:hidden;background:var(--bg-canvas)}.bar-segment{height:100%;transition:width .3s ease}.bar-segment.net{background:#3b82f6}.bar-segment.tax{background:var(--color-primary)}.bar-segment.shipping{background:var(--color-accent-turquoise)}.proportion-legend{display:flex;align-items:center;gap:var(--space-md);font-size:11px;color:var(--color-muted)}.legend-dot{display:inline-block;width:6px;height:6px;border-radius:50%;margin-right:4px}.legend-dot.net{background:#3b82f6}.legend-dot.tax{background:var(--color-primary)}.legend-dot.shipping{background:var(--color-accent-turquoise)}.breakdown-title{font-family:var(--font-display);font-size:14px;font-weight:600;color:var(--text-main);margin-top:var(--space-xs)}.breakdown-list{display:flex;flex-direction:column;gap:var(--space-sm)}.breakdown-item{display:flex;align-items:center;justify-content:space-between;font-size:13px;padding-bottom:var(--space-sm);border-bottom:1px solid var(--border-hairline)}.breakdown-item:last-child{border-bottom:none;padding-bottom:0}.breakdown-item.highlight{font-weight:600;color:var(--color-primary);border-bottom-color:var(--color-primary)}.breakdown-label{color:var(--color-muted-strong)}.breakdown-value{font-weight:600;color:var(--text-main);text-align:right}.breakdown-value.discount{color:var(--color-trading-down)}.breakdown-value.tax{color:var(--color-primary)}.formula-explain-card{background:var(--bg-canvas);border:1px solid var(--border-hairline);border-radius:var(--radius-md);padding:10px 14px;font-size:12px;line-height:1.5;color:var(--color-muted-strong)}.results-actions{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-xs)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;font-size:13px;font-weight:600;border-radius:var(--radius-md);cursor:pointer;border:1px solid transparent;transition:all var(--transition-fast);text-decoration:none;font-family:inherit;white-space:nowrap}.btn-sm{padding:6px 12px;font-size:12px}.btn-primary{background-color:var(--color-primary);color:var(--color-on-primary);box-shadow:none}.btn-primary:hover{background-color:var(--color-primary-active)}.btn-secondary{background-color:var(--bg-canvas);border:1px solid var(--border-hairline);color:var(--text-main)}.btn-secondary:hover{background-color:var(--bg-surface-elevated);border-color:var(--color-muted)}.btn svg{width:14px;height:14px}.history-section{border-top:1px solid 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var(--space-xl)}.section-title{font-family:var(--font-display);font-size:clamp(1.6rem,2.8vw,2.25rem);font-weight:700;letter-spacing:-.3px;color:var(--text-main);margin-bottom:var(--space-xs)}.section-desc{font-size:14px;color:var(--color-muted-strong)}.table-search-wrapper{position:relative;max-width:480px;margin:var(--space-md) auto 0}.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--color-muted)}.table-search-input{width:100%;height:40px;background:var(--bg-surface);border:1px solid var(--border-hairline);border-radius:var(--radius-lg);padding:0 14px 0 38px;font-size:13px;color:var(--text-main);outline:none;transition:border-color var(--transition-fast)}.table-search-input:focus{border-color:var(--color-primary)}.table-card{background:var(--bg-surface);border:1px solid var(--border-hairline);border-radius:var(--radius-xl);overflow:hidden}.table-responsive{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:thin}.country-table{width:100%;border-collapse:collapse;text-align:left}.country-table th{background:var(--bg-canvas);padding:12px 16px;font-size:12px;text-transform:uppercase;letter-spacing:.05em;font-weight:600;color:var(--color-muted);border-bottom:1px solid var(--border-hairline)}.country-table td{padding:12px 16px;font-size:13px;border-bottom:1px solid var(--border-hairline);color:var(--text-main);transition:background-color var(--transition-fast)}.country-table tr:last-child td{border-bottom:none}.country-table tr:hover td{background-color:var(--bg-surface-elevated);cursor:pointer}.country-cell{display:flex;align-items:center;gap:var(--space-xs);font-weight:600}.flag-emoji{font-size:1.25rem;line-height:1}.tax-badge{display:inline-flex;align-items:center;padding:2px 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