:root{--bg: #fafaf7;--bg-elevated: #ffffff;--fg: #0a0a0a;--fg-muted: #525252;--fg-subtle: #737373;--border: #e5e5e0;--border-strong: #d4d4d0;--accent: #00d26a;--accent-hover: #00b85c;--accent-soft: rgba(0, 210, 106, .1);--danger: #dc2626;--shadow-sm: 0 1px 2px rgba(10, 10, 10, .04);--shadow-md: 0 4px 16px -4px rgba(10, 10, 10, .08);--shadow-lg: 0 24px 48px -12px rgba(10, 10, 10, .18);--sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-pill: 9999px;--container: 1280px;--gutter: 24px;--section-py: clamp(64px, 10vw, 128px);--ease-out: cubic-bezier(.22, 1, .36, 1);color-scheme:light dark;font-family:var(--sans);font-size:18px;line-height:1.6;color:var(--fg);background:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme: 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var(--border);box-shadow:var(--shadow-lg);overflow:hidden}.how-layer{position:absolute;top:0;right:0;bottom:0;left:0;padding:28px;display:flex;align-items:center;justify-content:center;opacity:0}.how-layer.is-active{opacity:1}.layer-stage{display:flex;align-items:center;gap:16px;width:100%;justify-content:center}.layer-stage-stack{flex-direction:column;align-items:stretch;gap:12px}.layer-stage-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);grid-template-rows:auto minmax(0,1fr);grid-template-areas:"progress progress" "photo result";gap:24px 28px;align-items:center;width:100%}.layer-stage-grid .layer-progress{grid-area:progress}.layer-stage-grid .layer-receipt-photo{grid-area:photo;justify-self:end}.layer-stage-grid .layer-result{grid-area:result;justify-self:start}.layer-receipt-photo{position:relative;background:#fff;padding:12px;border-radius:14px;box-shadow:var(--shadow-md);transform:rotate(-2deg);flex-shrink:0;width:clamp(180px,22vw,230px);overflow:hidden}.layer-receipt-photo .receipt{font-size:11px;gap:4px}.layer-receipt-photo .receipt-head{font-size:13px}.layer-receipt-photo .receipt-total{font-size:12px}.receipt-scan{position:absolute;left:-10%;right:-10%;top:0;height:32px;background:linear-gradient(180deg,#00d26a00,#00d26a14 30%,#00d26a73,#00d26a14 70%,#00d26a00);filter:blur(.5px);mix-blend-mode:multiply;pointer-events:none;z-index:2}.receipt-scan:after{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--accent);box-shadow:0 0 10px var(--accent);transform:translateY(-50%)}.receipt-grid{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;background-image:linear-gradient(0deg,rgba(0,210,106,.07) 1px,transparent 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var(--border);box-shadow:var(--shadow-md);overflow:hidden}.layer-result-head{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,var(--accent-soft),transparent)}.layer-result-badge{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--fg-muted);transition:color .4s var(--ease-out)}.layer-result-badge svg{width:18px;height:18px;flex-shrink:0}.badge-icon-pending{animation:badge-spin 1.1s linear infinite}.badge-icon-pending circle{stroke-dasharray:32;stroke-dashoffset:16}@keyframes badge-spin{to{transform:rotate(360deg)}}.badge-icon-done,.badge-text-done{display:none}.layer-result-badge.is-done{color:var(--accent)}.layer-result-badge.is-done .badge-icon-pending,.layer-result-badge.is-done .badge-text-pending{display:none}.layer-result-badge.is-done .badge-icon-done{display:block}.layer-result-badge.is-done 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