.calculator-shell{max-width:1200px;margin:0 auto;padding:1.5rem 1rem 3rem;min-height:100vh;display:flex;flex-direction:column;gap:2rem}.dev-notice{background-color:var(--accent);color:#fff;padding:.5rem 1rem;border-radius:6px;font-size:.9rem;margin-bottom:1rem;animation:fadeIn .5s ease-out}.dev-notice-content{display:flex;align-items:center;gap:.5rem;max-width:1200px;margin:0 auto}.dev-notice-icon{font-size:1.1em}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.calculator-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;background:var(--surface-raised);border:1px solid var(--border);border-radius:18px;padding:16px 20px;box-shadow:var(--shadow-sm);overflow:visible;align-items:flex-start}.calculator-brand{display:flex;align-items:center;gap:12px;padding-top:2px}.calculator-brand{display:flex;align-items:center;gap:12px}.calculator-logo{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--accent);color:#fff;font-weight:700;letter-spacing:.08em}.brand-name{font-size:18px;font-weight:700;margin:0}.brand-tagline{margin:0;font-size:13px;color:var(--text-muted)}.header-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;overflow:visible;align-self:center;margin-top:2px}.badge-button{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;border:1px solid transparent;background:var(--badge-bg);color:var(--badge-text);font-size:12px;text-transform:uppercase;letter-spacing:.08em;font-weight:600;cursor:pointer;transition:filter .2s ease,transform .2s ease}.badge-button:hover,.badge-button:focus-visible{filter:brightness(1.05);transform:translateY(-1px)}.header-reference-btn{font-size:.85rem}.header-actions::-webkit-scrollbar{display:none}.calculator-notice{border-radius:14px;padding:10px 14px;background:var(--notice-bg);border:1px solid var(--notice-border);color:var(--notice-text);font-size:14px;width:fit-content}.calculator-main{display:flex;flex-direction:column;gap:24px}.panel{background:var(--surface);border-radius:20px;border:1px solid var(--border);box-shadow:var(--shadow);padding:24px;display:flex;flex-direction:column;gap:18px;height:100%;box-sizing:border-box}.panel-header{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px}.panel-title{margin:0;font-size:24px;font-weight:700;letter-spacing:-.01em}.panel-subtitle{margin:-8px 0 0;color:var(--text-muted)}.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 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var(--border);padding:16px;display:flex;flex-direction:column;gap:6px}.muted{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted)}.rate-value{margin:0;font-weight:700;font-size:20px}.line-items{display:flex;flex-direction:column;gap:14px}.line-items-actions{margin-top:18px;display:flex;align-items:stretch;gap:10px;flex-wrap:wrap}.preset-dropdown{position:relative;min-width:180px;flex:1;width:100%}.preset-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--surface-raised);border:1px solid var(--border);color:var(--text-primary);cursor:pointer;font-size:.95rem;padding:0 2.5rem 0 1rem;width:100%;transition:background .2s ease,border-color .2s ease;height:44px;line-height:1.45;-webkit-tap-highlight-color:rgba(0,0,0,0);touch-action:manipulation;background-image:none}.preset-select:hover{border-color:var(--accent)}.preset-select:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #8b5cf659}.preset-select 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a:focus-visible{color:var(--accent-strong)}.modal-footnote{margin-top:1.5rem;font-size:.85rem;color:var(--text-muted)}.line-item{display:grid;grid-template-columns:2fr 2fr 1.5fr auto;gap:12px;margin-bottom:12px;align-items:center;position:relative}.line-item{padding:16px;border-radius:16px;border:1px solid var(--border);background:var(--surface-raised)}.amount-field{display:inline-flex;align-items:center;gap:6px;padding:0 14px;border-radius:12px;border:1px solid var(--input-border);background:var(--input-bg);height:44px}.amount-field span{color:var(--text-muted);font-size:14px;display:inline-flex;align-items:center;justify-content:center}.amount-field .input{border:none;background:transparent;padding:0;height:100%;line-height:1.45;text-align:left;min-width:0;flex:1}.panel.actions{align-items:center;justify-content:center;padding:16px}.totals-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}.total-card{background:var(--surface-raised);border:1px solid 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