.salestax-calculator{--salestax-primary: #d97706;--salestax-primary-dark: #b45309;--salestax-secondary: #ea580c;--salestax-accent: #f59e0b;--salestax-bg: #fffbeb;--salestax-card-bg: #ffffff;--salestax-text: #1e293b;--salestax-text-muted: #64748b;--salestax-border: #fde68a;--salestax-shadow: 0 4px 20px rgba(217, 119, 6, .12);max-width:900px;margin:0 auto;font-family:system-ui,-apple-system,sans-serif}.salestax-header{text-align:center;margin-bottom:2rem}.salestax-title{font-size:2rem;font-weight:800;color:var(--salestax-primary);margin:0 0 .5rem}.salestax-description{color:var(--salestax-text-muted);font-size:1.1rem;margin:0}.salestax-formula-container{background:linear-gradient(135deg,var(--salestax-bg) 0%,#fef3c7 100%);border-radius:16px;padding:1.5rem;margin-bottom:2rem;border:1px solid var(--salestax-border)}.salestax-formula-title{font-size:1.1rem;font-weight:700;color:var(--salestax-primary);margin:0 0 1rem;text-align:center}.salestax-formula-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.salestax-formula-card{background:var(--salestax-card-bg);border-radius:12px;padding:1rem;text-align:center;box-shadow:0 2px 8px #0000000f}.salestax-formula-label{display:block;font-size:.85rem;font-weight:600;color:var(--salestax-text-muted);margin-bottom:.5rem}.salestax-formula-math{font-size:1rem;color:var(--salestax-text);overflow-x:auto;padding:.25rem 0}.salestax-form-container{background:var(--salestax-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--salestax-shadow);margin-bottom:2rem}.salestax-mode-toggle{display:flex;gap:.5rem;margin-bottom:1.5rem;background:var(--salestax-bg);padding:.375rem;border-radius:12px}.salestax-mode-btn{flex:1;padding:.875rem 1rem;border:none;border-radius:10px;background:transparent;color:var(--salestax-text-muted);font-weight:600;font-size:.9rem;cursor:pointer;transition:all .2s ease}.salestax-mode-btn:hover{color:var(--salestax-primary)}.salestax-mode-btn.active{background:linear-gradient(135deg,var(--salestax-primary) 0%,var(--salestax-secondary) 100%);color:#fff;box-shadow:0 2px 8px #d977064d}.salestax-form{display:flex;flex-direction:column;gap:1.25rem}.salestax-input-group{display:flex;flex-direction:column;gap:.5rem}.salestax-label{font-weight:600;font-size:.9rem;color:var(--salestax-text)}.salestax-input-wrapper{position:relative;display:flex;align-items:center}.salestax-input-prefix{position:absolute;left:1rem;color:var(--salestax-text-muted);font-weight:600}.salestax-input-suffix{position:absolute;right:1rem;color:var(--salestax-text-muted);font-weight:600}.salestax-input{width:100%;padding:.875rem 1rem .875rem 2rem;border:2px solid var(--salestax-border);border-radius:10px;font-size:1.1rem;transition:all .2s ease;background:var(--salestax-bg)}.salestax-input-rate{padding-left:1rem;padding-right:2.5rem;text-align:center}.salestax-input:focus{outline:none;border-color:var(--salestax-primary);background:#fff;box-shadow:0 0 0 4px #d977061a}.salestax-presets{background:var(--salestax-bg);border-radius:12px;padding:1rem}.salestax-presets-label{display:block;font-size:.85rem;font-weight:600;color:var(--salestax-text-muted);margin-bottom:.75rem}.salestax-presets-grid{display:flex;flex-wrap:wrap;gap:.5rem}.salestax-preset-btn{padding:.5rem .75rem;border:2px solid var(--salestax-border);border-radius:8px;background:#fff;color:var(--salestax-text);font-size:.8rem;font-weight:600;cursor:pointer;transition:all .2s ease}.salestax-preset-btn:hover{border-color:var(--salestax-primary);color:var(--salestax-primary)}.salestax-preset-btn.active{background:var(--salestax-primary);border-color:var(--salestax-primary);color:#fff}.salestax-buttons{display:flex;gap:1rem;margin-top:.5rem}.salestax-btn{flex:1;padding:1rem;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s ease}.salestax-btn-primary{background:linear-gradient(135deg,var(--salestax-primary) 0%,var(--salestax-secondary) 100%);color:#fff;box-shadow:0 4px 15px #d977064d}.salestax-btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #d9770666}.salestax-btn-secondary{background:var(--salestax-bg);color:var(--salestax-text-muted);border:2px solid var(--salestax-border)}.salestax-btn-secondary:hover{border-color:var(--salestax-primary);color:var(--salestax-primary)}.salestax-results{background:var(--salestax-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--salestax-shadow);margin-bottom:2rem}.salestax-results-title{font-size:1.25rem;font-weight:700;color:var(--salestax-primary);margin:0 0 1.5rem;text-align:center}.salestax-results-visual{margin-bottom:1.5rem}.salestax-visual-bar{display:flex;height:50px;border-radius:12px;overflow:hidden;box-shadow:inset 0 2px 4px #0000001a}.salestax-bar-pretax{background:linear-gradient(135deg,#22c55e,#16a34a);display:flex;align-items:center;justify-content:center;transition:width .5s ease}.salestax-bar-tax{background:linear-gradient(135deg,var(--salestax-primary) 0%,var(--salestax-secondary) 100%);display:flex;align-items:center;justify-content:center;transition:width .5s ease}.salestax-bar-label{color:#fff;font-weight:700;font-size:.85rem;text-shadow:0 1px 2px rgba(0,0,0,.2)}.salestax-results-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:1rem}.salestax-result-card{background:var(--salestax-bg);border-radius:12px;padding:1.25rem;text-align:center}.salestax-result-highlight{background:linear-gradient(135deg,#fef3c7,#fde68a)}.salestax-result-total{background:linear-gradient(135deg,var(--salestax-primary) 0%,var(--salestax-secondary) 100%)}.salestax-result-total .salestax-result-label,.salestax-result-total .salestax-result-value{color:#fff}.salestax-result-label{display:block;font-size:.8rem;font-weight:600;color:var(--salestax-text-muted);margin-bottom:.5rem}.salestax-result-value{font-size:1.5rem;font-weight:800;color:var(--salestax-text)}.salestax-result-highlight .salestax-result-value{color:var(--salestax-primary)}.salestax-result-rate{text-align:center;padding:.75rem;background:var(--salestax-bg);border-radius:8px}.salestax-rate-label{color:var(--salestax-text-muted);font-size:.9rem}.salestax-rate-value{font-weight:700;color:var(--salestax-primary);margin-left:.5rem}.salestax-content{margin-top:3rem}.salestax-content-section{margin-bottom:2.5rem}.salestax-content-title{font-size:1.5rem;font-weight:700;color:var(--salestax-text);margin:0 0 1rem;padding-bottom:.5rem;border-bottom:3px solid var(--salestax-primary)}.salestax-content-text{color:var(--salestax-text-muted);line-height:1.7;margin:0 0 1rem}.salestax-features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1.5rem}.salestax-feature-card{background:var(--salestax-bg);border-radius:12px;padding:1.25rem;text-align:center}.salestax-feature-icon{font-size:2rem;display:block;margin-bottom:.75rem}.salestax-feature-title{font-size:1rem;font-weight:700;color:var(--salestax-text);margin:0 0 .5rem}.salestax-feature-desc{font-size:.85rem;color:var(--salestax-text-muted);margin:0;line-height:1.5}.salestax-table-wrapper{overflow-x:auto;margin:1.5rem 0;border-radius:12px;box-shadow:var(--salestax-shadow)}.salestax-table{width:100%;border-collapse:collapse;background:#fff;font-size:.9rem}.salestax-table th{background:var(--salestax-primary);color:#fff;padding:1rem;text-align:left;font-weight:600}.salestax-table td{padding:.875rem 1rem;border-bottom:1px solid var(--salestax-border)}.salestax-table tr:hover{background:var(--salestax-bg)}.salestax-table-state{font-weight:700;color:var(--salestax-primary)}.salestax-tips-grid{display:grid;gap:1rem;margin-top:1.5rem}.salestax-tip-card{display:flex;gap:1rem;background:var(--salestax-card-bg);border-radius:12px;padding:1.25rem;box-shadow:0 2px 8px #0000000f;border-left:4px solid var(--salestax-primary)}.salestax-tip-icon{font-size:1.5rem;flex-shrink:0}.salestax-tip-content{flex:1}.salestax-tip-title{font-size:1rem;font-weight:700;color:var(--salestax-text);margin:0 0 .5rem}.salestax-tip-text{font-size:.9rem;color:var(--salestax-text-muted);margin:0;line-height:1.6}.salestax-faqs{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem}.salestax-faq-item{background:var(--salestax-card-bg);border-radius:12px;padding:1.25rem;box-shadow:0 2px 8px #0000000f}.salestax-faq-question{font-size:1rem;font-weight:700;color:var(--salestax-primary);margin:0 0 .75rem}.salestax-faq-answer{font-size:.9rem;color:var(--salestax-text-muted);margin:0;line-height:1.6}@media (max-width: 768px){.salestax-title{font-size:1.5rem}.salestax-formula-grid{grid-template-columns:1fr}.salestax-mode-toggle{flex-direction:column}.salestax-results-grid,.salestax-features-grid{grid-template-columns:1fr}.salestax-presets-grid{justify-content:center}}