.bph-calculator-wrapper{width:100%;max-width:100%;margin:2rem auto;padding:0 1rem;box-sizing:border-box;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}.bph-calculator-wrapper *{box-sizing:border-box}.bph-calculator-container{background:linear-gradient(135deg,#fff5f7 0%,#fff 100%);border-radius:20px;box-shadow:0 4px 20px rgb(219 112 147 / .12);overflow:hidden;border:2px solid #ffe4e9;max-width:700px;margin:0 auto}.bph-calculator-header{background:linear-gradient(135deg,#ff6b9d 0%,#c9184a 100%);color:#fff;padding:2rem 1.5rem;text-align:center}.bph-calculator-title{font-size:1.5rem;font-weight:700;margin:0 0 .5rem 0;display:flex;align-items:center;justify-content:center;gap:.5rem;flex-wrap:wrap;line-height:1.3;color:#fff}.bph-icon{width:24px;height:24px;flex-shrink:0}.bph-calculator-subtitle{font-size:.95rem;margin:0;opacity:.95;font-weight:400;line-height:1.4}.bph-calculator-body{padding:2rem 1.5rem}.bph-unit-toggle{display:flex;gap:.5rem;background:#fff;padding:.25rem;border-radius:10px;margin-bottom:1.5rem;box-shadow:0 2px 8px rgb(0 0 0 / .08)}.bph-unit-btn{flex:1;padding:.65rem 1rem;border:none;background:#fff0;color:#666;font-size:.9rem;font-weight:600;border-radius:8px;cursor:pointer;transition:all 0.3s ease}.bph-unit-btn.active{background:linear-gradient(135deg,#ff6b9d 0%,#c9184a 100%);color:#fff;box-shadow:0 2px 8px rgb(255 107 157 / .3)}.bph-input-group{margin-bottom:1.5rem}.bph-label{display:flex;align-items:center;gap:.4rem;margin-bottom:.6rem;color:#2d3748;font-weight:600;font-size:.9rem}.bph-label-text{line-height:1.3}.bph-tooltip{position:relative;display:inline-flex;cursor:help;flex-shrink:0}.bph-tooltip svg{width:16px;height:16px;stroke:#ff6b9d}.bph-tooltip-text{visibility:hidden;opacity:0;position:absolute;bottom:130%;left:50%;transform:translateX(-50%);background:#2d3748;color:#fff;padding:.5rem .75rem;border-radius:6px;font-size:.75rem;font-weight:400;white-space:nowrap;z-index:100;transition:all 0.3s ease;box-shadow:0 4px 12px rgb(0 0 0 / .2)}.bph-tooltip-text::after{content:"";position:absolute;top:100%;left:50%;transform:translateX(-50%);border:5px solid #fff0;border-top-color:#2d3748}.bph-tooltip:hover .bph-tooltip-text{visibility:visible;opacity:1}.bph-input-wrapper{position:relative;display:flex;align-items:center}.bph-input{width:100%;padding:.9rem 3rem .9rem 1rem;border:2px solid #ffe4e9;border-radius:10px;font-size:1rem;background:#fff;transition:all 0.3s ease}.bph-input:focus{outline:none;border-color:#ff6b9d;box-shadow:0 0 0 3px rgb(255 107 157 / .1)}.bph-input-unit{position:absolute;right:1rem;color:#ff6b9d;font-weight:600;font-size:.9rem}.bph-calculate-btn{width:100%;padding:1rem 1.5rem;background:linear-gradient(135deg,#ff6b9d 0%,#c9184a 100%);color:#fff;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer;transition:all 0.3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem;box-shadow:0 4px 15px rgb(255 107 157 / .3);margin-top:1.5rem}.bph-calculate-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgb(255 107 157 / .4)}.bph-btn-icon{width:18px;height:18px;flex-shrink:0}.bph-result-container{margin-top:1.5rem;padding:1.5rem;background:#fff;border-radius:12px;box-shadow:0 2px 12px rgb(0 0 0 / .08)}.bph-result-header{display:flex;align-items:center;gap:.6rem;margin-bottom:1.25rem}.bph-result-icon{width:24px;height:24px;stroke:#10b981;flex-shrink:0}.bph-result-header h3{margin:0;color:#2d3748;font-size:1.2rem;line-height:1.3}.bph-result-size{font-size:2.5rem;font-weight:800;color:#ff6b9d;text-align:center;margin:1.25rem 0;line-height:1}.bph-result-details{text-align:center;color:#4a5568;font-size:.95rem;margin-bottom:1.5rem;line-height:1.6}.bph-sister-sizes{margin:1.5rem 0;padding:1.25rem;background:#fff5f7;border-radius:10px}.bph-sister-sizes h4{margin:0 0 .4rem 0;color:#2d3748;font-size:1rem}.bph-sister-desc{color:#718096;font-size:.85rem;margin:0 0 1rem 0}.bph-sister-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(70px,1fr));gap:.6rem}.bph-sister-size{background:#fff;padding:.75rem;border-radius:8px;text-align:center;font-weight:700;color:#c9184a;border:2px solid #ffe4e9;font-size:.95rem}.bph-tips-section{margin:1.5rem 0}.bph-tips-section h4{margin:0 0 1rem 0;color:#2d3748;font-size:1rem}.bph-tips-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.75rem}.bph-tip-card{background:#fff5f7;padding:.9rem;border-radius:8px;display:flex;gap:.6rem;align-items:flex-start}.bph-tip-icon{background:#10b981;color:#fff;min-width:22px;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700;flex-shrink:0}.bph-tip-card p{margin:0;font-size:.85rem;color:#4a5568;line-height:1.5}.bph-recalculate-btn{width:100%;padding:.9rem;background:#fff;color:#ff6b9d;border:2px solid #ff6b9d;border-radius:10px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all 0.3s ease;margin-top:1.25rem}.bph-recalculate-btn:hover{background:#fff5f7}.bph-calculator-footer{padding:1.25rem 1.5rem;background:#fff5f7;border-top:2px solid #ffe4e9}.bph-disclaimer{display:flex;align-items:flex-start;gap:.6rem;margin:0;font-size:.85rem;color:#718096;line-height:1.6}.bph-info-icon{width:18px;height:18px;stroke:#ff6b9d;flex-shrink:0;margin-top:2px}@media (max-width:768px){.bph-calculator-wrapper{padding:0 .75rem;margin:1.5rem auto}.bph-calculator-header{padding:1.5rem 1rem}.bph-calculator-title{font-size:1.3rem}.bph-icon{width:20px;height:20px}.bph-calculator-subtitle{font-size:.9rem}.bph-calculator-body{padding:1.5rem 1rem}.bph-result-container{padding:1.25rem 1rem}.bph-result-size{font-size:2rem}.bph-tips-grid{grid-template-columns:1fr}.bph-sister-grid{grid-template-columns:repeat(2,1fr)}.bph-tooltip-text{white-space:normal;width:180px}.bph-calculator-footer{padding:1rem}}@media (max-width:480px){.bph-calculator-title{font-size:1.15rem}.bph-icon{width:18px;height:18px}.bph-input{padding:.8rem 2.75rem .8rem .9rem}.bph-calculate-btn{padding:.9rem;font-size:.95rem}.bph-result-size{font-size:1.75rem}.bph-result-header h3{font-size:1.05rem}}