.btn-copy-icon,.unit-switcher input{cursor:pointer}.lookup-btn,.tech-badge{text-transform:uppercase}:root{--brand-primary:#2563eb;--brand-dark:#0f172a;--brand-success:#10b981;--bg-soft:#f8fafc;--border-color:#e2e8f0}body{background-color:var(--bg-soft);color:#334155;font-family:Inter,sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased}.page-header{background:linear-gradient(135deg,var(--brand-dark) 0,#1e293b 100%);padding:100px 0 140px;color:#fff;text-align:center;border-bottom:5px solid var(--brand-primary)}.hp-value,h2{color:var(--brand-dark)}.page-header h1{font-weight:800;letter-spacing:-.05em;font-size:3.2rem;margin-bottom:15px}.calc-wrapper{max-width:900px;margin:-80px auto 60px;padding:66px 20px}.premium-card{background:#fff;border-radius:24px;border:1px solid var(--border-color);box-shadow:0 25px 50px -12px rgba(0,0,0,.1);padding:50px}#dynamicResults{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:20px;margin-top:40px}.result-tile{background:#fff;border:1px solid var(--border-color);padding:20px 25px;border-radius:16px;display:flex;justify-content:space-between;align-items:center;transition:.3s cubic-bezier(.4, 0, .2, 1);border-left:6px solid #cbd5e1}.copy-toast,.formula-card{background:var(--brand-dark)}.result-tile:hover{border-left-color:var(--brand-primary);background:#f8faff;transform:translateY(-4px);box-shadow:0 10px 15px -3px rgba(0,0,0,.05)}.hp-value{font-family:'Roboto Mono',monospace;font-weight:700;font-size:1.25rem}.content-body{max-width:950px;margin:0 auto;padding:60px 20px}h2{font-weight:800;margin-top:60px;margin-bottom:25px;font-size:2.2rem;letter-spacing:-.02em}.formula-card{padding:50px;border-radius:24px;text-align:center;margin:50px 0;color:#fff;box-shadow:0 20px 25px -5px rgba(0,0,0,.2)}.formula-card h3{color:#fff;font-size:2.5rem;margin:20px 0}.copy-toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);color:#fff;padding:14px 28px;border-radius:12px;display:none;z-index:9999;font-weight:600;animation:.3s slideUp}@keyframes slideUp{from{bottom:0;opacity:0}to{bottom:30px;opacity:1}}.btn-mode{border-radius:12px;font-weight:700;padding:14px 30px;border:2px solid transparent}.btn-copy-icon{color:var(--brand-primary);font-size:1.2rem;padding:8px;transition:.2s}.btn-copy-icon:hover{background:#dbeafe;border-radius:8px}.tech-badge{background:#fee2e2;color:#b91c1c;padding:4px 12px;border-radius:6px;font-size:.75rem;font-weight:800;margin-bottom:10px;display:inline-block}.how-to-card{background:#eff6ff;border:2px dashed var(--brand-primary);border-radius:16px;padding:30px;margin-bottom:40px}.unit-switcher{font-size:.85rem;color:#64748b;margin-bottom:8px;display:flex;gap:15px}.legal-footer{font-size:.75rem;margin-top:40px;padding:20px;background:#f1f5f9;border-radius:12px;color:#64748b}.lookup-btn{font-size:.75rem;font-weight:700;padding:8px 16px;border-radius:8px;transition:.2s}.info-card{background:#fff;border-radius:16px;padding:25px;border:1px solid var(--border-color);height:100%;transition:.3s}.info-card:hover{border-color:var(--brand-primary);transform:translateY(-5px)}.usa-rule-box{background:#fff7ed;border:1px solid #fdba74;border-left:5px solid #f97316;padding:20px;border-radius:12px;margin:20px 0}@media print{.btn-copy-icon,.btn-mode,.how-to-card,.lookup-section,.page-header,.unit-switcher,footer{display:none!important}.calc-wrapper{margin-top:0!important}.premium-card{box-shadow:none!important;border:none!important}}