.calc-hero{padding:clamp(3rem,8vw,6rem) 0 clamp(2rem,5vw,3.5rem);text-align:center;background:linear-gradient(160deg,var(--bg-hero-gradient-start) 0%,var(--bg-hero-gradient-end) 100%);border-bottom:1px solid var(--border)}.calc-hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;line-height:1.18;letter-spacing:-.03em;margin:0 auto 1rem;max-width:780px;color:var(--text-primary)}.calc-hero-sub{font-size:clamp(1rem,2vw,1.15rem);color:var(--text-secondary);max-width:560px;margin:0 auto;line-height:1.65}.calculator-tool{padding:clamp(2.5rem,6vw,4.5rem) 0}.calc-layout{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}@media (max-width:860px){.calc-layout{grid-template-columns:1fr}}.calc-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:clamp(1.5rem,4vw,2.25rem);box-shadow:0 4px 24px rgba(15,23,42,.06)}.calc-card-header{margin-bottom:1.5rem;border-bottom:1px solid var(--border);padding-bottom:1rem}.calc-card-title{font-size:1.25rem;font-weight:700;margin:0 0 .25rem;color:var(--text-primary)}.calc-card-subtitle{font-size:.875rem;color:var(--text-secondary);margin:0}.unit-toggle{display:flex;background:var(--bg-secondary-section);border-radius:var(--radius-full);padding:4px;gap:4px;margin-bottom:1.5rem;width:fit-content}.unit-btn{padding:.45rem 1.1rem;font-size:.82rem;font-weight:600;border:none;border-radius:var(--radius-full);background:0 0;color:var(--text-secondary);cursor:pointer;transition:all .22s ease;white-space:nowrap}.unit-btn.active{background:var(--bg-card);color:var(--primary);box-shadow:0 2px 8px rgba(15,23,42,.1)}.unit-btn:hover:not(.active){color:var(--text-primary)}.calc-inputs{display:flex;flex-direction:column;gap:1.1rem;margin-bottom:1.5rem}.input-group{display:flex;flex-direction:column;gap:.35rem}.input-group.hidden{display:none}.input-label{font-size:.875rem;font-weight:600;color:var(--text-dark);display:flex;align-items:center;gap:.4rem}.input-hint{font-size:.78rem;font-weight:400;color:var(--text-secondary)}.input-wrapper{position:relative;display:flex;align-items:center}.input-wrapper input,.input-wrapper select{width:100%;padding:.65rem 3rem .65rem 1rem;border:1.5px solid var(--input-border);border-radius:10px;background:var(--input-bg);color:var(--input-text);font-size:.95rem;transition:border-color .2s ease,box-shadow .2s ease;appearance:none;-webkit-appearance:none}.input-wrapper input:focus,.input-wrapper select:focus{outline:0;border-color:var(--input-border-focus);box-shadow:0 0 0 3px rgba(99,102,241,.15)}.input-wrapper input.input-error-state,.input-wrapper select.input-error-state{border-color:#ef4444;box-shadow:0 0 0 3px rgba(239,68,68,.12)}.input-unit-label{position:absolute;right:.85rem;font-size:.8rem;font-weight:600;color:var(--text-secondary);pointer-events:none;user-select:none}.select-wrapper{position:relative}.select-arrow{position:absolute;right:.85rem;font-size:.85rem;color:var(--text-secondary);pointer-events:none}.input-error{font-size:.78rem;color:#ef4444;min-height:1rem;font-weight:500}.imperial-height-row{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}.calc-actions{display:flex;gap:.75rem;flex-wrap:wrap}.calc-btn-calculate{flex:1;justify-content:center;min-width:160px;font-size:.95rem;padding:.8rem 1.5rem}.calc-btn-clear{padding:.8rem 1.3rem;font-size:.9rem}.calc-result-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:clamp(1.5rem,4vw,2.25rem);box-shadow:0 4px 24px rgba(15,23,42,.06);min-height:320px;display:flex;flex-direction:column;justify-content:center}.result-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;text-align:center;color:var(--text-secondary);padding:2rem 0}.result-empty-icon{width:56px;height:56px;background:var(--bg-secondary-section);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-secondary)}.result-empty p{font-size:.9rem;margin:0;max-width:200px}.hidden{display:none!important}.result-bmi-display{text-align:center;margin-bottom:1.5rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border)}.result-label{display:block;font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-secondary);margin-bottom:.25rem}.result-value{display:block;font-size:clamp(3rem,8vw,4.5rem);font-weight:800;line-height:1;letter-spacing:-.04em;color:var(--primary);margin-bottom:.5rem;transition:color .3s ease}.result-value.cat-underweight{color:#3b82f6}.result-value.cat-normal{color:#22c55e}.result-value.cat-overweight{color:#f59e0b}.result-value.cat-obese{color:#ef4444}.result-category{display:inline-block;padding:.3rem .9rem;border-radius:var(--radius-full);font-size:.82rem;font-weight:700;letter-spacing:.04em;background:var(--primary-light);color:var(--primary);transition:background .3s ease,color .3s ease}.result-category.cat-underweight{background:#dbeafe;color:#1d4ed8}.result-category.cat-normal{background:#dcfce7;color:#16a34a}.result-category.cat-overweight{background:#fef3c7;color:#b45309}.result-category.cat-obese{background:#fee2e2;color:#dc2626}.bmi-gauge{margin:0 0 1.25rem}.gauge-track{display:flex;height:10px;border-radius:var(--radius-full);overflow:hidden;gap:2px}.gauge-segment{flex:1;border-radius:3px;transition:opacity .3s ease}.seg-underweight{background:#93c5fd;flex:2}.seg-normal{background:#86efac;flex:3}.seg-overweight{background:#fcd34d;flex:2}.seg-obese{background:#fca5a5;flex:3}.gauge-needle-wrap{position:relative;height:18px}.gauge-needle{position:absolute;top:2px;width:3px;height:14px;background:var(--text-primary);border-radius:2px;transform:translateX(-50%);left:0%;transition:left .6s cubic-bezier(.34,1.56,.64,1)}.gauge-needle::after{content:"";position:absolute;bottom:-4px;left:50%;transform:translateX(-50%);width:7px;height:7px;background:var(--text-primary);border-radius:50%}.gauge-labels{display:flex;justify-content:space-between;font-size:.65rem;color:var(--text-secondary);font-weight:600;padding:0 2px;margin-top:2px}.result-healthy-range{display:flex;align-items:center;gap:.5rem;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;padding:.6rem .9rem;font-size:.83rem;font-weight:600;color:#16a34a;margin-bottom:1rem}.result-stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:1rem}.result-stat{background:var(--bg-secondary-section);border-radius:10px;padding:.75rem 1rem;display:flex;flex-direction:column;gap:.2rem}.stat-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-secondary)}.stat-value{font-size:1.15rem;font-weight:800;color:var(--text-primary)}.result-disclaimer{font-size:.75rem;color:var(--text-secondary);line-height:1.5;margin:0;padding-top:.75rem;border-top:1px solid var(--border);font-style:italic}.bmi-scale-section{padding:clamp(3rem,6vw,5rem) 0;background:var(--bg-secondary-section);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.section-heading{font-size:clamp(1.5rem,3.5vw,2.25rem);font-weight:800;text-align:center;color:var(--text-primary);margin:0 0 .75rem;letter-spacing:-.025em}.section-subheading{text-align:center;color:var(--text-secondary);max-width:560px;margin:0 auto 2.5rem;font-size:1rem;line-height:1.6}.bmi-scale-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}@media (max-width:860px){.bmi-scale-grid{grid-template-columns:1fr 1fr}}@media (max-width:480px){.bmi-scale-grid{grid-template-columns:1fr}}.bmi-scale-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;text-align:center;transition:transform .22s ease,box-shadow .22s ease}.bmi-scale-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(15,23,42,.1)}.bmi-scale-card h3{font-size:1rem;font-weight:700;margin:.5rem 0 .25rem;color:var(--text-primary)}.bmi-scale-card p{font-size:.875rem;color:var(--text-secondary);margin:0;line-height:1.55}.scale-icon{font-size:1.75rem;margin-bottom:.25rem}.scale-range{display:inline-block;font-size:.8rem!important;font-weight:700!important;padding:.2rem .7rem;border-radius:var(--radius-full);margin-bottom:.5rem!important}.scale-underweight .scale-range{background:#dbeafe;color:#1d4ed8}.scale-normal .scale-range{background:#dcfce7;color:#16a34a}.scale-overweight .scale-range{background:#fef3c7;color:#b45309}.scale-obese .scale-range{background:#fee2e2;color:#dc2626}.scale-underweight{border-left:4px solid #93c5fd}.scale-normal{border-left:4px solid #86efac}.scale-overweight{border-left:4px solid #fcd34d}.scale-obese{border-left:4px solid #fca5a5}.calc-info{padding:clamp(3rem,6vw,5rem) 0}.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem 3rem}@media (max-width:700px){.info-grid{grid-template-columns:1fr;gap:2rem}}.info-article h2{font-size:1.2rem;font-weight:700;margin:0 0 .75rem;color:var(--text-primary);letter-spacing:-.01em}.info-article p{font-size:.93rem;color:var(--text-secondary);line-height:1.7;margin:0 0 .75rem}.info-article p:last-child{margin-bottom:0}.formula-block{background:var(--bg-secondary-section);border-left:4px solid var(--primary);border-radius:0 8px 8px 0;padding:.8rem 1.1rem;margin:.75rem 0}.formula-text{font-family:Courier New,Courier,monospace;font-size:.92rem;font-weight:700;color:var(--text-dark)}.info-steps{padding-left:1.2rem;margin:.5rem 0 0}.info-steps li{font-size:.93rem;color:var(--text-secondary);line-height:1.65;margin-bottom:.5rem}.info-steps li strong{color:var(--text-primary)}.faq-section{padding:clamp(3rem,6vw,5rem) 0 clamp(4rem,8vw,7rem);background:var(--bg-secondary-section);border-top:1px solid var(--border)}@keyframes resultFadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.result-content.animate-in{animation:resultFadeUp .35s ease forwards}@media print{.calc-actions,.unit-toggle,.faq-section{display:none}.calc-layout{grid-template-columns:1fr}}