:root{--color-bg:#ffffff;--color-bg-subtle:#fafafa;--color-text-primary:#222221;--color-text-secondary:#898683;--color-button-bg:#160F0C;--color-button-text:#ffffff;--color-accent:#2563eb;--color-success:#059669;--color-warning:#d97706;--font-family:"Outfit",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*,:after,:before{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-bg);color:var(--color-text-primary);line-height:1.5;min-height:100vh}.calculator-container{max-width:680px;margin:0 auto;padding:2rem;min-height:100vh;display:flex;flex-direction:column}.calc-header{margin-bottom:3rem}.back-link{display:inline-block;font-size:.9375rem;color:var(--color-text-secondary);text-decoration:none;margin-bottom:2rem;transition:color .2s ease}.back-link:hover{color:var(--color-text-primary)}.calc-title{font-size:2.5rem;font-weight:400;letter-spacing:-.03em;margin-bottom:.5rem}.calc-subtitle{font-size:1.125rem;color:var(--color-text-secondary)}.terminology-help{margin-top:1.5rem}.help-toggle{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;font-size:.875rem;font-family:inherit;color:var(--color-text-secondary);background:var(--color-bg-subtle);border:1px solid #e5e5e5;border-radius:999px;cursor:pointer;transition:all .2s ease}.help-toggle:hover{color:var(--color-text-primary);border-color:var(--color-text-secondary)}.help-icon{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;font-size:.75rem;font-weight:600;color:var(--color-button-text);background:var(--color-button-bg);border-radius:50%}.help-content{display:none;margin-top:1rem;padding:1.25rem;background:var(--color-bg-subtle);border-radius:12px;animation:fadeIn .2s ease-out}.help-content.show{display:block}.term{margin-bottom:1rem}.term:last-child{margin-bottom:0}.term strong{font-size:.9375rem;color:var(--color-text-primary)}.term p{font-size:.875rem;color:var(--color-text-secondary);margin:.25rem 0 0;line-height:1.4}.calc-main{flex:1}.calc-form{position:relative}.calc-step{display:none;animation:fadeIn .3s ease-out}.calc-step.active{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.step-indicator{font-size:.875rem;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:1rem}.step-question{font-size:1.5rem;font-weight:500;letter-spacing:-.02em;margin-bottom:.75rem;line-height:1.3}.step-hint{font-size:1rem;color:var(--color-text-secondary);margin-bottom:2rem}.input-group{position:relative;margin-bottom:2rem}.input-group input[type=number]{width:100%;padding:1rem 4rem 1rem 1.25rem;font-size:1.25rem;font-family:inherit;border:2px solid #e5e5e5;border-radius:12px;background:var(--color-bg);transition:border-color .2s ease,box-shadow .2s ease}.input-group input[type=number]:focus{outline:none;border-color:var(--color-button-bg);box-shadow:0 0 0 4px rgba(22,15,12,.1)}.input-group input[type=number]::placeholder{color:#c4c4c4}.input-suffix{position:absolute;right:1.25rem;top:50%;transform:translateY(-50%);color:var(--color-text-secondary);font-size:1rem}input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield}.option-group{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}.option-card{display:flex;align-items:flex-start;padding:1.25rem;background:var(--color-bg-subtle);border:2px solid transparent;border-radius:12px;cursor:pointer;transition:all .2s ease}.option-card:hover{background:#f0f0f0}.option-card input[type=radio]{margin-top:.25rem;margin-right:1rem;width:20px;height:20px;accent-color:var(--color-button-bg)}.option-card:has(input:checked){border-color:var(--color-button-bg);background:var(--color-bg)}.option-content{display:flex;flex-direction:column}.option-title{font-size:1.125rem;font-weight:500;margin-bottom:.25rem}.option-desc{font-size:.9375rem;color:var(--color-text-secondary)}.btn-group{display:flex;gap:1rem}.btn-back,.btn-next,.btn-restart{padding:1rem 2rem;font-size:1rem;font-weight:500;font-family:inherit;border:none;border-radius:999px;cursor:pointer;transition:all .2s ease}.btn-next{background:var(--color-button-bg);color:var(--color-button-text);flex:1}.btn-next:hover{transform:translateY(-2px);opacity:.9}.btn-back{background:transparent;color:var(--color-text-secondary);border:2px solid #e5e5e5}.btn-back:hover{border-color:var(--color-text-secondary);color:var(--color-text-primary)}.additional-questions{margin-bottom:2rem}.question-block{margin-bottom:1.5rem}.question-block label{display:block;font-size:1rem;font-weight:500;margin-bottom:.75rem}.rnor-question{margin-bottom:1.5rem}.rnor-label{font-size:1rem;font-weight:500;margin-bottom:.75rem}.result-container{animation:fadeIn .4s ease-out}.result-container.hidden{display:none}.result-card{background:var(--color-bg-subtle);border-radius:20px;padding:2.5rem;text-align:center}.result-status{margin-bottom:1.5rem}.status-badge{display:inline-block;padding:.5rem 1.25rem;font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;border-radius:999px}.status-badge.nri{background:#dbeafe;color:#1e40af}.status-badge.ror{background:#dcfce7;color:#166534}.status-badge.rnor{background:#fef3c7;color:#92400e}.result-title{font-size:1.75rem;font-weight:500;letter-spacing:-.02em;margin-bottom:1rem}.result-description{font-size:1.0625rem;color:var(--color-text-secondary);max-width:480px;margin:0 auto 2rem;line-height:1.6}.result-details{text-align:left;background:var(--color-bg);border-radius:12px;padding:1.5rem;margin-bottom:2rem}.result-details h3{font-size:1rem;font-weight:600;margin-bottom:1rem;color:var(--color-text-primary)}.result-details ul{list-style:none}.result-details li{padding:.5rem 0 .5rem 1.5rem;position:relative;font-size:.9375rem;color:var(--color-text-secondary)}.result-details li:before{content:"→";position:absolute;left:0;color:var(--color-text-primary)}.btn-restart{background:var(--color-button-bg);color:var(--color-button-text)}.btn-restart:hover{transform:translateY(-2px);opacity:.9}.calc-footer{margin-top:3rem;padding-top:2rem;border-top:1px solid #e5e5e5}.disclaimer{font-size:.875rem;color:var(--color-text-secondary);text-align:center}@media (max-width:640px){.calculator-container{padding:1.5rem}.calc-title{font-size:2rem}.step-question{font-size:1.25rem}.result-card{padding:1.5rem}.btn-group{flex-direction:column-reverse}.btn-back{text-align:center}}