.ios-navigation{position:fixed;bottom:0;left:0;right:0;background:rgba(255,255,255,.88);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-top:1px solid #f1f5f9;z-index:1000;padding-bottom:env(safe-area-inset-bottom)}.theme-toggle{position:fixed;top:12px;right:12px;z-index:900;width:36px;height:36px;border:1px solid #e2e8f0;border-radius:10px;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;line-height:1;transition:all .15s ease;-webkit-tap-highlight-color:transparent;padding:0}.theme-toggle:hover{background:#f1f5f9;border-color:#cbd5e1}.theme-toggle:active{transform:scale(.92)}[data-theme=dark] .theme-toggle{background:rgba(30,41,59,.85);border-color:#334155}[data-theme=dark] .theme-toggle:hover{background:#334155;border-color:#475569}.support-toggle{position:fixed;top:12px;left:12px;z-index:900;width:36px;height:36px;border:1px solid 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ease;position:relative;min-height:50px;-webkit-tap-highlight-color:transparent}.ios-nav-link:hover{color:#5b7cf7}.ios-nav-link:active{transform:scale(.95)}.ios-nav-link-active{color:#5b7cf7;font-weight:600}.ios-nav-icon{font-size:1.375rem;margin-bottom:3px;display:block;transition:transform .15s ease}.ios-nav-link-active .ios-nav-icon{transform:scale(1.05)}.ios-nav-text{font-size:.625rem;text-align:center;line-height:1.2;font-weight:500;letter-spacing:.02em}.ios-nav-link-active .ios-nav-text{font-weight:600}.ios-nav-indicator{position:absolute;top:0;left:50%;transform:translate(-50%);width:20px;height:2px;background:#5b7cf7;border-radius:1px;animation:iosIndicator .25s ease-out}@keyframes iosIndicator{0%{opacity:0;transform:translate(-50%) scaleX(0)}to{opacity:1;transform:translate(-50%) scaleX(1)}}@media (max-width: 768px){.ios-nav-container{padding:0 2px}.ios-nav-link{padding:7px 2px 9px}.ios-nav-icon{font-size:1.25rem;margin-bottom:2px}.ios-nav-text{font-size:.6rem}}@media (max-width: 480px){.ios-nav-link{padding:6px 1px 8px}.ios-nav-icon{font-size:1.125rem;margin-bottom:2px}.ios-nav-text{font-size:.5625rem}}[data-theme=dark] .ios-navigation{background:rgba(15,23,42,.92);border-top:1px solid rgba(255,255,255,.06)}[data-theme=dark] .ios-nav-link{color:#475569}[data-theme=dark] .ios-nav-link:hover,[data-theme=dark] .ios-nav-link-active{color:#a5b4fc}[data-theme=dark] .ios-nav-indicator{background:#a5b4fc}.support-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1100;background:rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center;padding:1rem;animation:support-overlay-in .18s ease-out}@keyframes support-overlay-in{0%{opacity:0}to{opacity:1}}.support-modal{position:relative;background:#ffffff;border-radius:20px;padding:2.25rem 1.75rem 1.75rem;max-width:340px;width:100%;display:flex;flex-direction:column;align-items:center;gap:.5rem;border:1px solid #f1f5f9;box-shadow:0 24px 48px #00000014;animation:support-modal-in .25s 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14px;font-size:.875rem}.info-disclaimer{padding:14px}.info-features li{font-size:.8125rem}}@media (max-width: 480px){.calcplus-header{padding:1.5rem 1rem 1.25rem}.calcplus-title{font-size:1.375rem}.calcplus-subtitle{font-size:.6875rem}.info-link{padding:11px 12px;font-size:.8125rem}}@media (min-width: 600px){.calcplus-result-card{max-width:560px}.calcplus-section{max-width:520px}.calcplus-results-section{max-width:560px}}@media (min-width: 1024px){.calcplus-result-card{max-width:560px}.calcplus-section{max-width:520px}.calcplus-results-section{max-width:560px}}.calcplus-wide .calcplus-main{max-width:1120px;width:100%;margin-left:auto;margin-right:auto}@media (min-width: 600px){.calcplus-wide .calcplus-section,.calcplus-wide .calcplus-results-section,.calcplus-wide .calcplus-result-card{max-width:100%}}@media (min-width: 1024px){.calcplus-wide .calcplus-section{max-width:720px}.calcplus-wide .calcplus-results-section,.calcplus-wide .calcplus-result-card{max-width:100%}}[data-theme=dark] 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