.main-container{max-width:1100px;margin:0 auto;padding:1.5rem 1.5rem 3rem}.page-title{font-family:var(--calc-font-headline);color:var(--calc-text-primary);margin:0 0 .5rem;font-size:clamp(1.6rem,4vw,2.4rem)}.page-subtitle{color:var(--calc-text-faded);margin:0 0 1.5rem;line-height:1.5}.tab-nav{border-bottom:1px solid var(--calc-border-subtle);flex-wrap:wrap;gap:.25rem;margin:0 0 1.5rem;display:flex}.tab-btn{color:var(--calc-text-faded);font-family:var(--calc-font-headline);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;padding:.7rem 1.1rem;font-size:.9rem;transition:color .15s,border-color .15s}.tab-btn:hover{color:var(--calc-cyan)}.tab-btn.active{color:var(--calc-cyan);border-bottom-color:var(--calc-cyan)}.tab-content{display:none}.tab-content.active{display:block}.calc-layout{grid-template-columns:1fr;gap:1.25rem;display:grid}@media (width>=1024px){.calc-layout{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr)}.input-card{grid-area:1/1}.result-card{grid-area:1/2}}.input-card,.result-card,.card{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-lg);padding:1.25rem 1.5rem}.card-title{font-family:var(--calc-font-headline);text-transform:uppercase;letter-spacing:.05em;color:var(--calc-text-faded);margin:0 0 1rem;font-size:1rem}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.form-group{flex-direction:column;gap:.4rem;margin-bottom:.85rem;display:flex}.form-group label,.form-label-static{color:var(--calc-text-faded);font-size:.85rem}.form-group input,.form-group select{background:var(--calc-bg-input);border:1px solid var(--calc-border-strong);border-radius:var(--calc-radius-md);color:var(--calc-text-primary);font-family:var(--calc-font-mono);box-sizing:border-box;width:100%;padding:.6rem .8rem;font-size:.95rem;transition:border-color .15s}.form-group input:focus,.form-group select:focus{border-color:var(--calc-cyan);outline:none}.input-hint,.field-hint{color:var(--calc-text-dim);font-size:.8rem}.form-hint{color:var(--calc-text-dim);margin:.3rem 0 0;font-size:.8rem;line-height:1.5}.chip-row{flex-wrap:wrap;gap:.4rem;display:flex}.chip{background:var(--calc-bg-input);border:1px solid var(--calc-border-default);color:var(--calc-text-faded);cursor:pointer;border-radius:999px;padding:.35rem .85rem;font-size:.8rem;transition:border-color .15s,color .15s,background .15s}.chip:hover{color:var(--calc-cyan);border-color:var(--calc-cyan)}.chip.active{background:var(--calc-cyan);border-color:var(--calc-cyan);color:var(--calc-bg-page)}.hero-result{margin-bottom:.85rem}.hero-label{text-transform:uppercase;letter-spacing:.08em;color:var(--calc-text-dim);margin-bottom:.3rem;font-size:.7rem}.hero-value{font-family:var(--calc-font-mono);color:var(--calc-cyan);margin-bottom:.3rem;font-size:clamp(2rem,5.5vw,2.8rem);line-height:1.1}.hero-sub{color:var(--calc-text-faded);font-size:.9rem;line-height:1.5}.formula-strip{flex-wrap:wrap;gap:.4rem;margin-top:.85rem;display:flex}.formula-pill{background:var(--calc-bg-input);border:1px solid var(--calc-border-subtle);border-radius:var(--calc-radius-md);color:var(--calc-cyan);font-family:var(--calc-font-mono);padding:.3rem .6rem;font-size:.78rem}.result-interpretation{color:var(--calc-text-faded);margin-top:.85rem;font-size:.85rem;line-height:1.5}.chart-wrap{height:var(--chart-height,260px);position:relative}[data-theme=light] .input-card,[data-theme=light] .result-card,[data-theme=light] .card{border-color:var(--calc-border-default);box-shadow:var(--calc-shadow-sm)}[data-theme=light] .form-group input,[data-theme=light] .form-group select{background:var(--calc-bg-input);border-color:var(--calc-border-strong);color:var(--calc-text-primary)}[data-theme=light] .form-group input:focus,[data-theme=light] .form-group select:focus{border-color:var(--calc-cyan)}[data-theme=light] .hero-value{color:var(--calc-cyan)}[data-theme=light] .chip{background:var(--calc-bg-input);border-color:var(--calc-border-default);color:var(--calc-text-faded)}[data-theme=light] .chip:hover{color:var(--calc-cyan);border-color:var(--calc-cyan)}[data-theme=light] .chip.active{background:var(--calc-cyan);border-color:var(--calc-cyan);color:var(--calc-bg-page)}[data-theme=light] .formula-pill{background:var(--calc-bg-input);border-color:var(--calc-border-subtle);color:var(--calc-cyan)}[data-theme=light] .result-interpretation{color:var(--calc-text-faded)}[data-theme=light] .tab-nav{border-bottom-color:var(--calc-border-subtle)}[data-theme=light] .tab-btn{color:var(--calc-text-faded)}[data-theme=light] .tab-btn:hover{color:var(--calc-cyan)}[data-theme=light] .tab-btn.active{color:var(--calc-cyan);border-bottom-color:var(--calc-cyan)}