.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);max-width:60ch;margin:0 0 1.5rem;line-height:1.5}.tab-nav{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-lg);flex-wrap:wrap;gap:4px;width:fit-content;margin-bottom:1.5rem;padding:4px;display:flex}.tab-nav .tab-btn{border-radius:var(--calc-radius-md);color:var(--calc-text-faded);font-family:var(--calc-font-body,"Inter", sans-serif);cursor:pointer;white-space:nowrap;background:0 0;border:none;padding:.6rem 1.1rem;font-size:.9rem}.tab-nav .tab-btn:hover{color:var(--calc-text-primary)}.tab-nav .tab-btn.active{background:var(--calc-cyan);color:#07101f;border-bottom:none;font-weight:600}.tab-content{display:none}.tab-content.active{display:block}.calc-grid{grid-template-columns:minmax(0,380px) 1fr;align-items:start;gap:1.5rem;display:grid}@media (width<=1024px){.calc-grid{grid-template-columns:1fr}}.input-card,.result-card{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-lg);margin-bottom:1.25rem;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}.form-group{flex-direction:column;gap:.4rem;margin-bottom:1.1rem;display:flex}.form-group label{color:var(--calc-text-faded);font-size:.9rem}.input-well{background:var(--calc-bg-input);border:1px solid var(--calc-border-strong);border-radius:var(--calc-radius-md);align-items:center;gap:.35rem;padding:0 .85rem;display:flex}.input-well input{color:var(--calc-text-primary);font-family:var(--calc-font-mono);background:0 0;border:none;flex:1;min-width:0;padding:.65rem 0;font-size:1.05rem}.input-well input:focus{outline:none}.input-well .prefix,.input-well .suffix{color:var(--calc-text-dim);font-size:.9rem}.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-body,"Inter", sans-serif);padding:.65rem .85rem;font-size:.95rem}.input-hint{color:var(--calc-text-dim);font-size:.8rem}.action-bar{flex-wrap:wrap;gap:.5rem;margin-top:1.25rem;display:flex}.action-btn{background:var(--calc-bg-input);border:1px solid var(--calc-border-strong);border-radius:var(--calc-radius-md);color:var(--calc-text-primary);cursor:pointer;padding:.5rem .85rem;font-size:.85rem}.action-btn:hover{border-color:var(--calc-cyan)}.result-value{font-family:var(--calc-font-mono);color:var(--calc-cyan);margin-bottom:.3rem;font-size:clamp(2rem,5vw,3rem)}.result-detail{color:var(--calc-text-faded);margin-bottom:.6rem;line-height:1.6}.result-interpretation{color:var(--calc-text-primary);margin-bottom:.9rem;font-size:.9rem;font-weight:500}.formula-strip{flex-wrap:wrap;gap:.5rem;margin-top:.5rem;display:flex}.formula-pill{color:var(--calc-cyan);font-family:var(--calc-font-mono);background:#22d3ee1a;border-radius:999px;padding:.35rem .9rem;font-size:.85rem}.bond-status{border-radius:var(--calc-radius-md);background:var(--calc-bg-glass,#ffffff08);color:var(--calc-text-faded);border:1px solid var(--calc-border-default);margin-bottom:.9rem;padding:.9rem 1.1rem;font-size:.9rem;line-height:1.6}.bond-status--discount{color:var(--calc-emerald);background:#34d3991a;border-color:#34d39959}.bond-status--premium{color:var(--calc-amber);background:#f59e0b1a;border-color:#f59e0b59}.bond-status--par{color:var(--calc-sky);background:#60a5fa1a;border-color:#60a5fa59}[data-theme=light] .tab-nav{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .tab-nav .tab-btn.active{color:#fff;background:#0891b2}[data-theme=light] .input-card,[data-theme=light] .result-card{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .input-well,[data-theme=light] .form-group select,[data-theme=light] .action-btn{background:#f0f4f9;border-color:#00000026}[data-theme=light] .result-value{color:#0891b2}[data-theme=light] .formula-pill{color:#0e7490;background:#eff9fb}[data-theme=light] .bond-status{background:#f0f4f9;border-color:#0000001f}[data-theme=light] .bond-status--discount{color:#047857;background:#f0fdf4;border-color:#04785759}[data-theme=light] .bond-status--premium{color:#b45309;background:#fffbeb;border-color:#b4530959}[data-theme=light] .bond-status--par{color:#2563eb;background:#eff6ff;border-color:#2563eb59}.faq-list{flex-direction:column;display:flex}.faq-item{border-bottom:1px solid #ffffff0f}.faq-item__question{cursor:pointer;color:var(--calc-text-primary);user-select:none;justify-content:space-between;align-items:center;padding:14px 4px;font-size:.9rem;font-weight:600;list-style:none;transition:color .2s;display:flex}.faq-item__question::-webkit-details-marker{display:none}.faq-item__question:after{content:"+";font-family:var(--calc-font-mono);color:var(--calc-text-dim);flex-shrink:0;margin-left:16px;font-size:1.1rem;transition:color .2s}.faq-item[open] .faq-item__question:after{content:"−";color:var(--calc-cyan)}.faq-item__question:hover{color:var(--calc-cyan)}.faq-item__answer{color:var(--calc-text-faded);padding:0 4px 14px;font-size:.85rem;line-height:1.75}[data-theme=light] .faq-list{gap:8px}[data-theme=light] .faq-item{background:#fff;border:1px solid #0000001a;border-radius:10px;transition:box-shadow .2s,border-color .2s;overflow:hidden;box-shadow:0 1px 4px #0000000f}[data-theme=light] .faq-item:hover{border-color:#0e749059;box-shadow:0 2px 10px #0e749014}[data-theme=light] .faq-item[open]{border-color:#0e749066 #0e749066 #0e749066 #0e7490;border-left-style:solid;border-left-width:3px;box-shadow:0 2px 12px #0e74901a}[data-theme=light] .faq-item__question{color:#0f172a;padding:14px 16px}[data-theme=light] .faq-item__question:after{color:#64748b}[data-theme=light] .faq-item[open] .faq-item__question:after,[data-theme=light] .faq-item__question:hover{color:#0e7490}[data-theme=light] .faq-item__answer{color:#475569;border-top:1px solid #0000000f;padding:12px 16px 16px}