:root{--accent:var(--calc-indigo);--accent-dim:#818cf826}[data-theme=light]{--accent:#4f46e5;--accent-dim:#4f46e51a}.main-container{max-width:1400px;margin:0 auto;padding:40px 20px}.page-title{font-family:var(--calc-font-headline);color:var(--calc-text-primary);margin:0 0 .5rem;font-size:clamp(1.7rem,4vw,2.5rem)}.page-subtitle{color:var(--calc-text-faded);max-width:72ch;margin:0 0 1.5rem;line-height:1.6}.page-subtitle .nowrap{white-space:nowrap}.action-bar{flex-wrap:wrap;gap:.5rem;margin:0 0 1.25rem;display:flex}.action-btn{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-md);color:var(--calc-text-primary);font-family:var(--calc-font-mono);cursor:pointer;padding:.5rem .85rem;font-size:.85rem;transition:border-color .15s,background .15s,color .15s}.action-btn:hover{border-color:var(--accent);color:var(--accent)}.action-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.action-btn--reset{margin-left:auto}.tab-bar{border-bottom:1px solid var(--calc-border-default);flex-wrap:wrap;gap:.4rem;margin-bottom:1.5rem;display:flex}.tab-btn{border-radius:var(--calc-radius-md) var(--calc-radius-md) 0 0;color:var(--calc-text-faded);font-family:var(--calc-font-headline);cursor:pointer;background:0 0;border:1px solid #0000;border-bottom:none;padding:.7rem 1.1rem;font-size:.95rem;font-weight:600;transition:color .15s,background .15s}.tab-btn:hover{color:var(--calc-text-primary)}.tab-btn.active{color:var(--accent);background:var(--calc-bg-card);border-color:var(--calc-border-default);border-bottom:2px solid var(--accent);margin-bottom:-1px}.tab-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.tab-panel{display:none}.tab-panel.active{display:block}.calc-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);align-items:start;gap:1.25rem;display:grid}.output-col{flex-direction:column;gap:1.25rem;min-width:0;display:flex}.input-card,.result-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}.form-group{flex-direction:column;gap:.4rem;margin-bottom:1rem;display:flex}.form-group label{color:var(--calc-text-faded);font-size:.9rem}.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);width:100%;padding:.65rem .85rem;font-size:1.05rem;transition:border-color .15s}.form-group select{font-family:var(--calc-font-headline)}.form-group input:focus,.form-group select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim);outline:none}.input-hint{color:var(--calc-text-dim);margin:-.25rem 0 0;font-size:.8rem;line-height:1.5}.preset-block{margin-top:.5rem}.preset-label{color:var(--calc-text-faded);margin-bottom:.5rem;font-size:.82rem;display:block}.preset-sub{color:var(--calc-text-dim);font-weight:400}.preset-chips{flex-wrap:wrap;gap:.4rem;display:flex}.preset-chip{background:var(--calc-bg-input);border:1px solid var(--calc-border-strong);color:var(--calc-text-primary);font-family:var(--calc-font-mono);cursor:pointer;border-radius:999px;padding:.35rem .75rem;font-size:.82rem;transition:border-color .15s,color .15s,background .15s}.preset-chip:hover{border-color:var(--accent);color:var(--accent)}.preset-chip.active{background:var(--accent);border-color:var(--accent);color:#fff}.preset-chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.result-value{font-family:var(--calc-font-mono);color:var(--accent);word-break:break-word;margin-bottom:.3rem;font-size:clamp(1.7rem,4.5vw,2.5rem);line-height:1.15}.result-value--partial,.result-value--idle{color:var(--calc-text-dim)}.result-detail{color:var(--calc-text-faded);margin-bottom:1rem;line-height:1.5}.stat-grid{grid-template-columns:1fr;gap:.6rem;margin:1rem 0;display:grid}.stat-cell{background:var(--calc-bg-glass,#ffffff08);border:1px solid var(--calc-border-subtle);border-radius:var(--calc-radius-md);flex-direction:column;gap:.25rem;min-width:0;padding:.6rem .75rem;display:flex}.stat-label{text-transform:uppercase;letter-spacing:.04em;color:var(--calc-text-dim);font-size:.72rem}.stat-value{font-family:var(--calc-font-mono);color:var(--calc-text-primary);word-break:break-word;font-size:1.05rem}.interpretation{color:var(--calc-text-faded);border-top:1px solid var(--calc-border-subtle);margin:.5rem 0 0;padding-top:.85rem;font-size:.92rem;line-height:1.6}.interpretation:empty{display:none}@media (width<=1024px){.calc-grid{grid-template-columns:1fr}}@media (width<=480px){.action-btn--reset{margin-left:0}.tab-btn{padding:.6rem .7rem;font-size:.85rem}}[data-theme=light] .action-btn{color:#0f172a;background:#fff;border-color:#0000001f}[data-theme=light] .action-btn:hover{border-color:var(--accent);color:var(--accent)}[data-theme=light] .tab-btn{color:#475569}[data-theme=light] .tab-btn:hover{color:#0f172a}[data-theme=light] .tab-btn.active{color:var(--accent);border-color:#0000001f;border-bottom:2px solid var(--accent);background:#fff}[data-theme=light] .input-card,[data-theme=light] .result-card{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .form-group input,[data-theme=light] .form-group select{color:#0f172a;background:#f0f4f9;border-color:#00000026}[data-theme=light] .form-group input:focus,[data-theme=light] .form-group select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim)}[data-theme=light] .preset-chip{color:#0f172a;background:#f0f4f9;border-color:#00000026}[data-theme=light] .preset-chip:hover{border-color:var(--accent);color:var(--accent)}[data-theme=light] .preset-chip.active{background:var(--accent);border-color:var(--accent);color:#fff}[data-theme=light] .result-value{color:var(--accent)}[data-theme=light] .result-value--partial,[data-theme=light] .result-value--idle{color:#64748b}[data-theme=light] .result-detail,[data-theme=light] .interpretation{color:#475569}[data-theme=light] .interpretation{border-top-color:#00000014}[data-theme=light] .stat-cell{background:#f0f4f9;border-color:#0000001a}[data-theme=light] .stat-label{color:#64748b}[data-theme=light] .stat-value{color:#0f172a}.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:.92rem;font-weight:600;list-style:none;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);margin-left:16px;font-size:1.1rem}.faq-item[open] .faq-item__question:after{content:"−";color:var(--accent)}.faq-item__question:hover{color:var(--accent)}.faq-item__answer{color:var(--calc-text-faded);padding:0 4px 14px;font-size:.88rem;line-height:1.75}[data-theme=light] .faq-item__question{color:#0f172a}[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:var(--accent)}[data-theme=light] .faq-item__answer{color:#475569}