.action-bar{flex-wrap:wrap;gap:8px;margin:18px 0 20px;display:flex}.action-btn{color:var(--calc-text-primary);background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-md);cursor:pointer;align-items:center;gap:6px;padding:8px 14px;font-size:.85rem;font-weight:600;transition:border-color .15s,background .15s;display:inline-flex}.action-btn:hover{border-color:var(--calc-cyan);color:var(--calc-cyan)}.action-btn--reset:hover{color:#fb7185;border-color:#fb7185}.tab-bar{border-bottom:1px solid var(--calc-border-subtle);flex-wrap:wrap;gap:4px;margin-bottom:20px;display:flex}.tab-btn{color:var(--calc-text-dim);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;padding:10px 16px;font-size:.9rem}.tab-content{display:none}.tab-content.active{display:block}.card,.input-card,.result-card{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-lg);padding:20px 22px}.hero-result{text-align:left;margin-bottom:18px}.hero-label{text-transform:uppercase;letter-spacing:.05em;color:var(--calc-text-faded);margin-bottom:6px;font-size:.8rem;font-weight:600}.hero-value{font-family:var(--calc-font-mono);color:var(--calc-cyan);font-size:clamp(2rem,5vw,2.6rem);font-weight:700;line-height:1.1}.hero-sub{color:var(--calc-text-dim);margin-top:6px;font-size:.9rem}.stat-grid{border-top:1px solid var(--calc-border-subtle);grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px;padding-top:18px;display:grid}.stat-cell{text-align:left}.stat-val{font-family:var(--calc-font-mono);color:var(--calc-text-primary);font-size:1.15rem;font-weight:700}.stat-label{color:var(--calc-text-dim);margin-top:2px;font-size:.76rem}.table-scroll{overflow-x:auto}.data-table{border-collapse:collapse;width:100%;font-size:.88rem}.data-table th,.data-table td{text-align:left;border-bottom:1px solid var(--calc-border-subtle);padding:10px 12px}.data-table th{text-transform:uppercase;letter-spacing:.04em;color:var(--calc-text-faded);font-size:.76rem}.data-table td{color:var(--calc-text-primary);font-family:var(--calc-font-mono)}[data-theme=light] .action-btn{color:#0f172a;background:#fff;border-color:#00000026}[data-theme=light] .action-btn:hover{color:#0891b2;border-color:#0891b2}[data-theme=light] .tab-bar{border-bottom-color:#0000001a}[data-theme=light] .tab-btn{color:#64748b}[data-theme=light] .card,[data-theme=light] .input-card,[data-theme=light] .result-card{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .hero-label{color:#64748b}[data-theme=light] .hero-value{color:#0891b2}[data-theme=light] .hero-sub{color:#475569}[data-theme=light] .stat-grid{border-top-color:#00000014}[data-theme=light] .stat-val{color:#0f172a}[data-theme=light] .stat-label,[data-theme=light] .data-table th{color:#64748b}[data-theme=light] .data-table td{color:#0f172a}[data-theme=light] .data-table th,[data-theme=light] .data-table td{border-bottom-color:#00000014}.main-container{max-width:1400px;margin:0 auto;padding:40px 20px}.page-header{margin-bottom:20px}.page-title{font-family:var(--calc-font-headline);color:var(--calc-text-primary);letter-spacing:-.02em;margin:0 0 8px;font-size:clamp(1.7rem,3.5vw,2.4rem);font-weight:800}.page-subtitle{color:var(--calc-text-dim);max-width:72ch;margin:0;font-size:1rem;line-height:1.6}.calc-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);align-items:start;gap:24px;display:grid}@media (width<=1024px){.calc-grid{grid-template-columns:1fr}}.field-hint{color:var(--calc-text-dim);margin:6px 0 0;font-size:.78rem;line-height:1.5}.card-title+.field-hint{margin:-4px 0 14px}.form-label-static{color:var(--calc-text-faded);margin-bottom:7px;font-size:.82rem;font-weight:600;display:block}.readout{font-family:var(--calc-font-mono);color:var(--calc-cyan);margin-bottom:14px;padding:.5rem 0;font-size:1.1rem;font-weight:700}.interp-panel{border:1px solid #22d3ee38;border-left:3px solid var(--calc-cyan);border-radius:var(--calc-radius-md);background:#22d3ee0f;margin-top:14px;padding:14px 16px}.interp-text{color:var(--calc-text-faded);margin:0;font-size:.9rem;line-height:1.65}.table-note{color:var(--calc-text-dim);margin:4px 0 14px;font-size:.85rem;line-height:1.6}.data-table tr.row-top{background:#22d3ee1a;font-weight:600}.table-empty{text-align:center;color:var(--calc-text-dim);padding:18px 8px;font-size:.86rem}.gear-rows{gap:6px;margin-bottom:12px;display:grid}.preset-row{border-radius:var(--calc-radius-md);border:1px solid var(--calc-border-subtle);grid-template-columns:20px 1fr;align-items:center;gap:10px;padding:8px 10px;display:grid}.preset-row .gear-row-num{color:var(--calc-gold);text-align:center;font-size:.85rem}.preset-row-label{font-family:var(--calc-font-mono);color:var(--calc-text-primary);font-size:.92rem}.preset-row--nearest{border-color:var(--calc-cyan);background:#22d3ee1a}.preset-row--nearest .preset-row-label{color:var(--calc-cyan);font-weight:700}.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);flex-shrink:0;margin-left:16px;font-size:1.1rem}.faq-item[open] .faq-item__question:after{content:"−";color:var(--calc-cyan)}.faq-item__answer{color:var(--calc-text-dim);padding:0 4px 14px;font-size:.86rem;line-height:1.75}[data-theme=light] .page-subtitle{color:#475569}[data-theme=light] .field-hint{color:#64748b}[data-theme=light] .form-label-static{color:#334155}[data-theme=light] .readout{color:#0891b2}[data-theme=light] .interp-panel{background:#eff9fb;border-color:#0891b24d #0891b24d #0891b24d #0891b2}[data-theme=light] .interp-text{color:#334155}[data-theme=light] .table-note{color:#475569}[data-theme=light] .data-table tr.row-top{background:#0891b21f}[data-theme=light] .table-empty{color:#64748b}[data-theme=light] .preset-row{background:#fff;border-color:#0000001f}[data-theme=light] .preset-row-label{color:#0f172a}[data-theme=light] .preset-row .gear-row-num{color:#b45309}[data-theme=light] .preset-row--nearest{background:#0891b21a;border-color:#0891b2}[data-theme=light] .preset-row--nearest .preset-row-label{color:#0891b2}[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{color:#0891b2}[data-theme=light] .faq-item__answer{color:#475569}@media print{.action-bar,.tab-bar,.glass-navbar,.calc-back-to-top,.nav-toggle{display:none}}