body{background:var(--calc-bg-page);color:var(--calc-text-primary);min-height:100vh}.main-container{max-width:1400px;margin:0 auto;padding:40px 20px}.page-header{margin-bottom:20px}.page-title{font-family:var(--calc-font-headline);letter-spacing:-.02em;background:linear-gradient(135deg, var(--calc-color-automotive), var(--calc-purple));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;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}.action-bar{margin:16px 0 20px}.tab-bar{border-bottom:2px solid var(--calc-border-default);scrollbar-width:none;gap:4px;margin:4px 0 16px;display:flex;overflow-x:auto}.tab-bar::-webkit-scrollbar{display:none}.tab-btn{cursor:pointer;color:var(--calc-text-dim);white-space:nowrap;background:0 0;border:none;padding:10px 18px;font-size:.88rem}.tab-btn.active{color:var(--calc-color-automotive)}.tab-btn:hover{color:var(--calc-text-primary)}.shared-controls{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-lg);margin-bottom:20px;padding:16px 24px}.shared-controls-row{flex-wrap:wrap;gap:16px;display:flex}.shared-controls-row .form-group{flex:180px;min-width:180px}.shared-controls .field-hint{margin:12px 0 0}.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}}.card{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-lg);margin-bottom:20px;padding:20px 24px}.card-title{font-family:var(--calc-font-headline);text-transform:uppercase;letter-spacing:.05em;color:var(--calc-text-faded);margin:0 0 14px;font-size:.85rem}.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-group{flex-direction:column;gap:.4rem;margin-bottom:14px;display:flex}.form-group label{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);padding:.65rem .85rem;font-size:1.05rem;transition:border-color .15s}.form-group input:focus,.form-group select:focus{border-color:var(--calc-color-automotive);outline:none}.batch-rows{flex-direction:column;gap:8px;margin-bottom:12px;display:flex}.batch-row{align-items:center;gap:10px;display:flex}.row-index{font-family:var(--calc-font-mono);color:var(--calc-text-faded);text-align:right;min-width:1.4rem;font-size:.78rem}.row-fuel-input{background:var(--calc-bg-input);border:1px solid var(--calc-border-strong);border-radius:var(--calc-radius-md);min-width:0;color:var(--calc-text-primary);font-family:var(--calc-font-mono);flex:auto;padding:.55rem .75rem;font-size:1rem}.row-fuel-input:focus{border-color:var(--calc-color-automotive);outline:none}.row-unit{color:var(--calc-text-dim);min-width:2.2rem;font-size:.8rem}.row-remove-btn{border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-md);color:var(--calc-text-dim);cursor:pointer;background:0 0;flex-shrink:0;width:2rem;height:2rem;line-height:1;transition:border-color .15s,color .15s}.row-remove-btn:hover:not(:disabled){border-color:var(--calc-rose);color:var(--calc-rose)}.row-remove-btn:disabled{opacity:.35;cursor:not-allowed}.add-row-btn{border:1px dashed var(--calc-border-strong);border-radius:var(--calc-radius-md);color:var(--calc-color-automotive);cursor:pointer;background:0 0;width:100%;padding:8px 14px;font-size:.85rem;font-weight:600;transition:border-color .15s,background .15s}.add-row-btn:hover:not(:disabled){background:#38bdf814}.add-row-btn:disabled{opacity:.4;cursor:not-allowed}.hero-result{text-align:left;margin-bottom:18px}.hero-label{color:var(--calc-text-faded);margin-bottom:6px;font-size:.85rem}.hero-value{font-family:var(--calc-font-mono);color:var(--calc-color-automotive);font-size:clamp(2rem,5vw,2.8rem);font-weight:700;line-height:1.1}.hero-sub{color:var(--calc-text-faded);margin-top:6px;line-height:1.5}.stat-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin:8px 0 4px;display:grid}.stat-cell{border:1px solid var(--calc-border-default);text-align:center;background:#ffffff08;border-radius:8px;padding:12px}.stat-val{font-family:var(--calc-font-mono);color:var(--calc-text-primary);margin-bottom:4px;font-size:1.05rem;font-weight:700}.stat-label{color:var(--calc-text-dim);font-size:.7rem;line-height:1.3}.interp-panel{border:1px solid #38bdf838;border-left:3px solid var(--calc-color-automotive);border-radius:var(--calc-radius-md);background:#38bdf80f;margin-top:14px;padding:14px 16px}.interp-text{color:var(--calc-text-faded);margin:0;font-size:.9rem;line-height:1.65}.table-scroll{overflow-x:auto}.data-table{border-collapse:collapse;width:100%}.data-table th,.data-table td{text-align:left;border-bottom:1px solid var(--calc-border-default);padding:10px 12px;font-size:.85rem}.data-table th{color:var(--calc-text-faded);text-transform:uppercase;letter-spacing:.04em;font-size:.72rem;font-weight:600}.data-table td{font-family:var(--calc-font-mono);color:var(--calc-text-primary)}.data-table tfoot td{color:var(--calc-color-automotive);border-top:2px solid var(--calc-border-strong);border-bottom:none;font-weight:700}.preset-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;display:grid}.preset-card{border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-md);background:#ffffff08;flex-direction:column;gap:4px;padding:14px 16px;display:flex}.preset-card-ratio{font-family:var(--calc-font-mono);color:var(--calc-color-automotive);font-size:1.3rem;font-weight:700}.preset-card-name{color:var(--calc-text-primary);font-size:.95rem;font-weight:600}.preset-card-note{color:var(--calc-text-dim);flex-grow:1;margin:2px 0 10px;font-size:.78rem;line-height:1.5}.preset-card-btn{border:1px solid var(--calc-color-automotive);border-radius:var(--calc-radius-md);color:var(--calc-color-automotive);cursor:pointer;background:0 0;padding:8px 12px;font-size:.8rem;font-weight:600;transition:background .15s,color .15s}.preset-card-btn:hover{background:var(--calc-color-automotive);color:#0a0e1a}@media print{.action-bar,.tab-bar,.glass-navbar,.calc-back-to-top,.nav-toggle,.row-remove-btn,.add-row-btn{display:none}}[data-theme=light] .page-subtitle{color:#475569}[data-theme=light] .field-hint{color:#64748b}[data-theme=light] .card,[data-theme=light] .shared-controls{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .card-title{color:#64748b}[data-theme=light] .form-group label{color:#334155}[data-theme=light] .form-group input,[data-theme=light] .form-group select,[data-theme=light] .row-fuel-input{color:#0f172a;background:#f0f4f9;border-color:#00000026}[data-theme=light] .form-group input:focus,[data-theme=light] .form-group select:focus,[data-theme=light] .row-fuel-input:focus{border-color:#0369a1}[data-theme=light] .row-index,[data-theme=light] .row-unit{color:#64748b}[data-theme=light] .row-remove-btn{color:#64748b;border-color:#00000026}[data-theme=light] .row-remove-btn:hover:not(:disabled){color:#e11d48;border-color:#e11d48}[data-theme=light] .add-row-btn{color:#0369a1;border-color:#0369a159}[data-theme=light] .add-row-btn:hover:not(:disabled){background:#0369a10f}[data-theme=light] .page-title{background:linear-gradient(135deg,#0369a1,#7c3aed);-webkit-background-clip:text;background-clip:text}[data-theme=light] .tab-bar{border-bottom-color:#0000001f}[data-theme=light] .tab-btn{color:#475569}[data-theme=light] .tab-btn.active{color:#0369a1}[data-theme=light] .hero-label{color:#475569}[data-theme=light] .hero-value{color:#0369a1}[data-theme=light] .hero-sub{color:#475569}[data-theme=light] .stat-cell{background:#f0f4f9;border-color:#0000001f}[data-theme=light] .stat-val{color:#0f172a}[data-theme=light] .stat-label{color:#64748b}[data-theme=light] .interp-panel{background:#eff9fb;border-color:#0369a14d #0369a14d #0369a14d #0369a1}[data-theme=light] .interp-text{color:#334155}[data-theme=light] .data-table th{color:#64748b}[data-theme=light] .data-table th,[data-theme=light] .data-table td{border-bottom-color:#00000014}[data-theme=light] .data-table td{color:#0f172a}[data-theme=light] .data-table tfoot td{color:#0369a1;border-top-color:#0003}[data-theme=light] .preset-card{background:#f0f4f9;border-color:#0000001f}[data-theme=light] .preset-card-ratio{color:#0369a1}[data-theme=light] .preset-card-name{color:#0f172a}[data-theme=light] .preset-card-note{color:#475569}[data-theme=light] .preset-card-btn{color:#0369a1;border-color:#0369a1}[data-theme=light] .preset-card-btn:hover{color:#fff;background:#0369a1}