/* Calculator-only layout. Shared navigation, typefaces and footer stay in site-brand.css. */
.mix-workspace-page .calculator{grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);background:var(--km-panel,#1d1e1d);border:1px solid var(--km-border,#3b3d3b);align-items:stretch}
.mix-workspace-page .mix-form{padding:30px;background:transparent}
.mix-workspace-page .mix-result{padding:30px;background:transparent;color:var(--km-paper,#f0f0e8);color-scheme:dark;border-left:1px solid var(--km-border,#3b3d3b);min-height:0}
.mix-workspace-page .result-heading{border-color:#ffffff24;padding-bottom:14px}
.mix-workspace-page .mix-result :is(.mini-title,.result-heading>span:last-child,.result-label,.result-note){color:var(--km-muted,#b9bab4)}
.mix-workspace-page .result-heading>span:last-child{font-size:11px}
.mix-workspace-page .result-label{font-size:15px;margin-top:18px}
.mix-workspace-page .oil-result{font-size:clamp(58px,6vw,80px);margin:0 0 8px;gap:10px;line-height:1.1;letter-spacing:-.04em}
.mix-workspace-page .oil-result>output,.mix-workspace-page .oil-result>span{color:var(--km-paper,#f0f0e8)}
.mix-workspace-page .oil-result>span{font-size:24px}
.mix-workspace-page .oil-result.result-medium{font-size:60px}
.mix-workspace-page .oil-result.result-long{font-size:45px}
.mix-workspace-page .ratio-line{padding:18px 0;margin-bottom:0;gap:0 22px}
.mix-workspace-page .ratio-line strong{font-size:42px}
.mix-workspace-page .ratio-line a{margin-top:8px}
.mix-workspace-page .petrol-group{margin-top:20px}
.mix-workspace-page .mix-form .amount-fields input{font-size:30px;min-height:58px}
.mix-workspace-page .quick-amounts{grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;margin-top:16px}
.mix-workspace-page .quick-amounts button{min-height:44px;padding:8px 3px;font-size:12px;white-space:nowrap}
.mix-workspace-page .quick-amounts button[aria-pressed=true]{background:var(--km-orange,#ff571c);color:var(--km-ink,#101110);border-color:var(--km-orange,#ff571c)}
.batch-slider{margin-top:24px}
.slider-heading,.slider-ends{display:flex;align-items:center;justify-content:space-between;gap:12px}
.slider-heading{font-size:13px;font-weight:600;line-height:1.4}
.slider-heading>span{font-variant-numeric:tabular-nums;white-space:nowrap;color:var(--km-paper,#f0f0e8)}
.mix-workspace-page .mix-form input[type=range]{appearance:none;-webkit-appearance:none;display:block;width:100%;height:44px;min-height:44px;margin:2px 0;padding:0;border:0;background:transparent;cursor:pointer;--slider-fill:15.789%}
.mix-workspace-page .mix-form input[type=range]::-webkit-slider-runnable-track{height:4px;border-radius:0;background:linear-gradient(to right,var(--km-orange,#ff571c) 0 var(--slider-fill),#666862 var(--slider-fill) 100%)}
.mix-workspace-page .mix-form input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;border:4px solid var(--km-panel,#1d1e1d);outline:1px solid var(--km-orange,#ff571c);border-radius:50%;background:var(--km-orange,#ff571c);margin-top:-10px}
.mix-workspace-page .mix-form input[type=range]::-moz-range-track{height:4px;background:#666862}
.mix-workspace-page .mix-form input[type=range]::-moz-range-progress{height:4px;background:var(--km-orange,#ff571c)}
.mix-workspace-page .mix-form input[type=range]::-moz-range-thumb{width:18px;height:18px;border:3px solid var(--km-panel,#1d1e1d);border-radius:50%;background:var(--km-orange,#ff571c);outline:1px solid var(--km-orange,#ff571c)}
.slider-ends{font-size:11px;color:var(--km-muted,#b9bab4);margin-top:-3px}
.batch-slider>.field-help{font-size:11px;margin-top:9px}
.mix-workspace-page .reset-link{margin-top:8px;padding-top:18px;border-top:1px solid #ffffff20}
.mix-stage{margin-top:14px}
.vessels{display:grid;grid-template-columns:minmax(0,1fr) 28px minmax(0,1fr);gap:8px;align-items:center}
.vessel{display:flex;flex-direction:column;align-items:center;min-width:0;transition:opacity .25s}
.vessel-title{display:flex;align-items:center;gap:8px;line-height:1.5;font-size:10px;font-weight:700;letter-spacing:.08em;white-space:nowrap}
.vessel-title>span{color:var(--km-orange,#ff571c);font-size:10px}
.jug-graphic{width:100%;max-width:220px;height:138px;overflow:visible}
.jug-outline{stroke:#cccfc6;stroke-linejoin:round}
.jug-ticks{stroke:#cccfc6;opacity:.7}.jug-sheen{stroke:#fff;opacity:.07}.jug-base{stroke:#ffffff20}
.jug-liquid{transition:y .4s ease,height .4s ease}
.petrol-liquid{fill:#c2c4b9;fill-opacity:.23}.oil-liquid{fill:var(--km-orange,#ff571c);fill-opacity:.6}
.vessel>strong{font-size:20px;font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums;color:var(--km-paper,#f0f0e8);text-align:center;overflow-wrap:anywhere;max-width:100%}
.vessel-scale{font-size:10px;line-height:1.5;color:var(--km-muted,#b9bab4);margin-top:5px;text-align:center}
.vessel-plus{color:var(--km-orange,#ff571c);font-size:25px;align-self:center;margin-top:10px;text-align:center}
.combined-batch{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid #ffffff20;padding-top:15px;margin-top:20px}
.combined-batch>div{display:flex;align-items:baseline;justify-content:space-between;flex:1;gap:15px}
.combined-batch .mini-title{font-size:10px}
.combined-batch strong{font-size:23px;font-weight:700;line-height:1.3;font-variant-numeric:tabular-nums;text-align:right;overflow-wrap:anywhere}
.combined-batch strong>span:last-child{font-size:14px;font-weight:500}
.batch-arrow{color:var(--km-orange,#ff571c);font-size:24px;line-height:1}
.composition-bar{display:flex;height:5px;gap:2px;margin-top:12px;overflow:hidden}
.composition-bar>span{transition:width .4s}
#petrol-share{background:#aaaDA3;width:90.909%}#oil-share{background:var(--km-orange,#ff571c);width:9.091%}
.composition-key{display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:10px;line-height:1.5;color:var(--km-muted,#b9bab4);margin:8px 0 12px}
.composition-key b{color:var(--km-paper,#f0f0e8);font-weight:500;margin-left:6px;font-variant-numeric:tabular-nums}
.mix-workspace-page .mix-summary{max-width:none;font-size:13px;line-height:1.6;font-weight:500;color:var(--km-paper,#f0f0e8)}
.mix-demonstration{padding:15px 0;border-bottom:1px solid #ffffff20}
.mix-walkthrough{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;list-style:none;margin:0 0 12px;padding:0}
.mix-walkthrough li{padding:10px 7px;background:#ffffff03;border:1px solid #ffffff25;font-size:11px;line-height:1.35;color:var(--km-paper,#f0f0e8)}
.mix-walkthrough li>span{display:block;font-size:9px;color:var(--km-orange,#ff571c);margin-bottom:3px}
.mix-walkthrough li.is-active{border-color:var(--km-orange,#ff571c);background:#ff571c0c}
#play-mix{display:inline-flex;align-items:center;gap:8px;color:var(--km-paper,#f0f0e8);font-size:12px;font-weight:600;background:transparent;border:0;padding:5px 0;min-height:36px}
#play-mix svg{color:var(--km-orange,#ff571c);flex-shrink:0}
#play-mix:hover{color:var(--km-orange,#ff571c)}
#mix-animation-note{color:var(--km-muted,#b9bab4);font-size:11px;line-height:1.5;margin-top:3px}
.mix-workspace-page .result-actions{margin-top:17px;gap:16px;flex-wrap:wrap}
.mix-workspace-page .result-actions button{background:var(--km-orange,#ff571c);color:var(--km-ink,#101110);font-size:12px;min-height:44px;padding:10px 14px}
.mix-workspace-page .result-actions button:hover{background:var(--km-paper,#f0f0e8);color:var(--km-ink,#101110)}
.mix-workspace-page .result-actions a{font-size:12px;color:var(--km-paper,#f0f0e8)}
.mix-workspace-page .result-note{font-size:10px;line-height:1.6;padding-top:15px;margin-top:auto}
.mix-workspace-page .empty-result{min-height:450px}
.mix-workspace-page .empty-result p{color:var(--km-muted,#b9bab4)}
.mix-stage[data-phase=petrol] .oil-vessel{opacity:.4}
.mix-stage[data-phase=petrol] .oil-liquid{height:0;y:180}
.mix-stage[data-phase=petrol] :is(.combined-batch,.composition-bar,.composition-key),.mix-stage[data-phase=oil] :is(.combined-batch,.composition-bar,.composition-key){opacity:.4}
.mix-stage :is(.combined-batch,.composition-bar,.composition-key){transition:opacity .3s}
.mix-stage[data-phase=combine] .jug-liquid{animation:mix-liquid .5s ease-in-out 2 alternate}
@keyframes mix-liquid{from{transform:translateY(0)}to{transform:translateY(-3px)}}
.mix-knowledge{padding:60px 0}
.mix-knowledge .section-heading{margin-bottom:30px}
.knowledge-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
.knowledge-card{grid-column:span 2;min-width:0;padding:25px 24px;border:1px solid var(--km-border,#3b3d3b);background:var(--km-panel,#1d1e1d)}
.knowledge-card>.mini-title,.knowledge-note .mini-title{font-size:10px;color:var(--km-muted,#b9bab4)}
.knowledge-card h3{font:700 22px/1.25 Barlow,Arial,sans-serif;color:var(--km-paper,#f0f0e8);margin:20px 0 12px;max-width:24ch}
.knowledge-card p:not(.mini-title){font-size:14px;line-height:1.7;color:var(--km-muted,#b9bab4)}
.knowledge-card p strong{font-weight:600;color:var(--km-paper,#f0f0e8)}
.ratio-diagram{display:flex;align-items:center;gap:20px;height:115px;padding:15px 0 0}
.ratio-diagram>div{display:flex;flex-direction:column;align-items:flex-start}
.ratio-diagram strong{font-size:58px;line-height:1;font-weight:700;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.ratio-diagram>div:last-child strong{color:var(--km-orange,#ff571c)}
.ratio-diagram span{font-size:12px;color:var(--km-muted,#b9bab4);margin-top:8px}
.ratio-diagram>b{font-size:32px;color:var(--km-orange,#ff571c);padding-bottom:25px;font-weight:500}
.ratio-comparison{padding:26px 0 0;height:115px}
.ratio-comparison>div{display:grid;grid-template-columns:34px minmax(20px,1fr) 62px;gap:12px;align-items:center;margin-bottom:10px;font-size:12px;line-height:1.4}
.ratio-comparison i{height:5px;background:#ffffff15;display:flex}
.ratio-comparison i b{width:50%;background:var(--km-orange,#ff571c)}
.ratio-comparison>div:nth-child(2) i b{width:100%}
.ratio-comparison strong{font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;text-align:right}
.ratio-comparison small{font-size:10px;color:var(--km-muted,#b9bab4);line-height:1.6;display:block}
.total-diagram{display:flex;align-items:center;gap:8px;height:115px;padding-top:15px;font-variant-numeric:tabular-nums}
.total-diagram strong{font-size:clamp(19px,2vw,27px);font-weight:700;letter-spacing:-.02em;white-space:nowrap}
.total-diagram>strong:last-child{color:var(--km-orange,#ff571c)}
.total-diagram>span{font-size:17px;color:var(--km-muted,#b9bab4)}
.knowledge-note{grid-column:span 3;display:flex;align-items:flex-start;gap:20px;padding:25px}
.knowledge-note>svg{width:38px;height:38px;flex-shrink:0;color:var(--km-orange,#ff571c)}
.knowledge-note h3{font-size:20px;max-width:none;margin:8px 0 10px}
@media(max-width:1050px){.mix-workspace-page .mix-form,.mix-workspace-page .mix-result{padding:25px}.vessels{gap:3px;grid-template-columns:minmax(0,1fr) 20px minmax(0,1fr)}.jug-graphic{height:120px}.vessel-title{font-size:9px;gap:5px}.knowledge-card{padding:22px 19px}.knowledge-card h3{font-size:20px}.total-diagram{gap:6px}.total-diagram strong{font-size:20px}}
@media(max-width:850px){.mix-workspace-page .calculator{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.mix-workspace-page .mix-form,.mix-workspace-page .mix-result{padding:22px}.mix-workspace-page .quick-amounts{grid-template-columns:repeat(3,minmax(0,1fr))}.mix-workspace-page .ratio-line a{grid-column:1/-1}.mix-workspace-page .ratio-line{grid-template-columns:auto 1fr}.mix-walkthrough li{font-size:10px;padding:8px 6px}.vessel-title{letter-spacing:.03em}.jug-graphic{height:105px}.vessel>strong{font-size:18px}.vessel-scale{font-size:9px}.combined-batch>div{display:block}.combined-batch strong{display:block;text-align:left;font-size:21px;margin-top:4px}.knowledge-card{grid-column:span 3}.knowledge-card:nth-child(3){grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.knowledge-card:nth-child(3) .mini-title{grid-column:1/-1}.knowledge-card:nth-child(3) h3{grid-column:2;grid-row:2;margin-bottom:12px}.knowledge-card:nth-child(3)>p:last-child{grid-column:2;grid-row:3}.knowledge-card:nth-child(3) .total-diagram{grid-column:1;grid-row:2/4;height:100%;min-height:85px}.knowledge-card:nth-child(3) .total-diagram strong{font-size:27px}.knowledge-note{display:block}.knowledge-note>svg{margin-bottom:15px}}
@media(max-width:680px){.mix-workspace-page .calculator{grid-template-columns:1fr}.mix-workspace-page .mix-result{border-left:0;border-top:1px solid var(--km-border,#3b3d3b)}.mix-workspace-page .quick-amounts{grid-template-columns:repeat(5,minmax(0,1fr))}.mix-workspace-page .mix-form,.mix-workspace-page .mix-result{padding:24px}.mix-workspace-page .oil-result{font-size:72px}.vessels{grid-template-columns:minmax(0,1fr) 28px minmax(0,1fr);gap:8px}.jug-graphic{height:145px}.vessel-title{font-size:10px;gap:7px;letter-spacing:.06em}.vessel>strong{font-size:21px}.vessel-scale{font-size:10px}.combined-batch>div{display:flex}.combined-batch strong{text-align:right;margin-top:0}.mix-walkthrough li{font-size:11px;padding:10px 8px}.mix-workspace-page .result-note{margin-top:15px;padding-top:0}.mix-workspace-page .empty-result{min-height:280px}.mix-knowledge{padding:42px 0}.knowledge-grid{gap:12px}.knowledge-card{padding:23px}.knowledge-card,.knowledge-card:nth-child(3){grid-column:1/-1;display:block}.knowledge-card:nth-child(3) .total-diagram{height:90px;min-height:0}.knowledge-card:nth-child(3) h3{margin-top:20px}.ratio-diagram,.ratio-comparison{height:105px}.knowledge-card h3{font-size:22px;max-width:none;margin-top:15px}.knowledge-card:nth-child(3) .total-diagram strong{font-size:30px}.knowledge-note{display:flex;gap:16px}.knowledge-note>svg{width:32px;height:32px;margin:0}.knowledge-note h3{font-size:20px;margin-top:8px}}
@media(max-width:380px){.mix-workspace-page .mix-form,.mix-workspace-page .mix-result{padding:20px 16px}.mix-workspace-page .quick-amounts{gap:4px}.mix-workspace-page .quick-amounts button{font-size:10px}.vessel-title{font-size:8px;gap:4px}.jug-graphic{height:115px}.vessel>strong{font-size:18px}.vessel-scale{font-size:9px}.mix-walkthrough li{font-size:10px;padding:9px 6px}.mix-workspace-page .oil-result.result-long{font-size:35px}.knowledge-card{padding:22px 19px}.knowledge-note{display:block}.knowledge-note>svg{margin-bottom:15px}.knowledge-card:nth-child(3) .total-diagram strong{font-size:27px}}
@media(prefers-reduced-motion:reduce){.mix-workspace-page :is(.jug-liquid,.composition-bar>span,.vessel,.mix-stage *){animation:none!important;transition:none!important}}
@media print{.mix-workspace-page .mix-result{background:white;color:#101110;border:0}.mix-workspace-page .mix-result *{color:#101110!important}.mix-demonstration,.vessels,.mix-knowledge,.composition-bar,.composition-key{display:none}.combined-batch{border-color:#aaa}.mix-workspace-page .result-note{color:#555!important}}