@font-face{font-family:IBM Plex Sans Condensed;font-style:normal;font-display:swap;font-weight:400;src:url(/karman-wind-tunnel/assets/ibm-plex-sans-condensed-latin-400-normal-DKyD6XsY.woff2)format("woff2"),url(/karman-wind-tunnel/assets/ibm-plex-sans-condensed-latin-400-normal-5i361Byk.woff)format("woff")}@font-face{font-family:IBM Plex Sans Condensed;font-style:normal;font-display:swap;font-weight:500;src:url(/karman-wind-tunnel/assets/ibm-plex-sans-condensed-latin-500-normal-BqaLkUoX.woff2)format("woff2"),url(/karman-wind-tunnel/assets/ibm-plex-sans-condensed-latin-500-normal-BLe87hIu.woff)format("woff")}@font-face{font-family:IBM Plex Sans Condensed;font-style:normal;font-display:swap;font-weight:600;src:url(/karman-wind-tunnel/assets/ibm-plex-sans-condensed-latin-600-normal-CRd5VyFf.woff2)format("woff2"),url(/karman-wind-tunnel/assets/ibm-plex-sans-condensed-latin-600-normal-6XnkKYvF.woff)format("woff")}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/karman-wind-tunnel/assets/ibm-plex-mono-latin-400-normal-DMJ8VG8y.woff2)format("woff2"),url(/karman-wind-tunnel/assets/ibm-plex-mono-latin-400-normal-CvHOgSBP.woff)format("woff")}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:500;src:url(/karman-wind-tunnel/assets/ibm-plex-mono-latin-500-normal-DSY6xOcd.woff2)format("woff2"),url(/karman-wind-tunnel/assets/ibm-plex-mono-latin-500-normal-CB9ihrfo.woff)format("woff")}:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0b0c0e;--panel:#101215;--panel-2:#14171b;--raise:#1a1d22;--raise-2:#22262c;--line:#24282e;--line-2:#30353c;--text:#ece7de;--text-2:#aba69d;--text-3:#8d887f;--smoke:#f2ede4;--signal:#ff4d2e;--signal-soft:#ff4d2e29;--focus:#f2ede4;--warn:#e7c06a;--sans:"IBM Plex Sans Condensed", "Arial Narrow", system-ui, sans-serif;--mono:"IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;--rail-w:368px;--radius:10px;--radius-sm:7px;--t:.17s cubic-bezier(.2, .7, .2, 1);--dock-h:0px}*,:before,:after{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);font-family:var(--sans);-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;margin:0;font-size:14px;line-height:1.4}button,input,select{font:inherit;color:inherit}a{color:var(--text);text-underline-offset:3px;text-decoration-color:#ece7de59}a:hover{-webkit-text-decoration-color:var(--text);text-decoration-color:var(--text)}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}[hidden]{display:none!important}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;overflow:hidden;position:absolute!important}.label{letter-spacing:.09em;text-transform:uppercase;color:var(--text-2);font-size:11px;font-weight:500}.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}.app{height:100vh;grid-template-columns:minmax(0, 1fr) var(--rail-w);grid-template-rows:auto auto minmax(0,1fr);grid-template-areas:"tunnel masthead""tunnel measure""tunnel controls";height:100dvh;display:grid;overflow:hidden}.tunnel{background:var(--bg);touch-action:none;grid-area:tunnel;min-width:0;min-height:0;position:relative;overflow:hidden}.tunnel:focus-visible{outline-offset:-3px}.tunnel canvas{width:100%;height:100%;display:block;position:absolute;inset:0}.tunnel .overlay{cursor:crosshair}.app[data-tool=draw] .tunnel .overlay{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='26' height='26' viewBox='0 0 26 26'%3E%3Cpath d='M17.5 3.5l5 5-9.6 9.6-5-5z' fill='%23f2ede4' stroke='%230b0c0e' stroke-width='1.2'/%3E%3Cpath d='M7.6 13.4l5 5c-1.4 2.9-4.6 4.8-9.6 4.6.6-4.6 1.9-7.9 4.6-9.6z' fill='%23f2ede4' stroke='%230b0c0e' stroke-width='1.2'/%3E%3C/svg%3E") 3 23,crosshair}.app[data-tool=erase] .tunnel .overlay{cursor:cell}.app[data-tool=move] .tunnel .overlay{cursor:default}.app[data-tool=move] .tunnel .overlay.over-body{cursor:grab}.app[data-tool=move] .tunnel .overlay.dragging{cursor:grabbing}.app[data-tool=move] .tunnel .overlay.over-handle{cursor:alias}.masthead{background:var(--panel);border-left:1px solid var(--line);flex-wrap:wrap;grid-area:masthead;justify-content:space-between;align-items:baseline;gap:4px 16px;padding:16px 20px 12px;display:flex}.masthead .back-link,.masthead .source-link{color:var(--text-2);min-height:24px;padding:6px 0;font-size:12px;text-decoration:none}.masthead .back-link:hover,.masthead .source-link:hover{color:var(--text)}.title-block{flex:1 0 100%;order:3;align-items:baseline;gap:10px;margin-top:2px;display:flex}h1{letter-spacing:.16em;text-transform:uppercase;margin:0;font-size:30px;font-weight:600;line-height:1}h1 .subtitle{letter-spacing:.02em;text-transform:none;color:var(--text-2);margin-top:7px;font-size:13px;font-weight:400;display:block}.engine-badge{font-family:var(--mono);color:var(--text-2);border:1px solid var(--line-2);white-space:nowrap;border-radius:999px;align-self:flex-start;margin-left:auto;padding:3px 9px;font-size:11px}.engine-badge[data-kind=cpu]{color:var(--warn);border-color:#e7c06a59}.measure{background:var(--panel);border-left:1px solid var(--line);border-top:1px solid var(--line);grid-area:measure;padding:14px 20px}.controls{background:var(--panel);border-left:1px solid var(--line);border-top:1px solid var(--line);scrollbar-width:thin;scrollbar-color:var(--line-2) transparent;grid-area:controls;min-height:0;padding:4px 20px 24px;overflow-y:auto}.controls .drawer-head{display:none}.section{border-bottom:1px solid var(--line);padding:14px 0 16px}.section:last-child{border-bottom:0}.section-title{justify-content:space-between;align-items:center;margin:0 0 10px;display:flex}.dock,.dock-transport{display:none}.time-readout{font-family:var(--mono);color:var(--text-3);white-space:nowrap;font-size:11px}.measure-head{justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;display:flex}.measure-head h2{margin:0}.measure-head .measure-pick{align-items:center;gap:8px;min-width:0;display:flex}.select{appearance:none;background:var(--raise) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23aba69d' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 10px center;border:1px solid var(--line-2);border-radius:var(--radius-sm);max-width:190px;min-height:32px;color:var(--text);text-overflow:ellipsis;cursor:pointer;transition:border-color var(--t), background-color var(--t);padding:4px 28px 4px 10px;font-size:13px}.select:hover{border-color:#454b53}.select:disabled{opacity:.5;cursor:not-allowed}.readouts{grid-template-columns:1.2fr 1fr 1fr;gap:8px;margin-bottom:10px;display:grid}.readout{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-sm);min-width:0;padding:8px 10px 9px}.readout .label{align-items:baseline;gap:5px;font-size:10px;display:flex}.readout .value{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--text);white-space:nowrap;margin-top:3px;font-size:22px;font-weight:500;line-height:1.1;display:block}.readout .sub{color:var(--text-3);white-space:nowrap;text-overflow:ellipsis;margin-top:2px;font-size:11px;display:block;overflow:hidden}.readout.is-primary .value:before{content:"";background:var(--signal);border-radius:50%;width:7px;height:7px;margin:0 6px 3px 0;display:inline-block}.chart-wrap{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel-2);height:156px;position:relative;overflow:hidden}.chart-wrap canvas{width:100%;height:100%;display:block}.chart-empty{text-align:center;color:var(--text-3);place-items:center;padding:16px;font-size:12px;display:grid;position:absolute;inset:0}.chart-legend{color:var(--text-2);flex-wrap:wrap;gap:4px 14px;margin-top:8px;font-size:11px;display:flex}.chart-legend .key{align-items:center;gap:6px;display:inline-flex}.chart-legend .swatch{border-top:2px solid var(--signal);width:18px;height:0}.chart-legend .swatch.dashed{opacity:.75;border-top-style:dashed}.chart-legend .swatch.dotted{border-top:2px dotted var(--text-2)}.measure-note{color:var(--text-3);margin:8px 0 0;font-size:11.5px}.segmented{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);grid-auto-columns:1fr;grid-auto-flow:column;gap:2px;padding:3px;display:grid}.segmented input{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}.segmented label{border-radius:var(--radius-sm);min-height:52px;color:var(--text-2);cursor:pointer;-webkit-user-select:none;user-select:none;transition:background-color var(--t), color var(--t);flex-direction:column;justify-content:center;align-items:center;gap:3px;padding:6px 4px;font-size:12px;display:flex}.segmented label svg{width:20px;height:20px}.segmented label:hover{color:var(--text);background:var(--raise)}.segmented input:checked+label{color:var(--bg);background:var(--smoke)}.segmented input:focus-visible+label{outline:2px solid var(--focus);outline-offset:2px}.segmented input:disabled+label{opacity:.4;cursor:not-allowed}.field{grid-template-columns:1fr auto;align-items:baseline;gap:2px 10px;margin-top:12px;display:grid}.field label{color:var(--text-2);font-size:12.5px}.field output{font-family:var(--mono);color:var(--text);white-space:nowrap;font-size:12px}.field input[type=range]{grid-column:1/-1}.field .hint-text{color:var(--text-3);grid-column:1/-1;font-size:11.5px}.field .hint-text.warn{color:var(--warn)}input[type=range]{appearance:none;cursor:pointer;background:0 0;width:100%;height:28px;margin:0}input[type=range]::-webkit-slider-runnable-track{background:linear-gradient(90deg, var(--text-2) 0 var(--fill,50%), var(--line-2) var(--fill,50%) 100%);border-radius:2px;height:3px}input[type=range]::-moz-range-track{background:var(--line-2);border-radius:2px;height:3px}input[type=range]::-moz-range-progress{background:var(--text-2);border-radius:2px;height:3px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--smoke);border:3px solid var(--panel);width:18px;height:18px;box-shadow:0 0 0 1px var(--line-2);border-radius:50%;margin-top:-7.5px}input[type=range]::-moz-range-thumb{background:var(--smoke);border:3px solid var(--panel);width:14px;height:14px;box-shadow:0 0 0 1px var(--line-2);border-radius:50%}input[type=range]:focus-visible{outline:none}input[type=range]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 2px var(--panel), 0 0 0 4px var(--focus)}input[type=range]:focus-visible::-moz-range-thumb{box-shadow:0 0 0 2px var(--panel), 0 0 0 4px var(--focus)}input[type=range]:disabled{opacity:.4;cursor:not-allowed}.btn{background:var(--raise);border:1px solid var(--line-2);border-radius:var(--radius-sm);min-height:40px;color:var(--text);cursor:pointer;-webkit-user-select:none;user-select:none;transition:background-color var(--t), border-color var(--t), transform var(--t);justify-content:center;align-items:center;gap:7px;padding:8px 14px;font-size:13px;font-weight:500;display:inline-flex}.btn svg{flex:none;width:18px;height:18px}.btn:hover{background:var(--raise-2);border-color:#454b53}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}.btn.primary{background:var(--smoke);border-color:var(--smoke);color:var(--bg)}.btn.primary:hover{background:#fffaf1}.btn.ghost{color:var(--text-2);background:0 0;border-color:#0000}.btn.ghost:hover{color:var(--text);background:var(--raise)}.btn.danger:hover{border-color:#6b4a44}.btn.icon-only{min-width:40px;padding:8px}.btn-row{flex-wrap:wrap;gap:8px;display:flex}.preset-grid{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.preset{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-sm);min-height:60px;color:var(--text-2);text-align:center;cursor:pointer;transition:background-color var(--t), border-color var(--t), color var(--t);flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:8px 2px 6px;font-size:11.5px;line-height:1.15;display:flex}.preset svg{width:30px;height:20px;color:var(--text)}.preset:hover{background:var(--raise);border-color:var(--line-2);color:var(--text)}.preset:active{background:var(--raise-2)}.check{min-height:32px;color:var(--text-2);cursor:pointer;align-items:center;gap:8px;margin-top:10px;font-size:12.5px;display:flex}.check input{width:16px;height:16px;accent-color:var(--smoke);margin:0}.inspector{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);margin-top:12px;padding:12px 12px 10px}.inspector[hidden]{display:none}.inspector-head{justify-content:space-between;align-items:center;gap:8px;display:flex}.inspector-head strong{font-size:14px;font-weight:600}.inspector-head .mono{color:var(--text-3);font-size:11px}.inspector .field:first-of-type{margin-top:6px}.inspector .actions{justify-content:space-between;align-items:center;gap:8px;margin-top:10px;display:flex}.inspector .kbd-hint{color:var(--text-3);font-size:11px}.re-panel{border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg, #f2ede409, #f2ede400) var(--panel-2);margin-top:14px;padding:12px 12px 11px}.re-panel .re-line{justify-content:space-between;align-items:baseline;gap:10px;display:flex}.re-panel .re-value{font-family:var(--mono);font-size:26px;font-weight:500;line-height:1.05}.re-panel .re-meta{font-family:var(--mono);color:var(--text-3);text-align:right;font-size:11px}.re-panel p{color:var(--text-2);margin:8px 0 0;font-size:12.5px}.transport-row{grid-template-columns:1.4fr 1fr 1fr;gap:8px;margin-top:14px;display:grid}.rail-foot{grid-template-columns:1fr 1fr;gap:8px;display:grid}.kbd{border:1px solid var(--line-2);min-width:18px;font-family:var(--mono);text-align:center;color:var(--text-2);border-bottom-width:2px;border-radius:4px;padding:0 4px;font-size:10.5px;line-height:16px;display:inline-block}.hud{z-index:4;border-radius:var(--radius);-webkit-backdrop-filter:blur(6px);background:#0b0c0edb;border:1px solid #30353cd9;align-items:stretch;display:flex;position:absolute;bottom:16px;left:16px;overflow:hidden}.hud-cell{border-right:1px solid #30353cd9;min-width:78px;padding:7px 12px 8px}.hud-cell:last-child{border-right:0}.hud-cell .label{font-size:10px}.hud-cell .value{font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:17px;font-weight:500;line-height:1.25;display:block}.hud-cell.signal .value{color:#ff6a4f}.hud-cell .value.dim{color:var(--text-3)}.transport{z-index:4;gap:6px;display:flex;position:absolute;bottom:16px;right:16px}.transport .btn{-webkit-backdrop-filter:blur(6px);background:#0b0c0edb;border-color:#30353cd9;min-width:44px;min-height:44px}.transport .btn:hover{background:#22262ce6}.view-switch{z-index:4;align-items:flex-start;gap:8px;display:flex;position:absolute;top:16px;right:16px}.view-switch .segmented{-webkit-backdrop-filter:blur(6px);background:#0b0c0edb;border-color:#30353cd9}.view-switch .segmented label{flex-direction:row;gap:6px;min-width:74px;min-height:36px;padding:4px 10px}.view-switch .segmented label .num{font-family:var(--mono);opacity:.6;font-size:10px}.toggle{border-radius:var(--radius);-webkit-backdrop-filter:blur(6px);min-height:44px;color:var(--text-2);cursor:pointer;-webkit-user-select:none;user-select:none;background:#0b0c0edb;border:1px solid #30353cd9;align-items:center;gap:8px;padding:4px 12px 4px 8px;font-size:12px;display:inline-flex}.toggle input{opacity:0;width:1px;height:1px;position:absolute}.toggle .switch{background:var(--line-2);width:30px;height:18px;transition:background-color var(--t);border-radius:999px;position:relative}.toggle .switch:after{content:"";background:var(--text-2);width:12px;height:12px;transition:transform var(--t), background-color var(--t);border-radius:50%;position:absolute;top:3px;left:3px}.toggle input:checked+.switch{background:var(--smoke)}.toggle input:checked+.switch:after{background:var(--bg);transform:translate(12px)}.toggle input:checked~.toggle-text{color:var(--text)}.toggle input:focus-visible+.switch{outline:2px solid var(--focus);outline-offset:3px}.legend{z-index:3;border-radius:var(--radius-sm);-webkit-backdrop-filter:blur(6px);background:#0b0c0edb;border:1px solid #30353cd9;width:196px;padding:7px 10px 8px;position:absolute;bottom:72px;right:16px}.legend .label{justify-content:space-between;font-size:10px;display:flex}.legend .bar{border-radius:2px;height:8px;margin:6px 0 4px}.legend .ticks{font-family:var(--mono);color:var(--text-2);justify-content:space-between;font-size:10px;display:flex}.legend .smoke-key{color:var(--text-2);margin:0;font-size:11px}.hint-chip{z-index:5;color:var(--bg);pointer-events:none;white-space:nowrap;background:#f2ede4f2;border-radius:999px;align-items:center;gap:9px;padding:8px 14px 8px 10px;font-size:13px;font-weight:500;transition:opacity .2s,transform .2s;display:inline-flex;position:absolute;bottom:22px;left:50%;transform:translate(-50%);box-shadow:0 8px 28px #00000073}.hint-chip svg{width:18px;height:18px}.hint-chip.is-hidden{opacity:0;transform:translate(-50%,6px)}.banner{z-index:6;border-radius:var(--radius);max-width:min(520px,100% - 480px);color:var(--text);background:#14171bf0;border:1px solid #e7c06a59;align-items:flex-start;gap:10px;padding:10px 10px 10px 14px;font-size:12.5px;display:flex;position:absolute;top:16px;left:16px;box-shadow:0 10px 30px #0006}.banner[hidden]{display:none}.banner .banner-icon{width:18px;height:18px;color:var(--warn);flex:none;margin-top:1px}.banner p{margin:0}.banner .btn{min-height:32px;padding:4px 10px}.center-card{z-index:5;pointer-events:none;place-items:center;padding:24px;display:grid;position:absolute;inset:0}.center-card[hidden]{display:none}.center-card .card-body{pointer-events:none;text-align:center;border:1px solid var(--line-2);-webkit-backdrop-filter:blur(8px);background:#101215e6;border-radius:14px;max-width:380px;padding:18px 20px 16px;box-shadow:0 16px 40px #00000073}.center-card h2{margin:0 0 6px;font-size:16px;font-weight:600}.center-card p{color:var(--text-2);margin:0 0 12px;font-size:13px}.center-card .btn-row{justify-content:center}.center-card .btn{pointer-events:auto}.loader{z-index:7;background:var(--bg);place-items:center;transition:opacity .26s;display:grid;position:absolute;inset:0}.loader.is-translucent{background:#0b0c0e40}.loader.is-done{opacity:0;pointer-events:none}.loader-card{border:1px solid var(--line-2);background:#101215eb;border-radius:12px;width:min(340px,100% - 48px);padding:16px 18px}.loader-card .label{justify-content:space-between;display:flex}.loader-stage{margin:6px 0 10px;font-size:14px}.progress{background:var(--line-2);border-radius:2px;height:3px;overflow:hidden}.progress span{background:var(--smoke);width:0;height:100%;transition:width .2s linear;display:block}.run-cta{z-index:6;min-height:52px;padding:12px 22px;font-size:15px;position:absolute;top:50%;left:50%;translate:-50% -50%;box-shadow:0 12px 34px #00000080}.run-cta[hidden]{display:none}.probe-tip{z-index:6;border:1px solid var(--line-2);border-radius:var(--radius-sm);font-family:var(--mono);color:var(--text);white-space:nowrap;pointer-events:none;background:#0b0c0ee6;padding:6px 9px;font-size:11.5px;line-height:1.45;position:absolute}.probe-tip[hidden]{display:none}.probe-tip .k{color:var(--text-2)}.toasts{z-index:8;pointer-events:none;gap:8px;width:min(460px,100% - 32px);display:grid;position:absolute;top:72px;left:50%;transform:translate(-50%)}.toast{border:1px solid var(--line-2);border-radius:var(--radius);pointer-events:auto;background:#14171bf5;align-items:center;gap:10px;padding:10px 12px 10px 14px;font-size:13px;animation:.18s toast-in;display:flex;box-shadow:0 10px 30px #00000073}.toast.warn{border-color:#e7c06a66}.toast p{flex:1;margin:0}.toast .btn{flex:none;min-height:34px;padding:4px 10px}@keyframes toast-in{0%{opacity:0;transform:translateY(6px)}}.bench{z-index:2;pointer-events:none;grid-template-rows:auto 1fr;display:grid;position:absolute;inset:0}.bench[hidden]{display:none}.bench-title{pointer-events:auto;padding:18px 20px 0}.bench-title h2{letter-spacing:.01em;margin:0;font-size:18px;font-weight:600}.bench-title p{color:var(--text-2);margin:4px 0 0;font-size:12.5px}.bench-results{border:1px solid var(--line-2);pointer-events:auto;background:#101215eb;border-radius:12px;align-self:end;margin:0 20px 20px;padding:14px 16px;overflow-x:auto}.bench-status{color:var(--text-2);justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:8px;font-size:12.5px;display:flex}.bench-status strong{color:var(--text);font-weight:500}.bench table{border-collapse:collapse;width:100%;font-size:13px}.bench th{letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);text-align:right;border-bottom:1px solid var(--line-2);padding:6px 8px;font-size:10.5px;font-weight:500}.bench th:first-child,.bench td:first-child{text-align:left}.bench td{text-align:right;border-bottom:1px solid var(--line);font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap;padding:7px 8px}.bench td:first-child{font-family:var(--sans);white-space:normal}.bench td.measured{color:#ff6a4f}.bench td.ok:after{content:" ✓";color:var(--text-2)}.bench .bench-note{color:var(--text-3);margin:10px 0 0;font-size:12px}.bench-controls[hidden],.open-controls[hidden]{display:none}.how{width:min(860px,100vw - 32px);max-height:calc(100dvh - 48px);color:var(--text);background:var(--panel);border:1px solid var(--line-2);border-radius:14px;padding:0;box-shadow:0 30px 80px #0009}.how::backdrop{background:#050607b8}.how-head{z-index:1;background:var(--panel);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;display:flex;position:sticky;top:0}.how-head h2{margin:0;font-size:18px;font-weight:600}.how-body{color:#ddd8cf;padding:8px 24px 28px;font-size:14.5px;line-height:1.6}.how-body h3{letter-spacing:.1em;text-transform:uppercase;color:var(--text);margin:26px 0 8px;font-size:12px;font-weight:600}.how-body p,.how-body li{max-width:68ch}.how-body .eq{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-sm);margin:10px 0;padding:10px 14px;overflow-x:auto}.how-body table{border-collapse:collapse;width:100%;margin:8px 0;font-size:12.5px}.how-body th,.how-body td{border-bottom:1px solid var(--line);text-align:right;font-variant-numeric:tabular-nums;padding:5px 6px}.how-body th{color:var(--text-2);font-weight:500}.how-body th:first-child,.how-body td:first-child{text-align:left}.how-body .table-wrap{overflow-x:auto}.how-body .skeleton{background:linear-gradient(90deg, var(--raise), var(--raise-2), var(--raise));background-size:200% 100%;border-radius:4px;height:12px;margin:10px 0;animation:1.2s linear infinite shimmer}@keyframes shimmer{to{background-position:-200% 0}}.how-body figure{margin:12px 0}.how-body figcaption{color:var(--text-3);font-size:12px}.how-body code{font-family:var(--mono);font-size:12.5px}.kbd-list{grid-template-columns:max-content 1fr;gap:6px 14px;margin:8px 0;display:grid}@media (max-width:1099px){:root{--rail-w:1fr}.app{grid-template:"masthead masthead""tunnel tunnel""measure controls"/minmax(0,1fr) minmax(0,1fr);height:auto;min-height:100dvh;overflow:visible}.masthead{border-left:0;border-bottom:1px solid var(--line);padding:10px 20px 12px}h1{font-size:24px}.tunnel{height:min(62vh,62vw)}.measure,.controls{border-top:0;overflow:visible}.measure{border-left:0}}@media (max-width:699px){:root{--dock-h:68px}body{font-size:15px}.app{padding-bottom:calc(var(--dock-h) + env(safe-area-inset-bottom));grid-template:"masthead""tunnel""hud""measure"/minmax(0,1fr)}.masthead{padding:10px 16px}.masthead .back-link,.masthead .source-link{font-size:12px}.masthead .back-link{flex:auto}h1{font-size:21px}h1 .subtitle{letter-spacing:.01em;margin:0 0 0 8px;font-size:12.5px;display:inline}.engine-badge{align-self:center}.tunnel{aspect-ratio:3/2;height:auto}.hud{-webkit-backdrop-filter:none;background:var(--panel-2);border-color:var(--line);grid-area:hud;margin:10px 16px 0;position:static}.hud-cell{flex:1 1 0;min-width:0;padding:7px 8px 8px}.hud-cell .value{font-size:16px}.transport,.view-switch{display:none}.legend{width:138px;padding:5px 7px 6px;top:8px;bottom:auto;right:8px}.legend .smoke-key{display:none}.hint-chip{padding:6px 11px 6px 8px;font-size:12px;bottom:10px}.banner{max-width:calc(100% - 16px);font-size:12px;top:8px;left:8px}.measure{padding:12px 16px 16px}.chart-wrap{height:140px}.controls{z-index:30;overscroll-behavior:contain;max-height:82dvh;padding:0 16px calc(var(--dock-h) + 16px + env(safe-area-inset-bottom));border:1px solid var(--line-2);visibility:hidden;border-radius:16px 16px 0 0;transition:transform .2s cubic-bezier(.2,.7,.2,1);position:fixed;bottom:0;left:0;right:0;overflow-y:auto;transform:translateY(105%);box-shadow:0 -16px 40px #0000008c}.controls.is-open{visibility:visible;transform:none}.controls .drawer-head{z-index:1;background:var(--panel);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;margin:0 -16px;padding:10px 16px 8px;display:flex;position:sticky;top:0}.drawer-scrim{z-index:25;background:#0506078c;position:fixed;inset:0}.drawer-scrim[hidden]{display:none}.dock{z-index:40;height:calc(var(--dock-h) + env(safe-area-inset-bottom));padding:6px 8px calc(6px + env(safe-area-inset-bottom));border-top:1px solid var(--line-2);background:#101215f7;grid-template-columns:repeat(5,1fr);gap:4px;display:grid;position:fixed;bottom:0;left:0;right:0}.dock button{border-radius:var(--radius-sm);min-height:52px;color:var(--text-2);cursor:pointer;background:0 0;border:0;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:4px 2px;font-size:11px;display:flex}.dock button svg{width:22px;height:22px}.dock button[aria-pressed=true],.dock button[aria-checked=true]{color:var(--bg);background:var(--smoke)}.dock button:active{background:var(--raise)}.toasts{top:auto;bottom:calc(var(--dock-h) + 12px);position:fixed}.bench-title{padding:10px 12px 0}.bench-title h2{font-size:14px}.bench-title p,.bench-results{display:none}.bench-phone{display:block!important}.how{border-radius:0;width:100vw;max-width:100vw;height:100dvh;max-height:100dvh;margin:0}.how-body{padding:4px 16px 32px}}.bench-phone{display:none}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:0s!important;animation-duration:0s!important}}.app{position:relative}.hud{grid-area:tunnel}.phone-views,.transport-row{display:none}@media (max-width:699px){.phone-views{display:block}.transport-row{display:grid}.hud{grid-area:hud}}.app[data-mode=benchmark] .view-switch,.app[data-mode=benchmark] .transport,.app[data-mode=benchmark] .legend,.app[data-mode=benchmark] .hud,.app[data-mode=benchmark] .hint-chip{display:none}.app[data-mode=benchmark] .tunnel .overlay{cursor:default}.segmented label strong{font-size:13px;font-weight:600}.app[data-mode=benchmark] .banner{display:none}@media (min-width:1100px){.controls{-webkit-mask-image:linear-gradient(#0000 0,#000 14px);mask-image:linear-gradient(#0000 0,#000 14px)}}@media (min-width:700px) and (max-width:1099px){.measure{align-self:start;position:sticky;top:0}.hint-chip{bottom:80px}}@media (max-width:699px){.phone-views .segmented label .num{display:none}.phone-views .segmented label{min-height:44px}}@media (pointer:coarse){.view-switch .segmented label,.select,.btn{min-height:44px}input[type=range]{height:40px}.check{min-height:44px}}
