@charset "UTF-8";
/* Controls, beam and diagram basics, start-up splash, vibration modes. */
/* Manual vehicle-position slider */
.position-controls input[type=number]{width:85px;min-height:29px;padding:3px 6px}
.position-controls input[type=range]{width:clamp(110px,18vw,220px);min-height:22px;padding:0;accent-color:var(--teal)}
.focus-results{--plot-h:190px}
.stiffness-warning{background:#fff6e5;color:#7a4b00;border:1px solid #efcf8f;border-radius:6px;padding:8px 10px;margin:0 0 10px;font-size:.8125rem;line-height:1.5}
.stiffness-warning small{color:#8a6a2f}
.stiffness-plot{width:100%;height:var(--plot-h);overflow:visible}
.stiffness-plot text,.plot text.peak-label{font-family:"Segoe UI",sans-serif;font-size:calc(11.5px / var(--k,1))}
.plot text.peak-label{font-weight:600;paint-order:stroke;stroke:#fff;stroke-width:calc(3px / var(--k,1))}
.stiffness-plot text{fill:var(--axis)}
.grid-line{stroke:#edf2f5;stroke-width:.8}
.plot text.tick,.il-plot text.tick{font-size:calc(11px / var(--k,1));fill:var(--axis);paint-order:stroke;stroke:#fff;stroke-width:calc(3px / var(--k,1))}
.il-plot{width:100%;height:var(--plot-h);overflow:visible;cursor:crosshair}
.il-plot text{font-family:"Segoe UI",sans-serif;font-size:calc(11.5px / var(--k,1));fill:var(--axis)}
.il-plot text.peak-label{font-weight:600;paint-order:stroke;stroke:#fff;stroke-width:calc(3px / var(--k,1))}
.il-hint{margin:6px 0 2px}
.span-tag{white-space:nowrap}
.span-row{grid-template-columns:78px 1fr 22px}
.uplift-warning{background:#ffebe7;color:#9c3325;border:1px solid #e9b5aa;border-radius:6px;padding:8px 10px;margin:0 0 10px;font-size:.8125rem;line-height:1.5}
.fixed-note{margin-top:8px}
.play-button{font-weight:600}
.spring-row{display:flex;gap:10px;align-items:flex-end;margin:-2px 0 8px}
.spring-row .field{flex:1;margin:0}
.fixity{font-size:.75rem;color:#b07a1f;font-weight:600;white-space:nowrap;padding-bottom:10px}
#qb-splash{position:fixed;inset:0;z-index:9999;background:#061520;display:flex;align-items:center;justify-content:center;transition:opacity .55s ease,transform .6s cubic-bezier(.2,.7,.2,1);--sp-letter:.35em}
#qb-splash svg{width:100%;height:100%;display:block}
#qb-splash.sp-out{opacity:0;transform:scale(1.035);pointer-events:none}
#qb-splash .sp-small{font:500 11px "Segoe UI",system-ui,sans-serif;fill:#8fb3c4;letter-spacing:.06em}
#qb-splash .sp-dim{fill:#5f8699;font-size:10px}
#qb-splash .sp-amber{fill:#ffc978;font-weight:600;letter-spacing:.12em}
#qb-splash .sp-axle{font:600 10.5px "Segoe UI",system-ui,sans-serif;fill:#ffd99e}
#qb-splash .sp-word{font:700 46px "Segoe UI",system-ui,sans-serif;letter-spacing:var(--sp-letter)}
#qb-splash .sp-tag{font:500 13px "Segoe UI",system-ui,sans-serif;fill:#9cc2d2;letter-spacing:.28em;text-transform:uppercase}
#qb-splash .sp-support{opacity:0;transform-box:fill-box;transition:opacity .45s ease,translate .5s cubic-bezier(.2,1.6,.4,1);translate:0 14px}
#qb-splash.sp-supports-in .sp-support{opacity:1;translate:0 0}
#qb-splash-skip{position:absolute;right:22px;bottom:18px;border:1px solid #2c5b72;background:transparent;color:#8fb3c4;border-radius:50%;width:30px;height:30px;font-size:18px;line-height:1;cursor:pointer;opacity:.6}
#qb-splash-skip:hover{opacity:1;border-color:#56e0bb;color:#56e0bb}
@media (prefers-reduced-motion:reduce){
  #qb-splash{transition:opacity .2s}
}
#qb-splash .sp-warn{fill:#f3b561}
#qb-splash .sp-error{position:absolute;left:50%;bottom:14%;transform:translateX(-50%);width:min(620px,calc(100% - 32px));background:rgba(40,16,14,.92);border:1px solid #e2725b;color:#ffe3dc;border-radius:10px;padding:16px 18px;font:14px/1.55 "Segoe UI",system-ui,sans-serif;box-shadow:0 18px 50px rgba(0,0,0,.45)}
#qb-splash .sp-error small{color:#f4b3a6;word-break:break-word}
#qb-splash .sp-error .text-button{color:#8ff3d6;font-weight:600;margin-top:10px;margin-right:18px;background:none;border:0;cursor:pointer;font-size:14px}
#qb-splash .sp-error .sp-close{color:#c9dbe3}
#excel.excel-off{opacity:.55;text-decoration:line-through}
/* v0.8 vibration modes (modes.js) */
.modal-mode .metrics,.modal-mode .chart-toolbar,.modal-mode .result-footer{display:none}
.modal-mode #modes-view{border-top:1px solid var(--line);border-radius:8px;margin-top:14px}
.modal-title{margin:4px 0 10px;font-size:.8125rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:600}
.modal-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 18px;margin-bottom:10px}
.modal-controls{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;font-size:.8125rem}
.modal-controls label{display:flex;align-items:center;gap:6px}
.modal-controls select,.modal-controls input{min-height:30px;padding:3px 6px;font-size:.8125rem}
.modal-controls input{width:80px}
.modal-actions{display:flex;gap:10px;align-items:center}
.modal-spectrum-wrap{border-top:1px solid #edf1f4;padding-top:6px}
.modal-spectrum{display:block;overflow:visible}
.modal-spectrum text{font-family:"Segoe UI",sans-serif;font-size:10px;fill:var(--axis)}
.modal-spectrum .spec-label{font-size:10.5px;font-weight:600;fill:#17374b}
.modal-spectrum .spectrum-mode{cursor:pointer}
.modal-spectrum .spectrum-mode.selected .spec-label{fill:#c0392b}
.modal-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin:10px 0 4px;transition:opacity .2s}
.modal-grid.stale{opacity:.45}
.modal-card{display:flex;flex-direction:column;gap:2px;text-align:left;padding:7px 8px 6px;border:1px solid var(--line);border-radius:8px;background:#fbfdfe}
.modal-card:hover{border-color:#9fd9cf;background:#f4fbf9}
.modal-card.selected{border-color:#008378;box-shadow:0 0 0 1px #008378 inset;background:#effaf6}
.modal-card svg{width:100%;height:54px;display:block}
.mc-head{display:flex;justify-content:space-between;align-items:baseline;font-size:.8125rem}
.mc-head b{color:#008378;font-size:.9375rem}
.mc-foot{font-size:.6875rem;color:var(--muted);font-variant-numeric:tabular-nums}
.modal-hint{margin:6px 0 10px}
.modal-table{max-height:none}
.modal-table tr[data-mode-index]{cursor:pointer}
.modal-table tr.selected td{background:#effaf6;font-weight:600}
.plot path,.plot line,.il-plot path,.il-plot line,.stiffness-plot path,.stiffness-plot line,.stiffness-plot circle{vector-effect:non-scaling-stroke}
#beam{height:146px;overflow:visible}
.legend.delta i{background:#e8e2f3;border-top:2px solid #7a5bb5;border-bottom:0}
/* v0.8.6: isostatic span toggle beside each span length */
.span-row:has(.simple-toggle){grid-template-columns:78px 1fr 22px auto}
.simple-toggle{display:inline-flex;align-items:center;gap:4px;font-size:.75rem;color:var(--muted);white-space:nowrap;cursor:pointer}
.simple-toggle:has(input:checked){color:#a86a12;font-weight:600}
.self-weight-card .field-row{margin-top:4px}
.modal-mode .chart-toolbar{display:flex}
.modal-mode .view-tabs{display:none}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:4px 0 12px;font-size:.8125rem}
.compare-head span{overflow-wrap:anywhere}
.compare-note{color:var(--muted);font-size:.75rem;margin:0 0 10px}
.compare-legend{display:flex;flex-wrap:wrap;gap:18px;font-size:.75rem;margin:8px 0;color:var(--teal)}
.compare-legend span+span{color:#b96f17}
.comparison-table{margin-bottom:14px}
.comparison-table th,.comparison-table td{text-align:right}
.comparison-table td:first-child{text-align:left}
.comparison-mode .metrics{display:none}
@media(max-width:650px){
  .result-toolbar{flex-wrap:wrap}
  .result-toolbar .segmented{flex-wrap:wrap;max-width:100%}
  .result-toolbar #status{max-width:100%;text-align:left}
  .structure-heading{letter-spacing:.5px}
  .compare-head{flex-wrap:wrap}
  .compare-head>div{display:flex;gap:5px}
  .compare-head button{font-size:.75rem}
}
/* v0.9: the Δ switch stays next to the display modes, whatever the legend text */
.display-left{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.display-controls #legend{margin-left:auto}