.help-btn{display:inline-flex;align-items:center;justify-content:center;flex:none;width:18px;height:18px;border-radius:50%;border:1px solid var(--blue);background:#fff;color:var(--blue-text);font:700 11px/1 system-ui,sans-serif;cursor:pointer;padding:0;vertical-align:middle}.help-btn:hover{background:var(--blue-text);color:#fff}.help-btn.demo{pointer-events:none}.help-anim{margin:0}.help-anim img{width:100%;height:auto;display:block;border-radius:10px;background:#f2f9fd;border:1px solid var(--line-2)}.help-anim figcaption{font-size:12px;color:var(--muted);margin-top:4px}.help-def{margin:0;font-size:15px}dl.help-facts{display:grid;grid-template-columns:max-content 1fr;gap:2px 12px;margin:0;font-size:13.5px}dl.help-facts dt{color:var(--muted)}dl.help-facts dd{margin:0}.help-more{margin:0;font-size:13.5px;color:var(--ink-2)}section.step{border:1px solid var(--line);border-left:6px solid var(--blue-text);border-radius:14px;padding:18px 22px 22px;margin:22px 0;background:#fff;box-shadow:0 1px 2px #21272c0a;position:relative}section.step+section.step:before{content:"";position:absolute;left:50%;top:-22px;width:2px;height:22px;background:#dfe6ec}section.step.locked{background:#fbfcfd;border-style:dashed;border-left-style:solid;border-left-color:#8a97a1}section.step.locked .step-no{background:#8a97a1}section.step.later{border-left-color:#cfd8df}section.step.later .step-no{background:#e3e8ed;color:var(--ink-2)}section.step.later h2,section.step.later .step-q{color:var(--muted)}.step-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line-2)}.step-no{flex:none;width:34px;height:34px;border-radius:50%;background:var(--blue-text);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:16px}.step-title{flex:1;min-width:0}.step-title h2{margin:0 0 2px;font-size:20px;letter-spacing:-.3px}.step-q,.locked-note p,.later-note p{margin:0;color:var(--ink-2);font-size:14px}.row{display:flex;gap:12px 22px;flex-wrap:wrap;align-items:flex-end;margin-bottom:12px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px 18px;margin-bottom:12px}.grid.big{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}.grid.big input{font-size:17px;padding:8px 10px}.field{display:flex;flex-direction:column;gap:4px;min-width:0}.field.wide{grid-column:1 / -1}.field-label{display:flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-2);font-weight:600}.control{display:flex;align-items:center;gap:6px}.control input[type=number],.control input[type=text],.control select,.load-table input[type=text]{font:inherit;font-size:14px;padding:6px 8px;border:1px solid #cfd8df;border-radius:8px;width:100%;min-width:0;background:#fff;color:var(--ink)}.control input:focus,.control select:focus,.load-table input:focus{outline:2px solid var(--blue-text);outline-offset:1px;border-color:var(--blue-text)}.control input:read-only{background:#f8fafc;color:var(--ink-2)}.control .unit{flex:none;color:var(--muted);font-size:13px;min-width:22px}.field.bad input{border-color:var(--fail)}.field-msg{color:var(--fail);font-size:12.5px}.field-note{color:var(--muted);font-size:12px}.segmented{display:inline-flex;border:1px solid #cfd8df;border-radius:9px;overflow:hidden;background:#fff}.segmented button{font:inherit;font-size:13.5px;padding:6px 12px;border:0;background:#fff;color:var(--ink-2);cursor:pointer}.segmented button+button{border-left:1px solid #cfd8df}.segmented button.on{background:var(--blue-text);color:#fff;font-weight:600}.segmented button:focus-visible{outline-offset:-3px}.field.switch{flex-direction:row;align-items:center;gap:8px;margin:6px 0}.field.switch .field-label{gap:8px;cursor:pointer;font-size:14px;color:var(--ink)}.field.switch input{width:16px;height:16px;accent-color:var(--blue-text)}details.adv{border:1px solid var(--line-2);border-radius:10px;padding:0 14px;margin:10px 0;background:#fafbfc}details.adv summary{cursor:pointer;padding:10px 0;font-weight:600;font-size:14px}details.adv[open] summary{border-bottom:1px solid var(--line-2);margin-bottom:12px}.sum-hint{font-weight:400;color:var(--muted);font-size:12.5px;margin-left:8px}.result-line{margin:2px 0 12px;font-size:14.5px}.dim{color:var(--muted)}.gearbox{margin:8px 0 4px}.error{color:var(--fail);background:var(--fail-bg);border-radius:8px;padding:8px 12px;font-size:14px;margin-top:8px}.type-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:10px;margin:4px 0 14px}.type-card{display:flex;flex-direction:column;gap:3px;text-align:left;font:inherit;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;position:relative;color:var(--ink)}.type-card img{width:100%;height:62px;object-fit:contain;margin-bottom:4px}.type-card b{font-size:14px}.type-card span{font-size:12px;color:var(--ink-2);line-height:1.35}.type-card:hover{border-color:var(--blue)}.type-card.on{border-color:var(--blue-text);box-shadow:0 0 0 2px var(--blue-text) inset}.type-card.soon{opacity:.75}.type-card em{position:absolute;top:8px;right:8px;font-style:normal;font-size:11px;background:var(--warn-bg);color:var(--warn);padding:1px 7px;border-radius:999px}.load{margin-top:14px}table.load-table,table.inertia{width:100%;border-collapse:collapse;font-size:13.5px;margin-top:6px}.load-table th,.load-table td,.inertia th,.inertia td{text-align:left;padding:5px 6px;border-bottom:1px solid var(--line-2);vertical-align:middle}.load-table th.num,.load-table td.num,.inertia th.num,.inertia td.num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}.load-table th{color:var(--ink-2);font-weight:600;font-size:12.5px}.load-table tfoot th,.load-table tfoot td{border-bottom:0;border-top:2px solid var(--line)}.control.small{display:inline-flex;justify-content:flex-end}.control.small input{width:104px;font-size:13.5px;padding:4px 6px;text-align:right}.pair{display:inline-flex;gap:6px}.icon-btn{font:inherit;border:1px solid #cfd8df;background:#fff;border-radius:6px;cursor:pointer;padding:1px 7px;color:var(--ink-2)}.icon-btn:hover{border-color:var(--fail);color:var(--fail)}.word-btn{font:inherit;font-size:13px;border:1px solid var(--blue-text);color:var(--blue-text);background:#fff;border-radius:8px;padding:4px 10px;cursor:pointer;white-space:nowrap}.word-btn:hover{background:#f2f9fd}.at-motor{margin-top:18px}.at-motor h3{margin:0 0 4px;font-size:13px;text-transform:uppercase;letter-spacing:.4px;color:var(--ink-2)}.inertia td.how{color:var(--muted);font-size:12.5px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.inertia tr.total th,.inertia tr.total td{font-weight:700;border-top:2px solid var(--line);border-bottom:0}.at-motor p.dim{font-size:13px;margin:6px 0 0}.graphs{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:18px;align-items:start}@media(max-width:760px){.graphs{grid-template-columns:1fr}}.chart svg{width:100%;height:auto;display:block}.band.accel{fill:#e8f3fb}.band.cruise{fill:#eef7f0}.band.decel{fill:#fbeee8}.band.dwell{fill:#f3f4f6}.band-label{font-size:11px;fill:var(--muted)}.zero,.tick{stroke:#cfd8df}.tick-label{font-size:11px;fill:var(--muted)}.curve{fill:none;stroke-width:2.2;stroke-linejoin:round;stroke-linecap:round}.cursor line{stroke:var(--ink);stroke-dasharray:3 3}.chart-foot{margin-top:8px}.chips{display:flex;flex-wrap:wrap;gap:6px}.chip{display:inline-flex;align-items:center;gap:6px;font:inherit;font-size:12.5px;cursor:pointer;border:1px solid #cfd8df;border-radius:999px;padding:3px 10px 3px 7px;background:#fff;color:var(--ink-2)}.chip i{width:10px;height:10px;border-radius:50%;background:var(--chip);opacity:.3}.chip.on{border-color:var(--chip);color:var(--ink)}.chip.on i{opacity:1}.chip small{color:var(--muted)}.chip:disabled{cursor:default}.chip:disabled:not(.on){opacity:.6}.readout{font-size:12.5px;color:var(--ink-2);margin-top:6px;min-height:1.4em;font-variant-numeric:tabular-nums}dl.keys{margin:0;display:grid;grid-template-columns:1fr;gap:4px;align-content:start;border-left:1px solid var(--line-2);padding-left:16px}@media(max-width:760px){dl.keys{grid-template-columns:1fr 1fr;border-left:0;padding-left:0}}dl.keys dt{font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.3px}dl.keys dd{margin:0 0 6px;font-size:17px;font-weight:600;font-variant-numeric:tabular-nums}dl.keys dd small{display:block;font-size:12px;color:var(--muted);font-weight:400}ul.warnings{list-style:none;margin:14px 0 0;padding:0}ul.warnings li{padding:8px 12px;border-radius:8px;margin:6px 0;font-size:14px}ul.warnings li.fail{background:var(--fail-bg)}ul.warnings li.warn{background:var(--warn-bg)}ul.warnings .hint{font-size:13px;color:var(--ink-2);margin-top:3px}.badge{display:inline-block;font-weight:700;border-radius:999px;padding:1px 9px;font-size:12px;margin-right:4px;vertical-align:1px}.badge.ok{background:var(--ok-bg);color:var(--ok)}.badge.warn{background:#ffe9b3;color:var(--warn)}.badge.fail{background:#f9d2cf;color:var(--fail)}.all-clear{margin:14px 0 0;font-size:14px}details.calc{margin:16px 0 0;border:1px solid var(--line);border-radius:12px;background:#fff}details.calc summary{cursor:pointer;padding:10px 14px;font-weight:600;font-size:14px;list-style:none;display:flex;align-items:center;gap:10px}details.calc summary::-webkit-details-marker{display:none}details.calc summary .sum-icon{display:inline-flex;width:26px;height:26px;border-radius:8px;align-items:center;justify-content:center;background:#f2f9fd;color:var(--blue-text);font-size:15px;flex:none}details.calc summary:after{content:"▸";color:var(--muted);font-size:14px;margin-left:auto}details.calc[open] summary:after{content:"▾"}details.calc[open] summary{border-bottom:1px solid var(--line-2)}details.calc table{width:100%;border-collapse:collapse;font-size:13px}details.calc th,details.calc td{text-align:left;padding:6px 14px;border-bottom:1px solid var(--line-2);vertical-align:top}details.calc th{color:var(--ink-2);font-weight:600;width:22%}details.calc td.f{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--ink);white-space:nowrap}details.calc td.n{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--ink-2)}details.calc tr:last-child th,details.calc tr:last-child td{border-bottom:0}details.calc .calc-note{margin:0;padding:8px 14px 10px;font-size:12.5px;color:var(--muted);border-top:1px solid var(--line-2)}@media(max-width:640px){details.calc td.f{white-space:normal}}.reset{font-size:13px;color:var(--muted);margin:26px 0}.two-col{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,2fr);gap:22px 26px;align-items:start}.two-col>.illus{position:sticky;top:14px}@media(max-width:860px){.two-col{grid-template-columns:1fr}.two-col>.illus{position:static}}.scene svg{width:100%;height:auto;display:block;border:1px solid var(--line-2);border-radius:12px;background:#fff}.scene.pending img{width:100%;height:auto;display:block;border:1px solid var(--line-2);border-radius:12px;background:#fff;padding:10px}.illus .caption{font-size:12px;color:var(--muted);margin:6px 0 0;line-height:1.4}.unit-toggle{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;margin:20px 0 2px}.unit-toggle-label{font-size:13px;font-weight:600;color:var(--ink-2);margin-right:4px;text-transform:uppercase;letter-spacing:.4px}.unit-toggle button{display:inline-flex;flex-direction:column;align-items:center;gap:1px;cursor:pointer;font:inherit;font-size:14px;font-weight:600;color:var(--blue-text);background:#fff;border:2px solid var(--blue-text);border-radius:10px;padding:7px 18px;min-width:150px}.unit-toggle button small{font-size:11px;font-weight:400;color:var(--muted)}.unit-toggle button.on{background:var(--blue-text);color:#fff}.unit-toggle button.on small{color:#e6f2fa}.unit-toggle button:hover:not(.on){background:#f2f9fd}dl.keys.strip{grid-template-columns:repeat(auto-fill,minmax(118px,1fr));border-left:0;padding:10px 0 0;border-top:1px solid var(--line-2);margin-top:8px;gap:6px 12px}.case-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin:14px 0 0;padding:10px 14px;border:1px solid var(--line);border-radius:12px;background:#fafbfc}.case-bar label{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-2);font-weight:600}.case-bar input[type=text],.case-bar select{font:inherit;font-size:13.5px;font-weight:400;padding:5px 8px;border:1px solid #cfd8df;border-radius:8px;background:#fff;color:var(--ink)}.case-bar input[type=text]{width:190px}.case-bar select{max-width:230px}.case-bar input:focus,.case-bar select:focus{outline:2px solid var(--blue-text);outline-offset:1px;border-color:var(--blue-text)}.case-bar .sep{flex:1}.word-btn.primary{background:var(--blue-text);color:#fff}.word-btn.primary:hover{background:var(--blue-dark)}.word-btn.danger{border-color:#cfd8df;color:var(--ink-2)}.word-btn.danger:hover{border-color:var(--fail);color:var(--fail);background:#fff}.word-btn:disabled{opacity:.5;cursor:default}.word-btn:disabled:hover{background:#fff}.case-msg{font-size:12.5px;flex-basis:100%}.case-msg.ok{color:var(--ok)}.case-msg.bad{color:var(--fail)}.axis-title{font-size:11px;fill:var(--ink-2)}.motor-summary{margin:4px 0 12px;padding:10px 14px;border:1px solid var(--line-2);border-radius:10px;background:#fafbfc}.motor-summary dl{margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:6px 12px}.motor-summary dt{font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.3px}.motor-summary dd{margin:0;font-size:14px;font-weight:600;font-variant-numeric:tabular-nums}.row-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:10px}.manual-motor{margin:4px 0 12px;padding:10px 14px 12px;border:1px solid var(--line-2);border-radius:10px;background:#fafbfc}.verdict{margin:14px 0 8px;font-size:15px}table.checks,table.segments{width:100%;border-collapse:collapse;font-size:13.5px;margin:6px 0 12px}table.checks th,table.checks td,table.segments th,table.segments td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line-2);vertical-align:top}table.checks thead th,table.segments thead th{color:var(--ink-2);font-weight:600;font-size:12.5px}table.checks th.num,table.checks td.num,table.segments th.num,table.segments td.num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}table.checks tbody th{font-weight:600}table.checks tbody th .hint{font-weight:400;font-size:12px;color:var(--muted);margin-top:2px}table.checks tr.fail td,table.checks tr.fail th{background:#fff5f4}table.checks tr.warn td,table.checks tr.warn th{background:#fffaeb}table.segments tbody th{text-transform:capitalize;font-weight:500;color:var(--ink-2)}table.segments tr.total th,table.segments tr.total td{font-weight:700;border-top:2px solid var(--line);border-bottom:0}.sub-h{margin:14px 0 2px;font-size:13px;text-transform:uppercase;letter-spacing:.4px;color:var(--ink-2)}.regen-card{margin:14px 0 0;padding:12px 16px 10px;border-radius:12px;border:1px solid var(--line)}.regen-card.ok{background:#f3faf5;border-color:#cfe9d8}.regen-card.warn{background:#fff8e6;border-color:#f2dca3}.regen-verdict{display:flex;align-items:center;gap:8px;font-size:15px;margin-bottom:6px}.regen-card dl.keys.strip{border-top:0;padding-top:4px;margin-top:0}.regen-card p.dim{margin:6px 0 0;font-size:13px}.send-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:14px 0 6px}.word-btn.big{font-size:15px;padding:9px 18px;border-radius:10px}.chart-head{display:flex;align-items:center;gap:6px;margin:10px 0 4px;font-size:13px;font-weight:600;color:var(--ink-2)}.chips .help-btn{align-self:center}.regen-note{font-size:13px;color:var(--ink-2);margin:0 0 12px;line-height:1.45}.end-h{font-size:15px;margin:26px 0 0;color:var(--ink-2);text-transform:uppercase;letter-spacing:.4px}.motor-files{margin:12px 0 14px;padding:10px 14px;border:1.5px dashed var(--line-2);border-radius:10px;background:#fafbfc;transition:border-color .15s,background .15s}.motor-files.over{border-color:var(--blue-text);background:#eef7fd}.motor-files p{margin:4px 0 0;font-size:13px;color:var(--ink-2);line-height:1.7}.motor-files .field-msg{margin-top:6px}.field-msg.ok{color:var(--ok)}.preset-offer{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin:16px 0 0;padding:10px 14px;border:1px solid #b9dcf3;background:#f2f9fd;border-radius:12px;font-size:14px}.preset-offer>span{flex:1 1 320px}
