/* The sample is an editorial explanation, clearly separate from the app captures. */
.download-actions{display:flex;align-items:center;gap:28px}
.demo-jump{display:inline-flex;align-items:center;justify-content:center;gap:16px;min-height:44px;font-size:14px;text-decoration-thickness:1px;white-space:nowrap}
.demo-jump:hover{color:var(--copper)}
.engine-demo{padding-top:92px;scroll-margin-top:28px}
.engine-intro{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end}
.engine-intro .eyebrow{color:var(--copper);margin-bottom:24px}
.engine-intro>p{font-size:18px;line-height:1.7;max-width:460px;justify-self:end;color:var(--muted)}
.engine-thread{position:relative;display:flex;justify-content:space-between;gap:18px;margin-top:42px;padding-top:17px;font-size:10px;letter-spacing:1.3px;color:var(--muted);border-top:1px solid var(--line)}
.engine-thread::before{content:'';position:absolute;top:-1px;left:0;width:100%;height:1px;background:var(--copper);transform:scaleX(var(--engine-line,1));transform-origin:left}
.demo-introduction{display:grid;grid-template-columns:1fr 1fr;gap:80px;margin-top:54px;align-items:start}
.demo-introduction>.eyebrow{color:var(--copper);padding-top:4px}
.demo-introduction>p:last-child{max-width:460px;justify-self:end;color:var(--muted);font-size:16px;line-height:1.65}
.engine-demo [hidden]{display:none!important}
.demo-ui{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;margin-top:56px;align-items:stretch}
.demo-work{scroll-margin-top:24px;padding:34px;background:#181713;border:1px solid var(--line);min-width:0}
.demo-topline{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--copper)}
.demo-topline>span:last-child{font-size:10px;letter-spacing:1.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.demo-lift{display:flex;align-items:baseline;justify-content:space-between;gap:18px;margin-top:31px}
.demo-lift h3{font-size:32px;line-height:1.1;letter-spacing:-1.1px;font-weight:600}
.demo-lift>p{font-size:36px;letter-spacing:-1.4px;font-variant-numeric:tabular-nums;white-space:nowrap}
.demo-lift>p>span{font-size:16px;letter-spacing:0;color:var(--muted)}
.demo-prescription{font-size:14px;line-height:1.6;color:var(--muted);margin-top:11px}
.demo-progress{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid var(--line);padding-top:24px;margin-top:24px;font-size:12px;color:var(--muted)}
.demo-progress>span{font-size:9px;letter-spacing:1px}
.demo-sets{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px;list-style:none;padding:0;margin:14px 0 4px}
.demo-sets[data-count='6']{grid-template-columns:repeat(6,minmax(0,1fr))}
.demo-sets li{min-width:0}
.demo-set{width:100%;min-height:64px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;border:1px solid var(--line);border-radius:12px;background:transparent;color:var(--paper);padding:9px 2px;cursor:pointer;font-variant-numeric:tabular-nums;touch-action:manipulation}
.demo-set>span:first-child{font-size:9px;letter-spacing:1px;color:var(--muted)}
.demo-set>span:last-child{font-size:20px;font-weight:550;line-height:1}
.demo-set:disabled{cursor:default;color:#8c8980}
.demo-set[aria-current='step']{border-color:var(--copper);box-shadow:inset 0 -2px var(--copper)}
.demo-set[data-logged='true']{background:var(--copper);border-color:var(--copper);color:var(--ink)}
.demo-set[data-logged='true']>span:first-child{color:#3d2513}
.demo-set:not(:disabled):hover{border-color:var(--copper)}
.demo-set-tools{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.demo-set-tools>p{font-size:11px;line-height:1.5;color:var(--muted)}
.demo-edit{display:inline-flex;align-items:center;gap:10px;min-height:44px;border:0;background:transparent;color:var(--copper);padding:7px 0;font-size:12px;white-space:nowrap;cursor:pointer}
.demo-edit:disabled{color:var(--muted);cursor:default}
.demo-dialog{width:min(420px,calc(100% - 32px));max-height:calc(100svh - 32px);margin:auto;padding:28px;border:1px solid #63503e;border-radius:16px;background:#181713;color:var(--paper);box-shadow:0 24px 80px #0009;overscroll-behavior:contain}
.demo-dialog:not([open]){display:none}
.demo-dialog::backdrop{background:#080706b8}
.demo-dialog .eyebrow{color:var(--copper);font-size:9px}
.demo-dialog h3{font-size:26px;line-height:1.25;letter-spacing:-.7px;font-weight:550;margin:12px 0 24px}
.demo-dialog h3:focus-visible{outline:2px solid var(--copper);outline-offset:6px}
.demo-set-picker{margin-bottom:23px}
.demo-set-picker>label{display:block;font-size:12px;color:var(--muted);margin-bottom:9px}
.demo-set-picker>select{width:100%;min-height:46px;border:1px solid var(--line);border-radius:6px;background:#201e19;color:var(--paper);padding:10px 12px;font:inherit;font-size:15px}
.demo-set-picker>select:focus-visible{outline:3px solid var(--copper);outline-offset:4px}
.demo-editor{padding:0;margin:0;border:0;min-width:0}
.demo-editor>label{display:block;font-size:13px;color:var(--muted);margin-bottom:10px}
.rep-control{display:grid;grid-template-columns:64px minmax(0,1fr) 64px;gap:10px;align-items:center;max-width:330px}
.rep-control button{height:58px;background:transparent;color:var(--paper);border:1px solid var(--line);font-size:28px;cursor:pointer}
.rep-control button:not(:disabled):hover{border-color:var(--copper);color:var(--copper)}
.rep-control input{width:100%;min-width:0;height:64px;padding:0 7px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;color:var(--paper);font:inherit;font-size:51px;font-weight:500;text-align:center;letter-spacing:-2px;font-variant-numeric:tabular-nums;appearance:textfield;-moz-appearance:textfield}
.rep-control input::-webkit-inner-spin-button,.rep-control input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.rep-control input:focus-visible{outline:3px solid var(--copper);outline-offset:4px}
.rep-control input[aria-invalid='true']{border-bottom-color:var(--copper)}
.demo-hint{font-size:12px;line-height:1.65;color:var(--muted);margin-top:13px;max-width:440px}
.demo-error{font-size:12px;line-height:1.6;color:#f0b989;margin-top:14px}
.demo-editor-actions{display:grid;grid-template-columns:1fr 1.5fr;gap:12px;margin-top:25px}
.demo-save,.demo-cancel{min-height:48px;border:1px solid var(--line);border-radius:7px;padding:12px;font-size:14px;font-weight:550;cursor:pointer;touch-action:manipulation}
.demo-save{background:var(--copper);color:var(--ink);border-color:var(--copper)}
.demo-save:hover{background:#e29d68}
.demo-cancel{background:transparent;color:var(--paper)}
.demo-cancel:hover{border-color:var(--copper)}
.demo-log,.demo-finish,.demo-next{display:flex;justify-content:space-between;align-items:center;gap:16px;width:100%;min-height:54px;border:1px solid var(--copper);padding:15px 18px;background:transparent;color:var(--paper);font-size:14px;font-weight:600;cursor:pointer;text-align:left}
.demo-log{flex-direction:column;align-items:flex-start;justify-content:center;gap:5px;min-height:69px;margin-top:0;touch-action:manipulation}
.demo-log>small{font-size:12px;font-weight:400;line-height:1.4;color:var(--muted)}
.demo-finish>span,.demo-next>span{font-size:20px;line-height:1}
.demo-log:not([aria-disabled='true']):hover{background:#2f241b}
.demo-log[aria-disabled='true']{border-color:var(--line);color:var(--muted);cursor:default}
.demo-feedback{font-size:12px;line-height:1.65;min-height:40px;color:var(--muted);margin-block:14px 18px}
.demo-feedback[data-error='true']{color:#f0b989}
.demo-finish{background:var(--copper);color:var(--ink);border-color:var(--copper)}
.demo-finish:not(:disabled):hover{background:#e29d68}
.demo-finish:disabled{background:transparent;border-color:var(--line);color:#8c8980;cursor:default}
.demo-editor:disabled .rep-control,.demo-editor:disabled .demo-log{opacity:.55}
.demo-log:disabled,.rep-control button:disabled{cursor:default}
.demo-result{scroll-margin-top:24px;background:var(--paper);color:var(--ink);padding:34px;display:flex;flex-direction:column;min-width:0}
.demo-result>.eyebrow{color:#7f4b28}
.demo-result h3{font-size:clamp(45px,5.5vw,76px);font-weight:550;line-height:1.03;letter-spacing:-.055em;margin-top:39px;font-variant-numeric:tabular-nums}
.demo-result h3:focus{outline-offset:8px}
.demo-result-sets{font-size:19px;letter-spacing:-.35px;line-height:1.5;margin-top:21px}
.demo-result-reason{font-size:16px;line-height:1.75;color:#625d52;margin-top:22px;max-width:445px}
.demo-result-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;padding-top:24px;border-top:1px solid #c6bfb2;margin:28px 0 0}
.demo-result-facts dt{font-size:10px;line-height:1.5;color:#625d52}
.demo-result-facts dd{font-size:22px;letter-spacing:-.7px;margin:8px 0 0;font-variant-numeric:tabular-nums}
.demo-result-actions{padding-top:36px;margin-top:auto;display:flex;flex-direction:column;gap:8px}
.demo-next{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.demo-next:hover{background:#302a21}
.demo-reset{align-self:flex-start;min-height:44px;display:inline-flex;align-items:center;gap:16px;border:0;border-bottom:1px solid #b6ad9d;border-radius:0;padding:8px 0;background:transparent;color:#514b40;font-size:13px;cursor:pointer}
.demo-reset:hover{color:var(--ink);border-color:var(--ink)}
.demo-history{margin-top:32px;border-top:1px solid #c6bfb2;padding-top:22px}
.demo-history>.eyebrow{color:#7f4b28;font-size:9px}
.demo-history ol{list-style:none;padding:0;margin:15px 0 0;display:grid;gap:12px}
.demo-history li{display:grid;grid-template-columns:24px 1fr;gap:10px;font-size:12px;line-height:1.6;color:#625d52}
.demo-history li>span:first-child{font-variant-numeric:tabular-nums;color:#8d7158}
.demo-scope{font-size:12px;line-height:1.7;color:var(--muted);max-width:790px;margin-top:21px}
.demo-static{border:1px solid var(--line);padding:28px;margin-top:56px;font-size:16px;line-height:1.8;color:var(--muted)}
.demo-static p+p{margin-top:18px}
.demo-static strong{font-weight:550;color:var(--paper)}
.demo-static p:nth-child(2){display:flex;flex-wrap:wrap;gap:12px 22px}
.engine-explanation{margin-top:34px;border-block:1px solid var(--line)}
.engine-explanation summary{cursor:pointer;min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:16px;list-style:none;font-size:15px;font-weight:550}
.engine-explanation summary::-webkit-details-marker{display:none}
.engine-explanation summary>span{font-size:25px;color:var(--copper);transition:transform .25s}
.engine-explanation[open] summary>span{transform:rotate(45deg)}
.engine-explanation summary:focus-visible{outline:3px solid var(--copper);outline-offset:5px}
.engine-explanation-copy{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding-block:8px 33px}
.engine-explanation-copy h3{font-size:19px;line-height:1.35;letter-spacing:-.4px;font-weight:550;margin-bottom:15px}
.engine-explanation-copy p{font-size:14px;line-height:1.8;color:var(--muted);max-width:530px}
.engine-explanation-copy p+p{margin-top:14px}
@media(max-width:1050px){.download-actions{gap:18px}.engine-intro,.demo-introduction,.engine-explanation-copy{gap:40px}.demo-work,.demo-result{padding:27px}.demo-lift h3{font-size:28px}.demo-lift>p{font-size:32px}.demo-ui{gap:18px}}
@media(max-width:800px){.demo-ui{grid-template-columns:1fr}.demo-work,.demo-result{padding:30px}.demo-result h3{font-size:65px}.demo-result-actions{margin-top:0}.demo-sets{grid-template-columns:repeat(5,minmax(0,1fr))}.demo-sets[data-count='6']{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media(max-width:700px){.download-actions{flex-direction:column-reverse;align-items:stretch;gap:5px}.demo-jump{font-size:13px;justify-content:space-between;min-height:44px}.engine-demo{padding-top:55px;scroll-margin-top:20px}.engine-intro{display:block}.engine-intro .eyebrow{margin-bottom:20px}.engine-intro>p{font-size:17px;margin-top:24px;max-width:none}.engine-thread{margin-top:30px;font-size:7px;letter-spacing:.65px;gap:9px;padding-top:13px}.engine-thread span:last-child{text-align:right}.engine-thread span:nth-child(2){text-align:center}.demo-introduction{display:block;margin-top:37px}.demo-introduction>.eyebrow{padding:0;margin-bottom:15px}.demo-introduction>p:last-child{font-size:16px;max-width:none}.demo-ui{margin-top:36px;gap:16px}.demo-work,.demo-result{padding:24px}.demo-topline .eyebrow{font-size:9px;letter-spacing:1.3px}.demo-topline>span:last-child{font-size:9px;letter-spacing:1px}.demo-lift{margin-top:27px;gap:12px}.demo-lift h3{font-size:28px}.demo-lift>p{font-size:33px}.demo-progress{padding-top:21px;margin-top:21px;font-size:11px}.demo-progress>span{font-size:8px;letter-spacing:.6px}.demo-sets{gap:6px;margin-bottom:4px}.demo-sets[data-count='6']{grid-template-columns:repeat(3,minmax(0,1fr))}.demo-set{min-height:59px}.demo-set>span:first-child{font-size:8px;letter-spacing:.65px}.rep-control{grid-template-columns:60px minmax(0,1fr) 60px}.demo-result h3{font-size:59px;margin-top:30px}.demo-result-sets{font-size:18px}.demo-result-reason{font-size:16px}.demo-result-facts{gap:12px}.demo-result-facts dt{font-size:9px}.demo-result-facts dd{font-size:20px}.demo-result-actions{padding-top:26px}.demo-scope{font-size:11px;margin-top:17px}.engine-explanation{margin-top:27px}.engine-explanation summary{font-size:14px;gap:18px}.engine-explanation-copy{grid-template-columns:1fr;gap:26px;padding-bottom:27px}.engine-explanation-copy h3{font-size:18px}.demo-static{padding:23px;font-size:15px}}
@media(max-width:370px){.demo-work,.demo-result{padding:20px}.demo-lift h3{font-size:25px}.demo-lift>p{font-size:29px}.demo-result h3{font-size:52px}.rep-control{grid-template-columns:54px minmax(0,1fr) 54px}.demo-result-facts{grid-template-columns:1fr 1fr}.engine-thread{font-size:6.5px;letter-spacing:.4px}}
@media(prefers-reduced-motion:reduce){.engine-thread::before{transform:none}.engine-explanation summary>span{transition:none}}
/* A small reversible separation makes the plan-to-work story unfold on scroll. */
.session-spread .plan-figure{translate:0 var(--plan-drift,0px)}
.session-spread .workout-figure{translate:0 var(--workout-drift,0px)}
@media(prefers-reduced-motion:reduce){.session-spread .plan-figure,.session-spread .workout-figure{translate:none}}