/* Step-by-step lab view (steps.js). Only applies when body.has-steps is set, so the page falls back cleanly. */
.has-steps .step-hide{display:none!important}
.has-steps .shell{grid-template-columns:248px minmax(0,1fr)}
.has-steps .side a{font-size:13.5px;padding:6px 9px}
.has-steps .side h2{font-size:11px}
@media(max-width:1000px){.has-steps .shell{grid-template-columns:1fr}}

.has-steps main{max-width:1040px}
.has-steps .labhero{padding:16px 22px;margin-bottom:10px}
.has-steps .labhero h1{margin:.1em 0 .25em}

/* Sticky stepper */
.lab-stepper{position:sticky;top:66px;z-index:40;background:rgba(244,246,250,.97);backdrop-filter:blur(6px);margin:0 -6px 14px;padding:8px 6px 0;border-bottom:1px solid var(--line)}
.lab-stepper .st-line{margin:0 0 6px;font-size:15px;color:var(--ink);line-height:1.35}
.lab-stepper .st-line b{color:var(--navy)}
.st-chips{list-style:none;margin:0;padding:0 0 8px;display:flex;flex-wrap:wrap;gap:6px}
.st-chip{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:4px 12px 4px 5px;border-radius:99px;border:1px solid var(--line);background:#fff;color:var(--navy);font:700 14px/1.1 var(--f);cursor:pointer}
.st-chip .n{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--bg);border:1px solid var(--line);font-size:13px}
.st-chip:hover{border-color:var(--teal2);background:var(--teall)}
.st-chip.past .n{background:var(--teall);border-color:var(--teal2)}
.st-chip.done .n{background:var(--teal);border-color:var(--teal);color:#fff}
.st-chip[aria-current=step]{background:var(--navy);border-color:var(--navy);color:#fff}
.st-chip[aria-current=step] .n{background:#fff;color:var(--navy);border-color:#fff}
.st-chip:focus-visible,.step-h:focus-visible,.step-nav .cta:focus-visible,.finish-links a:focus-visible,.lab-topline a:focus-visible{outline:3px solid var(--coral);outline-offset:2px}
.st-chip .sr,.lab-stepper .sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.st-bar{height:5px;background:var(--line);border-radius:3px;overflow:hidden;margin:0 0 -1px}
.st-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--teal2),var(--coral));transition:width .25s ease}

/* One step at a time */
.lab-step[hidden]{display:none!important}
.step-head{margin:4px 0 12px}
.step-kick{margin:0;color:var(--coralD);font-weight:800;font-size:12.5px;text-transform:uppercase;letter-spacing:.06em}
.step-h{margin:.1em 0 0;font-size:clamp(24px,2.6vw,30px);color:var(--navy);outline:none}
.step-h:focus{outline:none}
.has-steps .lab-step .panel{margin-bottom:16px}
.has-steps .lab-step .panel > h2 .hnum{display:none}
.has-steps .step-overview .panel > h2,.has-steps .step-files .panel > h2,.has-steps .step-do .panel > h2,.has-steps .step-prompts .panel > h2,.has-steps .step-quiz .panel > h2{display:none}
.has-steps .step-watch .panel > h2{font-size:19px}
.has-steps .lab-step .clarity-brief,.has-steps .lab-step .prompt-layer-card,.has-steps .lab-step .library-evidence,.has-steps .lab-step .safe-library-gate{max-width:none;margin:0 0 16px}
.has-steps .step-safe .safe-library-gate > .kick,.has-steps .step-safe .safe-library-gate > h2{display:none}
.has-steps .prompt-clarity-note.dup-note{display:none}
.has-steps .pathnote{margin-bottom:14px}

/* Course pace notice: compact, above the steps */
.has-steps .lab-gate-slot:empty{display:none}
.has-steps .lab-gate-slot .course-pace-gate{margin:0 0 14px;padding:14px 18px}
.has-steps .lab-gate-slot .course-pace-gate h2{font-size:18px}
.has-steps .lab-gate-slot .course-pace-gate p:last-child{margin-top:10px}

/* Back / Next */
.step-nav{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin:22px 0 8px;padding-top:16px;border-top:1px solid var(--line)}
.step-nav .cta{min-height:48px;padding:12px 20px;font-size:16px}
.step-nav .step-next,.step-nav .step-today{margin-left:auto}
.step-nav .step-wait{margin:0 0 0 auto}

/* Finish */
.finish-links{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:4px 0 16px}
.finish-links .cta{text-decoration:none;min-height:48px;display:inline-flex;align-items:center}
.finish-links .prev-lab{font-size:14px;color:var(--mut)}
.lab-instructor{margin:18px 0 0;border:1px dashed var(--mut);border-radius:12px;background:#fff;padding:10px 14px}
.lab-instructor > summary{cursor:pointer;font-weight:800;color:var(--navy);min-height:32px;display:flex;align-items:center}
.lab-instructor .lab-delivery-loop{margin:10px 0 0;max-width:none}


@media(max-width:640px){
  .lab-stepper{margin:0 -14px 12px;padding:6px 14px 0}
  .lab-stepper .st-line{font-size:14px}
  .st-chips{gap:5px;flex-wrap:nowrap}
  .st-chip{padding:3px;min-height:34px;flex:0 0 auto}
  .st-chip .t{display:none}
  .st-chip .n{width:28px;height:28px}
  .step-nav .cta{flex:1 1 100%;justify-content:center;text-align:center}
  .step-nav .step-back{order:2}
  .step-nav .step-back .lbl{display:inline}
  .finish-links .cta{flex:1 1 100%;justify-content:center}
}
@media print{.lab-stepper,.step-nav{display:none!important}.lab-step[hidden]{display:block!important}}
.has-steps .lab-gate-slot .course-pace-gate{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 16px;align-items:center}
.has-steps .lab-gate-slot .course-pace-gate > *{grid-column:1}
.has-steps .lab-gate-slot .course-pace-gate p:not(.kick){font-size:14px}
.has-steps .lab-gate-slot .course-pace-gate p:last-child{grid-column:2;grid-row:1 / span 3;margin:0}
@media(max-width:640px){.has-steps .lab-gate-slot .course-pace-gate{display:block}.has-steps .lab-gate-slot .course-pace-gate p:last-child{margin-top:10px}}
/* One-page labs (steps.js ONE_PAGE): all steps visible, chips jump to sections */
.one-page .step-nav{display:none!important}
.one-page .lab-step{margin-bottom:28px;scroll-margin-top:150px}
.one-page .lab-step + .lab-step{padding-top:20px;border-top:2px solid var(--line)}