/* ===========================================================================
   Datum Quality Network — shared styles for the registration pages.
   Colour and type tokens mirror site/index.html. Keep the two identical.
   Layout concept: the engineering drawing sheet — hairline rules, a mono
   annotation layer, GD&T datum triangles as the structural marker.
   =========================================================================== */
:root{
  --paper:#FFFFFF;
  --surface:#FFFFFF;
  --surface-2:#F5F0FF;
  --ink:#27138B;
  --ink-2:#4B3F8F;
  --ink-3:#6D64A3;
  --rule:#E4DDF7;
  --rule-strong:#C5B9EA;
  --accent:#CDB0FF;
  --accent-ink:#27138B;
  --accent-wash:#F3ECFF;
  --on-accent:#27138B;
  --focus:#27138B;
  /* Palette: Modern Tech & Precision. Midnight Blue, Violet, Crisp White.
     Violet is decorative on white (1.9:1); text and focus use Midnight (13.5:1). */
  --brand:#27138B;
  --brand-violet:#CDB0FF;
  --brand-white:#FFFFFF;
  --sev-critical:#B23526;
  --sev-major:#C2551F;
  --sev-major-ink:#9A4413;
  --sev-minor:#5E6E7A;
  --sev-obs:#6E767D;
  --err-wash:#FBEDEA;
  --ok:#2F6B4F;
  --ok-wash:#E6F1EB;

  --display:'Archivo','Helvetica Neue',Arial,sans-serif;
  --body:'IBM Plex Sans','Segoe UI',system-ui,sans-serif;
  --mono:'IBM Plex Mono','SFMono-Regular',Consolas,monospace;
  --max:1080px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#0E0835;
    --surface:#160D48;
    --surface-2:#1F145C;
    --ink:#F6F2FF;
    --ink-2:#D2C6F2;
    --ink-3:#A99DD8;
    --rule:#2C2070;
    --rule-strong:#463894;
    --accent:#CDB0FF;
    --accent-ink:#CDB0FF;
    --accent-wash:#24175F;
    --on-accent:#27138B;
    --focus:#CDB0FF;
    --sev-critical:#E0675A;
    --sev-major:#F08A4B;
    --sev-major-ink:#F5A06B;
    --sev-minor:#8C9AA4;
    --sev-obs:#8A9298;
    --err-wash:#2A1714;
    --ok:#6CC19A;
    --ok-wash:#14241C;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --paper:#0E0835;
  --surface:#160D48;
  --surface-2:#1F145C;
  --ink:#F6F2FF;
  --ink-2:#D2C6F2;
  --ink-3:#A99DD8;
  --rule:#2C2070;
  --rule-strong:#463894;
  --accent:#CDB0FF;
  --accent-ink:#CDB0FF;
  --accent-wash:#24175F;
  --on-accent:#27138B;
  --focus:#CDB0FF;
  --sev-critical:#E0675A;
  --sev-major:#F08A4B;
  --sev-major-ink:#F5A06B;
  --sev-minor:#8C9AA4;
  --sev-obs:#8A9298;
  --err-wash:#2A1714;
  --ok:#6CC19A;
  --ok-wash:#14241C;
  color-scheme:dark;
}

/* --- base --- */
*{box-sizing:border-box}
html{scroll-padding-top:96px;scroll-padding-bottom:140px;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--body);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
[hidden]{display:none!important}
h1,h2,h3{font-family:var(--display);margin:0;letter-spacing:-.02em;line-height:1.15;text-wrap:balance}
p{margin:0}
a{color:inherit}
ul,ol{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:20px}
@media(max-width:480px){.wrap{padding-inline:16px}}
.sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:-9999px;top:8px;z-index:100;background:var(--ink);color:var(--paper);padding:10px 14px;font-weight:600;text-decoration:none;border-radius:2px}
.skip:focus{left:16px}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}

.eyebrow{
  font-family:var(--mono);font-size:11px;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);
  display:flex;align-items:center;gap:9px;
}
.eyebrow::before{
  content:"";width:0;height:0;flex:none;
  border-left:5px solid transparent;border-right:5px solid transparent;
  border-top:7px solid var(--accent);
}

/* --- header --- */
header.site{
  position:sticky;top:0;z-index:50;
  padding-top:env(safe-area-inset-top,0px);
  background:var(--paper);
  border-bottom:1px solid var(--rule);
}
@supports (background:color-mix(in srgb,red 50%,blue)){
  header.site{
    background:color-mix(in srgb,var(--paper) 90%,transparent);
    backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  }
}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:10px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;min-height:44px}
.brand-name{font-family:var(--display);font-weight:700;font-size:16px;letter-spacing:-.01em;display:block}
.brand-sub{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);display:block;margin-top:-2px}
.exit{font-size:14px;color:var(--ink-2);text-decoration:none;min-height:44px;display:inline-flex;align-items:center;text-align:right}
.exit:hover{color:var(--accent-ink);text-decoration:underline;text-underline-offset:3px}

.preview-bar{background:var(--accent-wash);border-bottom:1px solid var(--rule);font-size:13.5px;line-height:1.5}
.preview-bar .wrap{padding-block:9px;display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
.preview-bar b{font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-ink);flex:none}

/* --- page head --- */
.reg{padding-block:34px 64px}
.reg-head{max-width:640px;margin-bottom:30px;display:flex;flex-direction:column;gap:12px}
/* Full-width Midnight band behind the page head (palette 2026-10-11). The shadow paints the
   band edge to edge; clip-path keeps it to the head's own height. Shadows add no scroll width. */
.reg-head{margin-top:-34px;padding-block:30px 34px;background:var(--brand);color:var(--brand-white);
  box-shadow:0 0 0 100vmax var(--brand);clip-path:inset(0 -100vmax)}
.reg-head .eyebrow{color:var(--brand-violet)}
.reg-head .eyebrow::before{border-top-color:var(--brand-violet)}
.reg-head .page-title{color:var(--brand-white)}
.reg-head .page-sub,.reg-head .crosslink{color:#E9E1FF}
.reg-head .crosslink a{color:var(--brand-white)}
.reg-head :focus-visible{outline-color:var(--brand-violet)}
.page-title{font-family:var(--display);font-weight:800;font-size:clamp(28px,5vw,40px);letter-spacing:-.03em;line-height:1.08;text-wrap:balance}
.page-sub{font-size:17px;color:var(--ink-2);line-height:1.5}
.crosslink{font-size:14px;color:var(--ink-2)}
.crosslink a,.inline-link{color:var(--accent-ink);font-weight:600;text-underline-offset:3px}

/* --- stepper --- */
.stepper{max-width:640px;margin-bottom:26px;display:flex;flex-direction:column;gap:10px}
.step-bar{list-style:none;padding:0;display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:4px}
.step-bar li{display:flex;flex-direction:column;gap:7px;min-width:0}
.step-bar .seg-line{height:4px;background:var(--rule-strong)}
.step-bar li.done .seg-line{background:var(--ink)}
.step-bar li[aria-current="step"] .seg-line{background:var(--accent)}
.step-bar .lbl{font-family:var(--mono);font-size:11.5px;letter-spacing:.04em;color:var(--ink-2)}
.step-bar li[aria-current="step"] .lbl{color:var(--ink);font-weight:600}
@media(max-width:719px){.step-bar .lbl{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}}
.draft-note{font-size:13px;color:var(--ink-2);display:flex;flex-wrap:wrap;gap:4px 10px;align-items:center}

/* --- screen layout: head / guide / body --- */
.screen{display:grid;grid-template-areas:"head" "guide" "body";grid-template-columns:minmax(0,1fr);gap:20px}
.s-head{grid-area:head;display:flex;flex-direction:column;gap:8px;max-width:640px}
.s-head h1{font-size:22px;font-weight:700;outline:none}
.s-head .intro{color:var(--ink-2);font-size:15.5px;line-height:1.55}
.s-body{grid-area:body;min-width:0;max-width:640px;display:flex;flex-direction:column;gap:26px}
@media(min-width:720px){.s-head h1{font-size:26px}}
@media(min-width:960px){
  .screen{
    grid-template-columns:minmax(0,640px) 300px;
    grid-template-areas:"head guide" "body guide";
    column-gap:56px;row-gap:24px;align-items:start;
  }
}

/* "Why we ask" guide */
.guide{grid-area:guide;border:1px solid var(--rule);background:var(--surface);border-radius:2px;font-size:14px;color:var(--ink-2);align-self:start}
.guide summary{
  min-height:44px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  cursor:pointer;list-style:none;font-family:var(--mono);font-size:11px;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);
}
.guide summary::-webkit-details-marker{display:none}
.guide summary::after{content:"+";font-size:17px;font-weight:500;letter-spacing:0}
.guide[open] summary::after{content:"\2212"}
.g-body{padding:0 16px 16px;display:flex;flex-direction:column;gap:12px;line-height:1.55}
.g-body b{color:var(--ink);font-weight:600;display:block;margin-bottom:2px}
@media(min-width:960px){
  .guide{position:sticky;top:96px}
  .guide summary{pointer-events:none;justify-content:flex-start;gap:9px}
  .guide summary::before{
    content:"";width:0;height:0;flex:none;
    border-left:5px solid transparent;border-right:5px solid transparent;border-top:7px solid var(--accent);
  }
  .guide summary::after,.guide[open] summary::after{content:none}
}

/* --- fields --- */
fieldset{border:0;margin:0;padding:0;min-width:0}
legend{padding:0}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.label,legend.label{font:600 16px/1.35 var(--body);color:var(--ink);display:block;margin-bottom:0}
fieldset > legend.label{margin-bottom:6px}
.label.sm{font-size:14px}
.opt{font:500 11px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);margin-left:8px;white-space:nowrap}
.hint{font-size:14px;line-height:1.5;color:var(--ink-2);overflow-wrap:anywhere}
fieldset > .hint{margin:-2px 0 10px}
.input,.select,.textarea{
  width:100%;min-height:48px;padding:11px 14px;
  font:400 16px/1.4 var(--body);color:var(--ink);
  background:var(--surface);border:1px solid var(--ink-3);border-radius:2px;
  -webkit-appearance:none;appearance:none;
}
.input.sm{width:110px}
.textarea{min-height:150px;resize:vertical;line-height:1.55}
.input:hover,.select:hover,.textarea:hover{border-color:var(--ink-2)}
.input:focus,.select:focus,.textarea:focus{outline:2px solid transparent;border-color:var(--focus);box-shadow:0 0 0 2px var(--focus)}
.select-wrap{position:relative}
.select{padding-right:44px;cursor:pointer}
.select-wrap::after{
  content:"";position:absolute;right:17px;top:50%;width:8px;height:8px;pointer-events:none;
  border-right:2px solid var(--ink-2);border-bottom:2px solid var(--ink-2);transform:translateY(-70%) rotate(45deg);
}
.input[aria-invalid="true"],.select[aria-invalid="true"],.textarea[aria-invalid="true"]{
  border-color:var(--sev-critical);border-left-width:4px;background:var(--err-wash);
}
.is-invalid{border-left:4px solid var(--sev-critical);padding-left:14px}
.field-err{display:flex;gap:8px;align-items:flex-start;font:600 14px/1.45 var(--body);color:var(--sev-critical)}
.field-err::before{
  content:"!";content:"!" / "";flex:none;width:18px;height:18px;margin-top:1px;display:inline-grid;place-items:center;
  border:1.5px solid currentColor;border-radius:50%;font:700 11px/1 var(--mono);
}
.counter{font:500 12px var(--mono);color:var(--ink-2);text-align:right;font-variant-numeric:tabular-nums}
.counter.over{color:var(--sev-critical)}
.row2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media(max-width:420px){.row2.stack-sm{grid-template-columns:1fr}}

/* password */
.pw-wrap{position:relative}
.pw-wrap .input{padding-right:86px}
.pw-toggle{
  position:absolute;right:2px;top:2px;height:44px;min-width:72px;padding:0 12px;
  background:transparent;border:0;border-left:1px solid var(--rule);
  font:600 13px var(--body);color:var(--ink-2);cursor:pointer;
}
.pw-toggle:hover{color:var(--accent-ink)}

/* custom radio + checkbox */
.ctl{
  -webkit-appearance:none;appearance:none;flex:none;margin:2px 0 0;
  width:22px;height:22px;border:2px solid var(--ink-2);background:var(--surface);
  display:inline-grid;place-items:center;cursor:pointer;
}
.ctl[type="radio"]{border-radius:50%}
.ctl[type="checkbox"]{border-radius:2px}
.ctl:checked{border-color:var(--ink)}
.ctl[type="radio"]:checked::after{content:"";width:10px;height:10px;border-radius:50%;background:var(--ink)}
.ctl[type="checkbox"]:checked{background:var(--ink)}
.ctl[type="checkbox"]:checked::after{
  content:"";width:6px;height:11px;border:solid var(--paper);border-width:0 2px 2px 0;
  transform:translateY(-1px) rotate(45deg);
}

/* option cards (radio / checkbox rows) */
.options{display:grid;gap:8px}
.options.c2{grid-template-columns:repeat(2,minmax(0,1fr))}
.options.c4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:560px){.options.c4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:380px){.options.c2.stack-xs{grid-template-columns:1fr}}
.opt-card{
  display:grid;grid-template-columns:22px minmax(0,1fr);gap:12px;align-items:start;
  min-height:48px;padding:12px 14px;border:1px solid var(--rule-strong);border-radius:2px;
  background:var(--surface);cursor:pointer;
}
.opt-card:hover{border-color:var(--ink-3)}
.opt-card:has(.ctl:checked){border-color:var(--ink);box-shadow:inset 3px 0 0 var(--accent)}
.opt-card b{display:block;font-weight:600;font-size:15.5px;line-height:1.35}
.opt-card .d{display:block;font-size:13.5px;color:var(--ink-2);line-height:1.45;margin-top:2px}

/* consents */
.consents{display:flex;flex-direction:column}
.consent{
  display:grid;grid-template-columns:22px minmax(0,1fr);gap:14px;padding:16px;
  border:1px solid var(--rule);background:var(--surface);margin-top:-1px;cursor:pointer;
}
.consent:first-of-type{margin-top:0}
.consent b{display:block;font:600 16px/1.35 var(--body)}
.consent .d{display:block;font-size:14px;line-height:1.5;color:var(--ink-2);margin-top:3px}
.consent .tag{font:600 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;margin-left:8px;white-space:nowrap}
.consent .tag.req{color:var(--accent-ink)}
.consent .tag.optl{color:var(--ink-2)}
.consent .conseq{display:block;font-size:13px;color:var(--ink-2);margin-top:6px;font-style:italic}

/* --- chips --- */
.chipset{display:flex;flex-direction:column;gap:14px}
.chip-filter .input{max-width:420px}
.chip-count{font:500 12px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);display:flex;gap:6px 14px;align-items:center;flex-wrap:wrap;min-height:24px}
.chip-group{display:flex;flex-direction:column;gap:8px}
.chip-group-title{font:600 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  min-height:44px;padding:8px 14px;display:inline-flex;align-items:center;gap:8px;text-align:left;
  font:500 15px/1.3 var(--body);color:var(--ink);background:var(--surface);
  border:1px solid var(--ink-3);border-radius:2px;cursor:pointer;
}
.chip:hover{border-color:var(--accent)}
.chip[aria-checked="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.chip[aria-checked="true"]::before{
  content:"";flex:none;width:5px;height:10px;border:solid currentColor;border-width:0 2px 2px 0;
  transform:translateY(-2px) rotate(45deg);margin-right:2px;
}
.chip[aria-disabled="true"]{opacity:.45;cursor:not-allowed;border-style:dashed}
.chip[aria-disabled="true"]:hover{border-color:var(--ink-3)}

/* --- ratings --- */
.rate-key{
  border:1px solid var(--rule);background:var(--surface-2);border-radius:2px;
  padding:14px 16px;display:grid;gap:8px;font-size:14px;color:var(--ink-2);line-height:1.5;
}
.rate-key p{display:grid;grid-template-columns:96px minmax(0,1fr);gap:10px}
.rate-key p b{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);padding-top:2px}
.rate-key .note{display:block;border-top:1px solid var(--rule);padding-top:9px;margin-top:2px;font-size:13px}
@media(max-width:420px){.rate-key p{grid-template-columns:1fr;gap:0}}
.rate-list{border:1px solid var(--rule-strong);border-radius:2px;background:var(--surface)}
.rate-row{padding:14px 16px;border-top:1px solid var(--rule);display:flex;flex-direction:column;gap:12px}
.rate-row:first-child{border-top:0}
.rate-name{font-weight:600;font-size:15.5px;display:flex;justify-content:space-between;align-items:baseline;gap:6px 12px;flex-wrap:wrap}
.unrated{font:600 11px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--accent-ink)}
.rate-fields{display:flex;flex-wrap:wrap;gap:12px 16px;align-items:flex-end}
.rate-fields > .seg-field{flex:1 1 100%}
.rate-fields > .f-wide{flex:1 1 220px}
.seg{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  border:1px solid var(--ink-3);border-radius:2px;overflow:hidden;background:var(--surface);
}
.seg.n4{grid-template-columns:repeat(4,minmax(0,1fr))}
.seg label{
  position:relative;display:flex;cursor:pointer;border-left:1px solid var(--rule-strong);
}
.seg label > span{
  flex:1;min-height:46px;display:flex;align-items:center;justify-content:center;text-align:center;
  padding:6px 4px;font:500 14px/1.2 var(--body);color:var(--ink-2);
}
.seg label:first-child{border-left:0}
.seg input{position:absolute;opacity:0;width:1px;height:1px}
.seg input:checked + span{background:var(--accent-wash);color:var(--ink);font-weight:600;box-shadow:inset 0 -3px 0 var(--accent)}
.seg input:focus-visible + span{outline:2px solid var(--focus);outline-offset:-3px}
@media(max-width:420px){
  .seg.n4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .seg.n4 label:nth-child(3){border-left:0}
  .seg.n4 label:nth-child(n+3){border-top:1px solid var(--rule-strong)}
}
.seg-field.is-invalid .seg{border-color:var(--sev-critical)}

/* --- notices --- */
.notice{
  display:grid;grid-template-columns:20px minmax(0,1fr);gap:12px;padding:12px 16px;
  border:1px solid var(--rule);border-left-width:4px;border-radius:2px;
  font-size:14.5px;line-height:1.55;color:var(--ink);
}
.notice::before{
  content:"i";content:"i" / "";width:20px;height:20px;margin-top:1px;display:grid;place-items:center;
  border:1.5px solid currentColor;border-radius:50%;font:700 11px/1 var(--mono);
}
.notice > div{min-width:0;display:flex;flex-direction:column;gap:6px}
.notice b.k{display:block;font:600 11px var(--mono);letter-spacing:.12em;text-transform:uppercase}
.notice.info{background:var(--surface-2);border-left-color:var(--ink-2)}
.notice.info::before,.notice.info b.k{color:var(--ink-2)}
.notice.warn{background:var(--accent-wash);border-left-color:var(--accent)}
.notice.warn::before{content:"!";content:"!" / "";color:var(--accent-ink)}
.notice.warn b.k{color:var(--accent-ink)}
.notice.err{background:var(--err-wash);border-left-color:var(--sev-critical)}
.notice.err::before{content:"!";content:"!" / "";color:var(--sev-critical)}
.notice.err b.k{color:var(--sev-critical)}
.notice.ok{background:var(--ok-wash);border-left-color:var(--ok)}
.notice.ok::before{content:"\2713";color:var(--ok)}
.notice ul{padding-left:18px;display:flex;flex-direction:column;gap:4px}
.notice a{color:inherit;font-weight:600;text-underline-offset:3px}
.err-summary{outline:none}
.err-summary:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.example{display:grid;gap:4px;font-size:13.5px}
.example span{display:grid;grid-template-columns:44px minmax(0,1fr);gap:8px}
.example i{font-style:normal;font:600 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;padding-top:2px}

/* --- review --- */
.rev{border:1px solid var(--rule-strong);background:var(--surface);border-radius:2px}
.rev + .rev{margin-top:-1px}
.rev-head{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:4px 8px 4px 16px;background:var(--surface-2);border-bottom:1px solid var(--rule);
  font:600 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);
}
.rev dl{display:grid;grid-template-columns:170px minmax(0,1fr);gap:10px 18px;padding:16px;margin:0}
.rev dt{font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);padding-top:3px}
.rev dd{margin:0;font-size:15px;color:var(--ink);min-width:0;overflow-wrap:anywhere}
.rev dd .muted{color:var(--ink-2)}
.rev dd .claimed{font:600 10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);border:1px solid var(--rule-strong);padding:1px 6px;margin-left:6px;white-space:nowrap}
.rev dd ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:3px}
@media(max-width:620px){.rev dl{grid-template-columns:1fr;gap:2px}.rev dd{margin-bottom:10px}}

/* --- success timeline --- */
.sheet{border:1px solid var(--rule-strong);background:var(--surface);border-radius:2px;padding:24px;display:flex;flex-direction:column;gap:18px;max-width:640px;overflow-wrap:anywhere}
@media(max-width:480px){.sheet{padding:18px}}
.done-mark{width:30px;height:30px;border-radius:50%;border:2px solid var(--ok);display:grid;place-items:center;color:var(--ok)}
.done-mark::after{content:"";width:7px;height:13px;border:solid currentColor;border-width:0 2.5px 2.5px 0;transform:translateY(-2px) rotate(45deg)}
.sheet h1{font-size:28px;font-weight:700;outline:none}
.sheet .lede{color:var(--ink-2);font-size:16px;line-height:1.55}
.timeline{list-style:none;padding:0;position:relative;display:flex;flex-direction:column;gap:20px}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;background:var(--rule-strong)}
.timeline li{position:relative;padding-left:30px;display:flex;flex-direction:column;gap:3px}
.timeline li::before{content:"";position:absolute;left:0;top:5px;width:12px;height:12px;background:var(--surface);border:2px solid var(--rule-strong)}
.timeline li.now::before{background:var(--accent);border-color:var(--accent)}
.timeline li.did::before{background:var(--ok);border-color:var(--ok)}
.timeline .when{font:600 10.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2)}
.timeline b{font-weight:600}
.timeline p{font-size:14.5px;color:var(--ink-2);line-height:1.55}
.share{border-top:1px solid var(--rule);padding-top:18px;display:flex;flex-direction:column;gap:10px}
.share h2{font-size:18px;font-weight:700}
.share p{font-size:14.5px;color:var(--ink-2)}
.copybox{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--rule);border-radius:2px;background:var(--paper)}
.copybox code{font-family:var(--mono);font-size:13px;word-break:break-all;min-width:0;flex:1 1 200px}

/* --- buttons + action bar --- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;
  font:600 16px var(--body);border:1px solid var(--ink);border-radius:2px;
  background:var(--ink);color:var(--paper);text-decoration:none;cursor:pointer;
  transition:background .15s,border-color .15s,color .15s;
}
.btn:hover{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--rule-strong)}
.btn.ghost:hover{background:transparent;border-color:var(--accent);color:var(--accent-ink)}
.btn[disabled]{background:var(--surface-2);color:var(--ink-2);border-color:var(--rule);cursor:not-allowed}
.link-btn{
  min-height:44px;padding:0 4px;background:none;border:0;cursor:pointer;
  font:600 14px var(--body);color:var(--accent-ink);text-decoration:underline;text-underline-offset:3px;
}
.link-btn.sm{min-height:40px;font-size:13.5px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

.actions{
  max-width:640px;margin-top:32px;padding-top:18px;border-top:1px solid var(--rule);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
}
.actions .spacer{flex:1}
.actions .bar-eyebrow{display:none}
@media(max-width:719px){
  .actions{
    position:sticky;bottom:0;z-index:40;margin-inline:-20px;margin-top:28px;
    padding:10px 20px calc(10px + env(safe-area-inset-bottom,0px));
    background:var(--paper);
    border-top:1px solid var(--rule-strong);
    display:grid;grid-template-columns:auto minmax(0,1fr);gap:6px 10px;
  }
  .actions .bar-eyebrow{display:block;grid-column:1/-1;font:600 10.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2)}
  .actions .spacer{display:none}
  .actions .btn{min-height:52px}
  .actions .bar-eyebrow{order:0}
  .actions > .btn.ghost:not(.primary){order:1;grid-column:1}
  .actions .btn.primary{order:2;grid-column:2}
  .actions .later{order:3;grid-column:1/-1;justify-self:center;min-height:36px}
}
@media(max-width:480px){.actions{margin-inline:-16px;padding-inline:16px}}
@supports (background:color-mix(in srgb,red 50%,blue)){
  @media(max-width:719px){
    .actions{background:color-mix(in srgb,var(--paper) 94%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
  }
}
/* Very short viewports (landscape phones, 400% zoom): don't pin bars over the content. */
@media(max-height:520px){header.site,.actions{position:static}}

/* --- footer --- */
footer.site{border-top:1px solid var(--rule);background:var(--surface-2)}
footer.site .wrap{padding-block:26px;display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;font-size:13px;color:var(--ink-2)}
footer.site p{max-width:60ch;line-height:1.6}

.honey{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* Windows High Contrast / forced colours: restore states that relied on backgrounds or shadows. */
@media(forced-colors:active){
  .seg input:checked + span{outline:3px solid Highlight;outline-offset:-4px}
  .chip[aria-checked="true"]{outline:3px solid Highlight;outline-offset:-3px}
  .ctl:checked{border-color:Highlight}
  .ctl[type="radio"]:checked::after{forced-color-adjust:none;background:Highlight}
  .ctl[type="checkbox"]:checked{forced-color-adjust:none;background:Highlight}
  .step-bar .seg-line,.timeline li::before,.done-mark{forced-color-adjust:none}
  .btn,.link-btn,.chip{border:1px solid ButtonText}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}