/* Northlight LongevityOne system: light paper technical. Warm paper sheet inside a dark field,
   hairlines, bracket corners, one accent, mono for the machine layer. */

/* ---------- tokens ---------- */
:root{
  --field:#191714;
  --paper:#F3EFE7;
  --sheet:#FBF9F5;
  --tint:#ECE7DC;
  --ink:#191714;
  --ink-2:#55514A;
  --ink-3:#6B665C;
  --rule:#DCD6C8;
  --rule-2:#EAE5DA;
  --accent:#17505E;
  --accent-wash:#E6EDEE;

  --sans:"Instrument Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --pad:20px;
  --t:110ms;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--field);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.5;
  font-synthesis-weight:none;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
fieldset{border:0;min-width:0}
a{color:inherit}
button{font:inherit;color:inherit}

/* ---------- utilities ---------- */
.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}
.skip{position:absolute;left:-9999px;top:0;z-index:20;background:var(--accent);color:#fff;padding:12px 16px;font-size:14px}
.skip:focus{left:8px;top:8px}

:where(a,button,summary,input,[role=tab]):focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:1px;
}

/* ---------- sheet ---------- */
.sheet{
  background:var(--paper);
  background-image:repeating-linear-gradient(45deg,rgba(25,23,20,.014) 0 1px,transparent 1px 9px);
  margin:6px;
  border-radius:2px;
  overflow:hidden;
}
.wrap{padding-left:var(--pad);padding-right:var(--pad);max-width:1380px;margin:0 auto}

/* ---------- masthead ---------- */
.masthead{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:16px;padding-bottom:16px;
  border-bottom:1px solid var(--rule);
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{flex:0 0 auto}
.brand-name{display:block;font-size:15px;font-weight:600;letter-spacing:-.01em;line-height:1.1}
.brand-sub{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);margin-top:3px}
.nav{display:flex;gap:24px;align-items:center}
.nav a:not(.nav-cta){display:none}
.nav a{font-size:14px;text-decoration:none;color:var(--ink-2);padding:6px 0;border-bottom:1px solid transparent}
.nav a:hover{color:var(--ink);border-bottom-color:var(--accent)}
.nav .nav-cta{color:var(--ink);font-weight:500;border-bottom-color:var(--accent);white-space:nowrap;font-size:13px}

/* ---------- type ---------- */
h1{
  font-size:clamp(32px,8.4vw,62px);
  line-height:1.02;
  letter-spacing:-.028em;
  font-weight:500;
  max-width:16ch;
  text-wrap:balance;
}
h2{font-size:clamp(23px,4.4vw,36px);line-height:1.08;letter-spacing:-.022em;font-weight:500;max-width:20ch;text-wrap:balance}
h3{font-size:18px;line-height:1.2;letter-spacing:-.012em;font-weight:500}
.lede{font-size:clamp(16px,2.1vw,19px);line-height:1.45;color:var(--ink-2);max-width:44ch;margin-top:18px}
.note{font-size:13px;line-height:1.45;color:var(--ink-3);max-width:52ch}
.label{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
.link{display:inline-block;color:var(--accent);text-decoration:none;border-bottom:1px solid var(--accent);padding:3px 0;font-size:14px;line-height:1.3}
.link:hover{background:var(--accent-wash)}

/* ---------- section frame ---------- */
.section{padding-top:52px;padding-bottom:52px;border-top:1px solid var(--rule)}
.sec-head{display:flex;flex-direction:column;gap:14px;margin-bottom:28px}
.sec-index{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}

/* ---------- hero ---------- */
.hero{padding-top:44px;padding-bottom:44px}
.hero-grid{display:grid;gap:36px}

/* the glance plate: price and the shape of the year, before any reading */
.glance{position:relative;background:var(--sheet);border:1px solid var(--rule);padding:20px 18px 22px}
.glance::before,.glance::after{content:"";position:absolute;width:10px;height:10px;border:1px solid var(--accent);pointer-events:none}
.glance::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.glance::after{bottom:-1px;right:-1px;border-left:0;border-top:0}
.glance-rows{margin-top:12px;border-top:1px solid var(--rule)}
.glance-rows li{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--rule-2)}
.glance-rows li span{font-size:15px}
.glance-rows li b{font-family:var(--mono);font-size:19px;font-weight:400;letter-spacing:-.01em}
.glance-label-2{margin-top:22px}
.glance-year{margin-top:12px;border-top:1px solid var(--rule)}
.glance-year li{display:grid;grid-template-columns:26px 1fr auto;align-items:baseline;gap:10px;padding:9px 0;border-bottom:1px solid var(--rule-2)}
.glance-year li:last-child{border-bottom:0}
.gn{font-family:var(--mono);font-size:11px;color:var(--accent)}
.gm{font-size:14px;line-height:1.25}
.gw{font-family:var(--mono);font-size:11px;color:var(--ink-2);text-align:right;white-space:nowrap}

/* spec beside its image slot */
.split{display:grid;gap:34px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.facts{display:flex;flex-wrap:wrap;gap:6px;margin-top:26px}
.fact{
  font-family:var(--mono);font-size:11px;letter-spacing:.02em;color:var(--ink-2);
  border:1px solid var(--rule);padding:6px 10px;background:var(--sheet);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:0 20px;font-size:15px;font-weight:500;
  text-decoration:none;border:1px solid var(--accent);
  transition:background-color var(--t) linear,color var(--t) linear;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#0F3B46}
.btn-ghost{background:transparent;color:var(--accent)}
.btn-ghost:hover{background:var(--accent-wash)}

/* ---------- plates (image direction slots) ---------- */
.plate{border:1px solid var(--rule)}
.plate-box{
  position:relative;aspect-ratio:3/2;background:var(--tint);
  background-image:repeating-linear-gradient(45deg,rgba(25,23,20,.05) 0 1px,transparent 1px 10px);
}
.plate-box::before,.plate-box::after{
  content:"";position:absolute;width:12px;height:12px;border:1px solid var(--ink-3);
}
.plate-box::before{top:10px;left:10px;border-right:0;border-bottom:0}
.plate-box::after{bottom:10px;right:10px;border-left:0;border-top:0}
.plate figcaption{
  display:flex;justify-content:space-between;gap:12px;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ink-3);padding:9px 10px;border-top:1px solid var(--rule);background:var(--sheet);
}

/* ---------- tier cards ---------- */
.tiers{display:grid;gap:12px}
.tier{
  background:var(--sheet);border:1px solid var(--rule);padding:20px 18px 22px;
  box-shadow:inset 0 0 0 0 var(--accent);
  transition:box-shadow var(--t) linear;
}
.tier[aria-current="true"]{box-shadow:inset 3px 0 0 0 var(--accent)}
.tier-name{font-size:17px;font-weight:600;letter-spacing:-.01em}
.tier-price{display:block;font-family:var(--mono);font-size:30px;letter-spacing:-.02em;margin-top:10px;line-height:1}
.tier[aria-current="true"] .tier-price{color:var(--accent)}
.tier-unit{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);margin-top:8px}
.tier-inc{margin-top:16px;padding-top:14px;border-top:1px solid var(--rule-2);display:grid;gap:7px}
.tier-inc li{font-size:14px;color:var(--ink-2);padding-left:16px;position:relative;line-height:1.35}
.tier-inc li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:1px;background:var(--accent)}

/* ---------- programmes strip ---------- */
.prog{margin-top:22px;border-top:1px solid var(--rule);padding-top:18px;display:grid;gap:14px}
.prog-list{display:flex;flex-wrap:wrap;gap:6px}
.prog-list li{font-size:13px;border:1px solid var(--rule);background:var(--sheet);padding:6px 10px}
.prog-price{font-family:var(--mono);font-size:17px}

/* =========================================================
   THE INSTRUMENT
   ========================================================= */
.instr{margin-top:6px}

/* tier switch: enhancement only, hidden when scripting is off */
.tier-switch{display:none}
.js .tier-switch{display:block;margin-bottom:26px}
.ts-legend{display:block;margin-bottom:9px}
.ts-opts{display:grid;grid-template-columns:1fr;gap:0;border:1px solid var(--rule);background:var(--sheet)}
.ts-opt{
  position:relative;display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  min-height:48px;padding:11px 14px;cursor:pointer;
  border-bottom:1px solid var(--rule);
  transition:background-color var(--t) linear,color var(--t) linear;
}
.ts-opt:last-child{border-bottom:0}
.ts-opt input{position:absolute;opacity:0;width:1px;height:1px;margin:0}
.ts-name{font-size:15px;font-weight:500}
.ts-price{font-family:var(--mono);font-size:15px;color:var(--ink-2)}
.ts-opt:hover{background:var(--accent-wash)}
.ts-opt:has(input:checked){background:var(--accent);color:#fff}
.ts-opt:has(input:checked) .ts-price{color:#D7E4E7}
.ts-opt:has(input:focus-visible){outline:2px solid var(--accent);outline-offset:2px}
/* engines without :has() still get a state and a focus ring */
@supports not selector(:has(*)){
  .ts-opt input:checked ~ .ts-name{color:var(--accent);font-weight:600}
  .ts-opt input:checked ~ .ts-price{color:var(--accent)}
  .ts-opt input:focus-visible ~ .ts-name{outline:2px solid var(--accent);outline-offset:3px}
}

/* year scale */
.scale{padding:0 8px;margin-bottom:22px}
.scale-line{position:relative;height:26px;border-bottom:1px solid var(--ink-3)}
.tick{position:absolute;bottom:0;width:1px;height:5px;background:var(--rule);transform:translateX(-50%)}
.tick.major{height:9px;background:var(--ink-3)}
.smark{position:absolute;bottom:0;width:1px;height:16px;background:var(--ink-3);transform:translateX(-50%)}
.smark::after{content:"";position:absolute;top:-4px;left:-2px;width:5px;height:5px;background:var(--paper);border:1px solid var(--ink-3);border-radius:50%}
.smark[data-on="true"]{background:var(--accent);height:24px}
.smark[data-on="true"]::after{background:var(--accent);border-color:var(--accent);top:-5px;left:-3px;width:7px;height:7px}
.scale-labels{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--ink-3);margin-top:6px}

/* stations */
.stations{position:relative;display:grid;gap:0}
.stations::before{content:"";position:absolute;left:8px;top:14px;bottom:14px;width:1px;background:var(--rule)}
.station{position:relative}
.st{
  position:relative;display:grid;grid-template-columns:18px 1fr auto;align-items:center;gap:12px;
  width:100%;text-align:left;text-decoration:none;color:inherit;background:none;border:0;
  border-bottom:1px solid var(--rule-2);
  min-height:56px;padding:12px 0;cursor:pointer;
  transition:background-color var(--t) linear;
}
.stations li:last-child .st{border-bottom:0}
.st:hover{background:var(--accent-wash)}
.st-dot{
  width:9px;height:9px;border:1px solid var(--ink-3);border-radius:50%;
  background:var(--paper);margin-left:4px;
  transition:background-color var(--t) linear,border-color var(--t) linear;
}
.st-n{font-family:var(--mono);font-size:11px;color:var(--ink-3);display:block}
.st-name{font-size:15px;font-weight:500;letter-spacing:-.01em;line-height:1.25;display:block;margin-top:2px}
.st-when{font-family:var(--mono);font-size:11px;color:var(--ink-2);text-align:right;white-space:nowrap}
.st[aria-selected="true"]{background:var(--accent-wash)}
.st[aria-selected="true"] .st-dot{background:var(--accent);border-color:var(--accent)}
.st[aria-selected="true"] .st-name{color:var(--accent)}

/* stage not sold in the selected tier */
.instr[data-tier="foundation"] .station[data-from="continuous"] .st-name,
.instr[data-tier="foundation"] .station[data-from="continuous"] .st-when{color:var(--ink-3)}
.instr[data-tier="foundation"] .station[data-from="continuous"] .st-dot{border-style:dashed;background:var(--paper)}
.instr[data-tier="foundation"] .station[data-from="continuous"] .st[aria-selected="true"] .st-name{color:var(--accent)}

/* readout */
.readout{margin-top:20px;border:1px solid var(--rule);background:var(--sheet);position:relative}
.readout::before,.readout::after{content:"";position:absolute;width:10px;height:10px;border:1px solid var(--accent);pointer-events:none}
.readout::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.readout::after{bottom:-1px;right:-1px;border-left:0;border-top:0}
.js .panels{display:grid}
.js .panels>.panel{grid-area:1 / 1}
.js .panels>.panel[data-active="false"]{visibility:hidden;pointer-events:none}
.panel{padding:20px 18px 22px;border-top:1px solid var(--rule-2)}
.panels>.panel:first-child{border-top:0}
.js .panels>.panel{border-top:0}
.panel-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 12px}
.panel-n{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.08em}
.panel h3{margin-right:auto}
.panel-meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.meta{font-family:var(--mono);font-size:11px;color:var(--ink-2);border:1px solid var(--rule);background:var(--paper);padding:5px 9px}
.meta.tier-meta{border-color:var(--accent);color:var(--accent)}
.panel-grid{display:grid;gap:22px;margin-top:20px;padding-top:18px;border-top:1px solid var(--rule-2)}
.panel-grid h4{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);font-weight:400;margin-bottom:10px}

/* measure chips */
.chips{display:grid;gap:6px}
.chip{display:flex;align-items:center;gap:9px;font-size:13.5px;line-height:1.3;color:var(--ink)}
.chip .mk{flex:0 0 auto;width:8px;height:8px;border:1px solid var(--accent);background:var(--accent)}
.chip .state{margin-left:auto;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);white-space:nowrap}
.chip[data-state="reviewed"] .mk{background:transparent}
.chip[data-state="none"]{color:var(--ink-3)}
.chip[data-state="none"] .mk{background:transparent;border-color:var(--rule)}

/* leave-with list */
.leave{display:grid;gap:8px}
.leave li{font-size:14px;line-height:1.35;color:var(--ink-2);padding-left:16px;position:relative}
.leave li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:1px;background:var(--accent)}

/* ---------- measurement matrix ---------- */
.matrix-scroll{overflow-x:auto;border:1px solid var(--rule);background:var(--sheet)}
table.matrix{border-collapse:collapse;width:100%;min-width:320px;font-size:13px}
table.matrix caption{text-align:left;padding:12px 12px 0;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
table.matrix th,table.matrix td{border-bottom:1px solid var(--rule-2);padding:9px 6px;text-align:center}
table.matrix thead th{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--ink-3);font-weight:400;border-bottom:1px solid var(--rule);white-space:nowrap}
table.matrix tbody th{text-align:left;font-weight:400;font-size:13px;padding-left:12px;min-width:140px}
table.matrix tbody tr:last-child th,table.matrix tbody tr:last-child td{border-bottom:0}
.mk-cell{display:inline-block;width:9px;height:9px;border:1px solid var(--accent);background:var(--accent)}
td[data-state="reviewed"] .mk-cell{background:transparent}
td[data-state="none"] .mk-cell{border-color:var(--rule);background:transparent}
table.matrix td[data-col].on,table.matrix thead th[data-col].on{background:var(--accent-wash)}
.legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:14px}
.legend li{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-2)}

/* ---------- spec rows ---------- */
.spec{border-top:1px solid var(--rule)}
.spec-row{display:grid;grid-template-columns:1fr;gap:2px;padding:13px 0;border-bottom:1px solid var(--rule-2)}
.spec dt{font-family:var(--mono);font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3)}
.spec dd{font-size:14.5px;color:var(--ink);line-height:1.4}

/* ---------- excluded ---------- */
.excl{display:grid;gap:0;border-top:1px solid var(--rule)}
.excl li{display:flex;align-items:flex-start;gap:12px;font-size:14.5px;color:var(--ink-2);padding:12px 0;border-bottom:1px solid var(--rule-2);line-height:1.35}
.excl li::before{content:"";flex:0 0 auto;width:9px;height:9px;border:1px solid var(--ink-3);margin-top:5px}

/* ---------- counters ---------- */
.counts{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);margin-top:26px}
.counts div{background:var(--paper);padding:14px 14px 16px}
.counts b{display:block;font-family:var(--mono);font-size:26px;font-weight:400;letter-spacing:-.02em;line-height:1}
.counts span{display:block;font-size:12.5px;color:var(--ink-2);margin-top:7px;line-height:1.3}

/* ---------- book ---------- */
.book{background:var(--sheet);border:1px solid var(--rule);padding:22px 18px 24px}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--rule);padding-top:22px;padding-bottom:26px;display:flex;flex-wrap:wrap;gap:12px 24px;align-items:baseline;justify-content:space-between}
.foot p{font-size:13px;color:var(--ink-2)}
.foot-nav{display:flex;flex-wrap:wrap;gap:18px}
.foot-nav a{font-size:13px;color:var(--ink-2);text-decoration:none;border-bottom:1px solid transparent}
.foot-nav a:hover{border-bottom-color:var(--accent);color:var(--ink)}
.foot .id{font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:var(--ink-3)}

/* =========================================================
   >= 640px
   ========================================================= */
@media (min-width:640px){
  :root{--pad:34px}
  .sheet{margin:10px}
  .tiers{grid-template-columns:repeat(3,1fr)}
  .counts{grid-template-columns:repeat(4,1fr)}
  .spec-row{grid-template-columns:200px 1fr;gap:20px;align-items:baseline}
  .panel-grid{grid-template-columns:1.25fr 1fr;gap:34px}
  .panel{padding:24px 24px 26px}
  .ts-opts{grid-template-columns:repeat(3,1fr)}
  .ts-opt{border-bottom:0;border-right:1px solid var(--rule);flex-direction:column;align-items:flex-start;justify-content:center;gap:4px}
  .ts-opt:last-child{border-right:0}
  .section{padding-top:72px;padding-bottom:72px}
  .hero{padding-top:64px;padding-bottom:64px}
  .sec-head{flex-direction:row;gap:44px;align-items:baseline}
  .sec-index{flex:0 0 130px}
  .sec-head-body{flex:1 1 auto;display:grid;gap:14px}
}

/* =========================================================
   >= 1000px  ·  the rule turns horizontal
   ========================================================= */
@media (min-width:1000px){
  :root{--pad:56px}
  body{font-size:17px}
  .nav a:not(.nav-cta){display:inline-block}
  .nav .nav-cta{font-size:14px}
  .section{padding-top:96px;padding-bottom:96px}
  .hero{padding-top:92px;padding-bottom:84px}
  .sec-index{flex:0 0 190px}

  .stations{grid-template-columns:repeat(5,1fr);gap:0}
  .stations::before{left:0;right:0;top:5px;bottom:auto;width:auto;height:1px}
  .st{
    grid-template-columns:1fr;align-items:start;gap:0;
    border-bottom:0;border-right:1px solid var(--rule-2);
    padding:0 18px 16px 0;min-height:0;
  }
  .stations li:last-child .st{border-right:0}
  .st-dot{position:relative;margin:0 0 16px 0;top:1px}
  .st-when{text-align:left;margin-top:8px}
  .st-name{margin-top:5px;max-width:14ch}
  .st:hover,.st[aria-selected="true"]{background:none}
  .st[aria-selected="true"] .st-name{color:var(--accent)}
  .st[aria-selected="true"]::after{content:"";position:absolute;left:0;top:5px;width:calc(100% - 18px);height:1px;background:var(--accent)}
  .readout{margin-top:0;border-top:0}
  .panel{padding:30px 30px 32px}
  .panel-grid{grid-template-columns:1.3fr 1fr;gap:48px}
  .chips{grid-template-columns:1fr;gap:7px}
  table.matrix tbody th{min-width:230px}
}

@media (min-width:1240px){
  .instr-2col{display:grid;grid-template-columns:1fr;gap:0}
}


/* tier readout chip is part of the switch, so it only exists when scripting does */
.tier-meta{display:none}
.js .tier-meta{display:inline-block}

/* ---------- panel rail: position in the sequence, and the way forward ---------- */
.panel{display:flex;flex-direction:column}
.rail{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--rule-2);
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:10px 18px;
}
.js .rail{margin-top:auto}
.rail-pos{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
.rail-next{
  font-size:14px;color:var(--accent);text-decoration:none;
  border-bottom:1px solid var(--accent);padding-bottom:2px;
  transition:background-color var(--t) linear;
}
.rail-next:hover{background:var(--accent-wash)}
.panel-grid{margin-bottom:22px}

/* ---------- enhancement only copy ---------- */
.js-only{display:none}
.js .js-only{display:block}

@media (min-width:640px){
  /* the switch is a control, not a banner */
  .ts-opts{max-width:780px}
}
@media (min-width:1000px){
  /* station names hold two lines so the time labels align across the axis */
  .st-name{min-height:38px}
  .panel-grid{max-width:1160px}
}

@media (min-width:640px){
  .chips-wide{grid-auto-flow:column;grid-template-rows:repeat(5,auto);grid-template-columns:repeat(2,1fr);gap:8px 28px;max-width:900px}
}
@media (min-width:1000px){
  .hero-grid{grid-template-columns:minmax(0,1fr) 400px;gap:72px;align-items:start}
  .glance{padding:24px 22px 26px}
  .split{grid-template-columns:minmax(0,1fr) 480px;gap:48px;align-items:start}
}

/* matrix and chips read as instruments, not stretched grids */
table.matrix thead th:first-child{text-align:left;padding-left:12px}
@media (min-width:1000px){
  .matrix-scroll{max-width:980px}
  .panel .chips{max-width:460px}
}

/* ---------- motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}