/* ============================================================================
   XILO — "Reference Standard" design system
   World: the pharmacopoeia monograph + the certificate of analysis.
   Two lines, two temperatures, one house:
     .line-clinic   telehealth  — spruce + teal, warmer, prose-led
     .line-research supply      — graphite + steel + amber, colder, data-led
   Faces: Libre Franklin (display/UI), Spectral (prose), Azeret Mono (data only)
   ========================================================================== */

/* ---------- tokens: light is the base, both themes defined at token level -- */
:root {
  /* house neutrals — green-biased cool paper, deliberately not cream */
  --paper:        #F2F5F3;
  --surface:      #FFFFFF;
  --sunk:         #E8EEEA;
  --ink:          #0E1512;
  --ink-2:        #3D4A44;
  --ink-3:        #5A6862; /* 4.97:1 on --sunk, the worst ground it sits on */
  --rule:         #CFDAD4;
  --rule-soft:    #E2EAE5;

  /* clinic line */
  --spruce:       #134E3A;
  --spruce-deep:  #0A2E22;
  --spruce-tint:  #E4EFE9;
  --teal:         #0C6E6D;
  --teal-tint:    #DDEDEC;

  /* research line */
  --graphite:     #1B2220;
  --graphite-2:   #2C3936;
  --steel:        #35617E;
  --steel-tint:   #E1EAF0;
  --amber:        #96590F;
  --amber-tint:   #F6EAD7;

  /* semantic — separate from accent by design */
  --warn:         #8E2A20;
  --warn-tint:    #F6E4E1;
  --ok:           #1C6446;

  /* per-line switches, reassigned by .line-* below */
  --accent:       var(--spruce);
  --accent-deep:  var(--spruce-deep);
  --accent-tint:  var(--spruce-tint);
  --data:         var(--teal);
  --data-tint:    var(--teal-tint);

  --f-display: 'Libre Franklin', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --f-body:    'Spectral', Georgia, 'Times New Roman', serif;
  --f-data:    'Azeret Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --shell: 1180px;
  --gut: clamp(20px, 4vw, 56px);
  --r-sm: 3px;
  --r-md: 6px;
  --shadow-1: 0 1px 2px rgba(14,21,18,.05), 0 2px 8px rgba(14,21,18,.04);
  --shadow-2: 0 2px 4px rgba(14,21,18,.06), 0 12px 32px rgba(14,21,18,.07);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:       #0C110F;
    --surface:     #131A18;
    --sunk:        #1A2320;
    --ink:         #E7EDEA;
    --ink-2:       #AFBDB7;
    --ink-3:       #829189;
    --rule:        #2A3733;
    --rule-soft:   #202B28;

    --spruce:      #6FBF9B;
    --spruce-deep: #0A2E22;
    --spruce-tint: #16302690;
    --teal:        #57BDBB;
    --teal-tint:   #10302F90;

    --graphite:    #0F1513;
    --graphite-2:  #1C2523;
    --steel:       #7FB0CE;
    --steel-tint:  #16283390;
    --amber:       #D9A05B;
    --amber-tint:  #2E220F90;

    --warn:        #E0817A;
    --warn-tint:   #33191790;
    --ok:          #63B58C;

    --shadow-1: 0 1px 2px rgba(0,0,0,.4), 0 2px 8px rgba(0,0,0,.28);
    --shadow-2: 0 2px 4px rgba(0,0,0,.45), 0 12px 32px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"] {
  --paper:       #0C110F;
  --surface:     #131A18;
  --sunk:        #1A2320;
  --ink:         #E7EDEA;
  --ink-2:       #AFBDB7;
  --ink-3:       #829189;
  --rule:        #2A3733;
  --rule-soft:   #202B28;

  --spruce:      #6FBF9B;
  --spruce-deep: #0A2E22;
  --spruce-tint: #16302690;
  --teal:        #57BDBB;
  --teal-tint:   #10302F90;

  --graphite:    #0F1513;
  --graphite-2:  #1C2523;
  --steel:       #7FB0CE;
  --steel-tint:  #16283390;
  --amber:       #D9A05B;
  --amber-tint:  #2E220F90;

  --warn:        #E0817A;
  --warn-tint:   #33191790;
  --ok:          #63B58C;

  --shadow-1: 0 1px 2px rgba(0,0,0,.4), 0 2px 8px rgba(0,0,0,.28);
  --shadow-2: 0 2px 4px rgba(0,0,0,.45), 0 12px 32px rgba(0,0,0,.35);
}

body.line-clinic {
  --accent: var(--spruce); --accent-deep: var(--spruce-deep);
  --accent-tint: var(--spruce-tint); --data: var(--teal); --data-tint: var(--teal-tint);
}
body.line-research {
  --accent: var(--steel); --accent-deep: var(--graphite);
  --accent-tint: var(--steel-tint); --data: var(--steel); --data-tint: var(--steel-tint);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
:focus-visible {
  outline: 2px solid var(--data);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Grid and flex items default to min-width:auto, so a descendant with an
   intrinsic minimum (the spec tables are min-width:560px) forces its whole
   column wider than the viewport instead of letting the table scroll.
   Every track owner below opts its children out of that automatic minimum. */
.split > *, .monohead > *, .defrow > *, .plans > *, .step > *,
.foot-grid > *, .masthead-in > *, .spec, .idcard, .reg > *, .topreg-in > * {
  min-width: 0;
}
.spec-scroll { max-width: 100%; }

.shell { max-width: var(--shell); margin-inline: auto; padding-inline: var(--gut); }
.shell-narrow { max-width: 780px; margin-inline: auto; padding-inline: var(--gut); }
.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--accent); color: #fff; padding: 12px 18px;
  font-family: var(--f-display); font-weight: 600; border-radius: 0 0 var(--r-md) 0;
}
.skip:focus { left: 0; }

/* ---------- type ---------- */
h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 650;
  line-height: 1.08;
  letter-spacing: -0.022em;
  text-wrap: balance;
  color: var(--ink);
}
h1 { font-size: clamp(38px, 5.2vw, 62px); }
h2 { font-size: clamp(28px, 3.4vw, 40px); }
h3 { font-size: clamp(19px, 1.9vw, 23px); letter-spacing: -0.015em; }
h4 { font-size: 17px; letter-spacing: -0.01em; }
p  { max-width: 68ch; }
.lede { font-size: clamp(18px, 1.9vw, 21px); color: var(--ink-2); max-width: 60ch; }
.prose > * + * { margin-top: 16px; }
.prose > h2 { font-size: clamp(21px, 2.3vw, 26px); }
.prose > h3 { font-size: clamp(17px, 1.7vw, 19px); }
.prose > h2 { margin-top: 46px; }
.prose > h3 { margin-top: 32px; }
.prose p, .prose li { color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li + li { margin-top: 8px; }
.link {
  color: var(--data);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.link:hover { text-decoration-thickness: 2px; }
.fine { font-size: 14px; line-height: 1.55; color: var(--ink-3); max-width: 76ch; }
.fine a { color: var(--ink-2); }

/* data voice — used only for measured values, identifiers, and table data */
.data, .val, .code {
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.label {
  font-family: var(--f-data);
  font-size: 11px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
}

/* ---------- header ---------- */
.masthead {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.masthead-in {
  max-width: var(--shell); margin-inline: auto; padding: 0 var(--gut);
  display: flex; align-items: center; gap: 28px; min-height: 66px;
}
.wordmark {
  font-family: var(--f-display); font-weight: 700; font-size: 19px;
  letter-spacing: -0.03em; text-decoration: none; color: var(--ink);
  display: inline-flex; align-items: center; gap: 9px; flex: none;
}
.wordmark .mk {
  width: 22px; height: 22px; border-radius: var(--r-sm);
  background: var(--accent); color: #fff;
  display: grid; place-items: center;
  font-size: 13px; font-weight: 700; line-height: 1;
}
.mainnav { display: flex; gap: 22px; margin-left: auto; align-items: center; }
/* :not(.btn) keeps this element+class selector from outranking .btn and
   repainting the nav CTA's label with the plain link colour. */
.mainnav a:not(.btn) {
  font-family: var(--f-display); font-size: 14.5px; font-weight: 500;
  text-decoration: none; color: var(--ink-2); padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.mainnav a:not(.btn):hover { color: var(--ink); }
.mainnav a:not(.btn)[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
.navtoggle {
  margin-left: auto; display: none; background: none; border: 1px solid var(--rule);
  border-radius: var(--r-sm); padding: 8px 13px; color: var(--ink);
  font-family: var(--f-display); font-size: 14px; font-weight: 600; cursor: pointer;
}
.mobilenav { display: none; border-bottom: 1px solid var(--rule); background: var(--surface); }
.mobilenav.open { display: block; }
.mobilenav a {
  display: block; padding: 13px var(--gut); text-decoration: none;
  color: var(--ink-2); font-family: var(--f-display); font-size: 15.5px;
  border-top: 1px solid var(--rule-soft);
}
@media (max-width: 860px) {
  .mainnav { display: none; }
  .navtoggle { display: block; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--f-display); font-size: 15.5px; font-weight: 600;
  padding: 13px 24px; border-radius: var(--r-md); text-decoration: none;
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
  cursor: pointer; transition: transform .18s cubic-bezier(.2,.7,.3,1), box-shadow .18s, background .18s;
}
/* In dark themes the accent is a light tint, so filled buttons take the dark
   ground as their label colour. Ghost buttons are excluded: they have no fill,
   so they always read from --ink. Scoping this to :not(.ghost) and keeping it
   inside the theme conditions is what stops a near-white label landing on a
   near-white ground in light mode. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .btn:not(.ghost) { color: var(--paper); }
}
:root[data-theme="dark"] .btn:not(.ghost) { color: var(--paper); }
.btn:hover { box-shadow: var(--shadow-2); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.ghost {
  background: transparent; color: var(--ink); border-color: var(--rule);
}
.btn.ghost:hover { border-color: var(--ink-3); box-shadow: var(--shadow-1); }
.btn.small { padding: 9px 17px; font-size: 14px; }
.btnrow { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
@media (prefers-reduced-motion: reduce) {
  .btn, .btn:hover { transform: none; transition: none; }
}

/* ---------- sections ---------- */
.band { padding: clamp(52px, 7vw, 92px) 0; }
.band.tight { padding: clamp(38px, 5vw, 60px) 0; }
.band.sunk { background: var(--sunk); }
.band.dark {
  background: var(--accent-deep);
  --ink: #F0F5F2; --ink-2: #B9CCC3; --ink-3: #91A79D;
  --rule: rgba(255,255,255,.16); --rule-soft: rgba(255,255,255,.09);
  --surface: rgba(255,255,255,.05);
  color: var(--ink);
}
.band.dark h1, .band.dark h2, .band.dark h3 { color: #F0F5F2; }
.band-head { max-width: 62ch; margin-bottom: 34px; }
.band-head p { margin-top: 14px; color: var(--ink-2); }

/* ---------- SIGNATURE: specification table ---------- */
.spec {
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
}
.spec-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  padding: 15px 20px;
  background: var(--sunk);
  border-bottom: 1px solid var(--rule);
}
.spec-head h3,
.spec-head .spec-title {
  font-size: 16px; letter-spacing: -0.01em; font-family: var(--f-display);
  font-weight: 650; color: var(--ink); line-height: 1.2;
}
.spec-scroll { overflow-x: auto; }
table.spec-table {
  width: 100%; border-collapse: collapse; min-width: 420px;
  font-family: var(--f-display); font-size: 14.5px;
}
table.spec-table th {
  font-family: var(--f-data); font-size: 10.5px; letter-spacing: .13em;
  text-transform: uppercase; color: var(--ink-3); font-weight: 500;
  text-align: left; padding: 11px 20px; border-bottom: 1px solid var(--rule);
  white-space: nowrap; background: var(--surface);
}
table.spec-table td {
  padding: 13px 20px; border-bottom: 1px solid var(--rule-soft);
  color: var(--ink-2); vertical-align: top;
}
table.spec-table tbody tr:last-child td { border-bottom: 0; }
table.spec-table td:first-child { color: var(--ink); font-weight: 550; }
table.spec-table td.v {
  font-family: var(--f-data); font-variant-numeric: tabular-nums;
  color: var(--ink); font-size: 13.5px;
}
table.spec-table tbody tr:hover td { background: var(--accent-tint); }

/* ---------- SIGNATURE: reference-range bar ---------- */
.range { display: grid; gap: 9px; }
.range + .range { margin-top: 22px; }
.range-top {
  display: flex; align-items: baseline; justify-content: space-between; gap: 14px;
}
.range-top .nm { font-family: var(--f-display); font-weight: 600; font-size: 15px; }
.range-top .rd {
  font-family: var(--f-data); font-size: 13px; color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}
.range-track {
  position: relative; height: 10px; border-radius: 5px;
  background: linear-gradient(90deg,
    var(--warn-tint) 0%, var(--warn-tint) var(--low, 30%),
    var(--data-tint) var(--low, 30%), var(--data-tint) var(--high, 72%),
    var(--sunk) var(--high, 72%), var(--sunk) 100%);
  border: 1px solid var(--rule);
}
.range-band {
  position: absolute; top: -1px; bottom: -1px;
  left: var(--low, 30%); right: calc(100% - var(--high, 72%));
  border-left: 1px solid var(--data); border-right: 1px solid var(--data);
}
.range-mark {
  position: absolute; top: 50%; left: var(--at, 20%);
  width: 3px; height: 22px; border-radius: 2px;
  background: var(--ink); transform: translate(-50%, -50%);
}
.range-scale {
  display: flex; justify-content: space-between;
  font-family: var(--f-data); font-size: 11px; color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

/* ---------- regulatory band (research line) ---------- */
.reg {
  border: 1px solid var(--amber);
  background: var(--amber-tint);
  border-radius: var(--r-md);
  padding: 18px 22px;
  display: grid; grid-template-columns: 26px 1fr; gap: 15px; align-items: start;
}
.reg svg { width: 22px; height: 22px; color: var(--amber); margin-top: 2px; }
.reg h2, .reg h3 {
  font-size: 16px; color: var(--ink); margin-bottom: 5px;
  margin-top: 0; letter-spacing: -0.01em; line-height: 1.25;
}
.reg p { color: var(--ink-2); font-size: 15px; max-width: 74ch; }
.reg.strong { border-width: 2px; }

.notice {
  border: 1px solid var(--rule);
  background: var(--surface);
  border-radius: var(--r-md);
  padding: 18px 22px;
}
.notice h2, .notice h3 {
  font-size: 16px; margin-bottom: 6px; margin-top: 0;
  letter-spacing: -0.01em; line-height: 1.25;
}
.notice p { color: var(--ink-2); font-size: 15.5px; }

/* ---------- definition rows (replaces card grids) ---------- */
/* Capped so the description column ends on a consistent right edge instead of
   trailing off into an empty third of the shell at desktop width. */
.deflist { border-top: 1px solid var(--rule); max-width: 960px; }
.defrow {
  display: grid; grid-template-columns: minmax(180px, 280px) 1fr;
  gap: 12px 48px; padding: 22px 0; border-bottom: 1px solid var(--rule-soft);
  align-items: baseline;
}
.defrow > div > p { max-width: 64ch; }
.defrow > h3 { font-size: 18px; }
.defrow > div > p { color: var(--ink-2); }
.defrow > div > p + p { margin-top: 10px; }
@media (max-width: 720px) { .defrow { grid-template-columns: 1fr; gap: 8px; } }

/* ---------- steps (real sequence: order carries meaning) ---------- */
.steps { counter-reset: s; border-top: 1px solid var(--rule); max-width: 960px; }
.step {
  counter-increment: s;
  display: grid; grid-template-columns: 46px 1fr; gap: 26px;
  padding: 24px 0; border-bottom: 1px solid var(--rule-soft);
}
.step::before {
  content: counter(s, decimal-leading-zero);
  font-family: var(--f-data); font-size: 13px; color: var(--data);
  font-weight: 500; padding-top: 3px;
}
.step h3 { margin-bottom: 6px; }
.step p { color: var(--ink-2); max-width: 64ch; }

/* ---------- plan / price ---------- */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(272px, 1fr)); gap: 18px; }
.plan {
  border: 1px solid var(--rule); border-radius: var(--r-md);
  background: var(--surface); padding: 26px 24px;
  display: flex; flex-direction: column; gap: 13px;
}
.plan.lead { border-color: var(--accent); box-shadow: var(--shadow-1); }
.plan .rx {
  font-family: var(--f-data); font-size: 10.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--data);
  min-height: 2.2em; display: flex; align-items: flex-start;
}
/* Reserve two lines for the plan name so the prices sit on one baseline across
   the row whether a name wraps or not. */
.plan h3 { min-height: 2.2em; }
.plan .amt { font-family: var(--f-display); font-size: 30px; font-weight: 680; letter-spacing: -0.03em; }
.plan .amt span { font-size: 15px; font-weight: 500; color: var(--ink-3); letter-spacing: 0; }
.plan p { color: var(--ink-2); font-size: 15.5px; flex: 1; }
.plan .btn { width: 100%; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--rule); max-width: 860px; }
.qa { border-bottom: 1px solid var(--rule-soft); }
.qa summary {
  cursor: pointer; list-style: none; padding: 20px 40px 20px 0; position: relative;
  font-family: var(--f-display); font-weight: 600; font-size: 17.5px; color: var(--ink);
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: ""; position: absolute; right: 6px; top: 27px;
  width: 11px; height: 11px; border-right: 2px solid var(--ink-3);
  border-bottom: 2px solid var(--ink-3); transform: rotate(45deg);
  transition: transform .2s ease;
}
.qa[open] summary::after { transform: rotate(-135deg); }
.qa .ans { padding: 0 0 22px; }
.qa .ans p { color: var(--ink-2); }
.qa .ans p + p { margin-top: 12px; }

/* ---------- footer ---------- */
.foot { background: var(--graphite); color: #E4ECE8; padding: 60px 0 34px; margin-top: 0; }
.foot a { color: #C3D2CC; text-decoration: none; }
.foot a:hover { color: #fff; text-decoration: underline; }
.foot-grid {
  display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 34px;
  padding-bottom: 34px; border-bottom: 1px solid rgba(255,255,255,.14);
}
@media (max-width: 820px) { .foot-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .foot-grid { grid-template-columns: 1fr; } }
.foot-col h3.foot-h {
  font-family: var(--f-data); font-size: 10.5px; letter-spacing: .13em;
  text-transform: uppercase; color: #8CA096; margin-bottom: 13px; font-weight: 500;
}
.foot-col a { display: block; padding: 5px 0; font-family: var(--f-display); font-size: 14.5px; }
.foot-brand p { color: #A8BAB2; font-size: 15px; margin-top: 13px; max-width: 40ch; }
.foot-brand .wordmark { color: #fff; }
.foot-legal { padding-top: 26px; display: grid; gap: 13px; }
.foot-legal p { font-size: 13px; line-height: 1.6; color: #93A69D; max-width: 92ch; }
.foot-legal .links { display: flex; flex-wrap: wrap; gap: 2px 22px; }
.foot-legal .links a {
  font-family: var(--f-display); font-size: 13.5px;
  display: inline-block; padding: 7px 0; /* touch target on mobile */
}

/* ---------- top regulatory band (research line only) ---------- */
.topreg {
  background: var(--graphite);
  color: #F2E6D2;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.topreg-in {
  display: grid; grid-template-columns: 20px 1fr; gap: 12px; align-items: start;
  padding-top: 11px; padding-bottom: 11px;
}
.topreg svg { width: 18px; height: 18px; color: var(--amber); margin-top: 3px; }
:root:not([data-theme="light"]) .topreg svg { color: #E5B168; }
.topreg p { font-size: 13.5px; line-height: 1.5; color: #E8DCC9; max-width: 96ch; }
.topreg b { color: #FFF; }

/* ---------- monograph header ---------- */
.monohead {
  display: grid; grid-template-columns: 1.35fr .65fr;
  gap: clamp(28px, 5vw, 64px); align-items: start;
}
@media (max-width: 940px) { .monohead { grid-template-columns: 1fr; } }
.idcard {
  border: 1px solid var(--rule); border-radius: var(--r-md);
  background: var(--surface); overflow: hidden; box-shadow: var(--shadow-1);
}
.idcard-h { padding: 12px 18px; background: var(--sunk); border-bottom: 1px solid var(--rule); }
.idcard-b { padding: 4px 18px; }
.idcard-b > div {
  display: grid; grid-template-columns: 62px 1fr; gap: 14px;
  padding: 15px 0; border-bottom: 1px solid var(--rule-soft); align-items: start;
}
.idcard-b > div:last-child { border-bottom: 0; }
.idcard-b dt {
  font-family: var(--f-data); font-size: 12.5px; color: var(--data);
  font-weight: 500; padding-top: 2px;
}
.idcard-b dd {
  font-family: var(--f-display); font-weight: 600; font-size: 16px; color: var(--ink);
}
.idcard-b dd span {
  display: block; font-weight: 400; font-size: 13.5px; color: var(--ink-3);
  font-family: var(--f-body); margin-top: 2px;
}
.idcard-f {
  padding: 14px 18px; border-top: 1px solid var(--rule);
  background: var(--sunk); font-size: 13px; color: var(--ink-3); line-height: 1.5;
}

/* ---------- monograph section title ---------- */
.mono-title {
  display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap;
  padding-bottom: 14px; margin-bottom: 18px; border-bottom: 2px solid var(--ink);
}
.mono-title .cat {
  font-family: var(--f-data); font-size: 13px; color: var(--data);
  letter-spacing: .06em; font-weight: 500;
}

/* ---------- utility ---------- */
/* A 2-column identity table and a 3-column specification table do not want
   equal halves; the wider track stops the spec table scrolling at desktop. */
.split.spec-pair { grid-template-columns: .86fr 1.14fr; }
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(30px, 5vw, 66px); align-items: start; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.stack-lg { display: grid; gap: 26px; }
.stack-md { display: grid; gap: 16px; }
.mt-lg { margin-top: 34px; }
.mt-md { margin-top: 22px; }
.center { text-align: center; margin-inline: auto; }
sup.cite { font-family: var(--f-data); font-size: 10px; color: var(--data); }