/* ============ 01 tokens ============ */
:root{
  --ink:#050D0B;
  --hall:#0B211C;
  --hall-2:#10302A;
  --cream:#F7F2E8;
  --stone:#DDE3DF;
  --terra:#D95F2B;
  --terra-deep:#A63E17;
  --lake:#1F6F8B;
  --lake-deep:#15536A;
  --lake-soft:#BFE3EF;
  --peacock:#1F9E8A;
  --gold:#E8B04B;
  --graphite:#2B2F33;
  --line:rgba(11,33,28,.14);
  --line-strong:rgba(11,33,28,.3);
  --line-dark:rgba(247,242,232,.16);
  --rail-w:236px;
  --bar-h:64px;
  --gutter:clamp(18px,4vw,48px);
  --radius:14px;
  --radius-lg:22px;
  --t:200ms;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-display:"Archivo Black","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ============ 02 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0}
ul[class],ol[class]{list-style:none}
img,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
table{border-collapse:collapse;width:100%}

/* ============ 03 base type ============ */
body{
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  color:var(--graphite);
  background-color:var(--cream);
  background-image:linear-gradient(180deg,rgba(11,33,28,.045),rgba(11,33,28,0) 360px);
  -webkit-font-smoothing:antialiased;
  padding-top:var(--bar-h);
}
h1,h2,h3{font-family:var(--font-display);font-weight:900;color:var(--hall);line-height:1.1;letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.75rem,3vw,2.5rem)}
h3{font-size:1.35rem;line-height:1.3}
p{max-width:68ch}
small{font-size:.8125rem}
strong{font-weight:700;color:var(--hall)}
::selection{background:var(--terra);color:var(--cream)}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:4px}
@media (min-width:1024px){
  body{padding-top:0;padding-left:var(--rail-w)}
}
#main-content{scroll-margin-top:calc(var(--bar-h) + 12px)}
@media (min-width:1024px){#main-content{scroll-margin-top:16px}}

/* ============ 04 skip link ============ */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  padding:.6em 1em;border-radius:8px;
  background:var(--cream);color:var(--hall);
  font-weight:700;font-size:.9rem;text-decoration:none;
  box-shadow:0 0 0 3px var(--terra),0 10px 24px rgba(5,13,11,.3);
  transform:translateY(-180%);
  transition:transform var(--t) var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}

/* ============ 05 rail header ============ */
.rail{
  position:fixed;z-index:90;top:0;left:0;
  display:flex;flex-direction:column;
  background:var(--ink);
  color:var(--cream);
  border-right:1px solid rgba(232,176,75,.2);
  box-shadow:18px 0 44px rgba(5,13,11,.18);
}
.rail::before{
  content:"";position:absolute;top:0;right:0;width:3px;height:100%;
  background:linear-gradient(180deg,var(--terra) 0%,var(--gold) 46%,var(--peacock) 74%,var(--lake) 100%);
  opacity:.85;
}
@media (min-width:1024px){
  .rail{width:var(--rail-w);bottom:0}
}
.rail__top{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 16px;
}
@media (min-width:1024px){
  .rail__top{
    align-items:flex-start;
    padding:26px 20px 16px;
    border-bottom:1px solid var(--line-dark);
  }
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;min-width:0}
.brand__mark{
  display:grid;place-items:center;flex:none;
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(150deg,var(--terra),var(--terra-deep));
  color:var(--cream);
  font-family:var(--font-display);font-size:1.05rem;line-height:1;
  box-shadow:inset 0 0 0 1px rgba(247,242,232,.28),0 6px 16px rgba(166,62,23,.36);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.brand:hover .brand__mark{transform:rotate(-6deg);box-shadow:inset 0 0 0 1px rgba(247,242,232,.5),0 8px 20px rgba(166,62,23,.5)}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{
  font-family:var(--font-display);font-weight:900;
  font-size:1.12rem;letter-spacing:.08em;line-height:1.15;color:var(--cream);
}
.brand__sub{
  font-family:var(--font-mono);font-size:.6rem;letter-spacing:.12em;
  color:rgba(247,242,232,.58);white-space:nowrap;
}
.rail__tagline{display:none}
@media (min-width:1024px){
  .rail__tagline{
    display:block;
    writing-mode:vertical-rl;text-orientation:upright;
    margin:0;padding-top:2px;
    font-family:var(--font-mono);font-size:.68rem;letter-spacing:.34em;
    line-height:1;color:var(--gold);opacity:.9;
  }
}
.nav-toggle{display:none}
@media (max-width:1023px){
  .nav-toggle{
    display:inline-flex;align-items:center;gap:8px;
    padding:8px 12px;border-radius:10px;
    background:rgba(247,242,232,.06);
    border:1px solid rgba(247,242,232,.24);
    color:var(--cream);cursor:pointer;
    font-family:var(--font-mono);font-size:.7rem;letter-spacing:.16em;
    transition:background var(--t) var(--ease),border-color var(--t) var(--ease);
  }
  .nav-toggle:hover{background:rgba(247,242,232,.14);border-color:var(--gold)}
  .nav-toggle__bars{display:grid;gap:4px;width:18px}
  .nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform var(--t) var(--ease),opacity var(--t) var(--ease)}
  .rail[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .rail[data-open] .nav-toggle__bars span:nth-child(2){opacity:0}
  .rail[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
}
.rail__panel{
  display:flex;flex-direction:column;gap:14px;
  padding:18px;overflow-y:auto;
}
@media (min-width:1024px){
  .rail__panel{flex:1;padding:18px 20px 22px;gap:16px}
}
@media (max-width:1023px){
  .rail__panel{
    position:fixed;top:var(--bar-h);left:0;bottom:0;
    width:min(340px,88vw);
    background:var(--hall);
    border-right:1px solid rgba(232,176,75,.28);
    box-shadow:26px 0 64px rgba(5,13,11,.5);
    padding:22px 18px 30px;
    transform:translateX(-104%);
    visibility:hidden;
    transition:transform 220ms var(--ease),visibility 220ms;
    z-index:2;
  }
  .rail[data-open] .rail__panel{transform:none;visibility:visible}
  .rail[data-open]::after{
    content:"";position:fixed;top:var(--bar-h);right:0;bottom:0;left:0;
    background:rgba(5,13,11,.62);z-index:1;
  }
}
.rail__status{
  display:flex;align-items:center;gap:.55em;
  padding:.45em .7em;border-radius:8px;
  background:rgba(31,158,138,.16);
  border:1px solid rgba(31,158,138,.42);
  color:var(--lake-soft);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.06em;line-height:1.4;
}
.rail__dot{
  flex:none;width:7px;height:7px;border-radius:50%;
  background:var(--peacock);box-shadow:0 0 0 3px rgba(31,158,138,.22);
}
.rail__nav{min-width:0}
.nav-list{display:flex;flex-direction:column;gap:3px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:10px 10px 10px 13px;border-radius:10px;
  border:1px solid transparent;
  color:rgba(247,242,232,.78);text-decoration:none;
  transition:color var(--t) var(--ease),background var(--t) var(--ease),border-color var(--t) var(--ease);
}
.nav-link::before{
  content:"";position:absolute;left:0;top:50%;
  width:3px;height:0;border-radius:2px;background:var(--gold);
  transform:translateY(-50%);
  transition:height var(--t) var(--ease),background var(--t) var(--ease);
}
.nav-link__idx{
  flex:none;min-width:1.9em;
  font-family:var(--font-mono);font-size:.64rem;letter-spacing:.08em;
  color:rgba(232,176,75,.78);
  transition:color var(--t) var(--ease);
}
.nav-link__label{font-size:.94rem;font-weight:500;letter-spacing:.05em}
.nav-link:hover{color:var(--cream);background:rgba(247,242,232,.08);border-color:rgba(247,242,232,.16)}
.nav-link:hover::before{height:44%}
.nav-link[aria-current="page"]{
  background:var(--cream);border-color:var(--cream);color:var(--ink);
  box-shadow:0 10px 22px rgba(5,13,11,.28);
}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--terra-deep)}
.nav-link[aria-current="page"]::before{height:58%;background:var(--terra)}
.rail__foot{
  margin-top:auto;display:grid;gap:8px;
  padding-top:16px;border-top:1px solid var(--line-dark);
}
.rail__alt{
  display:inline-block;padding:.35em 0;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;
  color:rgba(191,227,239,.86);text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.rail__alt::after{content:" →"}
.rail__alt:hover{color:var(--cream);border-bottom-color:var(--gold)}

/* ============ 06 buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.72em 1.15em;border-radius:10px;
  border:1px solid transparent;
  font-family:var(--font-body);font-weight:700;font-size:.95rem;letter-spacing:.05em;
  text-decoration:none;cursor:pointer;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.btn--primary{background:var(--terra);color:var(--cream);box-shadow:0 10px 24px rgba(217,95,43,.3)}
.btn--primary:hover{background:var(--terra-deep);transform:translateY(-1px)}
.btn--primary:active{transform:none;box-shadow:0 4px 12px rgba(217,95,43,.34)}
.btn--ghost{background:transparent;color:var(--hall);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--terra);color:var(--terra-deep);background:rgba(217,95,43,.07)}
.btn--lake{background:var(--lake);color:var(--cream);box-shadow:0 10px 24px rgba(31,111,139,.28)}
.btn--lake:hover{background:var(--lake-deep);transform:translateY(-1px)}
.btn--block{display:flex;width:100%}

/* ============ 07 layout helpers ============ */
.shell{width:100%;max-width:1180px;margin-inline:auto;padding-inline:var(--gutter)}
.page-head{padding-block:clamp(24px,4.5vw,52px) 8px}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:.45em;
  margin-bottom:16px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;
  color:var(--lake);
}
.crumbs a{text-decoration:none;border-bottom:1px solid rgba(31,111,139,.34);transition:color var(--t) var(--ease),border-color var(--t) var(--ease)}
.crumbs a:hover{color:var(--terra-deep);border-bottom-color:var(--terra)}
.crumbs span[aria-current="page"]{color:var(--graphite)}
.mono,.meta{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.1em;color:var(--lake-deep)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px 20px;justify-content:space-between;margin-bottom:clamp(16px,2.4vw,26px)}
.section-head__kicker{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.24em;color:var(--terra-deep)}
.section-head__title{font-family:var(--font-display);font-size:clamp(1.5rem,2.8vw,2.2rem);color:var(--hall);line-height:1.15}
.vertical-note{
  writing-mode:vertical-rl;text-orientation:upright;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.3em;
  color:var(--terra-deep);line-height:1;
}
.index-band{
  background:var(--hall);color:var(--cream);
  padding-block:clamp(16px,2.6vw,24px);
  border-block:1px solid rgba(232,176,75,.28);
}
.index-band .mono{color:var(--lake-soft)}

/* ============ 08 bento + cards ============ */
.bento{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(12px,1.6vw,20px)}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}
.card{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:#fff;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),transform var(--t) var(--ease);
}
.card:hover{border-color:var(--terra);box-shadow:0 14px 34px rgba(11,33,28,.1)}
.card--glass{
  background:rgba(247,242,232,.1);
  border-color:rgba(247,242,232,.24);
  backdrop-filter:blur(10px);
  color:var(--cream);
}
.card--glass h3,.card--glass strong{color:var(--cream)}
.card--ink{background:var(--hall);border-color:rgba(247,242,232,.16);color:rgba(247,242,232,.86)}
.card--ink h3,.card--ink strong{color:var(--cream)}
.card--terra{background:linear-gradient(155deg,var(--terra),var(--terra-deep));border-color:transparent;color:rgba(247,242,232,.94)}
.card--terra h3,.card--terra strong{color:var(--cream)}
.card--lake{background:linear-gradient(155deg,var(--lake),var(--lake-deep));border-color:transparent;color:rgba(247,242,232,.94)}
.card--lake h3,.card--lake strong{color:var(--cream)}
.card--glass:hover,.card--ink:hover,.card--terra:hover,.card--lake:hover{border-color:var(--gold);box-shadow:0 16px 38px rgba(5,13,11,.28)}
@media (max-width:900px){
  .span-3,.span-4,.span-5{grid-column:span 6}
  .span-6,.span-8{grid-column:span 12}
}
@media (max-width:560px){
  .span-3,.span-4,.span-5,.span-6,.span-8{grid-column:span 12}
}

/* ============ 09 tags, chips, faq ============ */
.tag{
  display:inline-flex;align-items:center;gap:.4em;
  padding:.32em .7em;border-radius:999px;
  border:1px solid rgba(31,111,139,.3);
  background:rgba(31,111,139,.1);
  color:var(--lake-deep);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.1em;
}
.tag--gold{background:rgba(232,176,75,.18);border-color:rgba(232,176,75,.5);color:#7a5410}
.tag--peacock{background:rgba(31,158,138,.14);border-color:rgba(31,158,138,.42);color:#0f6154}
.tag--terra{background:rgba(217,95,43,.12);border-color:rgba(217,95,43,.38);color:var(--terra-deep)}
.chip{
  display:inline-flex;align-items:center;gap:.45em;
  padding:.5em .95em;border-radius:999px;
  border:1px solid rgba(11,33,28,.24);
  background:transparent;color:var(--hall);
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.08em;
  cursor:pointer;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.chip:hover{border-color:var(--terra);color:var(--terra-deep)}
.chip[aria-pressed="true"],.chip[aria-pressed="true"]:hover{background:var(--hall);border-color:var(--hall);color:var(--cream)}
[data-filter-item][hidden]{display:none}
details.faq{
  border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;overflow:hidden;
}
details.faq + details.faq{margin-top:10px}
details.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:15px 18px;cursor:pointer;list-style:none;
  font-weight:600;color:var(--hall);
  transition:background var(--t) var(--ease);
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-family:var(--font-mono);color:var(--terra);font-weight:700}
details.faq[open] summary{background:rgba(221,227,223,.42)}
details.faq[open] summary::after{content:"–"}
details.faq .faq__body{padding:4px 18px 18px;color:var(--graphite);font-size:.95rem}
details.faq .faq__body p{max-width:64ch}

/* ============ 10 media frames ============ */
.media-frame{
  position:relative;isolation:isolate;overflow:hidden;
  border-radius:var(--radius-lg);
  background:linear-gradient(145deg,var(--hall) 0%,var(--hall-2) 52%,var(--lake-deep) 100%);
  min-height:180px;
}
.media-frame::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(circle at 78% 16%,rgba(232,176,75,.34),transparent 58%),
    radial-gradient(circle at 12% 92%,rgba(217,95,43,.34),transparent 62%),
    repeating-linear-gradient(118deg,rgba(247,242,232,.07) 0 2px,transparent 2px 15px);
}
.media-frame img{
  position:relative;z-index:1;
  width:100%;height:100%;object-fit:cover;
}
.media-frame--wide{aspect-ratio:16/9;min-height:0}
.media-frame--portrait{aspect-ratio:4/5;min-height:0}
.media-frame--square{aspect-ratio:1/1;min-height:0}
.media-frame--tall{aspect-ratio:3/4;min-height:0}

/* ============ 11 footer ============ */
.foot{background:var(--hall);color:var(--cream)}
.foot__band{position:relative}
.foot__band--lead{
  padding-block:clamp(30px,5vw,56px);
  background:
    radial-gradient(120% 140% at 88% 0%,rgba(217,95,43,.4),transparent 58%),
    radial-gradient(90% 120% at 10% 100%,rgba(31,111,139,.36),transparent 62%),
    var(--hall);
  overflow:hidden;
}
.foot__band--lead::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--terra),var(--gold) 38%,var(--peacock) 68%,var(--lake));
}
.foot__band--lead::after{
  content:"";position:absolute;right:-8%;top:-40%;width:42%;height:190%;
  background:rgba(217,95,43,.16);
  transform:rotate(14deg);
  pointer-events:none;
}
.foot__wrap{
  position:relative;z-index:1;
  width:100%;max-width:1180px;margin-inline:auto;
  padding-inline:var(--gutter);
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:22px 34px;
}
.foot__lead{max-width:44ch}
.foot__kicker{
  margin-bottom:12px;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.3em;
  color:var(--gold);
}
.foot__lead-text{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(1.3rem,2.6vw,1.85rem);line-height:1.5;
  color:var(--cream);max-width:26ch;
}
.foot__lead-side{display:grid;gap:10px;justify-items:start}
.foot__stamp{
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;
  color:rgba(191,227,239,.8);
}
.foot__band--contact{
  background:var(--cream);color:var(--graphite);
  padding-block:clamp(24px,3.6vw,40px);
  border-bottom:1px solid var(--line);
}
.foot__wrap--contact{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  align-items:start;gap:18px 30px;
}
.foot__contact-item{
  display:flex;flex-direction:column;gap:6px;
  padding-left:14px;border-left:2px solid var(--lake);
  min-width:0;
}
.foot__contact-item--wide{border-left-color:var(--terra)}
.foot__label{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.18em;
  color:var(--lake-deep);
}
.foot__row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;min-width:0}
.foot__value{
  font-weight:600;color:var(--hall);
  overflow-wrap:anywhere;line-height:1.5;
}
.copy{
  flex:none;
  padding:.15em .6em;border-radius:6px;
  border:1px solid rgba(11,33,28,.26);
  background:transparent;color:var(--terra-deep);
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;
  cursor:pointer;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.copy:hover{background:var(--terra);border-color:var(--terra);color:var(--cream)}
.copy__status{
  min-height:1.1em;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.08em;
  color:var(--peacock);
}
.foot__contact-note{
  grid-column:1/-1;max-width:80ch;
  margin-top:4px;padding-top:14px;
  border-top:1px dashed rgba(11,33,28,.22);
  font-size:.8125rem;line-height:1.7;color:#4B5257;
}
.foot__band--legal{
  background:var(--ink);
  padding-block:20px 26px;
}
.foot__wrap--legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 26px;
}
.foot__links{display:flex;flex-wrap:wrap;gap:6px 20px}
.foot__links a{
  font-size:.85rem;color:rgba(247,242,232,.76);text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.foot__links a:hover{color:var(--gold);border-bottom-color:var(--gold)}
.foot__legal,.foot__copy{
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.06em;
  color:rgba(247,242,232,.5);line-height:1.6;
}

/* ============ 12 js widgets ============ */
.scroll-meter{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:120;
  background:rgba(5,13,11,.16);pointer-events:none;
}
.scroll-meter__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--terra),var(--gold) 44%,var(--peacock) 76%,var(--lake));
}
@media (min-width:1024px){.scroll-meter{left:var(--rail-w)}}
@media (max-width:1023px){.scroll-meter{top:var(--bar-h)}}
.to-top{
  position:fixed;right:clamp(14px,2.4vw,28px);bottom:clamp(14px,2.4vw,28px);
  z-index:110;width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  border:1px solid rgba(232,176,75,.55);
  background:var(--ink);color:var(--cream);
  cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--t) var(--ease),transform var(--t) var(--ease),visibility var(--t) var(--ease),background var(--t) var(--ease);
}
.to-top[data-visible="true"]{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--terra);border-color:var(--terra);color:var(--cream)}

/* ============ 13 motion preference ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
}