:root{
  --void:#07111F;
  --void-deep:#050C16;
  --panel:#0C1A2B;
  --panel-soft:#0A1626;
  --steel:#1E3A52;
  --cyan:#22D3EE;
  --cyan-deep:#0E7490;
  --orange:#FF7A1A;
  --green:#39F29A;
  --ice:#E8F7FF;
  --mist:#8FA8BA;
  --focus:#A5F3FC;
  --font-head:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --font-body:var(--font-head);
  --shell:1240px;
  --gutter:clamp(1rem,3vw,2.5rem);
  --shadow-hard:5px 5px 0 0 rgba(4,12,22,.9);
  --shadow-lift:0 18px 36px -20px rgba(0,0,0,.9);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--void);
  color:var(--ice);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:800;letter-spacing:-.02em;line-height:1.14}
main{display:block}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;box-shadow:0 0 0 5px rgba(165,243,252,.16)}
::selection{background:rgba(34,211,238,.28);color:var(--ice)}

/* ---------- layout ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.stack{display:flex;flex-direction:column;gap:clamp(.85rem,2vw,1.5rem)}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(.9rem,2vw,1.5rem)}
.divider{height:1px;background:linear-gradient(90deg,var(--steel),rgba(30,58,82,.1));margin-block:clamp(1.2rem,3vw,2rem)}
.rule-diagonal{
  height:2px;margin-block:clamp(1.5rem,4vw,3rem);
  background:linear-gradient(90deg,var(--cyan) 0 14%,rgba(34,211,238,.32) 32%,transparent 82%);
  transform:skewY(-1.4deg);
}

/* ---------- typography helpers ---------- */
.prose{max-width:66ch;color:var(--mist);font-size:1rem;line-height:1.85}
.prose h2,.prose h3{color:var(--ice);margin-bottom:.6em}
.prose p{margin-bottom:1.1em}
.prose strong{color:var(--ice)}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(34,211,238,.4)}
.prose a:hover{border-color:var(--cyan)}
.eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--font-mono);font-size:.7rem;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--cyan)}
.section-num{
  display:block;font-family:var(--font-mono);font-weight:700;
  font-size:clamp(2.4rem,6vw,4.4rem);line-height:.9;letter-spacing:-.02em;
  color:rgba(34,211,238,.2);-webkit-text-stroke:1px rgba(34,211,238,.45);
}

/* ---------- buttons & tags ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.72rem 1.15rem;
  font-family:var(--font-mono);font-size:.76rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--ice);background:var(--panel);
  border:1px solid var(--steel);box-shadow:4px 4px 0 rgba(4,12,22,.8);
  cursor:pointer;
  transition:transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.btn:hover{transform:translate(-1px,-1px);border-color:var(--cyan);color:var(--cyan)}
.btn--primary{
  background:var(--orange);border-color:#FF9A4D;color:#180800;
  box-shadow:4px 4px 0 rgba(255,122,26,.24);
}
.btn--primary:hover{background:#FF8F3A;color:#120600;border-color:var(--focus)}
.btn--ghost{background:transparent;border-color:rgba(34,211,238,.45);color:var(--cyan)}
.btn--ghost:hover{background:rgba(34,211,238,.1);color:var(--focus)}
.btn--quiet{
  background:transparent;border-color:transparent;box-shadow:none;
  padding-inline:.35rem;color:var(--mist);
}
.btn--quiet:hover{color:var(--cyan)}
.tag{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.22rem .55rem;
  font-family:var(--font-mono);font-size:.65rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--mist);background:rgba(12,26,43,.72);border:1px solid var(--steel);
}
.tag--cyan{color:var(--cyan);border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.08)}
.tag--orange{color:var(--orange);border-color:rgba(255,122,26,.5);background:rgba(255,122,26,.09)}
.tag--green{color:var(--green);border-color:rgba(57,242,154,.45);background:rgba(57,242,154,.09)}

/* ---------- panels & cards ---------- */
.panel{
  position:relative;padding:clamp(1rem,2.4vw,1.6rem);
  background:var(--panel);border:1px solid var(--steel);
  box-shadow:var(--shadow-hard);
}
.panel--flush{padding:0;overflow:hidden}
.card{
  position:relative;display:flex;flex-direction:column;gap:.65rem;
  padding:clamp(1rem,2.2vw,1.4rem);
  background:var(--panel);border:1px solid var(--steel);
  box-shadow:4px 4px 0 rgba(4,12,22,.85);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:var(--cyan);box-shadow:6px 9px 0 rgba(4,12,22,.85)}

/* ---------- media frames ---------- */
.media-frame{
  position:relative;overflow:hidden;width:100%;
  aspect-ratio:16/10;
  background:
    radial-gradient(120% 120% at 82% 0%,rgba(34,211,238,.16),transparent 58%),
    linear-gradient(160deg,var(--panel) 0%,var(--void) 72%);
  border:1px solid var(--steel);
  box-shadow:var(--shadow-hard);
}
.media-frame::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(rgba(30,58,82,.5) 1px,transparent 1px),
    linear-gradient(90deg,rgba(30,58,82,.5) 1px,transparent 1px);
  background-size:44px 44px;
}
.media-frame img,.media-frame picture{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}
.media-frame__caption{
  position:absolute;left:0;bottom:0;z-index:2;
  padding:.45rem .8rem;
  font-family:var(--font-mono);font-size:.65rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ice);background:rgba(7,17,31,.86);
  border-top:1px solid var(--steel);border-right:1px solid var(--steel);
}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .55rem;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--mist);
}
.breadcrumb__link{color:var(--mist);border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease)}
.breadcrumb__link:hover{color:var(--cyan);border-color:var(--cyan)}
.breadcrumb__sep{color:var(--steel)}
.breadcrumb__current{color:var(--ice)}

/* ---------- disclosure ---------- */
.disclosure{border:1px solid var(--steel);background:var(--panel);box-shadow:3px 3px 0 rgba(4,12,22,.7)}
.disclosure__summary{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.9rem 1.1rem;cursor:pointer;font-weight:700;color:var(--ice);
  list-style:none;
}
.disclosure__summary::-webkit-details-marker{display:none}
.disclosure__summary::after{content:"+";font-family:var(--font-mono);font-size:1.1rem;color:var(--cyan)}
.disclosure[open] .disclosure__summary::after{content:"–"}
.disclosure[open]{border-color:rgba(34,211,238,.4)}
.disclosure__body{padding:0 1.1rem 1.1rem;color:var(--mist);font-size:.95rem;line-height:1.8}

/* ---------- reveal protocol ---------- */
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .45s var(--ease),transform .45s var(--ease)}
[data-reveal][data-reveal-in]{opacity:1;transform:none}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:.6rem;left:.6rem;z-index:130;
  padding:.6rem 1rem;
  font-family:var(--font-mono);font-size:.74rem;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;
  background:var(--cyan);color:#04121C;border:1px solid var(--focus);
  box-shadow:4px 4px 0 rgba(4,12,22,.9);
  transform:translateY(-180%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- header ---------- */
.site-header{position:relative;z-index:40}
.header-utility{
  background:linear-gradient(90deg,var(--void-deep) 0%,#0A1A2B 55%,var(--void-deep) 100%);
  border-bottom:1px solid var(--steel);
}
.header-utility__inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:.5rem 1.25rem;
  min-height:42px;padding-block:.4rem;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--mist);
}
.header-utility__brand{display:flex;align-items:center;gap:.5rem;margin:0;min-width:0}
.header-utility__brand-name{color:var(--ice);font-weight:700;letter-spacing:.18em}
.header-utility__sep{color:var(--cyan-deep)}
.header-utility__note{color:var(--mist);letter-spacing:.08em}
.header-utility__meta{display:flex;align-items:center;gap:.9rem;margin:0 0 0 auto;flex-wrap:wrap}
.header-utility__link{
  padding-bottom:2px;font-weight:700;color:var(--cyan);
  border-bottom:1px solid rgba(34,211,238,.45);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.header-utility__link:hover{color:var(--focus);border-color:var(--focus)}
.live-badge{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.16rem .55rem .16rem .45rem;
  font-size:.66rem;letter-spacing:.12em;color:var(--green);
  border:1px solid rgba(57,242,154,.35);border-radius:999px;
  background:rgba(57,242,154,.07);
}
.status-dot{
  width:7px;height:7px;border-radius:50%;flex:0 0 auto;
  background:var(--green);box-shadow:0 0 0 3px rgba(57,242,154,.18);
}
.header-main{position:relative;background:var(--void);border-bottom:2px solid var(--steel);box-shadow:0 16px 30px -26px #000}
.header-main::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:linear-gradient(90deg,var(--cyan) 0 16%,rgba(34,211,238,.18) 44%,transparent 78%);
}
.header-main__inner{
  display:flex;align-items:center;gap:clamp(.6rem,1.8vw,1.5rem);
  min-height:70px;padding-block:.7rem;
}

/* brand */
.brand{
  display:inline-flex;align-items:center;gap:.7rem;flex:0 0 auto;
  color:var(--ice);
}
.brand__mark{
  display:grid;place-items:center;
  width:38px;height:38px;
  font-family:var(--font-mono);font-size:.92rem;font-weight:700;letter-spacing:.02em;
  color:#04121C;
  background:linear-gradient(140deg,var(--cyan) 0%,#8BEEFB 100%);
  border:1px solid var(--focus);
  box-shadow:4px 4px 0 rgba(14,116,144,.55);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__text{
  display:flex;flex-direction:column;line-height:1.05;
  font-family:var(--font-head);font-weight:800;font-size:1.05rem;letter-spacing:.02em;
}
.brand__text small{
  margin-top:.3rem;
  font-family:var(--font-mono);font-size:.55rem;font-weight:400;
  letter-spacing:.22em;text-transform:uppercase;color:var(--mist);
}
.brand--footer .brand__text{font-size:1.12rem}

/* drawer toggle */
.nav-toggle{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.48rem .8rem;
  font-family:var(--font-mono);font-size:.7rem;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;
  color:var(--ice);background:var(--panel);
  border:1px solid var(--steel);box-shadow:3px 3px 0 rgba(0,0,0,.6);
  cursor:pointer;flex:0 0 auto;
  transition:transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{transform:translate(-1px,-1px);border-color:var(--cyan);color:var(--cyan)}
.nav-toggle[aria-expanded="true"]{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bars span{display:block;height:2px;background:currentColor}
.nav-toggle__bars span:nth-child(2){width:72%}
.nav-toggle__bars span:nth-child(3){width:44%}

/* primary nav */
.primary-nav{margin-inline-start:auto}
.primary-nav__list{display:flex;align-items:center;gap:clamp(.3rem,1.3vw,1rem);flex-wrap:nowrap}
.primary-nav__link{
  position:relative;display:inline-block;padding:.5rem .3rem;
  font-size:.88rem;font-weight:600;color:var(--mist);white-space:nowrap;
  transition:color .18s var(--ease);
}
.primary-nav__link::after{
  content:"";position:absolute;left:.3rem;right:.3rem;bottom:.2rem;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease),background-color .18s var(--ease);
}
.primary-nav__link:hover{color:var(--ice)}
.primary-nav__link:hover::after{transform:scaleX(1)}
.primary-nav__link:focus-visible{color:var(--ice)}
.primary-nav__link[aria-current="page"]{color:var(--ice)}
.primary-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--green)}

/* track tabs */
.track-tabs{
  display:flex;align-items:stretch;gap:2px;flex:0 0 auto;
  padding:2px;border:1px solid var(--steel);background:rgba(12,26,43,.85);
}
.track-tabs__item{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.4rem .65rem;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;
  color:var(--mist);border:1px solid transparent;
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.track-tabs__code{font-size:.58rem;color:var(--cyan-deep);transition:color .18s var(--ease)}
.track-tabs__item:hover{color:#04121C;background:var(--cyan);border-color:var(--focus)}
.track-tabs__item:hover .track-tabs__code{color:#04121C}

/* scrim */
.nav-scrim{
  position:fixed;inset:0;z-index:60;
  background:rgba(4,10,18,.74);
  backdrop-filter:blur(2px);
}
.nav-scrim[hidden]{display:none}

/* drawer */
.nav-drawer{
  position:fixed;top:0;left:0;bottom:0;z-index:70;
  width:min(92vw,400px);
  display:flex;flex-direction:column;
  padding:1.1rem 1.15rem 1.6rem;
  overflow-y:auto;overscroll-behavior:contain;
  background:linear-gradient(180deg,#0B1A2A 0%,var(--void) 68%);
  border-right:2px solid var(--steel);
  box-shadow:26px 0 50px -26px #000;
  transform:translateX(-102%);
  visibility:hidden;
  transition:transform .34s var(--ease),visibility .34s var(--ease);
}
.nav-drawer::before{
  content:"";position:absolute;top:0;right:0;width:2px;height:180px;
  background:linear-gradient(180deg,var(--cyan),transparent);
}
.nav-drawer[data-open]{transform:translateX(0);visibility:visible}
.nav-drawer__head{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding-bottom:.9rem;margin-bottom:1rem;
  border-bottom:1px solid var(--steel);
}
.nav-drawer__eyebrow{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--cyan);
}
.nav-drawer__close{
  padding:.28rem .6rem;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--mist);border:1px solid var(--steel);cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.nav-drawer__close:hover{color:var(--orange);border-color:var(--orange)}
.nav-drawer__group{margin-bottom:1.1rem}
.nav-drawer__label{
  display:flex;align-items:center;gap:.5rem;
  margin-bottom:.45rem;
  font-family:var(--font-mono);font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--mist);
}
.nav-drawer__label span{color:var(--cyan-deep)}
.nav-drawer__list{display:flex;flex-direction:column;gap:2px}
.nav-drawer__link{
  display:flex;align-items:center;gap:.6rem;
  padding:.52rem .65rem;
  font-size:.94rem;font-weight:600;color:var(--mist);
  border-left:2px solid transparent;
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.nav-drawer__node{
  width:6px;height:6px;flex:0 0 auto;border-radius:50%;
  background:var(--steel);
  transition:background-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-drawer__link:hover{color:var(--ice);background:rgba(34,211,238,.07);border-left-color:var(--cyan-deep)}
.nav-drawer__link:hover .nav-drawer__node{background:var(--cyan)}
.nav-drawer__link[aria-current="page"]{color:var(--ice);background:rgba(34,211,238,.1);border-left-color:var(--cyan)}
.nav-drawer__link[aria-current="page"] .nav-drawer__node{background:var(--green);box-shadow:0 0 0 3px rgba(57,242,154,.2)}
.nav-drawer__foot{
  margin-top:auto;padding-top:1rem;border-top:1px solid var(--steel);
}
.nav-drawer__foot-note{
  margin-bottom:.7rem;
  font-family:var(--font-mono);font-size:.65rem;letter-spacing:.12em;
  color:var(--mist);
}
.nav-drawer__foot-link{
  display:flex;align-items:center;justify-content:space-between;gap:.6rem;
  padding:.7rem .85rem;
  font-family:var(--font-mono);font-size:.76rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
  color:#180800;background:var(--orange);
  border:1px solid #FF9A4D;box-shadow:4px 4px 0 rgba(255,122,26,.22);
  transition:transform .18s var(--ease),background-color .18s var(--ease);
}
.nav-drawer__foot-link::after{content:"→";font-size:.9rem}
.nav-drawer__foot-link:hover{transform:translate(-1px,-1px);background:#FF8F3A}

/* scroll progress */
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:100;
  transform:scaleX(0);transform-origin:left;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--green) 62%,var(--orange) 100%);
  pointer-events:none;
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(3rem,7vw,6rem);
  background:linear-gradient(180deg,var(--void) 0%,var(--void-deep) 64%);
  border-top:2px solid var(--steel);
}
.site-footer::before{
  content:"";position:absolute;top:-2px;left:0;
  width:min(320px,44vw);height:2px;background:var(--orange);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.55fr repeat(4,minmax(0,1fr));
  gap:clamp(1.3rem,3vw,2.4rem);
  padding-block:clamp(2rem,5vw,3.2rem);
}
.footer-brand{display:flex;flex-direction:column;gap:.85rem;min-width:0}
.footer-brand__line{
  max-width:26ch;
  font-size:.92rem;line-height:1.7;color:var(--mist);
}
.footer-brand__meta{
  display:inline-flex;align-items:center;gap:.45rem;
  font-family:var(--font-mono);font-size:.65rem;letter-spacing:.1em;
  color:var(--green);
}
.footer-col__title{
  margin-bottom:.75rem;
  font-family:var(--font-mono);font-size:.66rem;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;color:var(--ice);
}
.footer-list{display:flex;flex-direction:column;gap:.45rem}
.footer-list__link{
  display:inline-block;
  font-size:.9rem;color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.footer-list__link:hover{color:var(--cyan);border-color:rgba(34,211,238,.5);transform:translateX(2px)}

.footer-help{
  display:grid;
  grid-template-columns:auto 1fr;
  align-items:center;
  gap:clamp(.8rem,2.5vw,2rem);
  padding-block:clamp(.9rem,2vw,1.2rem);
  border-top:1px solid var(--steel);
  border-bottom:1px solid var(--steel);
}
.footer-help__title{
  font-family:var(--font-mono);font-size:.66rem;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);
}
.footer-help__list{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:.6rem;
}
.footer-help__item{
  display:flex;align-items:center;gap:.55rem;
  padding:.55rem .8rem;
  background:rgba(12,26,43,.75);
  border:1px solid var(--steel);
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.footer-help__item:hover{border-color:var(--cyan);transform:translateY(-2px)}
.footer-help__item--accent{border-color:rgba(255,122,26,.55);background:rgba(255,122,26,.07)}
.footer-help__item--accent:hover{border-color:var(--orange)}
.footer-help__index{
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.1em;
  color:var(--cyan-deep);
}
.footer-help__item--accent .footer-help__index{color:var(--orange)}
.footer-help__link{
  font-size:.9rem;font-weight:600;color:var(--ice);
  transition:color .18s var(--ease);
}
.footer-help__item--accent .footer-help__link{color:var(--orange)}
.footer-help__link:hover{color:var(--cyan)}

.footer-meta{
  display:grid;grid-template-columns:1.1fr 1fr;
  gap:clamp(1.2rem,3vw,2.4rem);
  padding-block:clamp(1.4rem,3.5vw,2.2rem);
}
.footer-contact{display:flex;flex-direction:column;gap:.55rem;margin:0}
.footer-contact__row{display:flex;flex-wrap:wrap;gap:.25rem .8rem;align-items:baseline}
.footer-contact__key{
  min-width:5.2em;
  font-family:var(--font-mono);font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan-deep);
}
.footer-contact__val{
  margin:0;font-family:var(--font-mono);font-size:.82rem;letter-spacing:.02em;
  color:var(--ice);word-break:break-all;
}
.footer-legal{display:flex;flex-direction:column;gap:.7rem}
.footer-note{font-size:.82rem;line-height:1.7;color:var(--mist)}
.footer-legal__list{display:flex;flex-wrap:wrap;gap:.4rem 1.1rem}
.footer-legal__link{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;
  color:var(--ice);border-bottom:1px solid var(--steel);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer-legal__link:hover{color:var(--cyan);border-color:var(--cyan)}
.footer-copy{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;
  color:var(--mist);opacity:.85;
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .primary-nav__list{gap:.25rem}
  .primary-nav__link{font-size:.82rem}
  .track-tabs__item{padding:.36rem .5rem;font-size:.65rem}
}

@media (max-width:980px){
  .header-main__inner{min-height:62px;gap:.6rem}
  .brand{margin-inline-end:auto}
  .brand__text{font-size:.98rem}
  .brand__mark{width:34px;height:34px;font-size:.84rem}
  .primary-nav,.track-tabs{display:none}
  .nav-toggle{order:3;margin-inline-start:.25rem}
  .header-utility__note{display:none}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1/-1}
  .footer-meta{grid-template-columns:1fr}
  .footer-help{grid-template-columns:1fr}
}

@media (max-width:700px){
  .header-utility__inner{font-size:.64rem;letter-spacing:.06em;gap:.35rem .8rem}
  .header-utility__meta{gap:.55rem}
  .live-badge{font-size:.6rem;padding:.14rem .45rem}
  .footer-help__list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:1.1rem}
  .footer-contact__key{min-width:4.6em}
  .nav-drawer{width:min(90vw,340px)}
  .skip-link{left:.5rem;right:.5rem;text-align:center}
}

@media (max-width:420px){
  .brand__text small{letter-spacing:.14em}
  .nav-toggle__text{display:none}
  .nav-toggle{padding:.5rem}
}

@media (min-width:981px){
  .nav-toggle__text{letter-spacing:.18em}
}

/* ---------- motion preferences ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .card:hover,.footer-help__item:hover,.footer-list__link:hover{transform:none}
  .nav-drawer{transition:none}
  .scroll-progress{transition:none}
}