:root{
  --ink-900:#061826;
  --ink-800:#0C2438;
  --ink-700:#12324A;
  --cyan:#35E6D0;
  --cyan-soft:#8FF7EC;
  --coral:#FF6B4A;
  --red:#FF3B3B;
  --yellow:#FFD23F;
  --paper:#F2E9DC;
  --paper-ink:#0A1014;
  --muted:#7E96A8;
  --text:#E6F1F7;
  --line:rgba(53,230,208,.22);
  --line-soft:rgba(126,150,168,.22);
  --mono:ui-monospace,SFMono-Regular,Menlo,"JetBrains Mono","Roboto Mono","Cascadia Mono",monospace;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --radius:3px;
  --shadow:0 26px 60px -34px rgba(0,0,0,.95);
  --header-h:76px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 18px);
}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
img{height:auto}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--cyan-soft);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--cyan)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}
::selection{background:var(--cyan);color:#03120F}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- base / typography ---------- */
body{
  margin:0;
  min-height:100vh;
  font-family:var(--sans);
  font-size:clamp(15px,.32vw + 14.2px,16.5px);
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1100px 620px at 84% -14%,rgba(53,230,208,.13),transparent 62%),
    radial-gradient(760px 540px at 4% 8%,rgba(255,107,74,.11),transparent 64%),
    var(--ink-900);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-weight:900;line-height:1.1;letter-spacing:-.02em;color:#F4FBFD}
h1{font-size:clamp(2.1rem,6vw,4.2rem)}
h2{font-size:clamp(1.5rem,3.2vw,2.3rem)}
h3{font-size:clamp(1.1rem,1.8vw,1.35rem);letter-spacing:-.01em}
p{max-width:38em}
strong{color:#FFF;font-weight:800}
code,kbd,samp{font-family:var(--mono);font-size:.9em}

/* ---------- layout ---------- */
.container{width:min(1220px,calc(100% - clamp(2rem,8vw,6rem)));margin-inline:auto}
.section{padding-block:clamp(2.4rem,6vw,5rem)}
.section--paper{background:var(--paper);color:var(--paper-ink)}
.section--paper h1,.section--paper h2,.section--paper h3,.section--paper strong{color:var(--paper-ink)}
.section--paper a,.section--paper .eyebrow{color:#0A5C55}
.section--paper p{color:#22303A}
.grid{display:grid;gap:clamp(1rem,2.4vw,1.8rem)}
.grid--two{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--three{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--asym{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);align-items:start}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:.5rem;left:.5rem;z-index:200;
  padding:.7rem 1rem;
  background:var(--cyan);color:#03120F;
  font-weight:800;font-size:.85rem;text-decoration:none;
  border-radius:2px;transform:translateY(-160%);
  transition:transform .2s ease;
}
.skip-link:focus-visible{transform:translateY(0);outline-offset:2px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  color:var(--text);
  background:linear-gradient(180deg,rgba(6,24,38,.95),rgba(6,24,38,.80));
  -webkit-backdrop-filter:blur(16px) saturate(1.25);
  backdrop-filter:blur(16px) saturate(1.25);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header[data-condensed="true"]{box-shadow:0 22px 48px -32px rgba(0,0,0,.95)}
.site-header__inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(.8rem,2vw,1.9rem);
  min-height:var(--header-h);
  transition:min-height .26s ease;
}
.site-header[data-condensed="true"] .site-header__inner{min-height:62px}
.scroll-meter{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  overflow:hidden;pointer-events:none;background:rgba(126,150,168,.14);
}
.scroll-meter__fill{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-soft) 62%,var(--coral));
}

/* brand */
.brand{
  display:inline-flex;align-items:center;gap:.66rem;
  padding-block:.35rem;
  color:inherit;text-decoration:none;
}
.brand:hover{color:inherit}
.brand__mark{
  position:relative;flex:none;
  width:34px;height:34px;display:grid;place-items:center;
  background:linear-gradient(152deg,var(--cyan) 0%,#1C6A7B 46%,var(--ink-800) 100%);
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);
  box-shadow:0 0 22px -8px rgba(53,230,208,.9);
}
.brand__mark-dot{
  width:9px;height:9px;border-radius:50%;
  background:var(--ink-900);
  box-shadow:0 0 0 3px rgba(6,24,38,.62),0 0 14px rgba(53,230,208,.9);
}
.brand__text{display:flex;flex-direction:column;line-height:1.12;min-width:0}
.brand__name{font-weight:900;font-size:1.02rem;letter-spacing:-.01em;color:#F4FBFD;white-space:nowrap}
.brand__meta{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--muted);white-space:nowrap;
}
.brand--footer{padding-block:0;margin-bottom:.9rem}

/* command bar */
.cmdbar{min-width:0}
.cmdbar__list{display:flex;align-items:center;flex-wrap:nowrap;gap:clamp(.1rem,.7vw,.45rem)}
.cmdbar__item{flex:none}
.cmdbar__link{
  display:inline-flex;align-items:baseline;gap:.38rem;
  padding:.48rem .6rem;
  font-size:.85rem;font-weight:600;color:#B9CFDB;
  text-decoration:none;white-space:nowrap;
  border:1px solid transparent;border-radius:2px;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.cmdbar__idx{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;
  color:rgba(143,247,236,.55);
}
.cmdbar__link:hover{
  color:var(--cyan-soft);
  border-color:rgba(53,230,208,.3);
  background:rgba(53,230,208,.07);
}
.cmdbar__link[aria-current="page"]{
  color:#03120F;
  background:var(--cyan);
  border-color:var(--cyan);
  box-shadow:0 12px 26px -18px var(--cyan);
}
.cmdbar__link[aria-current="page"] .cmdbar__idx{color:rgba(3,18,15,.62)}

/* header tools */
.header-tools{display:flex;align-items:center;gap:.55rem;justify-self:end}
.route-hint{
  display:inline-flex;align-items:center;gap:.42rem;
  padding:.44rem .78rem .44rem .66rem;
  font-size:.76rem;font-weight:600;color:#F0DCD4;text-decoration:none;
  border:1px solid rgba(255,107,74,.5);
  background:linear-gradient(100deg,rgba(255,107,74,.22),rgba(255,107,74,.05));
  border-radius:2px;white-space:nowrap;
  clip-path:polygon(0 0,100% 0,100% 100%,8px 100%,0 calc(100% - 8px));
  transition:border-color .2s ease,background .2s ease;
}
.route-hint:hover{
  color:#FFF;
  border-color:var(--coral);
  background:linear-gradient(100deg,rgba(255,107,74,.34),rgba(255,107,74,.1));
}
.route-hint__step{font-family:var(--mono);letter-spacing:.04em}
.route-hint__step--strong{color:var(--coral);font-weight:800}
.route-hint__arrow{color:var(--muted)}
.nav-toggle{
  display:none;align-items:center;gap:.5rem;
  padding:.5rem .66rem;
  font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;
  color:var(--cyan-soft);
  background:rgba(53,230,208,.07);
  border:1px solid var(--line);border-radius:2px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--cyan)}
.nav-toggle__bar{position:relative;display:block;width:16px;height:1px;background:currentColor}
.nav-toggle__bar::before,.nav-toggle__bar::after{
  content:"";position:absolute;left:0;width:16px;height:1px;background:currentColor;
  transition:transform .24s ease;
}
.nav-toggle__bar::before{top:-5px}
.nav-toggle__bar::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after{transform:translateY(-5px) rotate(-45deg)}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(3rem,7vw,6rem);
  color:var(--text);
  background:linear-gradient(180deg,rgba(12,36,56,.62),rgba(6,24,38,.96) 46%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan) 22%,var(--cyan-soft) 50%,var(--coral) 78%,transparent);
  opacity:.75;
}
.site-footer__inner{padding-block:clamp(2.2rem,5vw,3.6rem) 1.3rem}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:clamp(1.4rem,3vw,2.6rem);
}
.footer-col{min-width:0}
.footer-col__title{
  display:flex;align-items:baseline;gap:.45rem;
  margin-bottom:.95rem;
  font-family:var(--mono);font-size:.7rem;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--cyan-soft);
}
.footer-col__idx{color:var(--coral)}
.footer-list{display:flex;flex-direction:column;gap:.5rem}
.footer-list a{
  color:#B9CFDB;text-decoration:none;font-size:.9rem;
  transition:color .18s ease;
}
.footer-list a:hover{color:var(--cyan)}
.footer-blurb{margin-top:0;color:var(--muted);font-size:.88rem;max-width:32ch}
.footer-status{
  display:inline-flex;align-items:center;gap:.45rem;
  margin-top:.85rem;
  font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;color:var(--cyan-soft);
}
.footer-row{
  display:grid;grid-template-columns:auto minmax(0,1fr);
  gap:.15rem .6rem;
  padding-block:.34rem;
  border-bottom:1px dashed rgba(126,150,168,.16);
  font-size:.84rem;
}
.footer-row:last-of-type{border-bottom:0}
.footer-row__label{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);padding-top:.12rem;
}
.footer-row__value{color:#CBDEE8;word-break:break-word}
.footer-badge{
  display:inline-block;margin-top:.85rem;
  padding:.24rem .55rem;
  font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;
  color:var(--cyan-soft);
  border:1px solid var(--line);
  background:rgba(53,230,208,.06);
  border-radius:2px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:.4rem 1.4rem;
  margin-top:clamp(1.6rem,3vw,2.4rem);
  padding-top:1rem;
  border-top:1px solid rgba(126,150,168,.2);
  font-family:var(--mono);font-size:.72rem;letter-spacing:.05em;color:var(--muted);
}
.footer-bottom__copy,.footer-bottom__meta{margin:0}

/* ---------- shared components ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:var(--mono);font-size:.7rem;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:18px;height:1px;background:currentColor}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:.4rem;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;
  color:var(--muted);
}
.breadcrumb li{display:flex;align-items:center;gap:.4rem}
.breadcrumb li + li::before{content:"/";color:rgba(126,150,168,.55)}
.breadcrumb a{color:#B9CFDB;text-decoration:none}
.breadcrumb a:hover{color:var(--cyan)}

.index-rail{
  position:relative;
  padding-block:.9rem;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:rgba(12,36,56,.45);
}
.index-rail__list{display:flex;flex-wrap:wrap;gap:.35rem clamp(.6rem,2vw,1.6rem)}
.index-rail__link{
  display:inline-flex;align-items:baseline;gap:.42rem;
  padding:.2rem 0;
  font-size:.82rem;font-weight:600;color:#B9CFDB;text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.index-rail__link::before{
  content:attr(data-index);
  font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;
  color:rgba(143,247,236,.55);
}
.index-rail__link:hover{color:var(--cyan-soft);border-color:rgba(53,230,208,.45)}
.index-rail__link[aria-current="true"]{
  color:var(--cyan);border-color:var(--cyan);
}

.split-band{
  position:relative;overflow:hidden;
  padding-block:clamp(2.6rem,7vw,5.5rem);
  border-block:1px solid var(--line);
}
.split-band::before{
  content:"";position:absolute;z-index:0;
  inset:-30% -10% auto auto;width:min(62%,720px);height:150%;
  background:linear-gradient(150deg,rgba(53,230,208,.20),rgba(18,50,74,.05) 62%,transparent);
  transform:skewX(-14deg);
  pointer-events:none;
}
.split-band::after{
  content:"";position:absolute;z-index:0;
  left:-6%;bottom:-42%;width:min(52%,520px);height:92%;
  background:linear-gradient(200deg,rgba(255,107,74,.28),transparent 70%);
  transform:skewX(-14deg);
  pointer-events:none;
}
.split-band > *{position:relative;z-index:1}

.panel{
  padding:clamp(1.1rem,2.4vw,1.9rem);
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.panel--glass{
  background:rgba(18,50,74,.58);
  border-color:rgba(143,247,236,.26);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  backdrop-filter:blur(14px) saturate(1.2);
  box-shadow:var(--shadow);
}
.panel--paper{
  background:var(--paper);color:var(--paper-ink);
  border-color:rgba(10,16,20,.14);
}
.panel--paper h2,.panel--paper h3,.panel--paper strong{color:var(--paper-ink)}
.panel--paper a{color:#0A5C55}

.card{
  display:flex;flex-direction:column;gap:.5rem;
  padding:clamp(1rem,2vw,1.4rem);
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(53,230,208,.55);background:var(--ink-700)}
.card__index{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.18em;
  color:rgba(143,247,236,.7);
}
.card__title{font-size:1.06rem;font-weight:800;letter-spacing:-.01em;margin:0;color:#F4FBFD}
.card__body{margin:0;font-size:.9rem;color:#B9CFDB;max-width:34em}
.card__meta{
  margin-top:auto;
  font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;color:var(--muted);
}

.chip{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.16rem .5rem;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;
  border:1px solid var(--line-soft);border-radius:2px;
  color:#CBDEE8;background:rgba(12,36,56,.6);
}
.chip--cyan{border-color:rgba(53,230,208,.55);color:var(--cyan-soft);background:rgba(53,230,208,.1)}
.chip--coral{border-color:rgba(255,107,74,.55);color:#FFC3B4;background:rgba(255,107,74,.12)}
.chip--red{border-color:var(--red);color:#FFD9D9;background:var(--red)}
.chip--yellow{border-color:var(--yellow);color:#241C00;background:var(--yellow)}

.tag{
  font-family:var(--mono);font-size:.66rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted);
}

.dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--muted);flex:none;
}
.dot--cyan{background:var(--cyan);box-shadow:0 0 10px rgba(53,230,208,.85)}
.dot--coral{background:var(--coral);box-shadow:0 0 10px rgba(255,107,74,.7)}
.dot--red{background:var(--red)}
.dot--yellow{background:var(--yellow)}

.score{
  display:block;
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(2.2rem,6vw,3.5rem);
  font-weight:700;letter-spacing:-.04em;line-height:1;
  color:var(--cyan);
}
.score--sm{font-size:clamp(1.3rem,2.4vw,1.8rem);letter-spacing:-.02em}

.score-dock{
  position:sticky;top:calc(var(--header-h) + 18px);
  padding:1.05rem 1.1rem 1.2rem;
  background:rgba(18,50,74,.62);
  border:1px solid rgba(143,247,236,.28);
  border-radius:var(--radius);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  backdrop-filter:blur(14px) saturate(1.2);
  box-shadow:var(--shadow);
  animation:dockPulse 4.2s ease-in-out infinite;
}
@keyframes dockPulse{
  0%,100%{box-shadow:0 0 0 1px rgba(53,230,208,.22),var(--shadow)}
  50%{box-shadow:0 0 0 1px rgba(53,230,208,.62),var(--shadow)}
}

.capsule-column{
  position:sticky;top:calc(var(--header-h) + 18px);
  display:flex;flex-direction:column;gap:.42rem;
  padding:.85rem .1rem .85rem .9rem;
  border-left:1px solid var(--line);
}
.capsule{
  appearance:none;text-align:left;
  padding:.46rem .85rem;
  font-size:.84rem;font-weight:600;color:#B9CFDB;
  background:rgba(12,36,56,.72);
  border:1px solid var(--line-soft);border-radius:999px;
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.capsule:hover{color:var(--cyan-soft);border-color:rgba(53,230,208,.5)}
.capsule[aria-pressed="true"]{
  color:#03120F;background:var(--cyan);
  border-color:var(--cyan);font-weight:800;
}

.tabs{display:flex;flex-direction:column;gap:1rem}
.tabs__list{
  display:flex;flex-wrap:wrap;gap:.35rem;
  padding-bottom:.55rem;
  border-bottom:1px solid var(--line);
}
.tabs__btn{
  appearance:none;cursor:pointer;
  padding:.46rem .85rem;
  font-size:.84rem;font-weight:600;color:#B9CFDB;
  background:transparent;
  border:1px solid var(--line-soft);border-radius:2px;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.tabs__btn:hover{color:var(--cyan-soft);border-color:rgba(53,230,208,.5)}
.tabs__btn[aria-selected="true"]{
  color:var(--ink-900);background:var(--cyan);
  border-color:var(--cyan);font-weight:800;
}
.tabs__panel{padding-top:.2rem}

.accordion{border-top:1px solid var(--line)}
.accordion__item{border-bottom:1px solid var(--line)}
.accordion__btn{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  width:100%;padding:.95rem .1rem;
  font-size:.96rem;font-weight:700;color:#E6F1F7;
  background:transparent;border:0;cursor:pointer;text-align:left;
}
.accordion__btn::after{
  content:"+";
  font-family:var(--mono);font-size:1.1rem;color:var(--cyan);
  transition:transform .2s ease;
}
.accordion__btn:hover{color:var(--cyan-soft)}
.accordion__btn[aria-expanded="true"]::after{content:"–";transform:rotate(180deg)}
.accordion__panel{padding:.1rem .1rem 1.1rem;font-size:.92rem;color:#B9CFDB}
.accordion__panel p{max-width:40em}

.media-frame{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);border-radius:var(--radius);
  background:
    repeating-linear-gradient(0deg,rgba(143,247,236,.09) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(90deg,rgba(143,247,236,.09) 0 1px,transparent 1px 48px),
    radial-gradient(120% 90% at 24% 12%,rgba(53,230,208,.22),transparent 62%),
    linear-gradient(160deg,#0E2C43,#061826 78%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--portrait{aspect-ratio:4/5}
.media-frame__img{width:100%;height:100%;object-fit:cover;display:block}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:.6rem .8rem;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;color:var(--cyan-soft);
  background:linear-gradient(0deg,rgba(6,24,38,.92),rgba(6,24,38,0));
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  padding:.72rem 1.15rem;
  font-size:.86rem;font-weight:800;letter-spacing:.01em;
  text-decoration:none;cursor:pointer;
  border:1px solid transparent;border-radius:2px;
  clip-path:polygon(0 0,100% 0,100% 100%,9px 100%,0 calc(100% - 9px));
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--coral);color:#190800}
.btn--primary:hover{background:#FF8567;color:#190800}
.btn--ghost{
  background:rgba(53,230,208,.06);color:var(--cyan-soft);
  border-color:rgba(53,230,208,.5);
}
.btn--ghost:hover{background:rgba(53,230,208,.14);color:#FFF}
.btn--quiet{
  background:transparent;color:var(--cyan-soft);
  border:0;border-bottom:1px solid rgba(53,230,208,.5);
  clip-path:none;padding:.35rem 0;border-radius:0;
}
.btn--quiet:hover{color:#FFF;border-color:var(--cyan)}

/* ---------- motion utilities ---------- */
.js [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .5s ease,transform .5s ease;
}
.js [data-reveal].is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .site-header__inner{grid-template-columns:auto minmax(0,1fr) auto}
  .nav-toggle{display:inline-flex}
  .cmdbar{
    position:absolute;top:100%;left:0;right:0;
    display:none;
    padding:.6rem clamp(1rem,5vw,2rem) 1.1rem;
    background:linear-gradient(180deg,rgba(9,30,46,.99),rgba(6,24,38,.99));
    border-bottom:1px solid var(--line);
    box-shadow:0 34px 64px -34px #000;
    max-height:calc(100vh - 76px);
    overflow-y:auto;
  }
  .cmdbar[data-open="true"]{display:block;animation:navDrop .26s ease}
  @keyframes navDrop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
  .cmdbar__list{flex-direction:column;align-items:stretch;gap:2px}
  .cmdbar__link{
    justify-content:flex-start;width:100%;
    padding:.72rem .7rem;font-size:.94rem;
    border-bottom:1px solid rgba(53,230,208,.1);
  }
  .cmdbar__link[aria-current="page"]{box-shadow:none}
  .header-tools{gap:.45rem}
  .score-dock,.capsule-column{position:static}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--three{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--asym{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:760px){
  :root{--header-h:64px}
  .brand__mark{width:30px;height:30px}
  .brand__meta{display:none}
  .route-hint{padding:.4rem .6rem;font-size:.72rem}
  .grid--two,.grid--three{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:1.8rem}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .capsule-column{
    flex-direction:row;overflow-x:auto;
    padding:0 0 .8rem;
    border-left:0;border-top:1px solid var(--line);
    scrollbar-width:thin;
  }
  .capsule{flex:none}
  .media-frame--wide{aspect-ratio:16/9}
}
@media (max-width:520px){
  .nav-toggle__label{display:none}
  .nav-toggle{padding:.5rem .55rem}
  .route-hint__step--strong{color:var(--coral)}
  .index-rail__list{gap:.3rem .9rem}
  .footer-row{grid-template-columns:minmax(0,1fr);gap:0}
}

/* ---------- accessibility / motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .score-dock{animation:none}
  .card:hover,.btn:hover{transform:none}
}