/* =============================================================
   云体育主站 · 共享样式 /assets/site.css
   夜间球场数据驾驶舱：深空底 + 荧光青绿信号 + 看台橙红告警
   ============================================================= */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}

/* ---------- 2. tokens ---------- */
:root{
  --bg:#05070D;
  --panel:#0B1220;
  --card:#121B2E;
  --signal:#00F0B5;
  --alert:#FF4D2E;
  --amber:#FFB43C;
  --violet:#7A5CFF;
  --ink:#E4FBF4;
  --muted:#8FA3B8;
  --cream:#F2E8D5;
  --cream-ink:#3A2A1E;

  --line:rgba(143,163,184,.20);
  --line-soft:rgba(143,163,184,.12);
  --line-signal:rgba(0,240,181,.34);
  --glass:rgba(11,18,32,.55);
  --glass-deep:rgba(5,7,13,.94);
  --shadow:0 18px 48px rgba(0,0,0,.55);

  --font-display:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:var(--font-display);
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"DejaVu Sans Mono","Courier New",monospace;

  --header-h:76px;
  --quickbar-h:64px;
  --wrap:1240px;
  --radius:14px;
  --radius-lg:20px;
  --pad-x:clamp(16px,4vw,40px);
}

/* ---------- 3. base ---------- */
body{
  background-color:var(--bg);
  background-image:
    radial-gradient(58% 38% at 82% -4%,rgba(0,240,181,.10),transparent 70%),
    radial-gradient(46% 40% at 2% 18%,rgba(122,92,255,.10),transparent 72%),
    radial-gradient(40% 30% at 50% 108%,rgba(255,77,46,.07),transparent 70%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.76;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:800;line-height:1.16;letter-spacing:-.012em}
p{max-width:74ch}
strong{color:var(--ink);font-weight:700}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:4px}
#main-content{display:block}
::selection{background:rgba(0,240,181,.28);color:var(--ink)}

/* ---------- 4. skip link ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  transform:translateY(-180%);
  background:var(--signal);color:#04120D;
  padding:10px 16px;border-radius:10px;
  font-size:13px;font-weight:700;letter-spacing:.04em;
  transition:transform .18s ease;
}
.skip-link:focus{transform:none}

/* ---------- 5. header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(5,7,13,.32);
  -webkit-backdrop-filter:blur(12px) saturate(1.25);
  backdrop-filter:blur(12px) saturate(1.25);
  border-bottom:1px solid var(--line-soft);
  transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.site-header[data-scrolled="true"]{
  background:var(--glass-deep);
  border-bottom-color:var(--line-signal);
  box-shadow:0 14px 40px rgba(0,0,0,.55);
}
.header-scan{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:rgba(143,163,184,.14);overflow:hidden;
}
.scan-line{
  display:block;width:0;height:100%;
  background:linear-gradient(90deg,var(--signal),var(--violet));
  box-shadow:0 0 12px rgba(0,240,181,.7);
  transition:width .14s linear;
}
.header-inner{
  position:relative;z-index:3;
  width:100%;max-width:var(--wrap);margin:0 auto;
  display:flex;align-items:center;gap:clamp(12px,2vw,28px);
  min-height:var(--header-h);
  padding:10px var(--pad-x);
  transition:min-height .28s ease;
}
.site-header[data-scrolled="true"] .header-inner{min-height:62px}

.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  position:relative;width:36px;height:36px;flex:0 0 auto;
  border-radius:11px;border:1px solid var(--line-signal);
  background:radial-gradient(circle at 28% 22%,rgba(0,240,181,.30),rgba(11,18,32,.92) 70%);
  display:grid;place-items:center;
}
.brand-mark::before{
  content:"";position:absolute;inset:6px;border-radius:6px;
  border:1px dashed rgba(143,163,184,.30);
}
.brand-pulse{
  width:8px;height:8px;border-radius:50%;background:var(--signal);
  animation:pulse 2.2s ease-out infinite;
}
.brand-text{display:grid;gap:2px;line-height:1.1}
.brand-name{font-family:var(--font-display);font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--ink)}
.brand-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase}

.nav{flex:1 1 auto;display:flex;justify-content:center}
.nav-list{display:flex;align-items:center;gap:clamp(2px,1vw,14px);flex-wrap:nowrap}
.nav-item{display:list-item}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:9px 10px;font-size:14px;letter-spacing:.06em;
  color:var(--muted);white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:4px;height:1px;
  background:var(--signal);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--ink);font-weight:600}
.nav-link[aria-current="page"]::after{transform:scaleX(1);box-shadow:0 0 10px rgba(0,240,181,.8)}
.nav-link[aria-current="page"]::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:var(--signal);box-shadow:0 0 8px rgba(0,240,181,.9);
}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:8px 12px;border:1px solid var(--line);border-radius:12px;
  background:rgba(11,18,32,.6);color:var(--ink);
  font-size:12px;letter-spacing:.1em;
}
.nav-toggle-bars{display:grid;gap:3px;width:16px}
.nav-toggle-bars span{display:block;height:1.5px;border-radius:2px;background:var(--signal);transition:transform .2s ease,opacity .2s ease}
.nav-toggle-label{font-size:11px;letter-spacing:.12em;color:var(--muted)}
.site-header[data-open] .nav-toggle-bars span:nth-child(1){transform:translateY(4.5px) rotate(45deg)}
.site-header[data-open] .nav-toggle-bars span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle-bars span:nth-child(3){transform:translateY(-4.5px) rotate(-45deg)}
.nav-scrim{display:none}

/* ---------- 6. buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:999px;
  border:1px solid transparent;
  font-family:var(--font-body);font-size:13.5px;font-weight:600;letter-spacing:.06em;
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn--primary{background:var(--signal);color:#04120D;border-color:var(--signal)}
.btn--primary:hover{box-shadow:0 0 26px rgba(0,240,181,.45);transform:translateY(-1px)}
.btn--ghost{background:rgba(11,18,32,.45);color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--line-signal);color:var(--signal)}
.btn--alert{background:var(--alert);color:#1B0703;border-color:var(--alert)}
.btn--alert:hover{box-shadow:0 0 24px rgba(255,77,46,.45);transform:translateY(-1px)}
.btn--small{padding:7px 13px;font-size:12.5px}
.btn--block{width:100%}

/* ---------- 7. layout helpers ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--pad-x)}
.below-header{margin-top:var(--header-h)}
.section{padding:clamp(48px,7vw,104px) 0}
.section--tight{padding:clamp(30px,4vw,56px) 0}
.section--panel{background:linear-gradient(180deg,rgba(11,18,32,.9),rgba(5,7,13,.2))}
.section--cream{background:var(--cream);color:var(--cream-ink)}
.section--cream .lede{color:#5B4534}
.section--cream .meta{color:#7A6350}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:18px;margin-bottom:clamp(22px,3vw,38px);
}
.grid{display:grid;gap:clamp(16px,2vw,28px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid--cards{grid-template-columns:repeat(auto-fill,minmax(248px,1fr))}
.grid--split{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr)}
.stack{display:grid;gap:var(--stack-gap,16px)}

/* ---------- 8. typography blocks ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--signal);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--signal);flex:0 0 auto}
.h-display{font-size:clamp(40px,7.4vw,84px);line-height:1.02;letter-spacing:-.02em}
.h-section{font-size:clamp(24px,3.4vw,40px);line-height:1.14}
.lede{font-size:clamp(15px,1.5vw,18px);line-height:1.8;color:#B9CBD9;max-width:36em}
.meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.num{font-family:var(--font-mono);font-weight:700;letter-spacing:.05em;font-variant-numeric:tabular-nums}
.num--signal{color:var(--signal)}
.num--alert{color:var(--alert)}
.num--gold{color:var(--amber)}
.editorial{
  background:var(--cream);color:var(--cream-ink);
  border-radius:var(--radius-lg);padding:clamp(22px,3.4vw,46px);
}
.editorial h2,.editorial h3{color:var(--cream-ink)}
.editorial p{color:#4A3627}
.editorial a{color:#8C3B14;text-decoration:underline;text-underline-offset:3px}

/* ---------- 9. surfaces & texture ---------- */
.glass-panel{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  backdrop-filter:blur(14px) saturate(1.2);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(18px,2.4vw,30px);
}
.coord-grid{
  background-image:
    linear-gradient(rgba(0,240,181,.075) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,240,181,.075) 1px,transparent 1px);
  background-size:56px 56px;
}

/* ---------- 10. data components ---------- */
.data-card{
  position:relative;overflow:hidden;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:18px 20px;
  display:grid;gap:10px;align-content:start;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.data-card::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:var(--signal);opacity:.55;
}
.data-card:hover{transform:translateY(-2px);border-color:var(--line-signal);box-shadow:0 16px 36px rgba(0,0,0,.45)}
.data-card--live::before{background:var(--alert);opacity:.95}
.data-card__head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.data-card__title{font-size:15px;font-weight:700;letter-spacing:.02em}
.data-card__num{font-family:var(--font-mono);font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:.06em;font-variant-numeric:tabular-nums}
.data-card__meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}

.stat-row{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:12px;overflow:hidden;
}
.stat{background:var(--panel);padding:16px 18px;display:grid;gap:6px}
.stat__value{font-family:var(--font-mono);font-size:26px;font-weight:700;color:var(--signal);font-variant-numeric:tabular-nums}
.stat__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}

.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--muted);vertical-align:middle}
.status-dot--live{background:var(--alert);animation:livepulse 1.6s ease-out infinite}
.status-dot--ok{background:var(--signal);box-shadow:0 0 10px rgba(0,240,181,.8)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);color:var(--muted);background:rgba(143,163,184,.06);
}
.tag--gold{color:var(--amber);border-color:rgba(255,180,60,.35);background:rgba(255,180,60,.08)}
.tag--live{color:var(--alert);border-color:rgba(255,77,46,.35);background:rgba(255,77,46,.08)}
.tag--signal{color:var(--signal);border-color:rgba(0,240,181,.32);background:rgba(0,240,181,.07)}

.pill-group{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  font-family:var(--font-body);font-size:12.5px;letter-spacing:.08em;
  padding:7px 14px;border-radius:999px;
  border:1px solid var(--line);color:var(--muted);background:rgba(11,18,32,.5);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.pill:hover{color:var(--ink);border-color:var(--line-signal)}
.pill[aria-pressed="true"]{background:var(--signal);border-color:var(--signal);color:#04120D;font-weight:600}

.fold{
  border:1px solid var(--line);border-radius:12px;background:var(--panel);
  overflow:hidden;
}
.fold+.fold{margin-top:10px}
.fold__head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 18px;text-align:left;color:var(--ink);
  font-family:var(--font-body);font-size:15px;font-weight:600;letter-spacing:.02em;
}
.fold__title{display:block}
.fold__icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line-signal);color:var(--signal);
  display:grid;place-items:center;font-family:var(--font-mono);font-size:13px;line-height:1;
}
.fold__icon::before{content:"+"}
.fold[data-open] .fold__icon::before{content:"–"}
.fold__panel{display:none;padding:0 18px 18px;color:var(--muted);font-size:15px}
.fold[data-open] .fold__panel{display:block}
.fold__body{max-width:36em}

/* ---------- 11. figure frames ---------- */
.figure-frame{
  position:relative;overflow:hidden;aspect-ratio:16/9;
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(150deg,#0B1220,#05070D 62%);
}
.figure-frame::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:
    linear-gradient(rgba(0,240,181,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,240,181,.09) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
}
.figure-frame::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;z-index:2;
  background:linear-gradient(90deg,transparent,var(--signal),transparent);
  opacity:.7;
}
.figure-frame img{width:100%;height:100%;object-fit:cover}
.figure-frame--wide{aspect-ratio:21/9}
.figure-frame--tall{aspect-ratio:3/4}
.figure-frame--square{aspect-ratio:1/1}
.figure-caption{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);margin-top:10px;
}

/* ---------- 12. breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);
}
.breadcrumb a{color:var(--muted);transition:color .18s ease}
.breadcrumb a:hover{color:var(--signal)}
.breadcrumb__sep{color:rgba(143,163,184,.5)}

/* ---------- 13. footer ---------- */
.site-footer{
  position:relative;margin-top:clamp(40px,7vw,90px);
  background:linear-gradient(180deg,rgba(5,7,13,.4),var(--panel) 34%,var(--bg));
  border-top:1px solid var(--line);
}
.footer-inner{width:100%;max-width:var(--wrap);margin:0 auto;padding:clamp(38px,5vw,64px) var(--pad-x) 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:clamp(20px,3vw,48px)}
.footer-col{display:grid;gap:12px;align-content:start}
.footer-brand{display:inline-flex;align-items:center;gap:10px}
.footer-brand-name{font-family:var(--font-display);font-size:18px;font-weight:800;letter-spacing:.02em;color:var(--ink)}
.footer-tagline{font-size:13.5px;color:var(--muted);max-width:30ch;line-height:1.8}
.footer-live{
  display:inline-flex;align-items:center;gap:8px;justify-self:start;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--signal);border:1px solid rgba(0,240,181,.3);background:rgba(0,240,181,.06);
  padding:5px 12px;border-radius:999px;
}
.footer-live .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);animation:pulse 2s ease-out infinite}
.footer-heading{
  font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted);
}
.footer-list{display:grid;gap:9px}
.footer-link{font-size:14px;color:rgba(228,251,244,.84);transition:color .18s ease}
.footer-link:hover{color:var(--signal)}
.footer-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.footer-value{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;color:var(--muted);word-break:break-all}
.footer-note{font-size:12px;line-height:1.75;color:var(--muted);max-width:36ch}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:clamp(28px,4vw,44px);padding-top:18px;border-top:1px solid var(--line);
}
.footer-legal{font-size:12.5px;color:var(--muted);max-width:none}
.icp{color:#A9BACB;font-family:var(--font-mono);letter-spacing:.08em}

/* ---------- 14. motion ---------- */
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(0,240,181,.55)}
  70%{box-shadow:0 0 0 10px rgba(0,240,181,0)}
  100%{box-shadow:0 0 0 0 rgba(0,240,181,0)}
}
@keyframes livepulse{
  0%{box-shadow:0 0 0 0 rgba(255,77,46,.6)}
  70%{box-shadow:0 0 0 9px rgba(255,77,46,0)}
  100%{box-shadow:0 0 0 0 rgba(255,77,46,0)}
}
.reveal{opacity:1;transform:none}
html[data-motion="on"] .reveal{
  opacity:0;transform:translateY(14px);
  transition:opacity .42s ease,transform .42s ease;
}
html[data-motion="on"] .reveal.is-in{opacity:1;transform:none}

/* ---------- 15. tablet & mobile ---------- */
@media (max-width:1180px){
  .btn--account{display:none}
}
@media (max-width:980px){
  .grid--split{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:880px){
  :root{--header-h:0px}
  body{padding-bottom:calc(var(--quickbar-h) + env(safe-area-inset-bottom,0px))}
  .site-header{
    top:auto;bottom:0;
    background:rgba(5,7,13,.95);
    -webkit-backdrop-filter:blur(18px) saturate(1.2);
    backdrop-filter:blur(18px) saturate(1.2);
    border-bottom:0;border-top:1px solid var(--line);
    box-shadow:0 -16px 40px rgba(0,0,0,.55);
  }
  .site-header[data-scrolled="true"]{border-top-color:var(--line-signal)}
  .header-scan{top:0;bottom:auto}
  .header-inner{
    min-height:var(--quickbar-h);
    padding:8px 12px;gap:8px;justify-content:space-between;
  }
  .site-header[data-scrolled="true"] .header-inner{min-height:var(--quickbar-h)}
  .brand{gap:8px}
  .brand-mark{width:30px;height:30px;border-radius:9px}
  .brand-mark::before{inset:5px}
  .brand-name{font-size:14px}
  .brand-sub{display:none}

  .nav{order:2;flex:1 1 auto;display:flex;justify-content:center}
  .nav-list{flex-direction:row;gap:2px}
  .nav-item:not(.is-quick){display:none}
  .nav-link{padding:8px 9px;font-size:12.5px;letter-spacing:.02em}
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]::before{display:none}
  .nav-link[aria-current="page"]{
    color:var(--signal);background:rgba(0,240,181,.10);border-radius:9px;font-weight:600;
  }
  .header-actions{order:3;gap:6px}
  .btn--subscribe{padding:9px 13px;font-size:12.5px}
  .nav-toggle{order:4;display:inline-flex}

  .nav-scrim{
    display:block;position:fixed;inset:0;z-index:1;
    background:rgba(5,7,13,.72);
    opacity:0;pointer-events:none;transition:opacity .22s ease;
  }
  .site-header[data-open] .nav-scrim{opacity:1;pointer-events:auto}
  .site-header[data-open] .nav{
    position:fixed;z-index:2;left:0;right:0;top:auto;
    bottom:calc(var(--quickbar-h) + env(safe-area-inset-bottom,0px));
    display:block;padding:12px;max-height:70vh;overflow-y:auto;
    background:rgba(11,18,32,.98);
    border-top:1px solid var(--line-signal);
    border-radius:18px 18px 0 0;
    box-shadow:0 -24px 60px rgba(0,0,0,.7);
  }
  .site-header[data-open] .nav-list{flex-direction:column;gap:4px;align-items:stretch}
  .site-header[data-open] .nav-item{display:list-item}
  .site-header[data-open] .nav-link{
    display:flex;width:100%;padding:13px 14px;
    font-size:15px;color:var(--ink);
    border:1px solid var(--line-soft);border-radius:12px;
  }
  .site-header[data-open] .nav-link:hover{border-color:var(--line-signal);color:var(--signal)}
}
@media (max-width:620px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .glass-panel{padding:16px}
}
@media (max-width:420px){
  .brand-mark{display:none}
  .brand-name{font-size:13px}
  .btn--subscribe{padding:8px 11px;font-size:12px;letter-spacing:.02em}
  .nav-link{padding:8px 7px;font-size:12px}
}

/* ---------- 16. reduced 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;
  }
  html[data-motion="on"] .reveal{opacity:1;transform:none}
  .scan-line{transition:none}
}