/* ============================================================
   TetherCrypto.club — stylesheet (reviewed / hardened build)
   Fixes vs. original:
   - Mobile nav available across the whole 0–1050px range
   - Mobile nav positions itself below the header (JS --header-bottom)
   - Hero coin paint order corrected (filter flattens preserve-3d)
   - Gold orb centring no longer destroyed by the float animation
   - Seamless ticker (duplicated set) + pause control
   - -webkit- prefixes for backdrop-filter / mask-image (Safari)
   - WCAG AA contrast on 4 previously failing text styles
   - Visible :focus-visible rings + skip link
   - prefers-reduced-motion support
   ============================================================ */

:root{
  --bg:#f5f7f6;
  --paper:#fff;
  --ink:#071411;
  --muted:#515e5a;          /* was #5d6a66 */
  --muted-dark:#4a5651;
  --teal:#12a88b;
  --teal2:#007f6b;
  --line:rgba(7,20,17,.11);
  --dark:#06110f;
  --gold:#d9a93d;
  --max:1240px;
  --header-bottom:140px;    /* runtime-updated by script.js */
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  line-height:1.55;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
ul{list-style:none;margin:0;padding:0}
button{font:inherit}

/* --- focus visibility (keyboard accessibility) --- */
:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:4px}
.dark-section :focus-visible,.hero :focus-visible,.cta :focus-visible,
footer :focus-visible,.banner :focus-visible,.split-visual :focus-visible{outline-color:#5ee1c3}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--ink);color:#fff;padding:12px 20px;border-radius:0 0 8px 0;font-weight:700;font-size:14px;
}
.skip-link:focus{left:0}

/* --- disclaimer --- */
.disclaimer{
  position:relative;z-index:50;background:#06110f;color:#dde9e5;
  padding:10px 24px;text-align:center;font-size:12.5px;letter-spacing:.01em;
}
.disclaimer span{color:#fff;font-weight:700}
.disclaimer a{margin-left:14px;color:#7cead0;text-decoration:underline}

/* --- header --- */
.site-header{
  position:sticky;top:0;z-index:40;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:15px 4.5vw;background:rgba(245,247,246,.9);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .site-header{background:#f5f7f6}
}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-family:"Space Grotesk",Inter,sans-serif}
.brand img{width:38px;height:38px;object-fit:contain}
.brand>span{font-size:20px}
.brand>span span{color:var(--teal2)}
.brand small{font-size:12px;color:#5f6b67;margin-left:2px}
.desktop-nav{display:flex;gap:26px;font-size:13px;font-weight:600}
.desktop-nav a{opacity:.86}
.desktop-nav a:hover{opacity:1;color:var(--teal2)}
.header-actions{display:flex;align-items:center;gap:17px}
.text-link{font-size:13px;font-weight:600}

/* --- buttons --- */
.btn,.ghost-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:14px;
  border-radius:999px;padding:14px 20px;font-weight:800;font-size:13px;
  transition:background .25s,color .25s,transform .25s;cursor:pointer;
  min-height:44px;                      /* touch target */
}
.btn{background:var(--ink);color:#fff;box-shadow:0 12px 30px rgba(7,20,17,.14);border:0}
.btn:hover{transform:translateY(-2px);background:var(--teal2)}
.btn-sm{padding:10px 16px}
.ghost-btn{border:1px solid rgba(255,255,255,.3);color:#fff;background:rgba(255,255,255,.06)}
.ghost-btn:hover{background:#fff;color:var(--ink)}
.btn.light{background:#fff;color:var(--ink)}

/* --- hamburger --- */
.menu-btn{
  display:none;border:0;background:none;padding:10px;cursor:pointer;
  width:44px;height:44px;align-items:center;justify-content:center;
}
.menu-icon{position:relative}
.menu-icon,.menu-icon::before,.menu-icon::after{
  display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .25s,opacity .25s;
}
.menu-icon::before,.menu-icon::after{content:"";position:absolute}
.menu-icon::before{transform:translateY(-7px)}
.menu-icon::after{transform:translateY(7px)}
.menu-btn[aria-expanded="true"] .menu-icon{background:transparent}
.menu-btn[aria-expanded="true"] .menu-icon::before{transform:rotate(45deg)}
.menu-btn[aria-expanded="true"] .menu-icon::after{transform:rotate(-45deg)}

/* --- mobile nav (base = hidden; shown via [hidden] removal) --- */
.mobile-nav{display:none}
.mobile-nav[hidden]{display:none}

/* --- hero --- */
.hero{
  min-height:720px;position:relative;overflow:hidden;
  background:#06110f;color:#fff;display:flex;align-items:center;padding:90px 7vw 110px;
}
.hero-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 76% 44%,rgba(18,168,139,.3),transparent 28%),
    linear-gradient(120deg,#06110f 0%,#0a211d 58%,#06110f 100%);
}
.hero-grid{
  position:absolute;inset:0;opacity:.14;
  background-image:
    linear-gradient(rgba(255,255,255,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:80px 80px;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 82%);
  mask-image:linear-gradient(90deg,#000,transparent 82%);
}
.hero-copy{position:relative;z-index:5;max-width:660px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;margin:0;
  border:1px solid rgba(255,255,255,.18);padding:8px 12px;border-radius:99px;
  background:rgba(255,255,255,.05);font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:#b4d1cb;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:#52e4c2;box-shadow:0 0 14px #52e4c2;flex:0 0 auto}
.hero h1{
  font-family:"Space Grotesk",Inter,sans-serif;
  font-size:clamp(46px,7vw,104px);line-height:.98;letter-spacing:-.055em;margin:28px 0;
  text-wrap:balance;
}
.hero h1 em{font-style:normal;color:#57dfc1;display:block}
.hero-lead{font-size:clamp(16px,1.4vw,18px);line-height:1.65;color:#bed2cc;max-width:600px}
.hero-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:34px;margin-top:55px}
.hero-meta li{display:grid;gap:2px}
.hero-meta strong{font-family:"Space Grotesk",Inter,sans-serif;font-size:16px}
.hero-meta span{font-size:10px;color:#8ba7a0;text-transform:uppercase;letter-spacing:.12em}

/* --- 3D coin ---
   NOTE: `filter` on .coin-3d flattens the 3D rendering context, so translateZ
   no longer controls paint order. Order is therefore handled by DOM order +
   z-index, and the edge is rendered *before* the face.                        */
.coin-stage{
  position:absolute;right:-5vw;top:50%;transform:translateY(-50%);
  width:min(58vw,780px);height:680px;perspective:1200px;pointer-events:none;
}
.coin-3d{
  position:absolute;width:min(40vw,460px);aspect-ratio:1;left:25%;top:15%;
  transform-style:preserve-3d;animation:float 7s ease-in-out infinite;
  filter:drop-shadow(0 40px 50px rgba(0,0,0,.5));
}
.coin-face{
  position:absolute;inset:0;z-index:2;border-radius:50%;overflow:hidden;
  border:7px solid rgba(220,240,236,.7);
  box-shadow:inset 0 0 35px rgba(0,0,0,.45),0 0 0 1px rgba(0,0,0,.2);
}
.coin-face picture,.coin-face img{width:100%;height:100%;object-fit:cover;object-position:center}
.coin-edge{
  position:absolute;inset:0;z-index:1;border-radius:50%;
  background:repeating-conic-gradient(from 0deg,#536864 0 2deg,#d2ddd9 2.5deg 4deg,#2a403b 4.5deg 6deg);
}
.orbital{position:absolute;border:1px solid rgba(104,232,203,.25);border-radius:50%}
.orbital-a{width:650px;height:220px;left:10%;top:32%;transform:rotateX(68deg) rotateZ(-18deg);animation:spinA 13s linear infinite}
.orbital-b{width:540px;height:180px;left:18%;top:38%;transform:rotateX(72deg) rotateZ(30deg);animation:spinB 18s linear infinite}
.floating-tag{
  position:absolute;z-index:3;margin:0;padding:10px 14px;border-radius:12px;
  background:rgba(7,22,19,.72);border:1px solid rgba(116,232,207,.18);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  font-size:10px;letter-spacing:.1em;color:#8defd7;box-shadow:0 18px 40px rgba(0,0,0,.22);
}
.floating-tag span{display:block;color:#9bb5af;font-size:9.5px;letter-spacing:0;margin-top:2px}
.tag-one{right:13%;top:22%}
.tag-two{left:7%;bottom:16%}

/* --- ticker --- */
.ticker{
  position:relative;background:#0b201c;color:#a7c0ba;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.ticker-viewport{overflow:hidden;white-space:nowrap}
.ticker-track{display:flex;width:max-content;animation:ticker 40s linear infinite}
.ticker.is-paused .ticker-track{animation-play-state:paused}
.ticker-set{display:flex;gap:26px;align-items:center;padding:13px 26px 13px 0;font-size:11px;letter-spacing:.08em}
.ticker b{color:#fff;margin-left:6px}
.ticker i{color:#35c6a6;font-style:normal}
.ticker .up{color:#56e0c1}
.ticker-pause{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);z-index:2;
  width:34px;height:34px;border-radius:50%;cursor:pointer;
  border:1px solid rgba(255,255,255,.2);background:rgba(11,32,28,.9);color:#8fe3cd;
  font-size:9px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.ticker-pause:hover{background:#12352e;color:#fff}

/* --- generic section --- */
.section{max-width:var(--max);margin-inline:auto;padding:130px 32px}
.section-label{
  font-size:10.5px;font-weight:800;letter-spacing:.18em;
  color:#5c6a65;text-transform:uppercase;margin:0;   /* contrast fixed */
}
.two-col,.transparency-head,.section-heading{
  display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end;
}
.section h2{
  font-family:"Space Grotesk",Inter,sans-serif;
  font-size:clamp(38px,5.5vw,78px);line-height:1.02;letter-spacing:-.05em;margin:20px 0;
  text-wrap:balance;
}
.section h2 span,.copy-panel h2 span,.gold h2 span,.section-heading h2 span{color:var(--teal2);display:block}
.lead{font-size:clamp(17px,1.5vw,19px);color:#4e5b57;max-width:590px}
.inline-link{
  display:inline-flex;gap:12px;font-weight:800;margin-top:20px;
  border-bottom:1px solid currentColor;padding-bottom:5px;width:max-content;
}
.two-col h2,.section-heading h2,.transparency-head h2{font-size:clamp(36px,4.1vw,62px)}
@media (max-width:1050px){
  .two-col h2,.section-heading h2,.transparency-head h2{font-size:clamp(36px,6.5vw,58px)}
}
.feature-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:80px;
  background:var(--line);border:1px solid var(--line);
}
.feature-card{background:var(--paper);padding:30px;min-height:240px}
.feature-card .icon{font-size:35px;color:var(--teal2);margin:0 0 40px;line-height:1}
.feature-card h3{font-family:"Space Grotesk",Inter,sans-serif;font-size:18px;margin:0 0 10px}
.feature-card p{color:var(--muted);font-size:13.5px;margin:0}

/* --- split visual --- */
.split-visual{display:grid;grid-template-columns:1.15fr .85fr;min-height:650px;background:#07120f;color:#fff}
.visual-panel{position:relative;overflow:hidden;min-height:650px}
.visual-panel picture{display:block;width:100%;height:100%}
.visual-panel img{width:100%;height:100%;object-fit:cover;opacity:.78}
.visual-panel::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 50%,#07120f 100%)}
.visual-overlay{position:absolute;z-index:2;left:7%;bottom:8%;display:grid;gap:8px;max-width:80%}
.visual-overlay span{font-size:10.5px;letter-spacing:.2em;color:#84e8ce;text-transform:uppercase}
.visual-overlay strong{font:700 clamp(26px,3vw,38px)/1.05 "Space Grotesk",Inter,sans-serif}
.copy-panel{padding:100px 8vw;align-self:center}
.copy-panel h2{font:700 clamp(38px,5vw,70px)/1 "Space Grotesk",Inter,sans-serif;letter-spacing:-.05em;text-wrap:balance}
.copy-panel p{color:#b0c2bc;max-width:500px}
.mini-stat-row{display:flex;flex-wrap:wrap;gap:30px;margin-top:45px}
.mini-stat-row li{display:grid;gap:2px}
.mini-stat-row b{font:700 28px "Space Grotesk",Inter,sans-serif;color:#fff}
.mini-stat-row span{font-size:10px;color:#7d9c94;text-transform:uppercase;letter-spacing:.14em}

/* --- process --- */
.process{background:#f5f7f6}
.process-line{display:grid;grid-template-columns:repeat(4,1fr);margin-top:80px;border-top:1px solid var(--line)}
.process-line article{padding:32px 28px 20px;border-right:1px solid var(--line);min-height:250px}
.process-line article:last-child{border-right:0}
.process-line span{display:block;font:700 12px "Space Grotesk",Inter,sans-serif;color:var(--teal2);margin-bottom:60px}
.process-line h3{font:700 22px "Space Grotesk",Inter,sans-serif;margin:0 0 10px}
.process-line p{font-size:13.5px;color:var(--muted);margin:0}

/* --- transparency --- */
.dark-section{background:#06110f;color:#fff;padding:120px max(32px,calc((100% - var(--max))/2))}
.dark-section .section-label{color:#8aa8a0}
.dark-section h2{font:700 clamp(38px,5vw,74px)/1.02 "Space Grotesk",Inter,sans-serif;letter-spacing:-.05em;margin:18px 0;text-wrap:balance}
.dark-section h2 span{color:#5ee1c3;display:block}
.dark-section p{color:#a9c0b9}
.data-cards{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:1px;background:rgba(255,255,255,.1);margin:65px 0 24px}
.data-card{background:#0a1c18;padding:30px;min-height:220px}
.data-card small{font-size:10px;letter-spacing:.17em;color:#82a199;text-transform:uppercase}
.data-card strong{display:block;font:700 clamp(28px,3.2vw,50px) "Space Grotesk",Inter,sans-serif;margin:32px 0 4px;overflow-wrap:break-word;hyphens:auto}
.data-card span{font-size:11.5px;color:#8ba69f}
.sparkline{height:35px;display:flex;align-items:flex-end;gap:5px;margin-top:18px}
.sparkline i{display:block;width:12px;background:#1cb493;border-radius:2px}
.sparkline i:nth-child(1){height:30%}.sparkline i:nth-child(2){height:52%}
.sparkline i:nth-child(3){height:40%}.sparkline i:nth-child(4){height:78%}
.sparkline i:nth-child(5){height:60%}.sparkline i:nth-child(6){height:90%}
.sparkline i:nth-child(7){height:70%}.sparkline i:nth-child(8){height:100%}
.data-status{font-size:11.5px;color:#8ba69f;margin:0 0 30px}

/* --- gold --- */
.gold{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.gold-card{
  height:500px;position:relative;overflow:hidden;border-radius:28px;
  background:radial-gradient(circle at 50% 42%,#d6af55 0,#7d5a16 22%,#19150b 50%,#070807 100%);
  box-shadow:0 35px 80px rgba(0,0,0,.18);
}
/* Centring is baked into the keyframes so the animation cannot clobber it. */
.gold-orb{
  position:absolute;width:min(60%,270px);aspect-ratio:1;border-radius:50%;left:50%;top:45%;
  background:radial-gradient(circle at 35% 30%,#fff2aa,#e0ad3b 34%,#8b641a 72%,#3c2a0b);
  box-shadow:inset -20px -25px 45px rgba(0,0,0,.4),0 30px 60px rgba(0,0,0,.4);
  animation:floatOrb 6s ease-in-out infinite;
}
.gold-card-copy{position:absolute;left:35px;right:35px;bottom:32px;color:#fff;z-index:2}
.gold-card-copy small{font-size:10px;letter-spacing:.18em;text-transform:uppercase}
.gold-card-copy strong{display:block;font:700 clamp(24px,2.4vw,30px)/1.1 "Space Grotesk",Inter,sans-serif;margin:10px 0}
.gold-card-copy span{font-size:11.5px;color:#dbd0b3}

/* --- news --- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:65px}
.news-card{background:#fff;border:1px solid var(--line);overflow:hidden;border-radius:20px;display:flex;flex-direction:column}
.news-card img{width:100%;height:190px;object-fit:cover}
.news-card>div{padding:24px;display:flex;flex-direction:column;flex:1}
.news-card small{font-size:10px;letter-spacing:.15em;color:#5f6d69;text-transform:uppercase}  /* contrast fixed */
.news-card h3{font:700 21px/1.15 "Space Grotesk",Inter,sans-serif;margin:12px 0 22px}
.news-card a{font-size:12.5px;font-weight:800;color:var(--teal2);margin-top:auto}

/* --- banner --- */
.banner{height:480px;position:relative;overflow:hidden}
.banner picture{display:block;width:100%;height:100%}
.banner img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) brightness(.6)}
.banner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,12,10,.92),rgba(3,12,10,.2))}
.banner-content{position:absolute;z-index:2;left:7%;right:7%;top:50%;transform:translateY(-50%);color:#fff}
.banner-content span{font-size:10.5px;letter-spacing:.2em;color:#7eeacd;text-transform:uppercase}
.banner-content h2{font:700 clamp(36px,6vw,82px)/1 "Space Grotesk",Inter,sans-serif;letter-spacing:-.05em;margin:12px 0 0;text-wrap:balance}
.banner-content em{color:#62e1c4;font-style:normal;display:block}

/* --- resources --- */
.resources{padding-bottom:100px}
.resource-grid{
  display:grid;grid-template-columns:repeat(4,1fr);margin-top:65px;
  border-top:1px solid var(--line);border-left:1px solid var(--line);
}
.resource-grid a{
  padding:25px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  min-height:180px;transition:background .2s,transform .2s;
}
.resource-grid a:hover{background:#fff;transform:translateY(-3px)}
.resource-grid span{display:block;color:var(--teal2);font:700 12px "Space Grotesk",Inter,sans-serif;margin-bottom:45px}
.resource-grid b{display:block;font:700 18px "Space Grotesk",Inter,sans-serif}
.resource-grid small{display:block;color:#5c6763;margin-top:7px;font-size:12.5px}  /* contrast fixed */

/* --- CTA --- */
.cta{
  position:relative;overflow:hidden;background:#0b201c;color:#fff;
  display:grid;grid-template-columns:130px 1fr auto;gap:40px;align-items:center;
  padding:90px max(32px,calc((100% - var(--max))/2));
}
.cta-glow{position:absolute;width:500px;height:500px;border-radius:50%;background:rgba(18,168,139,.22);filter:blur(70px);right:8%;top:-40%}
.cta-logo{width:95px;height:auto;position:relative;z-index:1}
.cta .section-label{color:#8aa8a0}
.cta h2{position:relative;z-index:1;font:700 clamp(36px,5vw,70px)/1 "Space Grotesk",Inter,sans-serif;letter-spacing:-.05em;margin:14px 0;text-wrap:balance}
.cta h2 span{color:#58dfc1;display:block}
.cta p{color:#a5bcb5;position:relative;z-index:1;margin:0}
.cta .btn{position:relative;z-index:2;background:#fff;color:#071411}

/* --- footer --- */
footer{background:#040b09;color:#a7b9b3;padding:70px 5vw 25px}
.footer-main{max-width:var(--max);margin-inline:auto;display:grid;grid-template-columns:1fr 1.5fr;gap:80px}
.footer-brand img{width:44px;height:44px;margin-bottom:20px}
.footer-brand strong{display:block;color:#fff;font:700 22px "Space Grotesk",Inter,sans-serif}
.footer-brand strong span{color:#42c9aa}
.footer-brand p{max-width:300px;font-size:12.5px}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.footer-links>div{display:grid;align-content:start;gap:11px}
.footer-links h2{color:#fff;font-size:12.5px;margin:0 0 8px;font-weight:700;letter-spacing:.04em}
.footer-links a{font-size:12px;color:#93a9a2}
.footer-links a:hover{color:#5ddfbe}
.footer-bottom{
  max-width:var(--max);margin:60px auto 0;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 20px;
  font-size:11px;color:#8b9d97;   /* contrast fixed */
}

/* --- animations --- */
@keyframes float{
  0%,100%{transform:translateY(0) rotateZ(-8deg) rotateY(-8deg)}
  50%{transform:translateY(-22px) rotateZ(-2deg) rotateY(8deg)}
}
@keyframes floatOrb{
  0%,100%{transform:translate(-50%,-50%)}
  50%{transform:translate(-50%,calc(-50% - 22px))}
}
@keyframes spinA{from{transform:rotateX(68deg) rotateZ(-18deg)}to{transform:rotateX(68deg) rotateZ(342deg)}}
@keyframes spinB{from{transform:rotateX(72deg) rotateZ(390deg)}to{transform:rotateX(72deg) rotateZ(30deg)}}
@keyframes ticker{from{transform:translate3d(0,0,0)}to{transform:translate3d(-50%,0,0)}}

/* ============================ RESPONSIVE ============================ */

@media (max-width:1050px){
  .desktop-nav{display:none}
  .menu-btn{display:inline-flex}
  .hero{min-height:auto;padding:70px 6vw 90px}
  .hero-copy{max-width:640px}

  /* Mobile nav is now live across the whole 0–1050px range.
     `top` is set at runtime from the real header height. */
  .mobile-nav{
    position:fixed;z-index:39;top:var(--header-bottom);left:0;right:0;
    max-height:calc(100dvh - var(--header-bottom));overflow-y:auto;
    background:rgba(245,247,246,.98);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    padding:18px 6vw 26px;display:none;flex-direction:column;gap:4px;
    border-bottom:1px solid var(--line);box-shadow:0 24px 40px rgba(7,20,17,.12);
  }
  .mobile-nav:not([hidden]){display:flex}
  .mobile-nav a{padding:12px 0;font-size:16px;font-weight:600;border-bottom:1px solid var(--line)}
  .mobile-nav a:last-child{border-bottom:0}

  .coin-stage{opacity:.5;right:-25vw}
  .two-col,.transparency-head,.section-heading{grid-template-columns:1fr;gap:24px;align-items:start}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .split-visual{grid-template-columns:1fr}
  .copy-panel{padding:80px 6vw}
  .process-line{grid-template-columns:repeat(2,1fr)}
  .process-line article:nth-child(2){border-right:0}
  .gold{grid-template-columns:1fr;gap:48px}
  .news-grid{grid-template-columns:1fr 1fr}
  .resource-grid{grid-template-columns:1fr 1fr}
  .cta{grid-template-columns:90px 1fr}
  .cta .btn{grid-column:2;width:max-content}
  .footer-main{grid-template-columns:1fr;gap:48px}
  .footer-links{max-width:650px}
}

@media (max-width:650px){
  .disclaimer{font-size:11px;padding:9px 14px;line-height:1.45}
  .disclaimer a{display:block;margin:4px 0 0}
  .site-header{padding:12px 16px}
  .header-actions .text-link,.header-actions .btn{display:none}
  .brand>span{font-size:17px}
  .hero{min-height:auto;padding:56px 22px 70px;flex-direction:column;align-items:flex-start}
  .hero h1{font-size:clamp(40px,11vw,56px)}
  .hero-meta{gap:18px 26px;margin-top:40px}
  .coin-stage{position:relative;right:auto;top:auto;transform:none;width:100%;height:300px;opacity:.95;margin-top:36px;order:2}
  .coin-3d{position:relative;left:auto;top:auto;width:240px;margin-inline:auto}
  .orbital,.floating-tag{display:none}
  .section{padding:80px 22px}
  .feature-grid{grid-template-columns:1fr;margin-top:50px}
  .feature-card{min-height:auto;padding:26px}
  .feature-card .icon{margin-bottom:22px}
  .visual-panel{min-height:380px}
  .process-line{grid-template-columns:1fr;margin-top:50px}
  .process-line article{border-right:0;border-bottom:1px solid var(--line);min-height:auto}
  .process-line span{margin-bottom:28px}
  .dark-section{padding:80px 22px}
  .data-cards{grid-template-columns:1fr;margin-top:45px}
  .data-card{min-height:auto;padding:26px}
  .data-card strong{margin:20px 0 4px}
  .gold-card{height:380px}
  .gold-card-copy{left:24px;right:24px;bottom:24px}
  .news-grid{grid-template-columns:1fr;margin-top:45px}
  .banner{height:400px}
  .resource-grid{grid-template-columns:1fr;margin-top:45px}
  .resource-grid a{min-height:auto;padding:22px}
  .resource-grid span{margin-bottom:22px}
  .cta{grid-template-columns:1fr;padding:70px 24px;gap:24px}
  .cta-logo{width:70px}
  .cta .btn{grid-column:auto}
  .footer-links{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .ticker-pause{right:6px;width:30px;height:30px}
}

/* --- reduced motion (WCAG 2.3.3 / user 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;
  }
  .gold-orb{transform:translate(-50%,-50%)}
  .ticker-track{animation:none}
}

/* --- print --- */
@media print{
  .site-header,.mobile-nav,.ticker,.coin-stage,.cta-glow,.skip-link{display:none!important}
  body{background:#fff;color:#000}
  .hero,.dark-section,.cta,footer,.split-visual{background:#fff!important;color:#000!important}
}