:root{
  --bg:#0a0e12; --band:#0f151c; --card:#141c25; --card2:#1b2530;
  --ink:#eef3f7; --muted:#92a3b3; --line:#243140;
  --teal:#19c3a6; --teal2:#13a98f; --amber:#f4b740; --link:#46b7ff;
}
*{box-sizing:border-box}
html,body{width:100%;overflow-x:hidden;margin:0}
body{background:var(--bg);color:var(--ink);
  font:16px/1.66 "Inter","Segoe UI",Roboto,system-ui,Arial,sans-serif;
  -webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}

/* ---- header: logo left, pill nav right, single row ---- */
.site-header{background:#070a0d;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50}
.bar{max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:16px;
  padding:11px 18px;max-width:min(1120px,100%)}
.logo{font-weight:800;font-size:1.12rem;color:#fff;letter-spacing:.4px;
  white-space:nowrap;display:flex;align-items:center;gap:8px}
.logo b{color:var(--teal)}
.logo span{color:var(--amber)}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-main a{color:var(--ink);font-weight:600;font-size:.92rem;
  padding:8px 12px;border-radius:999px}
.nav-main a:hover{background:var(--card2);color:#fff;text-decoration:none}
.btn{display:inline-block;background:var(--teal);color:#04201b;font-weight:800;
  padding:11px 22px;border-radius:999px;border:0;cursor:pointer}
.btn:hover{background:var(--teal2);text-decoration:none;color:#04201b}
.btn-sm{padding:8px 16px;font-size:.9rem}
.burger{display:none;margin-left:auto;background:none;border:0;cursor:pointer;
  width:44px;height:40px;padding:9px}
.burger span{display:block;height:3px;background:#fff;border-radius:2px;
  margin:4px 0;transition:.25s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---- carousel ---- */
.carousel{position:relative;max-width:1120px;margin:16px auto 0;padding:0 18px;
  max-width:min(1120px,100%)}
.carousel .track{display:flex;overflow:hidden;border-radius:14px;
  background:var(--card)}
.carousel .slide{flex:0 0 100%;display:none;position:relative;text-decoration:none}
.carousel .slide.active{display:block}
.carousel .slide img{width:100%;height:auto;object-fit:contain;
  object-position:center;max-height:300px}
.slide-copy{position:absolute;inset:0;display:flex;flex-direction:column;
  justify-content:center;align-items:flex-start;gap:10px;padding:0 6%;
  background:linear-gradient(90deg,rgba(7,10,13,.82) 0%,rgba(7,10,13,.42) 48%,
    rgba(7,10,13,0) 78%)}
.slide-head{color:#fff;font-weight:800;font-size:1.65rem;line-height:1.15;
  max-width:62%;text-shadow:0 2px 8px rgba(0,0,0,.6)}
.slide-sub{color:#dfe7ee;font-size:1rem;max-width:54%;
  text-shadow:0 1px 6px rgba(0,0,0,.6)}
.slide-btn{display:inline-block;background:var(--amber);color:#231700;
  font-weight:800;padding:11px 24px;border-radius:999px;font-size:1rem;
  box-shadow:0 4px 14px rgba(0,0,0,.4)}
.car-nav{position:absolute;top:50%;transform:translateY(-50%);
  background:rgba(0,0,0,.5);color:#fff;border:0;font-size:1.6rem;width:42px;
  height:54px;border-radius:10px;cursor:pointer;z-index:2}
.car-nav.prev{left:26px}.car-nav.next{right:26px}
.car-nav:hover{background:var(--teal);color:#04201b}
.dots{display:flex;justify-content:center;gap:8px;margin-top:11px}
.dot{width:10px;height:10px;border-radius:50%;border:0;background:var(--line);
  cursor:pointer}
.dot.active{background:var(--teal)}

/* ---- main + content card ---- */
main{max-width:1000px;margin:0 auto;padding:26px 18px 60px;
  max-width:min(1000px,100%)}
h1{font-size:2.05rem;line-height:1.18;margin:.15em 0 .3em;color:#fff;
  letter-spacing:-.01em}
h2{font-size:1.4rem;margin:1.7em 0 .5em;color:#fff;position:relative;
  padding-left:.65em}
h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:3px;background:linear-gradient(var(--teal),var(--amber))}
h3{font-size:1.12rem;margin:1.3em 0 .4em;color:var(--amber)}
p{margin:.72em 0}

.crumbs{font-size:.84rem;color:var(--muted);margin:0 0 8px;display:flex;
  flex-wrap:wrap;gap:6px;align-items:center}
.crumbs .sep{color:var(--line)}
.crumbs a{color:var(--muted)}

.updated{font-size:.82rem;color:var(--muted);margin:.2em 0 1em}
.updated .conf{display:block;font-style:italic;opacity:.85}
.snippet{background:var(--card);border:1px solid var(--line);
  border-left:4px solid var(--teal);padding:15px 17px;border-radius:0 10px 10px 0;
  font-size:1.05rem}

.media{margin:1.3em 0}
.media img{width:100%;height:auto;border-radius:14px;border:1px solid var(--line)}

.table-scroll{overflow-x:auto;margin:1.3em 0;border:1px solid var(--line);
  border-radius:12px}
table{border-collapse:collapse;width:100%;min-width:440px;font-size:.95rem}
caption{text-align:left;color:var(--muted);font-size:.8rem;padding:9px 13px}
th,td{padding:11px 13px;border-bottom:1px solid var(--line);text-align:left}
thead th{background:var(--card2);color:#fff}
tbody tr:nth-child(even){background:rgba(255,255,255,.022)}

.cta{margin:1.7em 0;text-align:center}
.cta .btn{font-size:1.06rem;padding:14px 32px}

.authority{background:var(--card);border:1px solid var(--line);
  border-radius:14px;padding:17px 19px;margin:1.7em 0}
.authority h3{margin-top:0;color:var(--amber)}
.authority ul{margin:.5em 0 0;padding-left:1.2em}

/* fact chips (home) */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:1.2em 0}
.chip{background:var(--card2);border:1px solid var(--line);border-radius:999px;
  padding:8px 15px;font-size:.9rem;color:var(--ink)}
.chip b{color:var(--teal)}

/* tabbed panel (interactive) */
.tabs{margin:1.4em 0;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;background:var(--card)}
.tabs-bar{display:flex;flex-wrap:wrap;gap:0;background:var(--card2)}
.tab-btn{flex:1;min-width:120px;background:none;border:0;color:var(--muted);
  font-weight:700;padding:13px 14px;cursor:pointer;font-size:.92rem;
  border-bottom:3px solid transparent}
.tab-btn.active{color:#fff;border-bottom-color:var(--teal)}
.tab-panel{display:none;padding:16px 18px}
.tab-panel.active{display:block}

.faq{margin-top:2em}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;
  margin:.6em 0;padding:0 17px}
.faq-item summary{cursor:pointer;font-weight:700;padding:15px 0;color:#fff;
  list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";float:right;color:var(--teal);
  font-size:1.3rem;line-height:1}
.faq-item[open] summary::after{content:"\2013"}
.faq-a{padding:0 0 15px;color:var(--muted)}

.site-footer{background:#070a0d;border-top:1px solid var(--line);
  padding:34px 18px;margin-top:44px}
.cols{max-width:1000px;margin:0 auto;display:flex;flex-wrap:wrap;gap:30px;
  max-width:min(1000px,100%)}
.col{flex:1;min-width:150px}
.col-wide{flex:2;min-width:220px}
.col h4{color:#fff;margin:0 0 .6em;font-size:1rem}
.col ul{list-style:none;margin:0;padding:0}
.col li{margin:.35em 0}
.col a{color:var(--muted)}
.col p{color:var(--muted);font-size:.92rem;margin:0}
.disclaimer{max-width:1000px;margin:24px auto 0;color:var(--muted);
  font-size:.8rem;border-top:1px solid var(--line);padding-top:16px;
  max-width:min(1000px,100%)}
.copy{max-width:1000px;margin:10px auto 0;color:var(--muted);font-size:.8rem;
  max-width:min(1000px,100%)}

.to-top{position:fixed;right:18px;bottom:18px;width:46px;height:46px;
  border-radius:50%;background:var(--teal);color:#04201b;border:0;
  font-size:1.3rem;cursor:pointer;z-index:40;
  box-shadow:0 4px 14px rgba(0,0,0,.5)}
.to-top:hover{background:var(--teal2)}

@media(max-width:860px){
  .nav-main{display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;background:#070a0d;
    border-bottom:1px solid var(--line);padding:8px 0}
  .nav-main.open{display:flex}
  .nav-main a{padding:13px 18px;border-radius:0;border-top:1px solid var(--line)}
  .nav-main .btn{margin:10px 18px;text-align:center;border-radius:999px}
  .burger{display:block}
  .car-nav.prev{left:18px}.car-nav.next{right:18px}
  .slide-copy{padding:0 14px;
    background:linear-gradient(90deg,rgba(7,10,13,.85) 0%,rgba(7,10,13,.62) 60%,
      rgba(7,10,13,.38) 100%)}
  .carousel .slide img{min-height:118px}  /* contain -> letterbox (no crop), room for copy */
  .slide-head{font-size:1rem;max-width:66%}
  .slide-sub{display:none}
  .slide-btn{padding:7px 14px;font-size:.82rem;margin-top:4px}
  h1{font-size:1.62rem}
  main{padding:18px 14px 48px}
  .cols{gap:20px}
}