:root{
  --ink-void:#0e1116;
  --ink-slab:#161b22;
  --ink-rise:#1d2531;
  --ink-line:#2b3545;
  --glow-main:#36e0c8;
  --glow-warm:#f2b544;
  --text-prime:#f5f7fa;
  --text-soft:#cdd6e2;
  --surface-pad:30px;
  --rail-w:272px;
  --radius-soft:16px;
  --radius-tight:10px;
  --flow-serif:Georgia,'Times New Roman',serif;
  --flow-sans:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--ink-void);
  color:var(--text-prime);
  font-family:var(--flow-sans);
  font-size:19px;
  line-height:1.68;
  min-height:100vh;
  overflow-x:hidden;
}
body::before,body::after{
  content:"";position:fixed;border-radius:50%;pointer-events:none;z-index:0;filter:blur(72px);
}
body::before{
  width:460px;height:460px;top:-160px;right:-120px;
  background:rgba(54,224,200,.28);
  animation:sb-drift 26s ease-in-out infinite alternate;
}
body::after{
  width:340px;height:340px;bottom:-140px;left:22%;
  background:rgba(242,181,68,.16);
  animation:sb-drift 32s ease-in-out infinite alternate-reverse;
}
@keyframes sb-drift{from{transform:translate3d(0,0,0)}to{transform:translate3d(-36px,28px,0)}}
img,svg{max-width:100%;display:block}
a{color:var(--glow-main);text-decoration:none}
a:hover{text-decoration:underline}
::selection{background:var(--glow-main);color:var(--ink-void)}

/* ====== SHELL / ASYMMETRIC LAYOUT ====== */
.sb-shell{display:flex;min-height:100vh;align-items:stretch;position:relative;z-index:1}
.sb-aside{
  width:var(--rail-w);flex:0 0 var(--rail-w);
  background:linear-gradient(180deg,rgba(18,23,34,.92) 0%,rgba(12,16,23,.94) 100%);
  border-right:1px solid var(--ink-line);
  position:sticky;top:0;align-self:flex-start;height:100vh;
  display:flex;flex-direction:column;padding:26px 22px;
  backdrop-filter:blur(16px);
  box-shadow:inset -28px 0 48px -36px rgba(54,224,200,.45);
}
.sb-stage{flex:1 1 auto;min-width:0;padding:0 clamp(18px,4vw,64px) 80px}

/* ====== SIDE RAIL NAV ====== */
.sb-brand{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.sb-brand img{width:100%;height:auto}
.sb-rail-tag{
  font-size:12.5px;letter-spacing:2px;text-transform:uppercase;
  color:var(--text-soft);margin:14px 4px 18px;
}
.sb-nav{list-style:none;display:flex;flex-direction:column;gap:4px;overflow-y:auto}
.sb-nav a{
  display:flex;align-items:center;gap:11px;
  color:var(--text-soft);font-size:16.5px;font-weight:600;
  padding:11px 13px;border-radius:var(--radius-tight);
  border-left:3px solid transparent;transition:.18s;
}
.sb-nav a:hover{background:var(--ink-rise);color:var(--text-prime);text-decoration:none;box-shadow:inset 0 0 22px rgba(54,224,200,.08)}
.sb-nav a[aria-current="page"]{
  background:var(--ink-rise);color:var(--text-prime);
  border-left-color:var(--glow-main);
  box-shadow:inset 0 0 24px rgba(54,224,200,.12),0 0 16px -6px rgba(54,224,200,.55);
}
.sb-nav .sb-nav-mark{color:var(--glow-main);font-size:13px}
.sb-nav-sep{margin:14px 10px 6px;font-size:11px;letter-spacing:2px;
  text-transform:uppercase;color:#6b7790}
.sb-rail-foot{margin-top:auto;padding-top:18px;font-size:13.5px;
  color:#8794a8;line-height:1.5}
.sb-rail-foot strong{color:var(--text-soft)}

/* mobile top bar */
.sb-topbar{display:none}
/* ====== TYPOGRAPHY ====== */
h1,h2,h3,h4{font-family:var(--flow-serif);line-height:1.14;font-weight:700;color:var(--text-prime)}
h1{font-size:clamp(34px,5.4vw,58px);margin:0 0 .35em;letter-spacing:-.5px}
h2{font-size:clamp(28px,3.6vw,40px);margin:1.5em 0 .5em}
h3{font-size:clamp(22px,2.4vw,27px);margin:1.3em 0 .45em}
h4{font-size:20px;margin:1.1em 0 .4em;font-family:var(--flow-sans)}
p{margin:0 0 1.1em;color:var(--text-soft);max-width:74ch}
p.sb-lede{font-size:22px;color:var(--text-prime);line-height:1.56}
.sb-eyebrow{display:inline-block;font-family:var(--flow-sans);font-size:13px;
  letter-spacing:3px;text-transform:uppercase;color:var(--glow-main);
  font-weight:700;margin-bottom:14px;text-shadow:0 0 14px rgba(54,224,200,.4)}

/* ====== HERO (diagonal) ====== */
.sb-hero{
  position:relative;padding:72px clamp(24px,4vw,56px);margin:0 0 20px;overflow:hidden;
  background:
    radial-gradient(900px 400px at 85% -10%,rgba(54,224,200,.14),transparent 60%),
    radial-gradient(700px 360px at 0% 120%,rgba(242,181,68,.10),transparent 60%),
    #10151d;
  border-bottom:1px solid var(--ink-line);
  clip-path:polygon(0 0,100% 0,100% 92%,0 100%);
}
.sb-hero::before,.sb-hero::after{
  content:"";position:absolute;border-radius:50%;pointer-events:none;filter:blur(18px);
}
.sb-hero::before{
  width:300px;height:300px;right:-30px;top:-90px;
  background:radial-gradient(circle,rgba(54,224,200,.5),transparent 68%);
  animation:sb-glow 18s ease-in-out infinite alternate;
}
.sb-hero::after{
  width:240px;height:240px;left:6%;bottom:-110px;
  background:radial-gradient(circle,rgba(242,181,68,.32),transparent 70%);
  animation:sb-glow 22s ease-in-out infinite alternate-reverse;
}
.sb-hero > *{position:relative;z-index:1}
@keyframes sb-glow{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(-22px,14px,0) scale(1.06)}}
.sb-hero h1{max-width:18ch}
.sb-hero p{max-width:60ch}
.sb-figure{margin:26px 0 8px;border-radius:var(--radius-soft);overflow:hidden;border:1px solid var(--ink-line);
  box-shadow:0 0 0 1px rgba(54,224,200,.06);transition:box-shadow .35s,transform .35s}
.sb-figure:hover{box-shadow:0 16px 40px -24px rgba(54,224,200,.65),0 0 24px -8px rgba(54,224,200,.35)}
.sb-figure img{width:100%;height:auto}
.sb-figure figcaption{padding:10px 16px 12px;font-size:14px;color:#8794a8;background:var(--ink-slab)}
[id]{scroll-margin-top:88px}

/* ====== SECTIONS / ASYMMETRIC GRID ====== */
.sb-band{padding:48px 0;border-bottom:1px solid var(--ink-line)}
.sb-split{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:start}
.sb-split.sb-flip{grid-template-columns:1fr 1.6fr}
.sb-trio{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}
/* ====== PLATES (non-card naming) ====== */
.sb-plate{
  position:relative;background:rgba(22,27,34,.78);border:1px solid var(--ink-line);
  border-radius:var(--radius-soft);padding:var(--surface-pad);
  backdrop-filter:blur(12px);
}
.sb-plate--glow{border-color:rgba(54,224,200,.4);
  box-shadow:0 0 0 1px rgba(54,224,200,.12),0 18px 50px -28px rgba(54,224,200,.55),inset 0 0 32px rgba(54,224,200,.05)}
.sb-plate h3{margin-top:0}
.sb-plate .sb-plate-num{font-family:var(--flow-serif);font-size:42px;
  color:var(--glow-warm);line-height:1;display:block;margin-bottom:8px}
.sb-stack{display:flex;flex-direction:column;gap:22px}

/* ====== BUTTONS (action) ====== */
.sb-action{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--flow-sans);font-size:17px;font-weight:700;
  padding:15px 28px;border-radius:var(--radius-tight);cursor:pointer;
  border:2px solid transparent;transition:transform .12s,box-shadow .18s,background .18s;
}
.sb-action--lead{background:var(--glow-main);color:#07231f;box-shadow:0 0 18px -6px rgba(54,224,200,.45)}
.sb-action--lead:hover{box-shadow:0 10px 28px -8px rgba(54,224,200,.8),0 0 22px rgba(54,224,200,.28);text-decoration:none;transform:translateY(-2px)}
.sb-action--lead:active{transform:translateY(1px) scale(.98)}
.sb-action--ghost{background:transparent;color:var(--text-prime);border-color:var(--ink-line)}
.sb-action--ghost:hover{border-color:var(--glow-main);color:var(--glow-main);text-decoration:none;transform:translateY(-2px);box-shadow:0 0 20px -6px rgba(54,224,200,.55)}
.sb-action--ghost:active{transform:translateY(1px) scale(.98)}
.sb-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:26px}

/* ====== TABLES ====== */
.sb-tablewrap{overflow-x:auto;border:1px solid var(--ink-line);border-radius:var(--radius-soft);margin:22px 0}
table.sb-grid{width:100%;border-collapse:collapse;min-width:560px;font-size:17px}
.sb-grid caption{text-align:left;padding:16px 18px;font-weight:700;
  font-family:var(--flow-serif);font-size:19px;background:var(--ink-rise);color:var(--text-prime)}
.sb-grid th,.sb-grid td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--ink-line)}
.sb-grid thead th{background:#111826;color:var(--glow-main);
  text-transform:uppercase;letter-spacing:1px;font-size:14px;cursor:pointer;user-select:none}
.sb-grid thead th[data-sort]:after{content:"\2195";opacity:.4;margin-left:7px;font-size:12px}
.sb-grid thead th[data-sort].is-asc:after{content:"\2191";opacity:1}
.sb-grid thead th[data-sort].is-desc:after{content:"\2193";opacity:1}
.sb-grid tbody tr:nth-child(odd){background:rgba(255,255,255,.02)}
.sb-grid tbody tr:hover{background:rgba(54,224,200,.07)}
.sb-grid td strong{color:var(--text-prime)}
/* ====== LISTS ====== */
ul.sb-flow,ol.sb-flow{margin:0 0 1.2em 1.1em;color:var(--text-soft)}
ul.sb-flow li,ol.sb-flow li{margin:0 0 .6em;padding-left:6px}
ul.sb-ticks{list-style:none;margin:0 0 1.2em}
ul.sb-ticks li{position:relative;padding:0 0 .7em 34px;color:var(--text-soft)}
ul.sb-ticks li:before{content:"";position:absolute;left:0;top:4px;width:18px;height:18px;
  border-radius:5px;background:linear-gradient(135deg,var(--glow-main),var(--glow-warm))}
ul.sb-ticks li:after{content:"\2713";position:absolute;left:4px;top:2px;color:#07231f;font-size:13px;font-weight:900}
ol.sb-steps{list-style:none;counter-reset:st;margin:0 0 1.2em}
ol.sb-steps li{position:relative;padding:0 0 1.1em 56px;color:var(--text-soft)}
ol.sb-steps li:before{counter-increment:st;content:counter(st);position:absolute;left:0;top:-2px;
  width:38px;height:38px;border-radius:50%;background:var(--ink-rise);border:1px solid var(--glow-main);
  color:var(--glow-main);font-weight:800;display:flex;align-items:center;justify-content:center}
ol.sb-steps li strong{color:var(--text-prime);display:block;margin-bottom:2px}
dl.sb-def{margin:0 0 1.2em;border-left:2px solid var(--ink-line);padding-left:22px}
dl.sb-def dt{font-weight:800;color:var(--text-prime);font-size:19px;margin-top:16px}
dl.sb-def dd{margin:4px 0 0;color:var(--text-soft)}

/* glossary inline trigger */
.sb-term{border-bottom:2px dotted var(--glow-warm);color:var(--glow-warm);
  cursor:help;font-weight:600;background:none}
.sb-term:hover{background:rgba(242,181,68,.12)}

/* ====== ACCORDION ====== */
.sb-fold{border:1px solid var(--ink-line);border-radius:var(--radius-tight);margin:0 0 12px;overflow:hidden;background:var(--ink-slab)}
.sb-fold-head{width:100%;text-align:left;background:none;border:0;color:var(--text-prime);
  font-family:var(--flow-sans);font-size:19px;font-weight:700;padding:18px 22px;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px}
.sb-fold-head:hover{color:var(--glow-main)}
.sb-fold-head .sb-fold-ico{flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--glow-main);color:var(--glow-main);display:flex;align-items:center;
  justify-content:center;font-size:18px;transition:transform .2s}
.sb-fold[aria-expanded="true"] .sb-fold-ico{transform:rotate(45deg)}
.sb-fold-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
.sb-fold-body-inner{padding:0 22px 20px}
.sb-fold-body-inner p{margin-bottom:.6em}
/* ====== CALCULATOR ====== */
.sb-calc{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.sb-field{display:flex;flex-direction:column;gap:7px;margin-bottom:6px}
.sb-field label{font-weight:700;font-size:16px;color:var(--text-prime)}
.sb-field input,.sb-field select{
  background:var(--ink-void);border:1px solid var(--ink-line);color:var(--text-prime);
  font-size:18px;padding:13px 15px;border-radius:var(--radius-tight);font-family:var(--flow-sans)}
.sb-field input:focus,.sb-field select:focus{outline:none;border-color:var(--glow-main)}
.sb-calc-out{background:var(--ink-void);border:1px dashed var(--glow-main);border-radius:var(--radius-tight);
  padding:20px;display:flex;flex-direction:column;justify-content:center;gap:8px}
.sb-calc-out .sb-big{font-family:var(--flow-serif);font-size:44px;color:var(--glow-main);line-height:1}
.sb-calc-out .sb-sub{font-size:15px;color:var(--text-soft)}

/* ====== FILTER TAGS ====== */
.sb-tags{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0}
.sb-tag{background:var(--ink-rise);border:1px solid var(--ink-line);color:var(--text-soft);
  font-size:15px;font-weight:600;padding:9px 18px;border-radius:999px;cursor:pointer;transition:.15s}
.sb-tag:hover{border-color:var(--glow-main);color:var(--text-prime)}
.sb-tag.is-on{background:var(--glow-main);color:#07231f;border-color:var(--glow-main)}

/* ====== REVIEW ITEMS ====== */
.sb-reviews{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;margin-top:24px}
.sb-review{background:var(--ink-slab);border:1px solid var(--ink-line);border-radius:var(--radius-soft);
  padding:26px;display:flex;flex-direction:column;transition:.18s;color:inherit;text-decoration:none}
a.sb-review:hover{border-color:var(--glow-main);transform:translateY(-4px);text-decoration:none;color:inherit;
  box-shadow:0 16px 36px -22px rgba(54,224,200,.7),0 0 22px -10px rgba(54,224,200,.4)}
.sb-review-pic{width:100%;height:168px;object-fit:cover;border-radius:10px;margin:0 0 16px}
.sb-go{margin-top:16px;font-size:15px;font-weight:800;color:var(--glow-main)}
.sb-review .sb-chip{align-self:flex-start;font-size:12.5px;letter-spacing:1px;text-transform:uppercase;
  font-weight:700;color:var(--glow-warm);border:1px solid rgba(242,181,68,.4);padding:4px 11px;border-radius:999px;margin-bottom:14px}
.sb-review h3{font-size:22px;margin:0 0 8px}
.sb-review p{font-size:16.5px;margin-bottom:14px}
.sb-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:auto;font-size:14px;color:#8794a8}
.sb-meta b{color:var(--glow-main);font-weight:700}

/* ====== MODAL ====== */
.sb-modal{position:fixed;inset:0;background:rgba(6,9,13,.78);display:none;align-items:center;
  justify-content:center;padding:24px;z-index:80}
.sb-modal.is-open{display:flex}
.sb-modal-box{background:var(--ink-slab);border:1px solid var(--glow-main);border-radius:var(--radius-soft);
  max-width:520px;width:100%;padding:34px;position:relative}
.sb-modal-box h4{margin-top:0;font-size:26px;font-family:var(--flow-serif);color:var(--glow-main)}
.sb-modal-close{position:absolute;top:14px;right:16px;background:none;border:0;color:var(--text-soft);
  font-size:30px;cursor:pointer;line-height:1}
.sb-modal-close:hover{color:var(--glow-warm)}
/* ====== CALLOUT / NOTE ====== */
.sb-note{border-left:4px solid var(--glow-warm);background:rgba(242,181,68,.07);
  padding:18px 22px;border-radius:0 var(--radius-tight) var(--radius-tight) 0;margin:22px 0}
.sb-note p{margin:0;color:var(--text-prime)}
.sb-note strong{color:var(--glow-warm)}

/* ====== STAT STRIP ====== */
.sb-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1px;
  background:var(--ink-line);border:1px solid var(--ink-line);border-radius:var(--radius-soft);overflow:hidden;margin:26px 0}
.sb-stat{background:var(--ink-slab);padding:24px 20px}
.sb-stat b{display:block;font-family:var(--flow-serif);font-size:40px;color:var(--glow-main);line-height:1.1;text-shadow:0 0 18px rgba(54,224,200,.38)}
.sb-stat span{font-size:15px;color:var(--text-soft)}

/* ====== FOOTER ====== */
.sb-foot{background:#0b0e13;border-top:1px solid var(--ink-line);margin:0 calc(-1*clamp(18px,4vw,64px)) -80px;
  padding:54px clamp(18px,4vw,64px) 40px}
.sb-foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;max-width:1100px}
.sb-foot h4{font-size:16px;letter-spacing:1px;text-transform:uppercase;color:var(--glow-main);margin:0 0 16px;font-family:var(--flow-sans)}
.sb-foot ul{list-style:none}
.sb-foot ul li{margin-bottom:9px}
.sb-foot a{color:var(--text-soft);font-size:16px}
.sb-foot a:hover{color:var(--glow-main)}
.sb-foot address{font-style:normal;color:var(--text-soft);font-size:16px;line-height:1.7}
.sb-foot address b{color:var(--text-prime)}
.sb-disclaimer{max-width:1100px;margin:34px 0 0;padding-top:24px;border-top:1px solid var(--ink-line);
  font-size:14.5px;color:#8794a8;line-height:1.6}
.sb-age{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;
  border:2px solid var(--glow-warm);color:var(--glow-warm);font-weight:900;font-size:16px;margin-bottom:14px}
.sb-foot-base{max-width:1100px;margin-top:20px;font-size:14px;color:#6b7790;display:flex;
  justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ====== COOKIE BAR ====== */
.sb-cookie{position:fixed;left:16px;right:16px;bottom:16px;max-width:760px;margin:0 auto;
  background:rgba(29,37,49,.82);border:1px solid var(--glow-main);border-radius:var(--radius-soft);
  padding:20px 24px;display:none;gap:18px;align-items:center;flex-wrap:wrap;z-index:70;
  backdrop-filter:blur(16px);
  box-shadow:0 20px 60px -20px rgba(0,0,0,.8),0 0 28px -10px rgba(54,224,200,.45)}
.sb-cookie.is-show{display:flex}
.sb-cookie p{margin:0;flex:1 1 300px;font-size:15.5px;color:var(--text-soft)}
.sb-cookie .sb-action{padding:11px 22px;font-size:15px}

/* reveal */
.sb-reveal{opacity:0;transform:translateY(24px);transition:opacity .6s,transform .6s}
.sb-reveal.is-in{opacity:1;transform:none}
.sb-wrap{max-width:1160px}
/* ====== RESPONSIVE ====== */
@media(max-width:1020px){
  .sb-split,.sb-split.sb-flip{grid-template-columns:1fr}
  .sb-calc{grid-template-columns:1fr}
  .sb-foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:860px){
  .sb-shell{flex-direction:column}
  .sb-aside{
    position:fixed;top:0;left:0;right:0;width:100%;height:auto;max-height:100vh;
    z-index:90;transform:translateY(-100%);transition:transform .28s;padding:84px 22px 26px;
    overflow-y:auto;border-right:0;border-bottom:1px solid var(--ink-line);
  }
  .sb-aside.is-open{transform:translateY(0)}
  .sb-stage{padding-top:70px}
  .sb-topbar{
    display:flex;position:fixed;top:0;left:0;right:0;height:62px;z-index:95;
    background:rgba(12,16,23,.86);border-bottom:1px solid var(--ink-line);align-items:center;
    backdrop-filter:blur(14px);box-shadow:0 8px 28px -18px rgba(54,224,200,.5);
    justify-content:space-between;padding:0 18px;
  }
  .sb-topbar img{height:34px;width:auto}
  .sb-burger{background:none;border:1px solid var(--ink-line);border-radius:9px;width:46px;height:40px;
    display:flex;flex-direction:column;gap:5px;align-items:center;justify-content:center;cursor:pointer}
  .sb-burger span{width:22px;height:2px;background:var(--text-prime);transition:.2s}
  .sb-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .sb-burger.is-open span:nth-child(2){opacity:0}
  .sb-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .sb-hero{clip-path:none}
  .sb-foot{margin-bottom:0}
}
@media(max-width:560px){
  body{font-size:18px}
  .sb-foot-grid{grid-template-columns:1fr}
  .sb-actions{flex-direction:column;align-items:stretch}
  .sb-action{justify-content:center}
  .sb-stats{grid-template-columns:1fr 1fr}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.sb-reveal{opacity:1;transform:none}}