/* Chart paper: cool light page, navy ink, green and red only where they mean buy and sell. System fonts: no font host, fast load. */
:root{
  --paper:#F3F6FA; --card:#FFFFFF; --grid:#DCE4EE; --ink:#0B1220; --text:#2B3648; --muted:#566377; --line:#C9D3E0;
  --up:#138A4B; --down:#C8322B; --blue:#1F4FD6; --blue-d:#173DAA;
  --head:"Avenir Next","Segoe UI Variable Display","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --body:Charter,"Bitstream Charter","Sitka Text",Cambria,"Noto Serif",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--text);font:18px/1.65 var(--body);text-rendering:optimizeLegibility}
img,svg{max-width:100%;display:block}
a{color:var(--blue);text-underline-offset:.18em}
a:hover{color:var(--blue-d)}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:3px}
.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 24px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;background:var(--ink);color:#fff;padding:10px 14px;border-radius:6px;z-index:10}
.skip:focus{top:12px}

h1,h2,h3,summary,.btn,nav a,.brand span,dt,.ledger th,.foot .fine{font-family:var(--head)}
h1{font-size:clamp(2.25rem,5.4vw,3.7rem);line-height:1.04;letter-spacing:-.025em;font-weight:800;color:var(--ink);margin:0 0 20px;max-width:14ch}
h2{font-size:clamp(1.5rem,3vw,1.95rem);line-height:1.15;letter-spacing:-.018em;font-weight:780;color:var(--ink);margin:0}
h3{font-size:1.08rem;line-height:1.3;font-weight:720;color:var(--ink);margin:0 0 4px}
p{margin:0 0 1em}

/* header */
.top{border-bottom:1px solid var(--line);background:rgba(243,246,250,.92);position:sticky;top:0;z-index:5;backdrop-filter:saturate(1.4) blur(8px)}
.bar{display:flex;align-items:center;gap:20px;min-height:64px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);margin-right:auto}
.brand img{border-radius:50%}
.brand span{font-weight:780;letter-spacing:-.01em;font-size:1.02rem;white-space:nowrap}
nav{display:flex;gap:22px;font-size:.92rem;white-space:nowrap}
nav a{color:var(--text);text-decoration:none;font-weight:560}
nav a:hover{color:var(--blue);text-decoration:underline}

/* buttons */
.btn{display:inline-block;background:var(--ink);color:#fff;text-decoration:none;font-weight:700;font-size:1rem;padding:14px 22px;border-radius:7px;line-height:1.2;transition:background .15s}
.btn:hover{background:var(--blue);color:#fff}
.btn-sm{padding:10px 16px;font-size:.92rem;white-space:nowrap}
.textlink{font-family:var(--head);font-weight:640;margin-left:18px}

/* hero: graph paper only here */
.hero{padding:56px 0 64px;background-color:var(--paper);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:40px 40px;background-position:-1px -1px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.lead{font-size:1.2rem;line-height:1.6;color:var(--text);max-width:34em}
.cta{display:flex;align-items:center;flex-wrap:wrap;gap:14px 0;margin:26px 0 12px}
.hero .small,.sec .small{font-size:.92rem;color:var(--muted)}
.figure{margin:0;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:14px 14px 10px;box-shadow:0 1px 0 rgba(11,18,32,.04)}
figcaption{font-size:.84rem;color:var(--muted);padding:8px 4px 0;font-style:italic}

/* chart */
.chart .grid line{stroke:#E6ECF3;stroke-width:1}
.chart .k line{stroke-width:2}
.chart .up line{stroke:var(--up)} .chart .up rect{fill:var(--up)}
.chart .dn line{stroke:var(--down)} .chart .dn rect{fill:var(--down)}
.chart .ma{fill:none;stroke:var(--ink);stroke-width:2;stroke-linejoin:round;opacity:.75}
.chart .note line{stroke:var(--ink);stroke-width:1.5;stroke-dasharray:3 3}
.chart .note rect{fill:var(--ink)}
.chart .note text{fill:#fff;font:700 17px/1 var(--head)}
.chart .k{transform-box:fill-box;transform-origin:center;animation:draw .5s cubic-bezier(.2,.7,.2,1) both}
@keyframes draw{from{transform:scaleY(.05);opacity:0}to{transform:scaleY(1);opacity:1}}

/* risk strip */
.risk{background:var(--ink);color:#E8EDF5}
.risk p{margin:0;padding:16px 0;font-size:1rem;line-height:1.55}
.risk strong{color:#fff;font-family:var(--head)}
.risk a{color:#9DB8FF}

/* sections: heading hangs on the left, content on the right */
.sec{padding:64px 0;border-bottom:1px solid var(--line);scroll-margin-top:64px}
.sec.last{border-bottom:0}
.split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,8fr);gap:40px}
.split>h2{position:sticky;top:92px;align-self:start}

.list{margin:0}
.list>div{padding:16px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:8px 24px}
.list>div:first-child{border-top:0;padding-top:0}
dt{font-weight:720;color:var(--ink);font-size:1.02rem}
dd{margin:0}

.steps{list-style:none;margin:0;padding:0;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding:0 0 26px 64px}
.steps li::before{content:counter(s);position:absolute;left:0;top:-4px;width:42px;height:42px;border:2px solid var(--ink);border-radius:50%;
  display:grid;place-items:center;font:800 1.15rem/1 var(--head);color:var(--ink);background:var(--card)}
.steps li:not(:last-child)::after{content:"";position:absolute;left:20px;top:42px;bottom:4px;border-left:2px dashed var(--line)}
.steps p{margin:0}

.intro{margin-bottom:18px}
.ledger{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line)}
.ledger th,.ledger td{text-align:left;vertical-align:top;padding:16px 18px;border-top:1px solid var(--line)}
.ledger thead th{background:#EAF0F7;font-size:.9rem;color:var(--muted);font-weight:700;border-top:0}
.ledger tbody th{width:30%;color:var(--ink);font-weight:720}
.ledger td{font-size:1rem}

.plain{margin:0;padding:0 0 0 1.1em}
.plain li{margin:0 0 .85em}
.plain.contact{list-style:none;padding:0}
.more{margin-top:8px}
.more a{margin-right:20px;font-family:var(--head);font-weight:640}

.faq details{border-top:1px solid var(--line);padding:2px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
summary{cursor:pointer;list-style:none;padding:16px 36px 16px 0;font-weight:700;color:var(--ink);font-size:1.04rem;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:4px;top:12px;font:400 1.6rem/1.2 var(--head);color:var(--muted)}
details[open] summary::after{content:"\2212"}
.faq p{margin:0 0 18px;max-width:36em}

/* legal pages */
.narrow{max-width:760px}
.legal{padding:56px 0 72px}
.legal h1{max-width:none;font-size:clamp(1.9rem,4vw,2.6rem)}
.legal h2{font-size:1.2rem;margin:34px 0 6px}
.legal .n{font-size:.92rem;color:var(--muted)}

/* footer */
.foot{background:var(--ink);color:#C7D0DE;padding:44px 0;font-size:.95rem;line-height:1.6}
.foot .fine{color:#fff;font-weight:700;font-size:1.02rem}
.foot .marks{font-size:.82rem;color:#9AA7BA;max-width:70em}
.foot a{color:#9DB8FF;margin-right:20px}

@media (max-width:1100px){
  nav{gap:14px;font-size:.85rem}
  .bar{gap:14px}
}
@media (max-width:980px){
  nav{display:none}
}
@media (max-width:900px){
  .hero{padding:36px 0 44px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  h1{max-width:none}
  .split{grid-template-columns:1fr;gap:20px}
  .split>h2{position:static}
  .sec{padding:44px 0}
}
@media (max-width:560px){
  body{font-size:17px}
  .wrap{padding:0 18px}
  .bar{gap:12px}
  .brand{min-width:0;gap:10px}
  .brand img{width:36px;height:36px}
  .brand span{font-size:.88rem;line-height:1.2;white-space:normal}
  .btn-sm{padding:9px 12px;font-size:.86rem}
  .list>div{grid-template-columns:1fr;gap:2px}
  .ledger,.ledger tbody,.ledger tr,.ledger th,.ledger td{display:block;width:100%}
  .ledger thead{display:none}
  .ledger tbody th{width:100%;padding-bottom:2px;border-top:1px solid var(--line)}
  .ledger td{padding-top:0;border-top:0}
  .ledger tbody tr:first-child th{border-top:0}
  .textlink{margin-left:0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .chart .k{animation:none}
}

/* chart draw-in: runs once on load */
.chart .k:nth-of-type(2){animation-delay:0ms}
.chart .k:nth-of-type(3){animation-delay:55ms}
.chart .k:nth-of-type(4){animation-delay:110ms}
.chart .k:nth-of-type(5){animation-delay:165ms}
.chart .k:nth-of-type(6){animation-delay:220ms}
.chart .k:nth-of-type(7){animation-delay:275ms}
.chart .k:nth-of-type(8){animation-delay:330ms}
.chart .k:nth-of-type(9){animation-delay:385ms}
.chart .k:nth-of-type(10){animation-delay:440ms}
.chart .k:nth-of-type(11){animation-delay:495ms}
.chart .k:nth-of-type(12){animation-delay:550ms}
.chart .k:nth-of-type(13){animation-delay:605ms}
.chart .k:nth-of-type(14){animation-delay:660ms}
.chart .k:nth-of-type(15){animation-delay:715ms}
.chart .k:nth-of-type(16){animation-delay:770ms}
.chart .k:nth-of-type(17){animation-delay:825ms}
.chart .k:nth-of-type(18){animation-delay:880ms}
.chart .k:nth-of-type(19){animation-delay:935ms}
.chart .k:nth-of-type(20){animation-delay:990ms}
.chart .k:nth-of-type(21){animation-delay:1045ms}
.chart .k:nth-of-type(22){animation-delay:1100ms}
.chart .k:nth-of-type(23){animation-delay:1155ms}

/* ---- tour: one card per app tab, with a real screenshot ---- */
.tour-head{max-width:46em;margin:0 0 36px}
.tour-head h2{margin-bottom:10px}
.tour-head p{color:var(--muted);margin:0}
.tour{display:grid;gap:28px}
.tab-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:28px;align-items:start;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:22px;scroll-margin-top:84px}
.tab-card:nth-child(even) .tab-shot-wrap{order:-1}
.tab-no{font:700 .78rem/1 var(--head);letter-spacing:.08em;text-transform:uppercase;color:var(--blue);margin:0 0 8px}
.tab-card h3{font-size:1.35rem;margin:0 0 8px}
.tab-card p{margin:0 0 .8em;font-size:1rem}
.tab-card ul{margin:0 0 14px;padding-left:1.1em;font-size:.98rem}
.tab-card li{margin:0 0 .35em}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none}
.chips li{margin:0;font:600 .76rem/1 var(--head);padding:6px 9px;border:1px solid var(--line);border-radius:99px;background:var(--paper);color:var(--text)}
.tab-shot-wrap figure{margin:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--paper)}.tab-shot-wrap a{display:block;background:#0b1220}.tab-shot-wrap img{width:100%;height:auto;display:block}.tab-shot-wrap figcaption{font-style:normal;font-size:.86rem;padding:10px 12px;color:var(--text)}.tab-shot-wrap figcaption b{display:block;font-family:var(--head);color:var(--ink);margin-bottom:2px}

/* platforms */
.plat{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:8px}
.plat>div{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:18px}
.plat h3{font-size:1.05rem}
.plat p{font-size:.95rem;margin:0}
.callout{background:var(--ink);color:#E8EDF5;border-radius:10px;padding:26px 28px;display:flex;flex-wrap:wrap;gap:18px 28px;align-items:center;justify-content:space-between}
.callout h2{color:#fff;font-size:1.4rem;margin:0 0 6px}
.callout p{margin:0;color:#C9D3E0;max-width:38em}
.callout .btn{background:#fff;color:var(--ink)}
.callout .btn:hover{background:var(--blue);color:#fff}
@media (max-width:860px){
  .tab-card{grid-template-columns:1fr}
  .tab-card:nth-child(even) .tab-shot-wrap{order:0}
  .plat{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){.plat{grid-template-columns:1fr}}

/* gallery under each tab card */
.tab-card{grid-template-columns:minmax(0,1fr) minmax(0,1.15fr)}
.gallery{grid-column:1/-1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:6px;padding-top:20px;border-top:1px solid var(--line)}
.gallery.one{grid-template-columns:1fr}
.gallery figure{margin:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--paper)}
.gallery a{display:block;background:#0b1220}
.gallery img{width:100%;height:auto;display:block}
.gallery figcaption{font-style:normal;font-size:.86rem;line-height:1.45;color:var(--text);padding:10px 12px}
.gallery figcaption b{font-family:var(--head);color:var(--ink);display:block;margin-bottom:2px}
.gal-title{grid-column:1/-1;font:700 .78rem/1 var(--head);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0}
@media (max-width:860px){.gallery{grid-template-columns:1fr}}
.gallery{align-items:start}