/* Nexus site. One small stylesheet, no web fonts, no external requests. */
:root{
  --bg:#0a0810;--surface:#0f0c1b;--raised:#15112a;--line:#251a40;--line-strong:#3a2b60;
  --text:#e0d8f8;--muted:#9a8abe;--accent:#b43cff;--accent-deep:#6a0ecc;--accent-soft:#d090ff;
  --on-accent:#fff;--ok:#86efac;
  --font:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono:Consolas,"SF Mono",ui-monospace,Menlo,monospace;
  --maxw:1040px;--r:10px;
}
@media (prefers-color-scheme:light){
  :root{--bg:#faf8ff;--surface:#fff;--raised:#f3effc;--line:#e4dcf5;--line-strong:#cdbfe8;
    --text:#1a0d2e;--muted:#5b4d7c;--accent:#8a1fe0;--accent-deep:#6a0ecc;--accent-soft:#6a0ecc;--ok:#15803d}
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-soft);text-underline-offset:3px}
a:hover{color:var(--text)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--on-accent);padding:8px 14px;border-radius:6px;z-index:50}
.skip:focus{left:8px}
.wrap{width:min(var(--maxw),100% - 40px);margin-inline:auto}

/* header */
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:8px 28px;min-height:62px;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:18px;color:var(--text);text-decoration:none}
.brand img{width:28px;height:28px}
.nav{display:flex;gap:2px;flex:1;flex-wrap:wrap}
.nav a{padding:8px 12px;border-radius:6px;color:var(--muted);text-decoration:none;font-size:15px}
.nav a:hover{color:var(--text);background:var(--raised)}
.nav a[aria-current="page"]{color:var(--text);box-shadow:inset 0 -2px 0 var(--accent);border-radius:0}
@media (max-width:720px){.nav{order:3;width:100%;border-top:1px solid var(--line);padding-top:4px}.bar{padding-block:8px}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border-radius:8px;border:0;font:600 15px/1 var(--font);text-decoration:none;cursor:pointer;background:linear-gradient(135deg,var(--accent),var(--accent-deep));color:var(--on-accent);transition:filter .15s,transform .15s}
.btn:hover{color:var(--on-accent);filter:brightness(1.1);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--text);box-shadow:inset 0 0 0 1px var(--line-strong)}
.btn.ghost:hover{background:var(--raised);filter:none}
.btn.small{min-height:34px;padding:0 14px;font-size:14px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}

/* type */
.eyebrow{font:600 13px/1 var(--font);letter-spacing:.08em;text-transform:uppercase;color:var(--accent-soft);margin:0 0 14px}
h1{font-size:clamp(32px,5.2vw,52px);line-height:1.1;margin:0 0 18px;letter-spacing:-.02em;font-weight:650}
h2{font-size:clamp(24px,3.2vw,32px);line-height:1.2;margin:0 0 12px;letter-spacing:-.01em;font-weight:620}
h3{font-size:18px;margin:0 0 6px;font-weight:600}
p{margin:0 0 14px}
.lead{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:640px}
.note{color:var(--muted);font-size:14px;margin-top:14px}
.muted{color:var(--muted)}
section{padding-block:56px}
.tight{padding-block:28px}

/* hero */
.hero{padding-top:72px;padding-bottom:24px;position:relative;text-align:center}
.hero::before{content:"";position:absolute;inset:-40px 0 auto;height:520px;background:radial-gradient(60% 60% at 50% 0%,color-mix(in srgb,var(--accent) 22%,transparent),transparent 70%);pointer-events:none;z-index:-1}
.hero .lead{margin-inline:auto}
.hero .actions{justify-content:center}

/* window frame for app images */
.win{background:var(--surface);border:1px solid var(--line-strong);border-radius:12px;overflow:hidden;box-shadow:0 24px 60px -24px rgb(0 0 0 / .6)}
.win .tb{display:flex;align-items:center;gap:6px;padding:9px 12px;border-bottom:1px solid var(--line);background:var(--raised);font-size:12px;color:var(--muted)}
.win .tb i{width:9px;height:9px;border-radius:50%;background:var(--line-strong);display:inline-block}
.win .tb span{margin-left:8px}
.win img{width:100%}
.fade{position:relative}
.fade::after{content:"";position:absolute;inset:auto 0 0;height:90px;background:linear-gradient(to bottom,transparent,var(--bg));pointer-events:none}
figure{margin:0}
figcaption{color:var(--muted);font-size:13px;margin-top:10px;text-align:center}
.stage{padding-top:8px;padding-bottom:0}

/* grids */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.card p{margin:0;color:var(--muted);font-size:15px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.cards .card img{border-radius:8px;border:1px solid var(--line);margin-bottom:14px}
@media (max-width:760px){.trio{grid-template-columns:1fr}}

.row{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center;padding-block:36px}
.row.flip{grid-template-columns:1.15fr 1fr}
.row.flip .text{order:2}
.row .text p{color:var(--muted)}
.row ul{margin:0;padding-left:18px;color:var(--muted)}
.row li{margin-bottom:4px}
@media (max-width:820px){.row,.row.flip{grid-template-columns:1fr;gap:20px}.row.flip .text{order:0}}

.band{background:var(--surface);border-block:1px solid var(--line)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media (max-width:760px){.two{grid-template-columns:1fr}}
.list{list-style:none;margin:0;padding:0}
.list li{padding:10px 0 10px 28px;border-bottom:1px solid var(--line);position:relative;color:var(--muted)}
.list li:last-child{border-bottom:0}
.list li::before{content:"";position:absolute;left:4px;top:19px;width:10px;height:10px;border-radius:50%;background:var(--accent)}
.list.no li::before{background:transparent;box-shadow:inset 0 0 0 2px var(--line-strong)}
.steps{counter-reset:s;list-style:none;margin:0;padding:0;display:grid;gap:16px}
.steps li{counter-increment:s;position:relative;padding-left:48px;color:var(--muted)}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;background:var(--raised);box-shadow:inset 0 0 0 1px var(--line-strong);display:grid;place-items:center;font-weight:600;color:var(--text)}
.steps strong{color:var(--text)}

/* tables, faq, code */
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--text);font-weight:600;width:30%}
td{color:var(--muted)}
.scroll{overflow-x:auto}
details{border-bottom:1px solid var(--line);padding:14px 0}
summary{cursor:pointer;font-weight:600;list-style-position:outside}
details p{color:var(--muted);margin:10px 0 0}
.code{display:flex;gap:10px;align-items:center;background:var(--raised);border:1px solid var(--line);border-radius:8px;padding:8px 8px 8px 14px;font:14px/1.4 var(--mono);word-break:break-all}
.code code{flex:1}
.callout{border:1px solid var(--line-strong);background:var(--raised);border-radius:var(--r);padding:16px 18px;margin:18px 0}
.callout p:last-child{margin:0}
.badge{display:inline-block;font:600 12px/1 var(--font);padding:5px 9px;border-radius:99px;background:var(--raised);box-shadow:inset 0 0 0 1px var(--line-strong);color:var(--accent-soft);margin-bottom:12px}
.price{font-size:40px;font-weight:650;letter-spacing:-.02em;line-height:1.1;margin:6px 0}
.price small{font-size:15px;font-weight:400;color:var(--muted)}
.hash-ok{color:var(--ok)}
.hash-bad{color:#f43f5e}
input[type=text],input[type=file]{width:100%;background:var(--raised);color:var(--text);border:1px solid var(--line-strong);border-radius:8px;padding:11px 12px;font:14px var(--mono)}
label{display:block;font-weight:600;margin:14px 0 6px;font-size:14px}

/* footer */
.foot{border-top:1px solid var(--line);margin-top:40px;padding-block:40px;background:var(--surface);font-size:14px;color:var(--muted)}
.cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}
.foot h2{font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--text);margin-bottom:10px}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin-bottom:6px}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--text);text-decoration:underline}
.legal{border-top:1px solid var(--line);margin-top:28px;padding-top:18px}
@media (max-width:760px){.cols{grid-template-columns:1fr 1fr}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}