:root{
  --ink:#0A0A0B;
  --ink-2:#3A3A42;
  --muted:#8E8C96;
  --faint:#D6D5DC;
  --hair:#ECEBF1;
  --purple:#6C31D9;
  --purple-lt:#7C4DEA;
  --panel:#F6F4FB;
  --ok:#2F8A4C;
  --ok-bg:#E3F4E8;
  --alert:#D23A3A;
  --alert-bg:#FCEBEB;
  --gutter:clamp(16px,4vw,40px);
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{background:#fff}
body{margin:0;background:#fff;color:var(--ink);font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;font-weight:400;-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}
h1,h2,h3,p{margin:0}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
.mono{font-family:var(--mono);font-feature-settings:"zero" 1}
.muted{color:var(--muted)}
.hidden{display:none!important}

/* top bar */
.top{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:24px;height:68px;padding:0 var(--gutter);background:rgba(255,255,255,.86);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--hair)}
.logo{display:inline-flex;align-items:center;font-size:19px;font-weight:500;letter-spacing:.18em;line-height:1;text-decoration:none;flex:none}
.logo .o{width:.86em;height:.86em;margin:0 .16em 0 .02em;transform:translateY(.02em)}
.tabs{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;flex:1;min-width:0}
.tabs::-webkit-scrollbar{display:none}
.tabs a{padding:8px 12px;border-radius:999px;font-size:13.5px;font-weight:500;color:var(--ink-2);text-decoration:none;white-space:nowrap;transition:background .25s,color .25s}
.tabs a:hover{background:var(--panel);color:var(--ink)}
.tabs a.on{background:var(--ink);color:#fff}
.who{flex:none;display:flex;align-items:center;gap:8px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--purple);color:#fff;border-radius:999px;padding:11px 22px;font-size:14px;font-weight:600;letter-spacing:-.01em;text-decoration:none;box-shadow:0 6px 20px rgba(108,49,217,.26);transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .35s var(--ease),opacity .2s;white-space:nowrap}
.btn:hover{transform:translateY(-1px);background:var(--purple-lt);box-shadow:0 10px 28px rgba(108,49,217,.34)}
.btn:disabled{opacity:.45;pointer-events:none;box-shadow:none}
.btn.ghost{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--hair)}
.btn.ghost:hover{background:var(--panel)}
.btn.sm{padding:7px 14px;font-size:12.5px}
.btn.wide{width:100%}
.chipbtn{display:inline-flex;align-items:center;gap:8px;padding:7px 14px 7px 8px;border-radius:999px;background:var(--panel);font-size:13px;font-weight:500}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);flex:none}
.dot.warn{background:var(--alert)}

/* layout */
.view{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:40px var(--gutter) 72px}
.head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.head h1{font-size:clamp(28px,3.4vw,42px);font-weight:400;letter-spacing:-.032em;line-height:1.1}
.head p{margin-top:10px;color:var(--ink-2);font-size:14.5px;line-height:1.55;max-width:620px}
.pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border-radius:999px;padding:5px 14px 5px 5px;font-size:12.5px;font-weight:500;letter-spacing:-.005em;box-shadow:0 2px 14px rgba(24,16,56,.10);white-space:nowrap;margin-bottom:16px}
.pill svg{width:22px;height:22px}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:16px;align-items:start}
.card{background:var(--panel);border-radius:22px;padding:24px}
.card.white{background:#fff;box-shadow:inset 0 0 0 1px var(--hair)}
.card h2{font-size:18px;font-weight:500;letter-spacing:-.02em}
.card h3{font-size:12px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.card .sub{margin-top:6px;font-size:13px;line-height:1.5;color:var(--ink-2)}
.stat .v{margin-top:10px;font-size:clamp(24px,2.4vw,32px);letter-spacing:-.03em;font-weight:400}
.stat .u{font-size:13px;color:var(--muted);margin-left:6px;letter-spacing:0}
.stat .s{margin-top:6px;font-size:12.5px;color:var(--ink-2)}
.big{font-size:clamp(34px,4vw,52px);letter-spacing:-.04em;font-weight:400;line-height:1}

/* forms */
.field{margin-top:16px}
.field label{display:flex;justify-content:space-between;font-size:12.5px;color:var(--ink-2);margin-bottom:8px}
.field label button{color:var(--purple);font-weight:500;font-size:12.5px}
.inp{display:flex;align-items:center;gap:10px;background:#fff;border-radius:14px;padding:4px 6px 4px 16px;box-shadow:inset 0 0 0 1px var(--hair);transition:box-shadow .2s}
.inp:focus-within{box-shadow:inset 0 0 0 1.5px var(--purple)}
.inp input,.inp select{flex:1;min-width:0;border:0;outline:0;background:none;padding:11px 0;font-size:16px}
.inp input.amount{font-size:22px;letter-spacing:-.02em}
.inp .tag{flex:none;font-size:13px;font-weight:600;color:var(--ink-2);padding:8px 10px;border-radius:10px;background:var(--panel)}
.inp select.tag{flex:none;padding:8px 10px;font-size:13px;font-weight:600;border-radius:10px;background:var(--panel);cursor:pointer}
textarea.ta{width:100%;border:0;outline:0;background:#fff;border-radius:14px;padding:12px 14px;box-shadow:inset 0 0 0 1px var(--hair);resize:vertical;min-height:84px;font-size:14px;line-height:1.5}
textarea.ta:focus{box-shadow:inset 0 0 0 1.5px var(--purple)}
.lines{margin-top:16px;border-top:1px solid var(--hair)}
.line{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--hair);font-size:13.5px}
.line span:first-child{color:var(--ink-2)}
.line span:last-child{text-align:right}
.actions{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.note{margin-top:14px;font-size:12.5px;line-height:1.55;color:var(--ink-2)}
.warnbox{margin-top:14px;padding:12px 14px;border-radius:12px;background:var(--alert-bg);color:#7A1F1F;font-size:13px;line-height:1.5}
.okbox{margin-top:14px;padding:12px 14px;border-radius:12px;background:var(--ok-bg);color:#17311F;font-size:13px;line-height:1.5;word-break:break-word}
.infobox{margin-top:14px;padding:12px 14px;border-radius:12px;background:#fff;box-shadow:inset 0 0 0 1px var(--hair);font-size:13px;line-height:1.5;color:var(--ink-2)}
.flipbtn{display:grid;place-items:center;width:40px;height:40px;margin:10px auto -2px;border-radius:12px;background:#fff;box-shadow:inset 0 0 0 1px var(--hair);transition:transform .35s var(--ease)}
.flipbtn:hover{transform:rotate(180deg)}
.flipbtn svg{width:18px;height:18px}
.seg{display:inline-flex;background:#fff;border-radius:999px;padding:4px;box-shadow:inset 0 0 0 1px var(--hair)}
.seg button{padding:8px 16px;border-radius:999px;font-size:13px;font-weight:500;color:var(--ink-2)}
.seg button.on{background:var(--ink);color:#fff}

/* terms */
.terms{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:6px}
.term{background:#fff;border-radius:16px;padding:16px;text-align:left;box-shadow:inset 0 0 0 1px var(--hair);transition:box-shadow .2s}
.term.on{box-shadow:inset 0 0 0 1.5px var(--purple)}
.term .d{font-size:13px;color:var(--ink-2)}
.term .r{margin-top:8px;font-size:24px;letter-spacing:-.03em}

/* tables */
.table{width:100%;border-collapse:collapse;font-size:13.5px}
.table th{text-align:left;font-weight:500;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:10px 12px;border-bottom:1px solid var(--hair)}
.table td{padding:12px;border-bottom:1px solid var(--hair);vertical-align:middle}
.table tr:last-child td{border-bottom:0}
.table .r{text-align:right}
.tablewrap{overflow-x:auto;margin:0 -8px}
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:11.5px;font-weight:500;background:#fff;box-shadow:inset 0 0 0 1px var(--hair)}
.badge.ok{background:var(--ok-bg);box-shadow:none;color:#17311F}
.badge.warn{background:var(--alert-bg);box-shadow:none;color:#7A1F1F}
.badge.purple{background:#EFE9FD;box-shadow:none;color:#4A1FA0}
.empty{padding:28px 0;text-align:center;color:var(--muted);font-size:13.5px}
.tx{font-family:var(--mono);font-size:12px;color:var(--purple);text-decoration:none}
.tx:hover{text-decoration:underline}

/* playground */
.pg{display:grid;grid-template-columns:300px minmax(0,1fr);gap:16px;align-items:start}
.chat{display:flex;flex-direction:column;min-height:520px}
.msgs{flex:1;display:flex;flex-direction:column;gap:14px;padding:4px 2px 18px;min-height:380px}
.msg{max-width:88%;padding:12px 16px;border-radius:16px;font-size:14px;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.msg.user{align-self:flex-end;background:var(--ink);color:#fff;border-bottom-right-radius:6px}
.msg.assistant{align-self:flex-start;background:#fff;box-shadow:inset 0 0 0 1px var(--hair);border-bottom-left-radius:6px}
.msg .meta{margin-top:8px;font-size:11.5px;color:var(--muted);white-space:normal}
.msg.err{background:var(--alert-bg);color:#7A1F1F;box-shadow:none}
.composer{display:flex;gap:10px;align-items:flex-end;background:#fff;border-radius:18px;padding:8px 8px 8px 16px;box-shadow:inset 0 0 0 1px var(--hair)}
.composer textarea{flex:1;border:0;outline:0;resize:none;min-height:44px;max-height:200px;padding:10px 0;font-size:14.5px;line-height:1.5;background:none}
.modellist{max-height:280px;overflow:auto;margin-top:8px;border-radius:12px;background:#fff;box-shadow:inset 0 0 0 1px var(--hair)}
.modellist button{display:flex;justify-content:space-between;gap:8px;width:100%;text-align:left;padding:9px 12px;font-size:12.5px;border-bottom:1px solid var(--hair)}
.modellist button:hover{background:var(--panel)}
.modellist button.on{background:#EFE9FD}
.modellist button .p{color:var(--muted);font-family:var(--mono);font-size:11px;white-space:nowrap}
.modellist button[disabled]{opacity:.5}

/* code */
pre.code{margin:12px 0 0;padding:16px 18px;border-radius:16px;background:#0F0E14;color:#E8E6F0;font-family:var(--mono);font-size:12.5px;line-height:1.65;overflow-x:auto;white-space:pre}
.secret{display:flex;gap:10px;align-items:center;margin-top:12px;padding:12px 14px;border-radius:12px;background:#0F0E14;color:#fff;font-family:var(--mono);font-size:12.5px;word-break:break-all}

/* docs */
.docs{display:grid;grid-template-columns:200px minmax(0,1fr);gap:40px;align-items:start}
.toc{position:sticky;top:96px;display:grid;gap:4px}
.toc a{font-size:13px;color:var(--ink-2);text-decoration:none;padding:5px 0}
.toc a:hover{color:var(--purple)}
.doc h2{font-size:24px;font-weight:400;letter-spacing:-.025em;margin:40px 0 12px;scroll-margin-top:90px}
.doc h2:first-child{margin-top:0}
.doc h3{font-size:15px;font-weight:600;margin:22px 0 8px}
.doc p,.doc li{font-size:14.5px;line-height:1.7;color:var(--ink-2)}
.doc p{margin:0 0 12px}
.doc ul,.doc ol{margin:0 0 12px;padding-left:20px}
.doc code{font-family:var(--mono);font-size:12.5px;background:var(--panel);padding:2px 6px;border-radius:6px}
.doc .table{margin:8px 0 16px}

/* toast + modal */
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:var(--ink);color:#fff;padding:12px 18px;border-radius:14px;font-size:13.5px;max-width:min(560px,calc(100vw - 32px));box-shadow:0 12px 40px rgba(10,10,11,.25);transition:opacity .3s,transform .4s var(--ease);z-index:100}
.toast.on{opacity:1;transform:translate(-50%,0)}
.toast.err{background:#7A1F1F}
.modal{position:fixed;inset:0;z-index:90;display:grid;place-items:center;background:rgba(10,10,11,.32);padding:16px}
.modal[hidden]{display:none}
.modal .box{background:#fff;border-radius:22px;padding:24px;width:min(420px,100%);box-shadow:0 30px 80px rgba(10,10,11,.25)}
.modal .box h2{font-size:18px;font-weight:500;letter-spacing:-.02em}
.wallets{display:grid;gap:8px;margin-top:16px}
.wallets button{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;background:var(--panel);font-size:14px;font-weight:500;text-align:left}
.wallets button:hover{background:#EFE9FD}
.wallets img{width:26px;height:26px;border-radius:7px}

.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px var(--gutter);border-top:1px solid var(--hair);font-size:12.5px;color:var(--muted)}
.foot a{color:var(--ink-2);text-decoration:none;margin-left:16px}
.foot a:hover{color:var(--purple)}

.skel{display:inline-block;min-width:60px;height:1em;border-radius:6px;background:linear-gradient(90deg,#EEECF4,#F7F6FA,#EEECF4);background-size:200% 100%;animation:sk 1.2s linear infinite;vertical-align:middle}
@keyframes sk{to{background-position:-200% 0}}

@media (max-width:980px){
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split,.pg,.docs{grid-template-columns:1fr}
  .toc{position:static;display:flex;flex-wrap:wrap;gap:6px 14px}
}
@media (max-width:640px){
  .top{height:auto;flex-wrap:wrap;padding-top:12px;padding-bottom:8px;gap:10px}
  .tabs{order:3;flex-basis:100%}
  .who{margin-left:auto}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .terms{grid-template-columns:1fr}
  .view{padding-top:28px}
  .card{padding:20px;border-radius:18px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}}