/* NumberCodes API docs: спокойная нейтральная палитра, тонкие линии, без декора */
:root{
  color-scheme:dark light;
  --bg:#0c0c0d;
  --surface:#131314;
  --surface-2:#1a1a1c;
  --line:#262628;
  --line-2:#353538;
  --text:#ececee;
  --muted:#9b9ba1;
  --faint:#6c6c72;
  --primary:#ececee;
  --on-primary:#0c0c0d;
  --ok:#86b596;
  --bad:#d08f8f;
  --warn:#cdb685;
  --c-key:#b8c0d4;--c-str:#a9bfa6;--c-num:#cdb78d;--c-lit:#bfa9cc;
  --ease:cubic-bezier(.2,.8,.2,1);
  --font:"IBM Plex Sans","Inter","Segoe UI",system-ui,-apple-system,sans-serif;
  --mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --top:52px;--side:264px;--r:10px;
}
@media (prefers-color-scheme:light){
  :root{
    --bg:#fbfbfa;--surface:#ffffff;--surface-2:#f2f2f0;--line:#e6e6e2;--line-2:#d3d3ce;
    --text:#19191b;--muted:#5d5d63;--faint:#8c8c92;--primary:#19191b;--on-primary:#fbfbfa;
    --ok:#2f6b45;--bad:#a13c3c;--warn:#8a6a1f;
    --c-key:#3b4a73;--c-str:#2f6b45;--c-num:#8a6a1f;--c-lit:#6b4a8a;
  }
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--top) + 20px);-webkit-text-size-adjust:100%;background:var(--bg)}
body{background:var(--bg);color:var(--text);font:16px/1.65 var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden;min-height:100vh}
a{color:var(--text);text-decoration:underline;text-decoration-color:var(--line-2);text-underline-offset:3px;transition:text-decoration-color .2s}
a:hover{text-decoration-color:var(--text)}
:focus-visible{outline:2px solid var(--text);outline-offset:2px;border-radius:6px}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;-webkit-tap-highlight-color:transparent}
code,pre{font-family:var(--mono)}

/* flat surfaces (the .glass class name is kept in the markup) */
.glass{background:var(--surface);border:1px solid var(--line);border-radius:var(--r)}
.press{transition:transform .25s var(--ease),background .2s,border-color .2s}
.press:active{transform:scale(.98);transition-duration:.1s}

/* ---------- top bar ---------- */
.top{position:fixed;inset:0 0 auto 0;height:var(--top);z-index:50;display:flex;align-items:center;gap:14px;padding:0 20px;background:var(--bg);border:0;border-bottom:1px solid var(--line);border-radius:0}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--text);text-decoration:none;letter-spacing:-.01em}
.brand img{width:24px;height:24px;border-radius:6px}
.brand small{font-weight:400;color:var(--faint);font-size:14px}
.grow{flex:1}
.keybox{display:flex;align-items:center;gap:9px;height:34px;padding:0 12px;border-radius:8px;background:var(--surface);border:1px solid var(--line);transition:border-color .2s}
.keybox:focus-within{border-color:var(--muted)}
.keybox .dot{width:7px;height:7px;border-radius:50%;background:var(--faint)}
.keybox.set .dot{background:var(--ok)}
.keybox input{background:none;border:0;outline:0;width:170px;font:13px var(--mono)}
.keybox input::placeholder{color:var(--faint)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line-2);background:transparent;border-radius:8px;padding:6px 14px;font-size:14px;font-weight:500;color:var(--text);text-decoration:none;user-select:none}
.btn:hover{background:var(--surface-2)}
.btn.primary{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}
.btn.primary:hover{opacity:.9;background:var(--primary)}
.btn:disabled{opacity:.5;cursor:default}
.key-ico{display:none;position:relative;width:36px;height:36px;border-radius:8px;place-items:center;background:none;border:0;color:var(--muted)}
.key-ico .dot{position:absolute;right:5px;top:5px}
.fab{display:none;position:fixed;left:50%;bottom:calc(14px + env(safe-area-inset-bottom));transform:translateX(-50%);z-index:58;align-items:center;gap:9px;height:46px;padding:0 18px;border-radius:999px;font-size:15px;font-weight:500;max-width:calc(100vw - 28px);color:var(--text);box-shadow:0 8px 24px -10px rgba(0,0,0,.5)}
.fab:active{transform:translateX(-50%) scale(.97)}
.fab span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60vw}

/* ---------- layout ---------- */
.shell{display:grid;grid-template-columns:var(--side) minmax(0,1fr);padding-top:var(--top);max-width:1500px;margin-inline:auto}
.side{position:sticky;top:var(--top);height:calc(100vh - var(--top));overflow-y:auto;padding:22px 14px 40px 20px;border-right:1px solid var(--line);scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}
.search{width:100%;height:36px;border-radius:8px;padding:0 12px;background:var(--surface);border:1px solid var(--line);outline:0;font-size:14.5px;margin-bottom:12px;transition:border-color .2s}
.search:focus{border-color:var(--muted)}
#nav{position:relative}
.nav-ind{position:absolute;left:0;top:0;width:100%;height:0;border-radius:8px;background:var(--surface-2);transition:transform .35s var(--ease),height .35s var(--ease),opacity .2s;opacity:0;pointer-events:none}
.side h6{font-size:12.5px;font-weight:500;color:var(--faint);margin:20px 0 4px 10px}
.side a{position:relative;z-index:1;display:flex;align-items:center;gap:8px;padding:6px 10px;border-radius:8px;color:var(--muted);font-size:14.5px;line-height:1.4;text-decoration:none;transition:color .2s}
.side a:hover,.side a.on{color:var(--text)}
.side a i{font:500 10px var(--mono);font-style:normal;width:34px;flex:none;text-align:right;color:var(--faint)}
.side a i.DELETE{color:var(--bad)}
.side a.hide{display:none}
.none{display:none;color:var(--faint);font-size:14px;padding:6px 10px}
main{min-width:0;padding:0 clamp(18px,4vw,56px) 120px}

/* ---------- hero ---------- */
.hero{padding:56px 0 24px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px;align-items:start;max-width:1200px}
.hero h1{font-size:clamp(32px,4.4vw,46px);line-height:1.1;letter-spacing:-.03em;font-weight:600;max-width:15em}
.hero p.sub{color:var(--muted);font-size:17px;margin-top:14px;max-width:32em}
.bases{display:grid;gap:8px;margin-top:24px;max-width:560px}
.base{display:flex;align-items:center;gap:12px;padding:8px 8px 8px 14px;min-width:0}
.base span{font-size:13px;color:var(--muted);white-space:nowrap;min-width:92px}
.base code{flex:1;font-size:13px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.base code::-webkit-scrollbar{display:none}
.cta{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.in{opacity:1}

/* demo: static example of the flow */
.demo{padding:0;overflow:hidden}
.demo .bar{display:flex;align-items:center;gap:7px;padding:10px 14px;border-bottom:1px solid var(--line)}
.demo .bar b{width:9px;height:9px;border-radius:50%;background:var(--line-2)}
.demo .bar span{margin-left:6px;font-size:12.5px;color:var(--faint)}
.demo .scr{padding:14px 16px 16px;min-height:200px;font:12.8px/1.8 var(--mono);color:var(--muted)}
.demo .ln{opacity:0;transition:opacity .5s var(--ease);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.demo .ln.show{opacity:1}
.demo .m{font-weight:600;color:var(--text)}
.demo .st{color:var(--ok)}
.sms{margin-top:12px;display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;background:var(--surface-2);border:1px solid var(--line);font-family:var(--font);opacity:0;transition:opacity .6s var(--ease)}
.sms.show{opacity:1}
.sms .ic{width:34px;height:34px;flex:none}
.sms .ic svg{width:100%;height:100%;display:block}
.sms small{display:block;color:var(--faint);font-size:12.5px;line-height:1.3}
.sms .code{display:flex;gap:2px;margin-top:2px}
.sms .code i{font:600 18px var(--mono);font-style:normal;color:var(--text);opacity:0;letter-spacing:.06em}
.sms.show .code i{animation:fade .4s var(--ease) forwards;animation-delay:calc(var(--i)*.08s + .2s)}
@keyframes fade{to{opacity:1}}

/* ---------- sections / prose ---------- */
.sec{padding:52px 0 0;max-width:1200px}
.sec>h2{font-size:clamp(23px,3vw,28px);letter-spacing:-.02em;line-height:1.2;font-weight:600;margin-bottom:8px}
.sec>.lead{color:var(--muted);max-width:44em;margin-bottom:20px;font-size:16.5px}
.sec h3.sub{font-size:17px;font-weight:600;margin:28px 0 8px}
.prose{max-width:46em}
.prose p{margin:0 0 14px;color:var(--muted)}
.prose ul,.prose ol{margin:0 0 16px 22px;color:var(--muted)}
.prose li{margin:5px 0}
.prose strong{color:var(--text);font-weight:600}
.inl,.prose code,td code,.cell-note code{font-size:.86em;background:var(--surface-2);border:1px solid var(--line);padding:1px 6px;border-radius:5px;color:var(--text);white-space:nowrap}
.panel{overflow:hidden;margin-bottom:18px}
.tw{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14.5px}
th,td{text-align:left;padding:10px 16px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
th{font-weight:500;color:var(--faint);font-size:13px}
td:first-child{white-space:nowrap}
.req{color:var(--bad);font-size:12px;margin-left:7px}
.ty{color:var(--faint);font:12px var(--mono)}
.cell-note{color:var(--muted)}
.note{padding:13px 16px;margin:0 0 18px;max-width:46em;font-size:15px;color:var(--muted)}
.note strong{color:var(--text)}
.note.warn{border-left:2px solid var(--warn)}

/* ---------- tabs ---------- */
.tabs{position:relative;display:flex;align-items:center;gap:2px;padding:3px;border-radius:9px;background:var(--surface-2);border:1px solid var(--line);overflow-x:auto;scrollbar-width:none;max-width:100%}
.tabs::-webkit-scrollbar{display:none}
.tab-ind{position:absolute;left:0;top:0;border-radius:6px;background:var(--bg);border:1px solid var(--line-2);transition:transform .35s var(--ease),width .35s var(--ease),height .35s var(--ease);pointer-events:none;opacity:0}
.tab{position:relative;z-index:1;display:inline-flex;align-items:center;gap:7px;background:none;border:0;border-radius:6px;padding:5px 12px;font-size:13.5px;font-weight:500;color:var(--muted);white-space:nowrap;transition:color .2s}
.tab:hover,.tab[aria-selected=true]{color:var(--text)}
.tab svg{width:15px;height:15px;flex:none;filter:grayscale(1);opacity:.6;transition:opacity .2s}
.tab[aria-selected=true] svg{opacity:1}

/* ---------- code ---------- */
.code{overflow:hidden;margin-bottom:14px}
.code .head{display:flex;align-items:center;gap:10px;padding:8px 10px;border-bottom:1px solid var(--line)}
.code .head .t{font-size:13px;color:var(--muted);margin-right:auto;padding-left:6px;white-space:nowrap}
.ep-code .code .head .t{display:none}
.ep-code .code .head{justify-content:space-between}
.ep-code .tabs .tab:not([aria-selected=true]){padding:5px 9px}
.ep-code .tabs .tab:not([aria-selected=true]) span{display:none}
pre{margin:0;padding:14px 16px;overflow:auto;font-size:12.8px;line-height:1.7;max-height:440px;tab-size:2;background:var(--surface);scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}
.k{color:var(--c-key)}.s{color:var(--c-str)}.n{color:var(--c-num)}.c{color:var(--faint)}.b{color:var(--c-lit)}

/* ---------- reference ---------- */
.filters{position:sticky;top:calc(var(--top) + 8px);z-index:20;margin:48px 0 0;max-width:min(100%,max-content);box-shadow:0 6px 20px -12px rgba(0,0,0,.5)}
.group-title{font-size:22px;font-weight:600;letter-spacing:-.015em;margin:40px 0 4px}
.group-lead{color:var(--muted);margin-bottom:14px;max-width:44em}
.ep{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,470px);gap:32px;padding:24px;margin:0 0 14px;max-width:1200px;transition:border-color .25s}
.ep:target{border-color:var(--muted)}
.ep-main{min-width:0}
.route{display:flex;align-items:center;gap:10px;margin-bottom:10px;min-width:0}
.mt{font:600 11.5px var(--mono);padding:3px 8px;border-radius:5px;flex:none;color:var(--text);background:var(--surface-2);border:1px solid var(--line-2)}
.mt.DELETE{color:var(--bad)}
.route code{font-size:13.5px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.route code::-webkit-scrollbar{display:none}
.ep h3{font-size:19px;letter-spacing:-.015em;font-weight:600;line-height:1.3;margin-bottom:6px}
.ep p.d{color:var(--muted);margin-bottom:12px;max-width:42em}
.codes{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 4px}
.codes span{font:12px var(--mono);padding:2px 9px;border-radius:5px;border:1px solid var(--line-2);color:var(--faint)}
.codes span.ok{color:var(--ok)}

/* spoiler */
.spoiler{margin-top:12px}
.spoiler>button{width:100%;display:flex;align-items:center;gap:10px;text-align:left;padding:10px 14px;border-radius:8px;background:var(--surface-2);border:1px solid var(--line);font-size:14.5px;font-weight:500}
.spoiler>button:hover{border-color:var(--line-2)}
.spoiler>button em{font-style:normal;font-weight:400;color:var(--faint);font-size:13px;margin-left:auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.spoiler>button .chev{width:17px;height:17px;flex:none;transition:transform .4s var(--ease);color:var(--muted)}
.spoiler.open>button .chev{transform:rotate(180deg)}
.spoiler .fold{display:grid;grid-template-rows:0fr;transition:grid-template-rows .45s var(--ease)}
.spoiler.open .fold{grid-template-rows:1fr}
.spoiler .fold>div{overflow:hidden;min-height:0}
.spoiler .inner{padding:12px 0 2px;opacity:0;transition:opacity .3s var(--ease)}
.spoiler.open .inner{opacity:1;transition-delay:.06s}
.spoiler h5{font-size:13px;font-weight:500;color:var(--muted);margin:12px 0 6px}
.spoiler h5:first-child{margin-top:0}
.spoiler .tw{border:1px solid var(--line);border-radius:8px;margin-bottom:6px;background:var(--surface)}

/* try-it */
.try{border-top:1px solid var(--line);padding:12px;display:grid;gap:10px;background:var(--surface)}
.try label{display:grid;gap:4px;font-size:12.5px;color:var(--muted)}
.try input,.try textarea{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:7px;padding:7px 10px;font:12.8px var(--mono);outline:0;transition:border-color .2s}
.try textarea{min-height:90px;resize:vertical;line-height:1.55}
.try input:focus,.try textarea:focus{border-color:var(--muted)}
.try .row{display:flex;align-items:center;gap:12px}
.try .row .hint{font-size:12.5px;color:var(--faint);margin-left:auto;text-align:right}
.btn.confirm{background:var(--warn);color:#17120a;border-color:var(--warn)}
.out{display:grid;grid-template-rows:1fr;transition:grid-template-rows .4s var(--ease)}
.out[hidden]{display:grid;grid-template-rows:0fr}
.out>div{overflow:hidden;min-height:0;border-top:1px solid var(--line)}
.out[hidden]>div{border-top-color:transparent}
.out .stl{display:flex;gap:12px;align-items:center;padding:7px 14px;font:12.5px var(--mono);color:var(--muted);border-bottom:1px solid var(--line)}
.out .stl b.ok{color:var(--ok)}.out .stl b.bad{color:var(--bad)}
.out pre{max-height:300px}

footer{max-width:1200px;margin-top:64px;padding:20px 2px 0;border-top:1px solid var(--line);color:var(--faint);font-size:14px;display:flex;flex-wrap:wrap;gap:8px 22px}
footer a{color:var(--muted)}
.loading{color:var(--muted);padding:40px 0}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:24px;z-index:90;display:flex;align-items:center;gap:9px;padding:10px 16px;border-radius:8px;font-size:14.5px;background:var(--surface-2);border:1px solid var(--line-2);opacity:0;pointer-events:none;transform:translate(-50%,12px);transition:opacity .25s,transform .35s var(--ease);box-shadow:0 10px 30px -12px rgba(0,0,0,.6)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast svg{width:18px;height:18px;flex:none;color:var(--ok)}
.toast svg path{stroke-dasharray:24;stroke-dashoffset:24}
.toast.show svg path{animation:tick .4s .08s ease forwards}
@keyframes tick{to{stroke-dashoffset:0}}
.toast.err svg{color:var(--bad)}

.scrim{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:55;opacity:0;pointer-events:none;transition:opacity .25s}

@media (max-width:1180px){
  .ep{grid-template-columns:minmax(0,1fr);gap:16px}
  .hero{grid-template-columns:minmax(0,1fr)}
}

/* =================== MOBILE =================== */
@media (max-width:900px){
  html{scroll-padding-top:116px}
  .shell{grid-template-columns:minmax(0,1fr)}
  .fab{display:flex}
  /* section list as a bottom sheet within thumb reach */
  .side{position:fixed;inset:auto 8px calc(70px + env(safe-area-inset-bottom)) 8px;width:auto;max-height:min(68vh,560px);height:auto;z-index:60;background:var(--surface);border:1px solid var(--line-2);border-radius:14px;padding:20px 12px 12px;transform:translateY(130%);transition:transform .4s var(--ease);overscroll-behavior:contain;box-shadow:0 20px 50px -20px rgba(0,0,0,.7)}
  body.nav-open .side{transform:none}
  body.nav-open .scrim{opacity:1;pointer-events:auto}
  .side::before{content:"";position:absolute;left:50%;top:8px;width:34px;height:4px;border-radius:4px;background:var(--line-2);transform:translateX(-50%)}
  .side a{padding:11px 10px;font-size:15.5px}
  .toast{bottom:calc(74px + env(safe-area-inset-bottom))}
  .brand small{display:none}
}
@media (max-width:720px){
  .top{padding:0 8px 0 14px}
  .keybox{height:auto;padding:0;background:none;border:0}
  .keybox>.dot-d{display:none}
  .key-ico{display:grid}
  .keybox input{display:none}
  .keybox.open{position:fixed;left:8px;right:8px;top:calc(var(--top) + 8px);height:48px;padding:0 14px;border-radius:10px;align-items:center;background:var(--surface);border:1px solid var(--line-2);box-shadow:0 16px 40px -12px rgba(0,0,0,.7);z-index:70}
  .keybox.open>.key-ico{display:none}
  .keybox.open>.dot-d{display:block}
  .keybox.open input{display:block;width:100%;font-size:16px}
  .btn.keybtn{display:none}
  main{padding:0 16px 150px}
  .hero{padding:32px 0 8px;gap:24px}
  .hero h1{font-size:30px}
  .hero p.sub{font-size:16px}
  .bases{margin-top:18px}
  .base{display:grid;grid-template-columns:1fr auto;gap:2px 10px;padding:11px 11px 11px 14px}
  .base span{grid-column:1;min-width:0}
  .base code{grid-column:1;grid-row:2;font-size:12.5px}
  .base .btn{grid-column:2;grid-row:1 / span 2;align-self:center}
  .cta .btn{flex:1 1 100%;min-height:44px}
  .demo .scr{padding:12px 14px;min-height:190px;font-size:12px}
  .sec{padding-top:40px}
  .sec>h2{font-size:23px}
  .sec>.lead{font-size:16px}
  .btn{min-height:40px;padding:8px 16px}
  .tab{min-height:36px}
  .ep{padding:16px;gap:14px}
  .ep h3{font-size:18px}
  .route code{font-size:12.5px}
  .group-title{margin-top:32px;font-size:21px}
  .filters{margin-top:32px;top:calc(var(--top) + 6px)}
  .spoiler>button{min-height:46px;padding:12px 14px}
  .spoiler>button em{display:none}
  .spoiler>button span{margin-right:auto}
  .tabs .tab:not([aria-selected=true]){padding:5px 10px}
  .tabs .tab:not([aria-selected=true]) span{display:none}
  .filters .tab:not([aria-selected=true]){padding:5px 12px}
  .filters .tab:not([aria-selected=true]) span{display:inline}
  #qs .head,#vBox .head{flex-wrap:wrap;row-gap:8px}
  #qs .tabs,#vBox .tabs{order:3;width:100%;justify-content:space-between}
  #qs .tabs .tab,#vBox .tabs .tab{flex:1;justify-content:center}
  pre{font-size:12px;padding:12px 14px;max-height:340px}
  .try input,.try textarea,.search{font-size:16px}
  .try .row{flex-wrap:wrap}
  .try .row .btn{flex:1 1 100%;min-height:46px}
  .try .row .hint{margin:0;text-align:left;flex:1 1 100%}
  /* tables as stacked rows */
  .tw{overflow:visible}
  .tw table,.tw tbody,.tw tr,.tw td{display:block;width:100%}
  .tw tr:has(th){display:none}
  .tw tr{padding:12px 14px;border-bottom:1px solid var(--line)}
  .tw tr:last-child{border-bottom:0}
  .tw td{padding:2px 0;border:0;white-space:normal!important}
  .tw td code,.tw td .inl{white-space:normal;word-break:break-word}
  .tw td:first-child{margin-bottom:3px}
  footer{margin-top:44px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .demo .ln,.sms{opacity:1}
}