/* Sellora documentation - brand: accent #117df8, ink #0a123d, muted #7b899d */
@font-face{font-family:"Plus Jakarta Sans";font-weight:200 800;font-display:swap;src:url("fonts/plus-jakarta-sans-latin-wght-normal.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Plus Jakarta Sans";font-weight:200 800;font-display:swap;src:url("fonts/plus-jakarta-sans-latin-ext-wght-normal.woff2") format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:Inter;font-weight:100 900;font-display:swap;src:url("fonts/inter-latin-wght-normal.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Inter;font-weight:100 900;font-display:swap;src:url("fonts/inter-latin-ext-wght-normal.woff2") format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:Inter;font-style:italic;font-weight:100 900;font-display:swap;src:url("fonts/inter-latin-wght-italic.woff2") format("woff2")}
@font-face{font-family:"JetBrains Mono";font-weight:100 800;font-display:swap;src:url("fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2")}

:root{
  --accent:#117df8;--accent-d:#0b63cc;--accent-soft:#eaf3ff;
  --ink:#0a123d;--body:#3a4468;--muted:#7b899d;
  --bg:#f5f7fb;--card:#fff;--line:#e6eaf2;
  --r:16px;--r-lg:24px;--shadow:0 6px 24px rgba(10,18,61,.06);--shadow-lg:0 16px 48px rgba(10,18,61,.12);
  --sbw:290px;--tbh:64px;
  --f-head:"Plus Jakarta Sans",system-ui,sans-serif;--f-body:Inter,system-ui,sans-serif;--f-mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--tbh) + 16px)}
body{margin:0;background:var(--bg);color:var(--body);font:16px/1.7 var(--f-body);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.ic{width:18px;height:18px;flex:none;stroke:currentColor}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:200}.skip:focus{left:8px}

/* top bar */
.topbar{position:sticky;top:0;z-index:50;height:var(--tbh);display:flex;align-items:center;gap:16px;padding:0 24px;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}.brand:hover{text-decoration:none}
.brand img{display:block;height:28px;width:auto}
.brand-doc{font:700 13px var(--f-head);color:var(--muted);padding-left:12px;border-left:1px solid var(--line);letter-spacing:.02em}
.icon-btn{background:none;border:0;color:var(--ink);cursor:pointer;border-radius:10px;padding:8px;font:inherit}
.icon-btn:hover{background:var(--bg)}
.menu-btn{display:none}
.search-btn{margin-left:auto;display:flex;align-items:center;gap:10px;min-width:260px;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--muted);font:500 14px var(--f-body);cursor:pointer}
.search-btn:hover{border-color:var(--accent)}
.search-btn kbd{margin-left:auto;font:600 11px var(--f-body);background:#fff;border:1px solid var(--line);border-radius:6px;padding:1px 6px}
.ver{font:700 12px var(--f-head);color:var(--accent);background:var(--accent-soft);padding:5px 10px;border-radius:99px}

/* shell */
.shell{display:grid;grid-template-columns:var(--sbw) minmax(0,1fr) 250px;max-width:1560px;margin:0 auto;align-items:start}
.shell.no-toc{grid-template-columns:var(--sbw) minmax(0,1fr)}
.sidebar{position:sticky;top:var(--tbh);height:calc(100vh - var(--tbh));padding:20px 8px 20px 20px}
.side-scroll{height:100%;overflow:auto;padding-right:12px}
.side-home,.nav-sec summary{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:12px;color:var(--ink);font:700 14px var(--f-head);cursor:pointer;list-style:none}
.nav-sec summary::-webkit-details-marker{display:none}
.side-home:hover,.nav-sec summary:hover{background:#fff;text-decoration:none}
.side-home.active{background:var(--accent-soft);color:var(--accent)}
.nav-sec{margin-top:4px}
.nav-sec summary .ic:first-child{color:var(--accent)}
.nav-sec summary .chev{margin-left:auto;color:var(--muted);transition:transform .2s}
.nav-sec[open] summary .chev{transform:rotate(180deg)}
.nav-sec ul{list-style:none;margin:2px 0 8px 21px;padding:0 0 0 12px;border-left:1px solid var(--line)}
.nav-sec li a{display:block;padding:6px 12px;border-radius:10px;color:var(--body);font-size:14px;line-height:1.4}
.nav-sec li a:hover{background:#fff;color:var(--ink);text-decoration:none}
.nav-sec li a.active{background:#fff;color:var(--accent);font-weight:600;box-shadow:var(--shadow)}
.scrim{display:none}

/* content */
.content{min-width:0;padding:32px 40px 24px}
.doc{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:44px 52px;max-width:880px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:8px}
.doc-title{font:800 34px/1.2 var(--f-head);color:var(--ink);margin:0 0 10px;letter-spacing:-.02em}
.lead{font-size:18px;color:var(--muted);margin:0 0 28px;line-height:1.6}
.doc h2{font:800 24px/1.3 var(--f-head);color:var(--ink);margin:44px 0 12px;padding-top:12px;border-top:1px solid var(--line);letter-spacing:-.01em}
.doc h3{font:700 18px/1.4 var(--f-head);color:var(--ink);margin:30px 0 8px}
.doc h4{font:700 15px var(--f-head);color:var(--ink);margin:22px 0 6px}
.headerlink{opacity:0;margin-left:8px;color:var(--muted);font-weight:400}
h2:hover .headerlink,h3:hover .headerlink{opacity:1}
.doc p,.doc li{overflow-wrap:anywhere}
.doc ul,.doc ol{padding-left:24px}.doc li{margin:4px 0}
.doc code{font:500 .88em var(--f-mono);background:#eef2f9;color:#0b3a8a;padding:2px 6px;border-radius:6px}
.doc pre code,.doc .hl code{background:none;color:inherit;padding:0}
.doc kbd{font:600 12px var(--f-body);background:#fff;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 6px}
.doc hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.doc blockquote{margin:16px 0;padding:4px 18px;border-left:4px solid var(--accent);background:var(--accent-soft);border-radius:0 12px 12px 0}
.tw{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:14px}
.doc table{border-collapse:collapse;width:100%;font-size:14.5px}
.doc th{background:var(--bg);color:var(--ink);text-align:left;font:700 13px var(--f-head);padding:10px 14px}
.doc td{padding:10px 14px;border-top:1px solid var(--line);vertical-align:top}
.doc th,.doc td{min-width:90px}

/* code */
.code-block,.doc pre{position:relative;background:#0f1733;color:#e6ecff;border-radius:14px;margin:16px 0}
.doc pre{padding:16px 18px;overflow:auto;font:13.5px/1.6 var(--f-mono)}
.code-block pre{margin:0;background:none}
.code-block{padding:0}
.code-block .copy{position:absolute;top:10px;right:10px;background:rgba(255,255,255,.1);color:#cdd8ff;border:0;border-radius:8px;padding:5px 10px;font:600 12px var(--f-body);cursor:pointer;opacity:0;transition:.15s}
.code-block:hover .copy,.copy:focus{opacity:1}.copy.done{background:#16a34a;color:#fff;opacity:1}
.hl .c,.hl .c1,.hl .cm{color:#8a97c4;font-style:italic}

/* callouts */
.admonition{margin:20px 0;padding:14px 18px 14px 18px;border-radius:14px;border:1px solid var(--line);border-left:4px solid var(--accent);background:var(--accent-soft)}
.admonition p{margin:6px 0}.admonition .admonition-title{margin:0 0 4px;font:800 13px var(--f-head);text-transform:uppercase;letter-spacing:.06em;color:var(--accent)}
.admonition.tip{border-left-color:#16a34a;background:#eafaf0}.admonition.tip .admonition-title{color:#15803d}
.admonition.warning,.admonition.danger{border-left-color:#e08a00;background:#fff6e5}.admonition.warning .admonition-title,.admonition.danger .admonition-title{color:#b45309}
.admonition.danger{border-left-color:#dc2626;background:#fdecec}.admonition.danger .admonition-title{color:#b91c1c}

/* figures */
.shot{margin:22px 0;text-align:center}
.shot a{display:block;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);cursor:zoom-in;background:#fff}
.shot img{display:block;width:100%}
.shot figcaption{font-size:13px;color:var(--muted);margin-top:8px}
.lightbox{position:fixed;inset:0;z-index:300;background:rgba(10,18,61,.88);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px}
.lightbox[hidden]{display:none}
.lightbox img{max-width:96vw;max-height:84vh;border-radius:12px;background:#fff}
.lightbox p{color:#fff;margin:12px 0 0;font-size:14px}
.lb-close{position:absolute;top:16px;right:20px;color:#fff;font-size:34px;line-height:1}.lb-close:hover{background:rgba(255,255,255,.15)}

/* toc */
.toc{position:sticky;top:calc(var(--tbh) + 24px);padding:32px 20px 24px 0;max-height:calc(100vh - var(--tbh));overflow:auto;font-size:13.5px}
.toc h2{font:800 12px var(--f-head);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}
.toc ul{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.toc a{display:block;padding:4px 12px;color:var(--body);line-height:1.4;margin-left:-2px;border-left:2px solid transparent}
.toc li.l3 a{padding-left:26px;font-size:13px}
.toc a:hover{color:var(--ink);text-decoration:none}
.toc a.on{color:var(--accent);border-left-color:var(--accent);font-weight:600}

/* prev next */
.pn{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:48px}
.pn a{display:block;border:1px solid var(--line);border-radius:var(--r);padding:14px 18px;color:var(--ink);transition:.15s}
.pn a:hover{border-color:var(--accent);box-shadow:var(--shadow);text-decoration:none}
.pn small{display:block;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.pn span{font:700 15px var(--f-head)}.pn .next{text-align:right}
.foot{max-width:880px;margin:20px 0 0;font-size:13px;color:var(--muted);text-align:center}

/* search */
.search-modal{position:fixed;inset:0;z-index:250;background:rgba(10,18,61,.5);display:flex;justify-content:center;align-items:flex-start;padding:10vh 16px 0}
.search-modal[hidden]{display:none}
.search-box{width:100%;max-width:640px;background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-lg);overflow:hidden}
.search-in{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);color:var(--muted)}
.search-in input{flex:1;border:0;outline:0;font:500 17px var(--f-body);color:var(--ink);background:none;min-width:0}
.s-close{font-size:12px;border:1px solid var(--line);padding:3px 8px}
.search-results{list-style:none;margin:0;padding:8px;max-height:56vh;overflow:auto}
.search-results a{display:block;padding:10px 14px;border-radius:12px;color:var(--body)}
.search-results a:hover,.search-results a.sel{background:var(--accent-soft);text-decoration:none}
.search-results strong{display:block;color:var(--ink);font:700 15px var(--f-head)}
.search-results small{color:var(--accent);font-weight:600}
.search-results span{display:block;font-size:13px;color:var(--muted);line-height:1.5}
.search-results mark{background:#ffe8a3;color:inherit;border-radius:3px}
.search-results .empty{padding:20px;text-align:center;color:var(--muted)}

/* landing */
.landing .content{padding-top:24px}
.hero{background:linear-gradient(135deg,#0a123d 0%,#102a76 60%,#117df8 130%);color:#fff;border-radius:var(--r-lg);padding:56px 52px;box-shadow:var(--shadow-lg);max-width:1100px}
.hero h1{font:800 44px/1.15 var(--f-head);margin:14px 0 12px;letter-spacing:-.02em;max-width:760px}
.hero p{font-size:18px;max-width:680px;color:#cfdcff;margin:0 0 28px}
.pill{display:inline-block;background:rgba(255,255,255,.14);padding:5px 14px;border-radius:99px;font:700 12px var(--f-head);letter-spacing:.04em}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#fff;border:0;border-radius:12px;padding:12px 22px;font:700 15px var(--f-head);cursor:pointer}
.btn:hover{background:var(--accent-d);text-decoration:none}
.btn.ghost{background:rgba(255,255,255,.12)}.btn.ghost:hover{background:rgba(255,255,255,.22)}
.quick-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin:24px 0;max-width:1100px}
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:20px}
.quick{display:flex;flex-direction:column;gap:4px;color:var(--body);transition:.15s}
.quick:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);text-decoration:none}
.quick strong{font:700 16px var(--f-head);color:var(--ink)}.quick>span:last-child{font-size:14px;color:var(--muted)}
.sc-ic{display:inline-flex;width:40px;height:40px;border-radius:12px;background:var(--accent-soft);color:var(--accent);align-items:center;justify-content:center;margin-bottom:8px}
.sec-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;max-width:1100px}
.sec-card h3{font:800 17px var(--f-head);color:var(--ink);margin:0 0 8px}
.sec-card ul{list-style:none;margin:0;padding:0}.sec-card li a{display:block;padding:4px 0;font-size:14.5px}
.sec-card .more a{font-weight:700}
.intro{margin-top:24px;max-width:1100px}

/* responsive */
@media (max-width:1250px){.shell{grid-template-columns:var(--sbw) minmax(0,1fr)}.toc{display:none}}
@media (max-width:900px){
  .menu-btn{display:block}
  .brand-doc{display:none}
  .search-btn{min-width:0;margin-left:auto}.search-btn span,.search-btn kbd{display:none}
  .topbar{padding:0 12px;gap:8px}
  .shell,.shell.no-toc{display:block}
  .sidebar{position:fixed;left:0;top:0;bottom:0;height:auto;width:min(86vw,320px);background:var(--bg);z-index:120;transform:translateX(-102%);transition:transform .25s;padding-top:76px;box-shadow:var(--shadow-lg)}
  body.nav-open .sidebar{transform:none}
  body.nav-open .scrim{display:block;position:fixed;inset:0;background:rgba(10,18,61,.45);z-index:110}
  .content{padding:16px}
  .doc{padding:26px 20px;border-radius:20px}
  .doc-title{font-size:27px}.doc h2{font-size:21px}
  .hero{padding:32px 22px}.hero h1{font-size:30px}
  .pn{grid-template-columns:1fr}
}
@media print{
  .topbar,.sidebar,.toc,.pn,.scrim,.search-modal,.lightbox,.copy,.headerlink,.foot,.hero-cta{display:none!important}
  body{background:#fff;font-size:11pt}
  .shell,.shell.no-toc{display:block}
  .content{padding:0}.doc{box-shadow:none;padding:0;max-width:none;border-radius:0}
  .code-block,.doc pre{background:#f3f5fa!important;color:#111!important;border:1px solid #ddd;white-space:pre-wrap}
  .shot a{box-shadow:none}.shot,.admonition,.tw{break-inside:avoid}
  a{color:inherit}
  .hero{background:#fff;color:#000;box-shadow:none;padding:0}.hero p{color:#333}
}

/* pygments (github-dark) */
.hl .hll { background-color: #6e7681 }
.hl .c { color: #8B949E; font-style: italic } /* Comment */
.hl .err { color: #F85149 } /* Error */
.hl .esc { color: #E6EDF3 } /* Escape */
.hl .g { color: #E6EDF3 } /* Generic */
.hl .k { color: #FF7B72 } /* Keyword */
.hl .l { color: #A5D6FF } /* Literal */
.hl .n { color: #E6EDF3 } /* Name */
.hl .o { color: #FF7B72; font-weight: bold } /* Operator */
.hl .x { color: #E6EDF3 } /* Other */
.hl .p { color: #E6EDF3 } /* Punctuation */
.hl .ch { color: #8B949E; font-style: italic } /* Comment.Hashbang */
.hl .cm { color: #8B949E; font-style: italic } /* Comment.Multiline */
.hl .cp { color: #8B949E; font-weight: bold; font-style: italic } /* Comment.Preproc */
.hl .cpf { color: #8B949E; font-style: italic } /* Comment.PreprocFile */
.hl .c1 { color: #8B949E; font-style: italic } /* Comment.Single */
.hl .cs { color: #8B949E; font-weight: bold; font-style: italic } /* Comment.Special */
.hl .gd { color: #FFA198; background-color: #490202 } /* Generic.Deleted */
.hl .ge { color: #E6EDF3; font-style: italic } /* Generic.Emph */
.hl .ges { color: #E6EDF3; font-weight: bold; font-style: italic } /* Generic.EmphStrong */
.hl .gr { color: #FFA198 } /* Generic.Error */
.hl .gh { color: #79C0FF; font-weight: bold } /* Generic.Heading */
.hl .gi { color: #56D364; background-color: #0F5323 } /* Generic.Inserted */
.hl .go { color: #8B949E } /* Generic.Output */
.hl .gp { color: #8B949E } /* Generic.Prompt */
.hl .gs { color: #E6EDF3; font-weight: bold } /* Generic.Strong */
.hl .gu { color: #79C0FF } /* Generic.Subheading */
.hl .gt { color: #FF7B72 } /* Generic.Traceback */
.hl .g-Underline { color: #E6EDF3; text-decoration: underline } /* Generic.Underline */
.hl .kc { color: #79C0FF } /* Keyword.Constant */
.hl .kd { color: #FF7B72 } /* Keyword.Declaration */
.hl .kn { color: #FF7B72 } /* Keyword.Namespace */
.hl .kp { color: #79C0FF } /* Keyword.Pseudo */
.hl .kr { color: #FF7B72 } /* Keyword.Reserved */
.hl .kt { color: #FF7B72 } /* Keyword.Type */
.hl .ld { color: #79C0FF } /* Literal.Date */
.hl .m { color: #A5D6FF } /* Literal.Number */
.hl .s { color: #A5D6FF } /* Literal.String */
.hl .na { color: #E6EDF3 } /* Name.Attribute */
.hl .nb { color: #E6EDF3 } /* Name.Builtin */
.hl .nc { color: #F0883E; font-weight: bold } /* Name.Class */
.hl .no { color: #79C0FF; font-weight: bold } /* Name.Constant */
.hl .nd { color: #D2A8FF; font-weight: bold } /* Name.Decorator */
.hl .ni { color: #FFA657 } /* Name.Entity */
.hl .ne { color: #F0883E; font-weight: bold } /* Name.Exception */
.hl .nf { color: #D2A8FF; font-weight: bold } /* Name.Function */
.hl .nl { color: #79C0FF; font-weight: bold } /* Name.Label */
.hl .nn { color: #FF7B72 } /* Name.Namespace */
.hl .nx { color: #E6EDF3 } /* Name.Other */
.hl .py { color: #79C0FF } /* Name.Property */
.hl .nt { color: #7EE787 } /* Name.Tag */
.hl .nv { color: #79C0FF } /* Name.Variable */
.hl .ow { color: #FF7B72; font-weight: bold } /* Operator.Word */
.hl .pm { color: #E6EDF3 } /* Punctuation.Marker */
.hl .w { color: #6E7681 } /* Text.Whitespace */
.hl .mb { color: #A5D6FF } /* Literal.Number.Bin */
.hl .mf { color: #A5D6FF } /* Literal.Number.Float */
.hl .mh { color: #A5D6FF } /* Literal.Number.Hex */
.hl .mi { color: #A5D6FF } /* Literal.Number.Integer */
.hl .mo { color: #A5D6FF } /* Literal.Number.Oct */
.hl .sa { color: #79C0FF } /* Literal.String.Affix */
.hl .sb { color: #A5D6FF } /* Literal.String.Backtick */
.hl .sc { color: #A5D6FF } /* Literal.String.Char */
.hl .dl { color: #79C0FF } /* Literal.String.Delimiter */
.hl .sd { color: #A5D6FF } /* Literal.String.Doc */
.hl .s2 { color: #A5D6FF } /* Literal.String.Double */
.hl .se { color: #79C0FF } /* Literal.String.Escape */
.hl .sh { color: #79C0FF } /* Literal.String.Heredoc */
.hl .si { color: #A5D6FF } /* Literal.String.Interpol */
.hl .sx { color: #A5D6FF } /* Literal.String.Other */
.hl .sr { color: #79C0FF } /* Literal.String.Regex */
.hl .s1 { color: #A5D6FF } /* Literal.String.Single */
.hl .ss { color: #A5D6FF } /* Literal.String.Symbol */
.hl .bp { color: #E6EDF3 } /* Name.Builtin.Pseudo */
.hl .fm { color: #D2A8FF; font-weight: bold } /* Name.Function.Magic */
.hl .vc { color: #79C0FF } /* Name.Variable.Class */
.hl .vg { color: #79C0FF } /* Name.Variable.Global */
.hl .vi { color: #79C0FF } /* Name.Variable.Instance */
.hl .vm { color: #79C0FF } /* Name.Variable.Magic */
.hl .il { color: #A5D6FF } /* Literal.Number.Integer.Long */