@font-face{font-family:"Bricolage Grotesque";src:url("fonts/bricolage-grotesque-latin-wght-normal.woff2") format("woff2");font-weight:200 800;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url("fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap}

/* ===== Tokens ===== */
:root{
  --font:"Bricolage Grotesque",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --red-dot:#FF3B2F;
  --topbar:60px; --tree:272px; --rail:224px; --measure:68ch; --wide:880px;
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --ground:#141414; --sunken:#0F0F0F; --raised:#1A1A1A; --hover:#1C1C1C; --active:#222222; --selected:#1F1F1F;
  --title:#FFF8EC; --body:#D9D2C5; --muted:#A8A196;
  --line-row:#1F1F1F; --line-tab:#242424; --line-menu:#2A2A2A; --line-dialog:#2C2C2C;
  --accent:#FF3B2F; --accent-hover:#FF5A4F; --accent-press:#E2301F;
  --scrim:rgba(8,8,8,.72); --shadow:0 24px 64px -16px rgba(0,0,0,.7),0 0 0 1px var(--line-dialog);
  --logo:url("logo/pictures-up-lockup-horizontal-cream.svg");
}
:root[data-theme="light"]{
  color-scheme:light;
  --ground:#FFF8EC; --sunken:#F7EFDF; --raised:#FFFCF6; --hover:#F4EBDA; --active:#EEE4D1; --selected:#E7DCC7;
  --title:#141414; --body:#3A3732; --muted:#6B665E;
  --line-row:#E2E2DF; --line-tab:#DADAD6; --line-menu:#BDBDB8; --line-dialog:#BDBDB8;
  --accent:#D92B1E; --accent-hover:#C02417; --accent-press:#C02417;
  --scrim:rgba(20,20,20,.38); --shadow:0 24px 64px -20px rgba(20,20,20,.35),0 0 0 1px var(--line-dialog);
  --logo:url("logo/pictures-up-lockup-horizontal-ink.svg");
}

/* ===== Base ===== */
*,*::before,*::after{box-sizing:border-box}
html{background:var(--ground);-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--topbar) + 24px)}
body{margin:0;background:var(--ground);color:var(--body);font:400 17px/1.65 var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--title);outline-offset:2px;border-radius:4px}
@media (prefers-reduced-motion:no-preference){
  .t{transition:background-color .15s ease,color .15s ease,border-color .15s ease,opacity .15s ease}
  .sheet{transition:transform .22s cubic-bezier(.2,.7,.2,1)}
}
.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;z-index:100;background:var(--title);color:var(--ground);padding:10px 14px;border-radius:8px;font-weight:600;text-decoration:none}
.skip:focus{top:10px}
kbd,.kbd{font-family:var(--mono);font-size:.78em;line-height:1;display:inline-block;padding:.28em .45em .24em;border-radius:5px;border:1px solid var(--line-menu);border-bottom-width:2px;color:var(--title);background:var(--raised);white-space:nowrap;vertical-align:.08em}
.icon{width:18px;height:18px;flex:none;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.iconbtn{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border:0;background:transparent;border-radius:8px;color:var(--body);cursor:pointer}
.iconbtn:hover{background:var(--hover);color:var(--title)}

/* ===== Top bar ===== */
.top{position:sticky;top:0;z-index:20;height:var(--topbar);background:var(--ground);border-bottom:1px solid var(--line-row);display:flex;align-items:center;gap:16px;padding:0 20px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;flex:none}
.lockup{display:block;width:124px;height:24px;background:var(--logo) left center/contain no-repeat}
.sitename{font-weight:700;font-size:17px;letter-spacing:-.02em;color:var(--title);padding-left:14px;border-left:1px solid var(--line-menu);line-height:22px}
.searchbtn{margin-left:24px;flex:0 1 340px;height:38px;display:flex;align-items:center;gap:10px;padding:0 8px 0 12px;border-radius:9px;border:1px solid var(--line-tab);background:var(--raised);color:var(--muted);cursor:pointer;text-align:left}
.searchbtn:hover{border-color:var(--line-menu);color:var(--body)}
.searchbtn span{flex:1;font-size:15px}
.topnav{margin-left:auto;display:flex;align-items:center;gap:6px}
.toplink{font-size:15px;color:var(--body);text-decoration:none;padding:8px 10px;border-radius:8px;display:inline-flex;align-items:center;gap:6px}
.toplink:hover{color:var(--title);background:var(--hover)}
.toplink.btn{border:1px solid var(--line-menu);padding:7px 14px;color:var(--title)}
.toplink.btn:hover{border-color:var(--title);background:transparent}
.menu-btn,.search-icon{display:none}

/* ===== Shell ===== */
.shell{display:grid;grid-template-columns:var(--tree) minmax(0,1fr) var(--rail);max-width:1520px;margin:0 auto}
.tree{position:sticky;top:var(--topbar);height:calc(100vh - var(--topbar));overflow:auto;padding:24px 16px 40px 20px;border-right:1px solid var(--line-row);overscroll-behavior:contain}
.tree-group{margin:0 0 22px}
.tree-label{font-size:13px;font-weight:600;color:var(--muted);padding:0 10px 6px;letter-spacing:.01em}
.tree ul{list-style:none;margin:0;padding:0}
.tree li ul{margin:2px 0 4px 14px;padding-left:8px;border-left:1px solid var(--line-tab)}
.tree a{position:relative;display:block;padding:6px 10px;border-radius:7px;font-size:15px;line-height:1.4;color:var(--body);text-decoration:none}
.tree a:hover{background:var(--hover);color:var(--title)}
.tree a[aria-current="page"]{color:var(--title);font-weight:650;padding-left:24px}
.tree a[aria-current="page"]::before{content:"";position:absolute;left:9px;top:calc(6px + .7em - 3.5px);width:7px;height:7px;border-radius:50%;background:var(--red-dot);box-shadow:0 0 0 3px color-mix(in srgb,var(--red-dot) 22%,transparent)}
.tree-foot{margin-top:28px;padding:16px 10px 0;border-top:1px solid var(--line-row);font-size:13px;color:var(--muted)}

.main{min-width:0;padding:40px clamp(20px,4vw,56px) 80px}
.article{max-width:var(--wide);margin:0 auto}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:14px;font-weight:600;color:var(--muted);margin:0 0 16px}
.crumbs a{text-decoration:none;color:var(--muted)}
.crumbs a:hover{color:var(--title)}
.crumbs .sep{color:var(--line-menu);font-weight:400}

/* ===== Right rail ===== */
.rail{position:sticky;top:var(--topbar);height:calc(100vh - var(--topbar));overflow:auto;padding:40px 20px 40px 8px}
.rail h2,.otp summary{font-size:13px;font-weight:600;color:var(--muted);margin:0 0 10px;letter-spacing:.01em}
.rail ul,.otp ul{list-style:none;margin:0;padding:0;border-left:1px solid var(--line-tab)}
.rail li a,.otp li a{display:block;position:relative;padding:5px 0 5px 14px;font-size:14px;line-height:1.4;color:var(--muted);text-decoration:none}
.rail li a:hover,.otp li a:hover{color:var(--title)}
.rail li a.on{color:var(--title);font-weight:600}
.rail li a.on::before{content:"";position:absolute;left:-4px;top:12px;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.rail li.sub a{padding-left:46px;font-size:13.5px}
.rail li a,.otp li a{display:flex}
.rail .n,.otp .n{flex:none;display:inline-block;width:24px;padding-top:2px;font:500 11.5px var(--mono);color:var(--muted);letter-spacing:0}
.rail li a.on .n{color:var(--title)}
.num{display:block;font:500 13px/1 var(--mono);color:var(--muted);letter-spacing:0;margin:0 0 10px}
.otp{display:none;margin:0 0 28px;border:1px solid var(--line-tab);border-radius:10px;background:var(--raised)}
.otp summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;margin:0;padding:12px 16px;font-size:14px;color:var(--title)}
.otp summary::-webkit-details-marker{display:none}
.otp[open] summary svg{transform:rotate(180deg)}
.otp ul{margin:0 16px 14px}
.prose .otp ul{padding-left:0}
.prose .otp li{margin:0;padding:0}
.prose .otp a{text-decoration:none;color:var(--body)}
.prose .otp a:hover{color:var(--title)}
.prose .otp li.sub a{padding-left:26px}

/* ===== Prose ===== */
.prose>*{max-width:var(--measure)}
.prose>figure,.prose>.table,.prose>.cards,.prose>.example{max-width:none}
.prose h1{font-weight:800;font-size:clamp(34px,4.2vw,50px);line-height:1.02;letter-spacing:-.04em;color:var(--title);margin:0 0 18px;text-wrap:balance}
.prose h2,.prose h3{position:relative;font-weight:800;color:var(--title);scroll-margin-top:calc(var(--topbar) + 24px)}
.prose h2{font-size:clamp(24px,2.4vw,29px);line-height:1.12;letter-spacing:-.03em;margin:56px 0 14px;padding-top:28px;border-top:1px solid var(--line-row)}
.prose h3{font-size:19px;line-height:1.25;letter-spacing:-.02em;font-weight:700;margin:36px 0 10px}
.anchor{position:absolute;left:-30px;top:auto;margin-top:2px;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;border-radius:6px;color:var(--muted);opacity:0;text-decoration:none}
.prose h2 .anchor{margin-top:2px}
.prose h2:hover .anchor,.prose h3:hover .anchor,.anchor:focus-visible{opacity:1}
.anchor:hover{color:var(--title);background:var(--hover)}
.anchor svg{width:16px;height:16px}
.prose p{margin:0 0 16px;text-wrap:pretty}
.prose .lede{font-size:19.5px;line-height:1.6;color:var(--body)}
.prose strong{font-weight:650;color:var(--title)}
.prose em{font-style:italic}
.prose a{color:var(--title);text-decoration:underline;text-decoration-color:var(--line-menu);text-decoration-thickness:1px;text-underline-offset:3px}
.prose a:hover{text-decoration-color:var(--accent)}
.prose code{font-family:var(--mono);font-size:.84em;padding:.14em .4em;border-radius:5px;background:var(--sunken);border:1px solid var(--line-row);color:var(--title);word-break:break-word}
:root[data-theme="dark"] .prose code{background:#1F1F1F;border-color:#2A2A2A}
.prose ul{margin:0 0 18px;padding-left:22px}
.prose ul li{margin:0 0 8px;padding-left:4px}
.prose ul li::marker{color:var(--muted)}
/* Steps: every ordered list */
.prose ol{list-style:none;counter-reset:step;margin:4px 0 22px;padding:0}
.prose ol>li{counter-increment:step;position:relative;padding:0 0 18px 48px;margin:0}
.prose ol>li::before{content:counter(step);position:absolute;left:0;top:1px;width:30px;height:30px;border-radius:50%;border:1px solid var(--line-menu);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;letter-spacing:-.02em;color:var(--title);background:var(--ground);z-index:1}
.prose ol>li:not(:last-child)::after{content:"";position:absolute;left:15px;top:32px;bottom:2px;width:1px;background:var(--line-tab)}
/* Figures */
.prose figure{margin:28px 0 30px}
.shot{display:block;width:100%;padding:0;border:0;background:var(--sunken);border-radius:12px;overflow:hidden;cursor:zoom-in;box-shadow:0 0 0 1px var(--line-tab);position:relative}
.shot img{display:block;width:100%;height:auto;aspect-ratio:16/10}
.shot .zoom{position:absolute;right:10px;bottom:10px;width:32px;height:32px;border-radius:8px;background:rgba(20,20,20,.72);color:#FFF8EC;display:flex;align-items:center;justify-content:center;opacity:0}
.shot:hover .zoom,.shot:focus-visible .zoom{opacity:1}
figure.phone .shot{display:flex;justify-content:center;padding:28px 0}
figure.phone .shot img{width:auto;height:420px;aspect-ratio:780/1688;border-radius:18px;box-shadow:0 0 0 1px var(--line-menu)}
.prose figcaption{margin-top:10px;font-size:14px;line-height:1.5;font-style:italic;color:var(--muted)}
/* Tables */
.table{position:relative;margin:20px 0 26px;border:1px solid var(--line-tab);border-radius:10px;overflow-x:auto;overscroll-behavior-x:contain;background:var(--raised)}
.table table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.5}
.table th{text-align:left;font-weight:600;color:var(--title);background:var(--sunken);padding:10px 14px;border-bottom:1px solid var(--line-tab);white-space:nowrap}
:root[data-theme="dark"] .table th{background:#171717}
.table td{padding:10px 14px;border-top:1px solid var(--line-row);vertical-align:top}
.table tr:first-child td{border-top:0}
.table td:first-child{color:var(--title);font-weight:500;white-space:nowrap}
.table.wide table{min-width:720px}
.table-hint{display:none;font-size:13px;color:var(--muted);margin:-18px 0 22px}
/* Cards (Welcome) */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:14px;margin:18px 0 28px}
.card{position:relative;display:flex;flex-direction:column;gap:8px;padding:20px 20px 18px;border:1px solid var(--line-tab);border-radius:12px;background:var(--raised);text-decoration:none!important;overflow:hidden}
.card::before{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--accent)}
@media (prefers-reduced-motion:no-preference){.card::before{transition:width .35s cubic-bezier(.2,.7,.2,1)}}
.card:hover{border-color:var(--line-menu)}
.card:hover::before{width:100%}
.card b{font-weight:800;font-size:19px;letter-spacing:-.025em;color:var(--title);line-height:1.2}
.card span{font-size:15.5px;line-height:1.5;color:var(--body)}
.card i{margin-top:auto;padding-top:10px;font-style:normal;font-size:14px;color:var(--muted);display:flex;align-items:center;gap:6px}
.card:hover i{color:var(--title)}
/* Callout (proposed) */
.prose blockquote{margin:22px 0;padding:14px 18px;border:1px solid var(--line-tab);border-left:3px solid var(--title);border-radius:8px;background:var(--raised)}
.prose blockquote p{margin:0}
/* Code block (component sheet only) */
.prose pre{margin:0;padding:14px 16px;border-radius:10px;background:var(--sunken);border:1px solid var(--line-row);overflow-x:auto;font:13px/1.6 var(--mono);color:var(--body);white-space:pre}
:root[data-theme="dark"] .prose pre{background:#0F0F0F}
.prose pre code{background:none;border:0;padding:0;font-size:inherit;color:inherit}
.example{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:24px;align-items:start;padding:22px 0;border-top:1px solid var(--line-row)}
.example pre{white-space:pre-wrap;word-break:break-word}
.example .label{grid-column:1/-1;font-size:13px;font-weight:600;color:var(--muted);margin:0}
.example .out>*:first-child{margin-top:0}
.example .out>*:last-child{margin-bottom:0}
.example .out h1{font-size:40px}
.example .out h2{margin-top:0}

/* Foot of article */
.meta{margin:48px 0 0;padding-top:20px;border-top:1px solid var(--line-row);font-size:14px;color:var(--muted)}
.pager{margin:28px 0 0;display:flex;flex-direction:column;gap:18px}
.pager .next{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding:22px 0 26px;border-top:2px solid var(--title);border-bottom:1px solid var(--line-row);text-decoration:none;color:var(--title)}
.pager .next small{display:flex;align-items:center;font-size:14px;font-weight:600;color:var(--muted);margin-bottom:10px}
.pager .next b{display:block;font-weight:800;font-size:clamp(24px,3vw,34px);line-height:1.05;letter-spacing:-.035em}
.pager .next svg{width:30px;height:30px;flex:none;margin-bottom:4px}
.pager .next:hover svg{color:var(--accent)}
.pager .prev{align-self:flex-start;font-size:14.5px;color:var(--muted);text-decoration:none;display:inline-flex;gap:8px;align-items:center}
.pager .prev:hover{color:var(--title)}
.pager .prev svg{width:15px;height:15px;transform:scaleX(-1)}
.foot{max-width:var(--wide);margin:56px auto 0;padding-top:20px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13.5px;color:var(--muted)}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--title)}
.tally{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--red-dot);margin-right:8px;vertical-align:.1em}

/* 404 */
.nf{padding:clamp(40px,10vh,120px) 0 40px;max-width:560px}
.nf .slate{font-family:var(--mono);font-size:13px;color:var(--muted);margin-bottom:22px;display:flex;align-items:center}
.nf h1{font-weight:800;font-size:clamp(40px,6vw,64px);letter-spacing:-.04em;line-height:1;color:var(--title);margin:0 0 16px}
.nf p{font-size:18px;margin:0 0 28px}
.nf .row{display:flex;flex-wrap:wrap;gap:10px}
.btn{height:44px;padding:0 18px;border-radius:9px;display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:600;font-size:15.5px;border:1px solid var(--line-menu);background:transparent;color:var(--title);cursor:pointer}
.btn:hover{border-color:var(--title)}
.btn.solid{background:var(--title);color:var(--ground);border-color:var(--title)}
.btn.solid:hover{opacity:.88}

/* ===== Search palette ===== */
.overlay{position:fixed;inset:0;z-index:50;background:var(--scrim);display:none}
.overlay.open{display:block}
.palette{position:absolute;left:50%;top:max(10vh,72px);transform:translateX(-50%);width:min(680px,calc(100vw - 32px));max-height:min(620px,78vh);display:flex;flex-direction:column;background:var(--raised);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}
:root[data-theme="dark"] .palette{background:#1A1A1A}
.pal-in{display:flex;align-items:center;gap:12px;padding:0 16px;height:58px;border-bottom:1px solid var(--line-dialog);flex:none}
.pal-in input{flex:1;min-width:0;height:100%;border:0;outline:0;background:transparent;font:400 18px var(--font);color:var(--title)}
.pal-in input::placeholder{color:var(--muted)}
.pal-in input::-webkit-search-cancel-button{-webkit-appearance:none;display:none}
.pal-in .esc{font-family:var(--mono);font-size:12px;color:var(--muted);border:0;background:none;cursor:pointer;padding:6px}
.pal-body{overflow:auto;padding:8px 8px 10px;flex:1}
.pal-answer:empty{display:none}
.pal-group{margin:4px 0 6px}
.pal-label{font-size:13px;color:var(--muted);padding:10px 12px 6px}
.res{display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border-radius:8px;text-decoration:none;color:var(--body);cursor:pointer}
.res .ic{flex:none;width:22px;height:22px;border-radius:6px;display:flex;align-items:center;justify-content:center;color:var(--muted);margin-top:1px}
.res .tx{min-width:0;flex:1}
.res .t{display:block;color:var(--title);font-size:15.5px;font-weight:500;line-height:1.35}
.res .s{display:block;font-size:14px;line-height:1.45;color:var(--muted);margin-top:2px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.res.sub{padding-left:46px}
.res.sub .ic{display:none}
.res .go{flex:none;opacity:0;color:var(--muted);font-family:var(--mono);font-size:12px;margin-top:3px}
.res[aria-selected="true"]{background:var(--hover)}
:root[data-theme="dark"] .res[aria-selected="true"]{background:#242424}
.res[aria-selected="true"] .go{opacity:1}
mark{background:none;color:var(--accent);font-weight:650}
.res[aria-selected="true"] mark{color:var(--accent-hover)}
.pal-empty{padding:28px 20px 30px;text-align:left}
.pal-empty b{display:block;color:var(--title);font-weight:700;font-size:17px;margin-bottom:6px}
.pal-empty p{margin:0 0 14px;font-size:15px;color:var(--muted)}
.pal-foot{flex:none;display:flex;gap:18px;align-items:center;padding:10px 16px;border-top:1px solid var(--line-dialog);font-size:13px;color:var(--muted)}
.pal-foot kbd{font-size:11px;margin-right:4px}

/* ===== Lightbox ===== */
.lb{position:fixed;inset:0;z-index:60;background:rgba(10,10,10,.97);display:none;flex-direction:column}
.lb.open{display:flex}
.lb-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;color:#D9D2C5;font-size:14px}
.lb-top .iconbtn{color:#FFF8EC}
.lb-top .iconbtn:hover{background:#242424}
.lb-stage{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;gap:12px;padding:0 16px}
.lb-stage img{max-width:min(100%,1600px);max-height:100%;width:auto;height:auto;border-radius:10px;box-shadow:0 0 0 1px #2A2A2A}
.lb-nav{flex:none}
.lb-cap{padding:14px 16px 22px;text-align:center;font-style:italic;font-size:15px;color:#A8A196}
.lb :focus-visible{outline-color:#FFF8EC}

/* ===== Phone tree sheet ===== */
.sheet-wrap{position:fixed;inset:0;z-index:40;background:var(--scrim);display:none}
.sheet-wrap.open{display:block}
.sheet{position:absolute;left:0;right:0;top:0;max-height:88vh;background:var(--ground);border-radius:0 0 18px 18px;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.sheet-head{display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 10px 0 16px;border-bottom:1px solid var(--line-row);flex:none}
.sheet .tree{position:static;height:auto;border:0;padding:16px 12px 8px;overflow:auto;flex:1}
.sheet-foot{flex:none;display:flex;gap:8px;flex-wrap:wrap;padding:12px 16px 18px;border-top:1px solid var(--line-row)}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .shell{grid-template-columns:240px minmax(0,1fr)}
  :root{--tree:240px}
  .rail{display:none}
  .otp{display:block}
  .searchbtn{flex-basis:280px}
}
@media (max-width:767px){
  :root{--topbar:56px}
  body{font-size:16.5px}
  .top{padding:0 6px 0 4px;gap:4px}
  .menu-btn,.search-icon{display:inline-flex}
  .lockup{width:108px;height:21px}
  .sitename{font-size:15px;padding-left:10px}
  .brand{gap:10px;margin-left:2px}
  .searchbtn,.topnav .toplink{display:none}
  .topnav{gap:0}
  .shell{display:block}
  .shell>.tree{display:none}
  .main{padding:22px 16px 56px}
  .prose h1{font-size:34px}
  .prose h2{margin-top:44px;padding-top:22px}
  .anchor{display:none}
  .prose .lede{font-size:17.5px}
  figure.phone .shot img{height:380px}
  .table-hint{display:block}
  .example{grid-template-columns:1fr}
  .palette{top:0;left:0;transform:none;width:100%;max-height:100%;height:100%;border-radius:0}
  .pal-foot{display:none}
  .lb-nav{display:none}
}