/* PhoneBridge docs — same tokens as the site, built for reading.
   Three columns on wide screens, a drawer on small ones, nothing moves unless you ask. */
:root{
  --bg:#0a0a0a;--bg-1:#111;--bg-2:#161616;
  --fg:#f2f2f2;--fg-2:#a3a3a3;--fg-3:#6b6b6b;
  --line:rgba(255,255,255,.1);--line-2:rgba(255,255,255,.18);
  --live:#3ddc84;--no:#ff5f56;--warn:#ffd166;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.16,1,.3,1);
  --top:56px;--side:252px;--toc:208px;--gut:clamp(20px,4vw,48px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--top) + 24px);color-scheme:dark}
body{background:var(--bg);color:var(--fg);font-family:var(--sans);font-optical-sizing:auto;font-feature-settings:"cv11","cv03","cv04","ss03";font-size:16px;line-height:1.6;letter-spacing:-.005em;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
svg{display:block}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
::selection{background:#fff;color:#000}
:focus-visible{outline:2px solid #fff;outline-offset:3px;border-radius:4px}
html{scrollbar-color:#3a3a3a var(--bg);scrollbar-width:thin}
.skip{position:absolute;left:16px;top:-48px;z-index:60;background:#fff;color:#000;padding:10px 14px;border-radius:999px;font-size:14px}
.skip:focus{top:16px}
kbd{font-family:var(--mono);font-size:11px;color:var(--fg-3);border:1px solid var(--line-2);border-radius:5px;padding:1px 6px;line-height:1.5}

/* top bar */
.top{position:fixed;inset:0 0 auto;height:var(--top);z-index:40;background:rgba(10,10,10,.86);border-bottom:1px solid var(--line);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%)}
.top__in{height:100%;display:flex;align-items:center;gap:18px;padding:0 var(--gut)}
.top__brand{display:flex;align-items:center;gap:9px;font-weight:500;font-size:15px;letter-spacing:-.01em}
.top__docs{color:var(--fg-3);font-weight:400;padding-left:9px;margin-left:1px;border-left:1px solid var(--line-2)}
.top__links{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:14px;color:var(--fg-2)}
.top__links a{transition:color .2s}
.top__links a:hover{color:var(--fg)}
.top__cta{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;background:#fff;color:#000!important;font-weight:500;font-size:13.5px}
.top__cta:hover{background:#ebebeb}
.top__menu{display:none;width:40px;height:40px;border-radius:50%;position:relative;margin-left:-10px}
.top__menu span{position:absolute;left:11px;right:11px;height:1.5px;background:var(--fg);top:16px;transition:transform .4s var(--ease),top .4s var(--ease)}
.top__menu span+span{top:23px}
.menu-open .top__menu span:first-child{top:19.5px;transform:rotate(45deg)}
.menu-open .top__menu span+span{top:19.5px;transform:rotate(-45deg)}

/* layout */
.shell{display:grid;grid-template-columns:var(--side) minmax(0,1fr) var(--toc);gap:0 clamp(28px,4vw,64px);width:min(1320px,100% - 2*var(--gut));margin:var(--top) auto 0;padding-top:40px}
.side{position:sticky;top:calc(var(--top) + 40px);height:calc(100vh - var(--top) - 40px);overflow:auto;padding-right:8px;padding-bottom:40px;scrollbar-width:thin}
.side__search{position:relative;margin-bottom:22px}
.side__search input{width:100%;height:38px;padding:0 40px 0 12px;border-radius:10px;background:var(--bg-1);border:1px solid var(--line);font-size:14px;color:var(--fg);outline:none;transition:border-color .2s}
.side__search input::placeholder{color:var(--fg-3)}
.side__search input:focus{border-color:var(--fg-2)}
.side__search kbd{position:absolute;right:10px;top:50%;transform:translateY(-50%)}
.side__group{margin-bottom:22px}
.side__group[hidden]{display:none}
.side__k{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--fg-3);margin:0 0 8px 10px}
.side__nav a{display:block;padding:6px 10px;border-radius:8px;font-size:14px;color:var(--fg-2);transition:color .15s,background .15s;position:relative}
.side__nav a:hover{color:var(--fg);background:var(--bg-1)}
.side__nav a[aria-current="page"]{color:var(--fg);background:var(--bg-2)}
.side__nav a[aria-current="page"]::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;border-radius:2px;background:var(--live)}
.side__nav a[hidden]{display:none}
.side__empty{font-size:13px;color:var(--fg-3);padding:6px 10px}
.side__foot{margin-top:28px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:var(--fg-3)}
.side__foot a{padding:4px 10px}
.side__foot a:hover{color:var(--fg)}

.toc{position:sticky;top:calc(var(--top) + 40px);align-self:start;max-height:calc(100vh - var(--top) - 40px);overflow:auto;font-size:13px;padding-left:14px;border-left:1px solid var(--line)}
.toc__k{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--fg-3);margin-bottom:10px}
.toc a{display:block;color:var(--fg-3);padding:4px 0;transition:color .15s;position:relative}
.toc a:hover{color:var(--fg)}
.toc a.is-active{color:var(--fg)}
.toc a.is-active::before{content:"";position:absolute;left:-15px;top:7px;bottom:7px;width:1px;background:var(--fg)}
.toc:empty,.toc:has(> span:only-child){visibility:hidden}

/* document */
.doc{min-width:0;max-width:72ch;padding-bottom:80px}
.doc__k{font-family:var(--mono);font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:var(--fg-3);margin-bottom:14px}
.doc__h{font-size:clamp(32px,4vw,46px);font-weight:500;line-height:1.05;letter-spacing:-.035em;text-wrap:balance}
.doc__lede{font-size:clamp(17px,1.3vw,19px);color:var(--fg-2);margin:16px 0 36px;text-wrap:pretty;max-width:58ch}
.doc h2{font-size:24px;font-weight:500;letter-spacing:-.025em;line-height:1.2;margin:48px 0 14px;padding-top:22px;border-top:1px solid var(--line);position:relative}
.doc h3{font-size:17px;font-weight:500;letter-spacing:-.015em;margin:30px 0 10px;position:relative}
.anchor{position:absolute;left:-1.1em;top:0;bottom:0;display:flex;align-items:center;color:var(--fg-3);font-weight:400;opacity:0;transition:opacity .15s;font-size:.85em}
h2 .anchor{top:22px}
h2:hover .anchor,h3:hover .anchor,.anchor:focus-visible{opacity:1}
.doc p{margin:0 0 16px;color:var(--fg);text-wrap:pretty}
.doc p.dim,.doc .dim{color:var(--fg-2)}
.doc a:not(.anchor):not(.pager__a):not(.btn){color:var(--fg);text-decoration:underline;text-decoration-color:var(--line-2);text-underline-offset:3px;transition:text-decoration-color .2s}
.doc a:not(.anchor):not(.pager__a):not(.btn):hover{text-decoration-color:var(--fg)}
.doc ul,.doc ol{margin:0 0 18px;padding-left:22px}
.doc li{margin-bottom:6px}
.doc li::marker{color:var(--fg-3)}
.doc ol.steps{list-style:none;padding:0;counter-reset:s}
.doc ol.steps li{counter-increment:s;position:relative;padding:14px 0 14px 52px;border-top:1px solid var(--line);margin:0}
.doc ol.steps li:last-child{border-bottom:1px solid var(--line)}
.doc ol.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:16px;font-family:var(--mono);font-size:12px;color:var(--fg-3)}
.doc ol.steps b{display:block;font-weight:500;margin-bottom:2px}
.doc code{font-family:var(--mono);font-size:.86em;background:var(--bg-2);border:1px solid var(--line);border-radius:5px;padding:1px 5px;overflow-wrap:anywhere}
.doc pre{position:relative;margin:0 0 20px;background:var(--bg-1);border:1px solid var(--line);border-radius:12px;padding:14px 16px;overflow:auto;font-family:var(--mono);font-size:13.5px;line-height:1.6;scrollbar-width:thin}
.doc pre code{background:none;border:0;padding:0;font-size:inherit;white-space:pre}
.doc pre[data-lang]::before{content:attr(data-lang);position:absolute;right:52px;top:9px;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--fg-3)}
.copy{position:absolute;right:8px;top:8px;height:26px;padding:0 9px;border-radius:7px;font-family:var(--sans);font-size:12px;color:var(--fg-2);background:var(--bg-2);border:1px solid var(--line);opacity:0;transition:opacity .15s,color .15s}
pre:hover .copy,.copy:focus-visible,.copy.is-done{opacity:1}
.copy.is-done{color:var(--live);border-color:rgba(61,220,132,.4)}
.doc table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:14.5px}
.doc th{font-weight:500;text-align:left;color:var(--fg-2);font-size:12px;letter-spacing:.04em;text-transform:uppercase;font-family:var(--mono);padding:0 12px 10px 0;border-bottom:1px solid var(--line-2)}
.doc td{padding:10px 12px 10px 0;border-bottom:1px solid var(--line);vertical-align:top}
.doc td:last-child,.doc th:last-child{padding-right:0}
.doc .tbl{overflow:auto;margin:0 0 22px;scrollbar-width:thin}
.doc .tbl table{margin:0;min-width:520px}
.note{display:grid;grid-template-columns:auto 1fr;gap:12px;margin:0 0 20px;padding:14px 16px;border-radius:12px;background:var(--bg-1);border:1px solid var(--line)}
.note::before{content:"";width:2px;border-radius:2px;background:var(--fg-2)}
.note--warn::before{background:var(--warn)}
.note--ok::before{background:var(--live)}
.note--no::before{background:var(--no)}
.note p{margin:0 0 6px;font-size:14.5px}
.note p:last-child{margin:0}
.note b{font-weight:500}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:0 0 24px}
.card{display:block;padding:16px;border-radius:14px;background:var(--bg-1);border:1px solid var(--line);transition:border-color .2s,transform .3s var(--ease)}
a.card{text-decoration:none!important}
a.card:hover{border-color:var(--line-2);transform:translateY(-1px)}
.card b{display:block;font-weight:500;margin-bottom:4px}
.card span{display:block;font-size:14px;color:var(--fg-2)}
.card .card__k{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--fg-3);margin-bottom:8px}
.kv{display:grid;grid-template-columns:max-content 1fr;gap:8px 22px;font-size:14.5px;margin:0 0 22px}
.kv dt{font-family:var(--mono);font-size:13px;color:var(--fg-2)}
.kv dd{color:var(--fg);min-width:0}
.btn{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;border-radius:999px;background:#fff;color:#000;font-weight:500;font-size:14.5px;letter-spacing:-.01em;transition:background .25s,transform .25s var(--ease);margin:4px 12px 20px 0}
.btn:hover{background:#ebebeb}
.btn:active{transform:scale(.98)}
.btn--tonal{background:var(--bg-2);color:var(--fg);border:1px solid var(--line-2)}
.btn--tonal:hover{background:var(--bg-2);border-color:var(--fg-2)}
.pill{display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:var(--fg-2);border:1px solid var(--line-2);border-radius:999px;padding:2px 8px;vertical-align:middle;margin-left:6px}
.pill--live{color:var(--live);border-color:rgba(61,220,132,.4)}
.pill--no{color:var(--no);border-color:rgba(255,95,86,.4)}
.pill--warn{color:var(--warn);border-color:rgba(255,209,102,.4)}
.tool{margin:0 0 10px;padding:16px 18px;border-radius:14px;background:var(--bg-1);border:1px solid var(--line)}
.tool h3{margin:0 0 8px;font-family:var(--mono);font-weight:500;font-size:15px;letter-spacing:0}
.tool h3 .anchor{left:-1.3em}
.tool p{font-size:14.5px;margin-bottom:8px}
.tool p:last-child{margin:0}
.tool .kv{margin:8px 0 0;font-size:14px}
.tool .kv dt{font-size:12px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:56px}
.pager__a{display:flex;flex-direction:column;gap:3px;padding:16px 18px;border-radius:14px;border:1px solid var(--line);background:var(--bg-1);transition:border-color .2s}
.pager__a:hover{border-color:var(--line-2)}
.pager__a small{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--fg-3)}
.pager__a span{font-weight:500;font-size:15px}
.pager__a--next{text-align:right;align-items:flex-end}
.doc__foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:48px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--fg-3)}
.doc__foot a{color:var(--fg-3)!important;text-decoration:none!important}
.doc__foot a:hover{color:var(--fg)!important}

/* responsive */
@media (max-width:1180px){.shell{grid-template-columns:var(--side) minmax(0,1fr)}.toc{display:none}}
@media (max-width:900px){
  .shell{grid-template-columns:minmax(0,1fr);padding-top:28px}
  .top__menu{display:block}
  .top__links a:not(.top__cta){display:none}
  .side{position:fixed;inset:var(--top) 0 0 0;height:auto;z-index:39;background:var(--bg);padding:20px var(--gut) 40px;transform:translateX(-100%);transition:transform .4s var(--ease);visibility:hidden}
  .menu-open .side{transform:none;visibility:visible}
  .menu-open{overflow:hidden}
  .doc h2{margin-top:40px}
  .pager{grid-template-columns:1fr}
  .pager__a--next{text-align:left;align-items:flex-start}
  .anchor{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
@media print{.top,.side,.toc,.pager,.copy,.skip{display:none!important}.shell{display:block;margin:0;width:auto}body{background:#fff;color:#000}.doc pre,.doc code,.note,.card,.tool{background:#f4f4f4;color:#000;border-color:#ccc}}