/* ==========================================================================
   Undersign — Developer docs shell
   Layout + content primitives for the docs-style sections (api, docs, guides,
   blog). Structure follows templates/documentation_template.html; every value
   is drawn from the tokens in base.css for site-wide coherence.
   Load base.css first, then this file.
   ========================================================================== */

body{font-size:15px;line-height:1.65;}

/* ============ TOP BAR ============ */
.docs-topbar{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;gap:20px;
  height:64px;padding:0 28px;
  background:rgba(242,250,247,0.88);
  backdrop-filter:blur(14px) saturate(1.4);
  border-bottom:1px solid var(--line);
}
.docs-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16.5px;color:var(--teal-900);margin-right:4px;text-decoration:none;}
.docs-brand img{width:150px;height:auto;max-width:100%;display:block;}
.docs-top-nav{display:flex;align-items:center;gap:4px;}
.docs-top-nav a{padding:8px 12px;border-radius:8px;font-size:13.5px;font-weight:500;color:var(--ink-soft);text-decoration:none;transition:background .25s var(--silk),color .25s var(--silk);}
.docs-top-nav a:hover{background:var(--seafoam-100);color:var(--teal-800);}
.docs-top-nav a.active{color:var(--teal-700);background:var(--seafoam-100);font-weight:600;}
.docs-top-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.search-box{display:flex;align-items:center;gap:8px;width:230px;padding:8px 12px;border-radius:9px;background:var(--seafoam-100);border:1px solid var(--line);color:var(--ink-faint);font-size:13px;cursor:pointer;transition:border-color .25s var(--silk),box-shadow .25s var(--silk);}
.search-box input{flex:1;min-width:0;border:none;outline:none;background:transparent;color:var(--ink);font-family:var(--font-body);font-size:13px;}
.search-box svg{width:14px;height:14px;flex-shrink:0;color:var(--ink-faint);}
.search-box:focus-within{border-color:var(--teal-500);box-shadow:0 0 0 3px rgba(95,194,172,0.14);}

/* mobile docs drawer trigger (hidden on desktop, shown <=860px below) */
.docs-hamburger{display:none;align-items:center;justify-content:center;width:38px;height:38px;flex-shrink:0;border:1px solid var(--line);border-radius:9px;background:var(--white);color:var(--teal-900);cursor:pointer;}
.docs-hamburger svg{width:18px;height:18px;}
.kbd{margin-left:auto;font-family:var(--font-mono);font-size:10.5px;background:var(--white);border:1px solid var(--line-strong);border-radius:5px;padding:1.5px 5px;color:var(--ink-faint);flex-shrink:0;}
.version-pill{display:flex;align-items:center;gap:5px;font-size:12.5px;font-weight:600;color:var(--teal-700);background:var(--seafoam-100);border:1px solid var(--seafoam-200);padding:6px 10px;border-radius:20px;cursor:pointer;white-space:nowrap;}
.version-pill svg{display:none;} /* chevron hidden for now; kept in markup for future use */
.docs-top-actions .btn-primary{background:var(--teal-700);color:var(--white);font-weight:600;font-size:13px;padding:9px 16px;border-radius:9px;box-shadow:0 1px 2px rgba(11,54,48,0.06);transition:background .25s var(--silk),transform .25s var(--silk);}
.docs-top-actions .btn-primary:hover{background:var(--teal-800);transform:translateY(-1px);color:var(--white);}
.to-site{margin-left:4px;font-size:13px;font-weight:600;color:var(--teal-700);text-decoration:underline;text-underline-offset:3px;white-space:nowrap;}
.to-site:hover{color:var(--teal-800);}

/* ============ LAYOUT ============ */
.doc-shell{display:grid;grid-template-columns:260px minmax(0,1fr) 250px;max-width:1440px;margin:0 auto;align-items:start;}

/* ============ SIDEBAR ============ */
.doc-sidebar{position:sticky;top:64px;height:calc(100vh - 64px);overflow-y:auto;padding:26px 14px 40px 24px;border-right:1px solid var(--line);background:var(--seafoam-50);z-index:1;}
.doc-sidebar::-webkit-scrollbar{width:6px;}
.doc-sidebar::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:10px;}
.side-group{margin-bottom:4px;}
.side-group-label{display:flex;align-items:center;justify-content:space-between;padding:9px 10px;border-radius:8px;cursor:pointer;font-size:13px;font-weight:600;color:var(--teal-900);user-select:none;transition:background .2s var(--silk);}
.side-group-label:hover{background:var(--seafoam-100);}
.side-group-label .side-chev{width:14px;height:14px;color:var(--ink-faint);transition:transform .3s var(--silk);}
.side-group.open > .side-group-label .side-chev{transform:rotate(90deg);}
.side-links{display:grid;gap:1px;max-height:0;overflow:hidden;transition:max-height .35s var(--silk);padding-left:10px;border-left:1px solid var(--line);margin-left:14px;}
.side-group.open > .side-links{max-height:900px;}
.side-links a{display:flex;align-items:center;gap:8px;padding:7px 12px;margin:1px 0;border-radius:0 7px 7px 0;font-size:13.2px;color:var(--ink-soft);text-decoration:none;border-left:2px solid transparent;margin-left:-1px;transition:background .2s var(--silk),color .2s var(--silk),border-color .2s var(--silk);}
.side-links a:hover{color:var(--teal-800);background:var(--seafoam-100);}
.side-links a.active{color:var(--teal-700);font-weight:600;background:var(--seafoam-100);border-left:2px solid var(--teal-600);}
.method-tag{font-family:var(--font-mono);font-size:9.5px;font-weight:700;padding:1.5px 5px;border-radius:4px;letter-spacing:.02em;flex-shrink:0;}
.m-get{background:var(--seafoam-100);color:var(--teal-700);}
.m-post{background:var(--blue-bg);color:var(--blue);}
.m-delete{background:var(--coral-bg);color:var(--coral);}
.m-patch{background:var(--amber-bg);color:var(--amber);}
.side-top-links{display:grid;gap:1px;margin-bottom:18px;}
.side-top-links a{display:block;padding:7px 12px;border-radius:7px;font-size:13.2px;font-weight:500;color:var(--ink-soft);text-decoration:none;transition:background .2s var(--silk),color .2s var(--silk);}
.side-top-links a:hover{background:var(--seafoam-100);color:var(--teal-800);}
.side-top-links a.active{color:var(--teal-700);font-weight:700;background:var(--seafoam-100);}

/* ============ MAIN CONTENT ============ */
.doc-main{padding:40px 56px 100px;max-width:820px;min-width:0;}
.doc-main .crumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:12.5px;color:var(--ink-faint);margin-bottom:22px;}
.doc-main .crumb a{color:var(--ink-faint);text-decoration:none;}
.doc-main .crumb a:hover{color:var(--teal-700);}
.doc-main .crumb svg{width:11px;height:11px;flex-shrink:0;}
.page-eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--teal-600);margin-bottom:12px;background:none;padding:0;border-radius:0;}
.page-eyebrow::before{content:'';width:16px;height:1.5px;background:var(--teal-500);}
.doc-title{font-size:38px;line-height:1.15;letter-spacing:-0.01em;color:var(--ink);margin:0 0 16px;font-weight:500;}
.doc-title em{font-family:var(--font-display);font-style:italic;font-weight:500;color:var(--teal-700);}
.doc-main .lede{font-size:16.5px;color:var(--ink-soft);max-width:640px;margin:0 0 32px;}
.doc-main h2{font-family:var(--font-display);font-weight:500;font-size:22px;color:var(--ink);margin:52px 0 14px;letter-spacing:-.01em;scroll-margin-top:84px;}
.doc-main h3{font-family:var(--font-body);font-weight:600;font-size:16.5px;color:var(--ink);margin:30px 0 10px;scroll-margin-top:84px;}
.doc-main p{color:var(--ink);margin:0 0 16px;}
.doc-main p.muted{color:var(--ink-soft);}
.doc-main a{color:var(--teal-700);}
.doc-main hr.docs-rule{border:none;border-top:1px solid var(--line);margin:48px 0;}
code.inline{font-family:var(--font-mono);font-size:12.5px;background:var(--seafoam-100);border:1px solid var(--line);padding:2px 6px;border-radius:5px;color:var(--teal-800);}

/* base url callout */
.base-url{display:flex;align-items:center;gap:14px;background:var(--white);border:1px solid var(--line-strong);border-radius:12px;padding:14px 16px;margin:0 0 28px;box-shadow:0 1px 2px rgba(11,54,48,0.06);}
.base-url .tag{font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--teal-600);background:var(--seafoam-100);padding:4px 8px;border-radius:6px;flex-shrink:0;}
.base-url code{font-family:var(--font-mono);font-size:13.5px;color:var(--teal-900);flex:1;overflow-x:auto;}
.copy-btn{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--ink-soft);background:var(--seafoam-100);border:1px solid var(--line);padding:6px 10px;border-radius:7px;cursor:pointer;flex-shrink:0;transition:background .2s var(--silk),color .2s var(--silk),border-color .2s var(--silk);}
.copy-btn:hover{background:var(--seafoam-100);color:var(--teal-700);border-color:var(--teal-500);}
.copy-btn svg{width:12px;height:12px;}

/* callout notes */
.callout{display:flex;gap:12px;border-radius:12px;padding:16px 18px;margin:22px 0;border:1px solid;font-size:14px;}
.callout-icon{width:18px;height:18px;flex-shrink:0;margin-top:1px;}
.callout p{margin:0;}
.callout p + p{margin-top:6px;}
.callout a{font-weight:600;text-decoration:underline;text-underline-offset:2px;}
.callout.info{background:var(--seafoam-100);border-color:var(--seafoam-200);color:var(--teal-900);}
.callout.info .callout-icon{color:var(--teal-600);}
.callout.warn{background:var(--amber-bg);border-color:#EAD4A8;color:#6B4A0F;}
.callout.warn .callout-icon{color:var(--amber);}

/* numbered quickstart */
.steps{list-style:none;margin:0 0 28px;padding:0;counter-reset:step;}
.steps li{counter-increment:step;display:flex;gap:16px;padding:18px 0;border-top:1px solid var(--line);}
.steps li:last-child{padding-bottom:0;}
.steps li::before{content:counter(step);flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--teal-800);color:var(--white);font-family:var(--font-mono);font-weight:600;font-size:12.5px;display:flex;align-items:center;justify-content:center;}
.steps h4{margin:2px 0 4px;font-size:14.5px;color:var(--teal-900);font-weight:600;}
.steps p{margin:0;font-size:13.8px;color:var(--ink-soft);}

/* endpoint block */
.endpoint-head{display:flex;align-items:center;gap:10px;margin:34px 0 18px;flex-wrap:wrap;}
.method-badge{font-family:var(--font-mono);font-weight:700;font-size:12.5px;padding:6px 12px;border-radius:7px;letter-spacing:.03em;}
.method-badge.post{background:var(--blue-bg);color:var(--blue);}
.method-badge.get{background:var(--seafoam-100);color:var(--teal-700);}
.method-badge.delete{background:var(--coral-bg);color:var(--coral);}
.method-badge.patch{background:var(--amber-bg);color:var(--amber);}
.endpoint-path{font-family:var(--font-mono);font-size:14.5px;color:var(--teal-900);background:var(--seafoam-100);border:1px solid var(--line);padding:6px 12px;border-radius:7px;overflow-x:auto;}

/* tables */
.doc-table-wrap{overflow-x:auto;margin:0 0 28px;}
.doc-main table{width:100%;border-collapse:collapse;font-size:13.5px;}
.doc-main thead th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);font-weight:700;padding:8px 12px;border-bottom:1px solid var(--line-strong);}
.doc-main tbody td{padding:12px;border-bottom:1px solid var(--line);vertical-align:top;}
.doc-main tbody tr:last-child td{border-bottom:none;}
td.param-name{font-family:var(--font-mono);color:var(--teal-800);font-weight:600;white-space:nowrap;}
.req{display:inline-block;font-size:10px;font-weight:700;color:var(--coral);margin-left:6px;}
.opt{display:inline-block;font-size:10.5px;color:var(--ink-faint);margin-left:6px;}
.type{display:block;font-size:11.5px;color:var(--ink-faint);margin-top:2px;}

/* code panel */
.code-panel{position:relative;background:radial-gradient(120% 140% at 15% -10%,rgba(95,194,172,0.22),transparent 55%),var(--code-bg);border-radius:16px;overflow:hidden;margin:0 0 28px;box-shadow:0 24px 60px rgba(11,54,48,0.14);border:1px solid rgba(255,255,255,0.06);}
.code-tabs{display:flex;align-items:center;gap:2px;padding:10px 14px 0;border-bottom:1px solid rgba(255,255,255,0.08);overflow-x:auto;}
.code-tabs button{font-family:var(--font-mono);font-size:12px;font-weight:500;color:var(--code-muted);background:transparent;border:none;padding:9px 14px;cursor:pointer;position:relative;transition:color .2s var(--silk);white-space:nowrap;}
.code-tabs button.active{color:var(--white);}
.code-tabs button.active::after{content:'';position:absolute;left:14px;right:14px;bottom:-1px;height:2px;background:var(--teal-500);border-radius:2px 2px 0 0;}
.code-tabs .spacer{flex:1;}
.code-copy{display:flex;align-items:center;gap:6px;font-family:var(--font-body);font-size:11.5px;color:var(--code-muted);background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.1);padding:6px 10px;border-radius:7px;cursor:pointer;margin:6px 6px 6px 0;transition:background .2s var(--silk),color .2s var(--silk);}
.code-copy:hover{background:rgba(255,255,255,0.12);color:var(--white);}
.code-copy svg{width:11px;height:11px;}
pre.code-block{margin:0;padding:20px 22px 24px;font-family:var(--font-mono);font-size:12.8px;line-height:1.75;color:var(--code-text);overflow-x:auto;}
.tok-key{color:#8FD9C4;}
.tok-str{color:#F2C88F;}
.tok-com{color:#5C8A80;}
.tok-fn{color:#9BC7F0;}
.tok-num{color:#E7A6D8;}
.tok-atom{color:#C9B8F0;}
.resp-label{display:flex;align-items:center;gap:8px;margin:0 0 12px;font-size:12.5px;font-weight:700;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em;}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--teal-500);}

/* next-step cards */
.next-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0 10px;}
.next-card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:18px;text-decoration:none;transition:transform .3s var(--silk),box-shadow .3s var(--silk),border-color .3s var(--silk);}
.next-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(11,54,48,0.08);border-color:var(--teal-500);}
.next-card .ic{width:32px;height:32px;border-radius:9px;background:var(--seafoam-100);display:flex;align-items:center;justify-content:center;margin-bottom:12px;}
.next-card .ic svg{width:16px;height:16px;color:var(--teal-700);}
.next-card h4{margin:0 0 5px;font-size:14px;color:var(--ink);font-weight:600;}
.next-card p{margin:0;font-size:12.8px;color:var(--ink-soft);}
.next-card:hover h4{color:var(--teal-700);}

/* page footer nav */
.page-footer-nav{display:flex;justify-content:space-between;gap:16px;margin-top:60px;padding-top:24px;border-top:1px solid var(--line);}
.foot-link{flex:1;padding:16px 18px;border:1px solid var(--line);border-radius:12px;text-decoration:none;transition:border-color .25s var(--silk),background .25s var(--silk);}
.foot-link:hover{border-color:var(--teal-500);background:var(--seafoam-100);}
.foot-link.next{text-align:right;}
.foot-link .dir{font-size:11px;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.05em;}
.foot-link .title{font-size:14px;font-weight:600;color:var(--teal-800);margin-top:4px;}

/* ============ RIGHT RAIL ============ */
.doc-rail{position:sticky;top:64px;height:calc(100vh - 64px);overflow-y:auto;padding:40px 24px 40px 0;background:var(--seafoam-50);z-index:1;}
.doc-rail::-webkit-scrollbar{width:6px;}
.doc-rail::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:10px;}
.rail-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-faint);margin-bottom:12px;}
.toc{list-style:none;margin:0 0 32px;padding:0;border-left:1px solid var(--line);}
.toc li a{display:block;padding:6px 0 6px 14px;margin-left:-1px;font-size:13px;color:var(--ink-soft);text-decoration:none;border-left:2px solid transparent;transition:color .2s var(--silk),border-color .2s var(--silk);}
.toc li a:hover{color:var(--teal-700);}
.toc li a.active{color:var(--teal-700);font-weight:600;border-left:2px solid var(--teal-600);}
.toc li.sub a{padding-left:26px;font-size:12.3px;}
.help-card{background:linear-gradient(160deg,var(--teal-800),var(--teal-900));border-radius:12px;padding:20px;color:var(--white);position:relative;overflow:hidden;box-shadow:0 8px 24px rgba(11,54,48,0.08);}
.help-card::after{content:'';position:absolute;inset:-40% -40% auto auto;width:160px;height:160px;background:radial-gradient(circle,rgba(95,194,172,0.35),transparent 70%);}
.help-card h4{margin:0 0 6px;font-size:14.5px;position:relative;}
.help-card p{margin:0 0 14px;font-size:12.5px;color:#BFE0D8;position:relative;}
.help-card a{color:#fff;text-decoration:underline;text-underline-offset:2px;}
.help-card a:hover{color:#fff;opacity:.85;}
.quiet-card{background:linear-gradient(160deg,var(--seafoam-100),var(--seafoam-50));border:1px solid var(--seafoam-200);border-radius:12px;padding:20px;margin-top:12px;box-shadow:0 8px 24px rgba(11,54,48,0.08);}
.quiet-card h4{margin:0 0 6px;font-size:14.5px;font-weight:600;color:var(--ink);}
.quiet-card p{margin:0 0 14px;font-size:12.5px;color:var(--ink-soft);}
.quiet-card a{color:var(--teal-700);font-weight:600;text-decoration:underline;text-underline-offset:2px;transition:color .2s var(--silk);}
.quiet-card a:hover{color:var(--teal-800);}

/* responsive */
@media(max-width:1180px){
  .doc-shell{grid-template-columns:230px minmax(0,1fr);}
  .doc-rail{display:none;}
}
@media(max-width:860px){
  .doc-shell{grid-template-columns:1fr;}
  .doc-sidebar{position:fixed;top:0;left:0;bottom:0;width:min(320px,86vw);height:100vh;height:100dvh;overflow-y:auto;padding:20px 14px 40px;z-index:200;background:var(--seafoam-50);border-right:1px solid var(--line);transform:translateX(-105%);transition:transform .3s var(--silk);box-shadow:none;}
  .doc-sidebar.open{transform:none;box-shadow:0 0 48px rgba(11,54,48,.25);}
  .docs-backdrop{position:fixed;inset:0;z-index:150;background:rgba(11,54,48,.4);}
  .docs-hamburger{display:flex;}
  .doc-main{padding:32px 22px 80px;}
  .docs-top-nav{display:none;}
  .docs-topbar{padding:0 20px;gap:12px;}
  .search-box{width:auto;flex:1;min-width:0;}
  .docs-brand img{width:140px;}
}
@media(max-width:560px){
  .version-pill{display:none;}
  .doc-title{font-size:30px;}
  .next-grid{grid-template-columns:1fr;}
  .page-footer-nav{flex-direction:column;}
  .docs-brand img{width:120px;}
}

/* docs screenshots + placeholders */
.doc-figure{margin:22px 0 28px;}
.doc-figure img{width:100%;height:auto;display:block;border:1px solid var(--line-strong);border-radius:12px;box-shadow:0 1px 2px rgba(11,54,48,0.06);}
.doc-figure figcaption{font-size:13px;color:var(--ink-soft);margin-top:8px;}
.doc-shot-placeholder{border:1.5px dashed var(--line-strong);border-radius:12px;background:var(--seafoam-100);padding:22px 20px;text-align:center;margin:22px 0 28px;}
.doc-shot-placeholder .ph-label{font-family:var(--font-mono);font-size:12px;font-weight:600;color:var(--teal-700);letter-spacing:.02em;display:block;margin-bottom:6px;}
.doc-shot-placeholder .ph-file{font-family:var(--font-mono);font-size:12px;color:var(--teal-900);background:var(--white);border:1px solid var(--line);border-radius:6px;padding:3px 8px;display:inline-block;margin-bottom:8px;}
.doc-shot-placeholder .ph-cap{font-size:13px;color:var(--ink-soft);margin:0;}

/* sidebar search filter */
.side-no-results{padding:10px 12px;font-size:13px;color:var(--ink-soft);}

/* back to top */
.docs-to-top{position:fixed;right:22px;bottom:22px;z-index:120;width:42px;height:42px;border-radius:50%;border:1px solid var(--line-strong);background:var(--white);color:var(--teal-800);cursor:pointer;box-shadow:0 4px 16px rgba(11,54,48,.16);display:none;align-items:center;justify-content:center;}
.docs-to-top svg{width:18px;height:18px;}