/* ==========================================================================
   BI Adlytics — seller guides
   Long-form guide layout for /academy/guides/*. Loaded after v2.css on
   <body class="v2 guide-page">. Sticky "On this page" sidebar with numbered
   chapters, chapter overview grid, and one section per chapter.
   ========================================================================== */
body.v2.guide-page{background:var(--bg)}
html{scroll-padding-top:96px}

.guide{display:grid;grid-template-columns:268px minmax(0,1fr);gap:56px;max-width:1180px;margin:0 auto;padding:28px 24px 96px;transition:grid-template-columns .25s ease}
.guide.collapsed{grid-template-columns:64px minmax(0,1fr)}

/* ---- sidebar ---- */
.gside{position:sticky;top:96px;align-self:start;max-height:calc(100vh - 116px);overflow:auto;border:1px solid var(--line);border-radius:14px;background:var(--bg2);padding:16px 14px 18px;scrollbar-width:thin}
.gside-top{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 4px 14px;border-bottom:1px solid var(--line)}
.gside-back{font-size:13px;font-weight:600;color:var(--mut)}
.gside-back:hover{color:var(--acc)}
.gside-toggle{width:30px;height:30px;flex:none;border-radius:8px;border:1px solid var(--line2);background:#fff;color:var(--mut);font:600 15px/1 var(--f-mono);cursor:pointer}
.gside-toggle:hover{color:var(--acc);border-color:var(--acc)}
.gside-label{font-family:var(--f-mono);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);padding:16px 4px 8px}
.gtoc{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.gtoc a{display:flex;align-items:center;gap:10px;padding:8px 8px;border-radius:9px;font-size:14px;font-weight:500;line-height:1.3;color:var(--mut);transition:background .15s ease,color .15s ease}
.gtoc a:hover{background:#fff;color:var(--txt)}
.gtoc .n{flex:none;width:24px;height:24px;border-radius:7px;display:grid;place-items:center;background:#fff;border:1px solid var(--line2);font:600 11px/1 var(--f-mono);color:var(--dim)}
.gtoc a.on{background:#fff;color:var(--txt);font-weight:600;box-shadow:var(--shadow-sm)}
.gtoc a.on .n{background:var(--acc);border-color:var(--acc);color:#fff}

.guide.collapsed .gside{padding:12px 8px}
.guide.collapsed .gside-top{justify-content:center;padding:0 0 12px}
.guide.collapsed .gside-back,.guide.collapsed .gside-label,.guide.collapsed .gtoc .t{display:none}
.guide.collapsed .gtoc a{justify-content:center;padding:6px 0}
.guide.collapsed .gside-toggle{transform:scaleX(-1)}

/* ---- guide header ---- */
.ghead{padding:8px 0 36px;border-bottom:1px solid var(--line)}
.ghead .crumbs{padding:0 0 22px}
.ghead h1{font-size:clamp(36px,4.6vw,56px);margin:14px 0 0;max-width:15ch}
.ghead .lead{font-size:20px;line-height:1.6;color:var(--mut);max-width:62ch;margin:20px 0 0}
.gmeta{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:22px;font-family:var(--f-mono);font-size:12px;color:var(--dim);letter-spacing:.02em}
.gmeta b{color:var(--txt);font-weight:600}

/* ---- chapter overview grid ---- */
.gover{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:36px 0 8px}
.gover a{display:block;border:1px solid var(--line);border-radius:12px;padding:16px 16px 18px;background:#fff;transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease}
.gover a:hover{border-color:var(--acc);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.gover .n{font:600 12px/1 var(--f-mono);color:var(--acc);letter-spacing:.06em}
.gover b{display:block;margin-top:10px;font-family:var(--f-display);font-size:16px;line-height:1.3;letter-spacing:-.01em;color:var(--txt)}

/* ---- chapters ---- */
.gsec{padding:64px 0 8px;max-width:720px}
.gsec h2{font-size:clamp(28px,3.2vw,40px);margin:10px 0 0}
.gsec h2::after{content:"";display:block;width:56px;height:4px;border-radius:4px;background:var(--acc);margin-top:20px}
.gsec h3{font-size:21px;margin:36px 0 0}
.gsec p,.gsec li{font-size:18px;line-height:1.75;color:#2f3550}
.gsec p{margin:20px 0 0}
.gsec ul,.gsec ol{margin:16px 0 0;padding-left:24px}
.gsec li{margin:8px 0 0;padding-left:4px}
.gsec li::marker{color:var(--acc);font-weight:600}
.gsec strong{color:var(--txt);font-weight:600}
.gsec a:not(.btn){color:var(--acc);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}

.gnote{margin:28px 0 0;padding:18px 22px;border-left:3px solid var(--acc);background:var(--acc-soft);border-radius:0 12px 12px 0}
.gnote b{display:block;font-family:var(--f-mono);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--acc-ink);margin-bottom:6px}
.gnote p{margin:0;font-size:16px;line-height:1.65}
.gnote.warn{border-left-color:var(--warn);background:#fdf6ea}
.gnote.warn b{color:var(--warn)}

.gformula{margin:24px 0 0;padding:18px 22px;border:1px solid var(--line2);border-radius:12px;background:var(--bg2);font:500 15px/1.7 var(--f-mono);color:var(--txt);overflow-x:auto}

.gtable-wrap{margin:24px 0 0;border:1px solid var(--line2);border-radius:12px;overflow-x:auto;background:#fff}
.gtable{width:100%;border-collapse:collapse;font-size:15px;line-height:1.5}
.gtable th{text-align:left;font:600 11px/1.3 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--dim);background:var(--bg2);padding:12px 16px;border-bottom:1px solid var(--line2);white-space:nowrap}
.gtable td{padding:12px 16px;border-bottom:1px solid var(--line);color:#2f3550;vertical-align:top}
.gtable tr:last-child td{border-bottom:none}
.gtable td:first-child{font-weight:600;color:var(--txt);white-space:nowrap}
.gtable td.num{font-family:var(--f-mono);font-size:14px;white-space:nowrap;text-align:right}
.gtable th.num{text-align:right}
.gtable .hi{background:#eaf7f1}
.gtable .lo{background:#fdf0f1}
.gcap{font-size:13px !important;color:var(--dim) !important;margin-top:10px !important}

.gsteps{list-style:none;padding:0 !important;counter-reset:gs;margin-top:24px !important}
.gsteps li{counter-increment:gs;position:relative;padding:0 0 0 52px !important;margin:22px 0 0 !important}
.gsteps li::before{content:counter(gs,decimal-leading-zero);position:absolute;left:0;top:2px;width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:var(--txt);color:#fff;font:600 12px/1 var(--f-mono)}

.gcheck{list-style:none;padding:0 !important;margin-top:20px !important;border:1px solid var(--line2);border-radius:12px;overflow:hidden}
.gcheck li{margin:0 !important;padding:14px 18px 14px 50px !important;position:relative;border-bottom:1px solid var(--line);font-size:16px !important}
.gcheck li:last-child{border-bottom:none}
.gcheck li::before{content:"";position:absolute;left:18px;top:18px;width:16px;height:16px;border-radius:4px;border:1.5px solid var(--line2);background:#fff}

/* ---- end of guide ---- */
.gnext{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:72px 0 0;max-width:720px}
.gnext a{display:block;border:1px solid var(--line2);border-radius:14px;padding:20px 22px;background:#fff;transition:border-color .15s ease}
.gnext a:hover{border-color:var(--acc)}
.gnext span{font-family:var(--f-mono);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}
.gnext b{display:block;margin-top:8px;font-family:var(--f-display);font-size:18px;line-height:1.3;color:var(--txt)}
.gend{margin:56px 0 0;max-width:720px;padding:32px;border-radius:16px;background:var(--ink);color:#f3f5fc}
.gend h3{font-size:24px;margin:0}
.gend p{color:#b3bad0;margin:12px 0 22px;font-size:16px}
.gend .cta{display:flex;flex-wrap:wrap;gap:10px}
.gend .btn-g{background:transparent;color:#f3f5fc;border-color:rgba(255,255,255,.28);box-shadow:none}

/* ---- academy hub: guide cards ---- */
body.v2 .guides-hub{padding:8px 0 56px;border-bottom:1px solid var(--line)}
.guides-hub .shead{text-align:left;max-width:none;margin:0 0 26px}
.guide-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.guide-card{display:flex;flex-direction:column;border:1px solid var(--line2);border-radius:16px;background:#fff;padding:26px 26px 22px;transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease}
.guide-card:hover{border-color:var(--acc);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.guide-card .gk{display:flex;gap:14px;font-family:var(--f-mono);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--acc)}
.guide-card .gk span+span{color:var(--dim)}
.guide-card h3{font-size:24px;margin:14px 0 0;color:var(--txt)}
.guide-card p{margin:10px 0 0;font-size:16px}
.guide-card ol{margin:18px 0 0;padding:16px 0 0;border-top:1px solid var(--line);list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:6px 16px;counter-reset:gc}
.guide-card ol li{counter-increment:gc;font-size:13px;color:var(--mut);padding-left:28px;position:relative}
.guide-card ol li::before{content:counter(gc,decimal-leading-zero);position:absolute;left:0;font:600 11px/1.8 var(--f-mono);color:var(--dim)}
.guide-card .go{margin-top:auto;padding-top:20px;font-weight:600;font-size:15px;color:var(--acc)}

body.v2 .qa-head{padding:56px 0 8px}
body.v2 .academy-section{padding:44px 0}
.qa-head .shead{text-align:left;max-width:none;margin:0 0 22px}
.qa-head .acad-tools{margin:0;max-width:none;align-items:flex-start}
.qa-head .acad-search{max-width:620px}
.qa-head .cat-pills{justify-content:flex-start}
body.v2 .acad-search input{background:#fff;border-color:var(--line2);box-shadow:var(--shadow-sm)}
body.v2 .cat-pills button{background:#fff;border-color:var(--line2)}
body.v2 .cat-pills button.on{background:var(--acc);border-color:var(--acc);color:#fff}

/* ---- academy hub: left module index ---- */
.acad-layout{display:grid;grid-template-columns:276px minmax(0,1fr);gap:48px;align-items:start;padding-top:8px;padding-bottom:24px}
.acad-main .wrap{max-width:none;padding:0}
.acad-main .lesson-grid{grid-template-columns:repeat(2,1fr)}
body.v2 .acad-main .guides-hub{padding-top:0}
body.v2 .acad-main .academy-section{scroll-margin-top:96px}
.acad-main .lesson{scroll-margin-top:110px}
.acad-main .lesson.flash{border-color:var(--acc);box-shadow:0 0 0 3px var(--acc-soft)}
.acad-side{position:sticky;top:96px;max-height:calc(100vh - 116px);overflow:auto;border:1px solid var(--line);border-radius:14px;background:var(--bg2);padding:14px 12px 16px;scrollbar-width:thin}
.aside-label{display:block;width:100%;text-align:left;background:none;border:none;font-family:var(--f-mono);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);padding:6px 6px 8px;cursor:default}
.aside-label+.aside-guides{margin-bottom:12px}
.aside-guides{list-style:none;margin:0;padding:0 0 12px;border-bottom:1px solid var(--line)}
.aside-guides a{display:block;padding:8px;border-radius:9px;font-size:14px;font-weight:600;color:var(--txt)}
.aside-guides a:hover{background:#fff;color:var(--acc)}
.aside-mtoggle{margin-top:12px}
.amods{display:grid;gap:2px}
.amod-btn{display:flex;align-items:center;gap:10px;width:100%;padding:8px;border:none;border-radius:9px;background:none;cursor:pointer;font:500 14px/1.3 var(--f-body);color:var(--mut);text-align:left;transition:background .15s ease,color .15s ease}
.amod-btn:hover{background:#fff;color:var(--txt)}
.amod-btn .n{flex:none;width:26px;height:24px;border-radius:7px;display:grid;place-items:center;background:#fff;border:1px solid var(--line2);font:600 11px/1 var(--f-mono);color:var(--dim)}
.amod-btn .t{flex:1}
.amod-btn .c{font:500 11px/1 var(--f-mono);color:var(--dim)}
.amod-btn i{flex:none;width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(-45deg);transition:transform .2s ease;margin:0 4px 0 2px}
.amod.open .amod-btn i{transform:rotate(45deg)}
.amod.on .amod-btn{background:#fff;color:var(--txt);font-weight:600;box-shadow:var(--shadow-sm)}
.amod.on .amod-btn .n{background:var(--acc);border-color:var(--acc);color:#fff}
.amod-list{list-style:none;margin:0;padding:0 0 0 22px;display:none}
.amod.open .amod-list{display:block;padding:4px 0 8px 22px}
.amod-list li{border-left:1px solid var(--line2)}
.amod-list li[hidden]{display:none}
.amod-list a{display:block;padding:6px 8px 6px 14px;margin-left:-1px;border-left:2px solid transparent;font-size:13px;line-height:1.4;color:var(--mut)}
.amod-list a:hover{color:var(--acc);border-left-color:var(--acc)}
.amod-list a.on{color:var(--acc);border-left-color:var(--acc);font-weight:600}

/* ---- responsive ---- */
@media (max-width:1080px){.gover{grid-template-columns:repeat(2,1fr)}.acad-main .lesson-grid{grid-template-columns:1fr}}
@media (max-width:960px){
  .guide,.guide.collapsed{grid-template-columns:minmax(0,1fr);gap:0;padding-top:16px}
  .gside{position:relative;top:0;max-height:none;margin-bottom:20px}
  .gside-toggle{display:none}
  .gside-label{cursor:pointer;display:flex;justify-content:space-between}
  .gside-label::after{content:"+";font-size:15px;color:var(--acc)}
  .gside.open .gside-label::after{content:"−"}
  .gside:not(.open) .gtoc{display:none}
  .guide.collapsed .gside-back,.guide.collapsed .gside-label,.guide.collapsed .gtoc .t{display:revert}
  .acad-layout{grid-template-columns:minmax(0,1fr);gap:24px}
  .acad-side{position:relative;top:0;max-height:none}
  .aside-mtoggle{cursor:pointer;display:flex;justify-content:space-between}
  .aside-mtoggle::after{content:"+";font-size:15px;color:var(--acc)}
  .acad-side.mopen .aside-mtoggle::after{content:"\2212"}
  .acad-side:not(.mopen) .amods{display:none}
  .acad-main .lesson-grid{grid-template-columns:1fr}
}
@media (max-width:760px){
  .guide{padding:12px 16px 64px}
  .gover{grid-template-columns:1fr 1fr;gap:10px}
  .gover a{padding:14px}
  .gover b{font-size:14px}
  .ghead .lead{font-size:18px}
  .gsec{padding-top:48px}
  .gsec p,.gsec li{font-size:17px}
  .gnext,.guide-cards{grid-template-columns:1fr}
  .guide-card ol{grid-template-columns:1fr}
  .gend{padding:24px}
}

/* ---- blog posts: guide sidebar around .prose ---- */
.post-layout{padding-top:20px}
.post-layout .prose{margin:0;max-width:720px}
.post-layout .prose h2{scroll-margin-top:96px}
.post-layout .gtoc .t{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
body.v2.blog-page #scrollbar{height:3px}