/* PocketVault Help Center — tema grafite único.
   Tokens reutilizam os valores reais da landing (marketing/styles.css): ink, muted, blue, link-blue,
   button-blue, paper, field, line, focus. Sem modo claro nem alternância de tema. */
:root{
  color-scheme:dark;
  --ink:#f2f5fa;--muted:#c4c6cc;--faint:#9ea2ab;
  --blue:#79b8ff;--link:#9bcaff;--button:#1768c9;--button-hover:#0f55a8;--focus:#9bcaff;
  --bg:#1e2024;--paper:#282a2f;--raised:#2d3036;--field:#222428;--line:#464a52;--line-soft:#363940;
  --accent-soft:#1f2c3d;--warn:#e9c46a;--warn-bg:#33291a;
  --r-s:4px;--r-m:6px;--r-l:8px;
  --s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;--s7:48px;--s8:72px;
  --shadow-1:0 1px 2px #0006;--shadow-2:0 10px 30px #0007;
  --ease:cubic-bezier(.2,.7,.2,1);--t-fast:.14s;--t:.2s;
  --bp-tablet:1100px;--bp-mobile:700px;
  font:16px/1.65 "Segoe UI Variable","Segoe UI",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
a{color:var(--link);text-underline-offset:3px;text-decoration-thickness:1px;transition:color var(--t-fast) var(--ease)}
a:hover{color:#fff}
button,input{font:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:8px;background:var(--paper);color:var(--ink);padding:10px 14px;z-index:30;border-radius:var(--r-m)}
.skip:focus{left:12px}
.preview-banner{background:var(--warn-bg);color:var(--warn);border-bottom:1px solid #5a4a22;text-align:center;padding:6px;font-size:13px;font-weight:650}

/* Navbar */
.topbar{height:64px;display:flex;align-items:center;gap:20px;padding:0 max(24px,calc((100vw - 1600px)/2 + 28px));border-bottom:1px solid var(--line);background:#24262bf2;position:sticky;top:0;z-index:20;backdrop-filter:blur(8px)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-size:16px;font-weight:650;white-space:nowrap}
.brand:hover{color:var(--ink)}
.brand img{width:30px;height:30px;border-radius:var(--r-m)}
.brand small{display:inline-block;margin-left:8px;padding-left:10px;border-left:1px solid var(--line);color:var(--muted);font-size:13px;font-weight:500}
.nav-links{display:flex;gap:4px;margin-left:8px}
.nav-links a{color:var(--muted);text-decoration:none;font-size:14px;padding:6px 10px;border-radius:var(--r-m)}
.nav-links a:hover{background:var(--raised);color:var(--ink)}
.search{position:relative;display:flex;align-items:center;gap:10px;max-width:440px;width:100%;margin-left:auto;border:1px solid var(--line);border-radius:var(--r-m);background:var(--field);padding:0 12px;transition:border-color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease)}
.search:hover{border-color:#5b606a}
.search::before{content:"";width:14px;height:14px;flex:none;background:var(--faint);-webkit-mask:url('/assets/search.svg') center/contain no-repeat;mask:url('/assets/search.svg') center/contain no-repeat}
.search input{width:100%;height:40px;border:0;outline:0;background:transparent;color:var(--ink)}
.search input::placeholder{color:var(--faint)}
.search:focus-within{outline:2px solid var(--focus);outline-offset:1px;border-color:var(--focus);background:var(--bg)}
kbd{border:1px solid var(--line);border-radius:var(--r-s);padding:0 6px;color:var(--faint);font:12px/1.6 ui-monospace,Consolas,monospace;white-space:nowrap}
.menu-button{display:none;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:var(--r-m);padding:7px 11px;cursor:pointer;transition:background-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}
.menu-button:hover{background:var(--raised)}
.menu-button:active{transform:scale(.97)}

/* Layout */
.layout{display:grid;grid-template-columns:268px minmax(0,780px) 232px;gap:56px;max-width:1600px;justify-content:center;margin:0 auto;padding:36px 28px 72px;min-height:calc(100vh - 140px)}
.content{min-width:0}
.sidebar{border-right:1px solid var(--line-soft);padding:0 20px 24px 0;position:sticky;top:88px;align-self:start;max-height:calc(100vh - 104px);overflow:auto;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.home-link,.all-articles{display:block;padding:6px 10px;text-decoration:none;color:var(--ink);font-size:14px;font-weight:650;border-radius:var(--r-m);transition:background-color var(--t-fast) var(--ease)}
.home-link:hover,.all-articles:hover{background:var(--paper);color:var(--ink)}
.all-articles{margin-top:16px;color:var(--link)}
.nav-group{margin-top:14px;border:0}
.nav-group>summary{list-style:none;cursor:pointer;color:var(--faint);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:6px 10px;border-radius:var(--r-m);display:flex;justify-content:space-between;align-items:center;transition:color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease)}
.nav-group>summary::-webkit-details-marker{display:none}
.nav-group>summary::after{content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translate(-2px,-2px);transition:transform var(--t) var(--ease)}
.nav-group:not([open])>summary::after{transform:rotate(-45deg)}
.nav-group>summary:hover{color:var(--ink);background:var(--paper)}
.nav-subgroup h3{font-size:12px;font-weight:650;margin:12px 0 2px 10px;color:var(--muted);letter-spacing:0}
.nav-subgroup a{display:block;padding:5px 10px 5px 12px;margin-left:10px;border-left:1px solid var(--line);text-decoration:none;color:var(--muted);font-size:14px;line-height:1.4;transition:color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.nav-subgroup a:hover{color:var(--ink);background:var(--paper);border-left-color:var(--muted)}
.nav-subgroup a[aria-current=page]{color:var(--ink);background:var(--accent-soft);border-left:2px solid var(--blue);padding-left:11px;font-weight:650}
.muted{color:var(--faint);font-size:13px;padding-left:12px;margin:4px 0 0 10px}
@keyframes navOpen{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.nav-group[open]>.nav-subgroup{animation:navOpen var(--t) var(--ease)}

/* Índice contextual */
.toc{border-left:1px solid var(--line-soft);padding-left:18px;align-self:start;position:sticky;top:88px}
.toc h2{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin:0 0 10px}
.toc nav{display:grid;gap:2px}
.toc a{font-size:13px;line-height:1.4;text-decoration:none;color:var(--muted);padding:4px 0 4px 10px;margin-left:-11px;border-left:2px solid transparent;transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.toc a:hover{color:var(--ink)}
.toc .level-3{padding-left:22px}
.toc a[aria-current=location]{color:var(--ink);font-weight:650;border-left-color:var(--blue)}

/* Tipografia */
.breadcrumbs{display:flex;gap:9px;flex-wrap:wrap;font-size:13px;color:var(--faint);margin-bottom:22px}
.breadcrumbs a{color:var(--muted);text-decoration:none}
.breadcrumbs a:hover{color:var(--ink);text-decoration:underline}
h1,h2,h3{line-height:1.2;letter-spacing:-.02em;font-weight:650}
h1{font-size:clamp(2rem,4vw,2.75rem);margin:.25em 0 .4em}
h2{font-size:1.5rem;margin:2em 0 .65em;padding-top:.3em}
h3{font-size:1.15rem;margin:1.6em 0 .5em}
.eyebrow{color:var(--blue);font-weight:700;font-size:12px;letter-spacing:.09em;text-transform:uppercase}
.lede{font-size:19px;line-height:1.55;color:var(--muted);max-width:68ch}

/* Artigo */
.article-body{margin-top:34px}
.article-body p,.article-body li{max-width:72ch}
.article-body li{margin:.3em 0}
.article-body h2[id]:target,.article-body h3[id]:target{animation:flash 1.6s var(--ease)}
@keyframes flash{from{background:var(--accent-soft)}to{background:transparent}}
.article-body img{max-width:100%;height:auto;border-radius:var(--r-l);border:1px solid var(--line);background:var(--field);cursor:zoom-in;transition:border-color var(--t) var(--ease)}
.article-body img:hover{border-color:var(--blue)}
.article-body pre{overflow:auto;padding:16px;border-radius:var(--r-l);border:1px solid var(--line);background:var(--field);color:var(--ink);line-height:1.5}
.article-body code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.9em}
.article-body :not(pre)>code{background:var(--raised);border:1px solid var(--line-soft);padding:1px 6px;border-radius:var(--r-s)}
.article-body blockquote{margin:24px 0;padding:12px 18px 14px;border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:0 var(--r-l) var(--r-l) 0;background:var(--accent-soft);color:var(--ink)}.article-body blockquote[data-title]::before{content:attr(data-title);display:block;margin-bottom:4px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue)}.article-body .callout-warning,.article-body .callout-draft{background:var(--warn-bg);border-color:#5a4a22;border-left-color:var(--warn)}.article-body blockquote.callout-warning::before,.article-body blockquote.callout-draft::before{color:var(--warn)}
.article-body blockquote>:first-child{margin-top:0}.article-body blockquote>:last-child{margin-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line)}
.article-body table{display:block;overflow-x:auto;border-collapse:collapse;max-width:100%;margin:20px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:8px 12px;text-align:left}
.article-body th{background:var(--raised)}
.article-body td{background:var(--paper)}
.article-actions{display:flex;gap:8px;margin:20px 0;flex-wrap:wrap}
.article-actions button,.button{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);padding:7px 14px;color:var(--ink);cursor:pointer;text-decoration:none;font-size:14px;display:inline-block;transition:background-color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}
.article-actions button:hover,.button:hover{border-color:var(--blue);background:var(--raised);color:var(--ink)}
.article-actions button:active,.button:active{transform:scale(.98)}
.article-actions button.done{border-color:var(--blue);background:var(--accent-soft)}
.button.primary{background:var(--button);border-color:var(--button);color:#fff}
.button.primary:hover{background:var(--button-hover);border-color:var(--button-hover)}
.article-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:34px;padding-top:16px;border-top:1px solid var(--line);color:var(--faint);font-size:13px}
.draft-label{display:inline-block;background:var(--warn-bg);color:var(--warn);border:1px solid #5a4a22;border-radius:var(--r-s);padding:3px 10px;font-size:13px;font-weight:650}
.related{border-top:1px solid var(--line);margin-top:38px;padding-top:10px}
.related h2{font-size:1.1rem}
.related a{display:block;margin:8px 0}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:36px}
.pager a{display:block;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r-l);background:var(--paper);text-decoration:none;color:var(--ink);transition:border-color var(--t) var(--ease),background-color var(--t) var(--ease),transform var(--t) var(--ease)}
.pager a:hover{border-color:var(--blue);background:var(--raised);transform:translateY(-1px)}
.pager small{display:block;color:var(--faint);font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.pager .next{text-align:right;grid-column:2}
.pager .prev{grid-column:1}

/* Home */
.hero{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-l);padding:clamp(26px,4vw,52px);margin:0 0 40px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:3px;background:linear-gradient(90deg,var(--button),var(--blue) 40%,transparent 80%)}
.hero h1{max-width:24ch;margin-top:.2em}
.hero-main>p{font-size:18px;color:var(--muted);max-width:56ch;margin:0}
.hero-search{margin:26px 0 0;max-width:620px;background:var(--field)}
.hero-search input{height:48px}
.hero-hints{margin:14px 0 0;display:flex;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--faint);align-items:center}
.hero-hints a{color:var(--muted);text-decoration:none;border:1px solid var(--line);border-radius:var(--r-s);padding:2px 10px;transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}
.hero-hints a:hover{border-color:var(--blue);color:var(--ink)}
.section{margin:0 0 44px}
.section-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:16px;gap:12px}
.section-heading h2{margin:4px 0 0;padding:0;font-size:1.35rem}
.section-heading a{font-size:14px}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.card-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.article-card{display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-l);padding:18px 20px;text-decoration:none;color:var(--ink);box-shadow:var(--shadow-1);transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),background-color var(--t) var(--ease),box-shadow var(--t) var(--ease)}
.article-card:hover{transform:translateY(-2px);border-color:var(--blue);background:var(--raised);box-shadow:var(--shadow-2);color:var(--ink)}
.article-card:active{transform:translateY(0)}
.article-card span,.article-card small{font-size:12px;color:var(--blue);font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.article-card h2,.article-card h3{font-size:1.05rem;margin:8px 0 6px;padding:0}
.article-card p{color:var(--muted);margin:0;font-size:14px;line-height:1.5}
.article-card .count{display:block;margin-top:12px;color:var(--faint);text-transform:none;letter-spacing:0;font-weight:500}
.quick{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;counter-reset:q}
.quick a{counter-increment:q;display:block;padding:14px 16px 14px 52px;position:relative;border:1px solid var(--line);border-radius:var(--r-l);background:var(--field);text-decoration:none;color:var(--ink);font-size:15px;transition:border-color var(--t) var(--ease),background-color var(--t) var(--ease)}
.quick a::before{content:counter(q);position:absolute;left:14px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:var(--r-s);background:var(--accent-soft);color:var(--blue);font-weight:700;font-size:13px;display:grid;place-items:center}
.quick a:hover{border-color:var(--blue);background:var(--paper)}
.faq-list{display:grid;gap:8px}
.faq-list a{display:flex;justify-content:space-between;gap:12px;padding:12px 16px;border:1px solid var(--line-soft);border-radius:var(--r-m);background:var(--paper);text-decoration:none;color:var(--ink);transition:border-color var(--t-fast) var(--ease)}
.faq-list a::after{content:"›";color:var(--faint)}
.faq-list a:hover{border-color:var(--blue)}
.empty-state{padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-l)}
.empty-state h2{margin:0 0 8px;padding:0}

/* Pesquisa */
.search-results{position:absolute;z-index:30;top:calc(100% + 6px);left:0;right:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-l);box-shadow:var(--shadow-2);max-height:60vh;overflow:auto;padding:6px;animation:navOpen var(--t-fast) var(--ease)}
.search-results a{display:block;padding:9px 10px;border-radius:var(--r-m);text-decoration:none;color:var(--ink)}
.search-results a:hover,.search-results a:focus{background:var(--accent-soft);color:var(--ink)}
.search-results small{display:block;color:var(--muted)}
.no-results{padding:12px;color:var(--muted)}
.no-results.loading::before{content:"";display:inline-block;width:12px;height:12px;margin-right:8px;border:2px solid var(--line);border-top-color:var(--blue);border-radius:50%;vertical-align:-2px;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Diagramas e imagens */
.diagram{margin:26px 0;padding:0;border:1px solid var(--line);border-radius:var(--r-l);background:var(--field);overflow:hidden}
.diagram .diagram-scroll{overflow-x:auto;padding:18px;text-align:center;-webkit-overflow-scrolling:touch}
.diagram img{max-width:100%;width:100%;height:auto;border:0;background:transparent;cursor:zoom-in;display:inline-block}
.diagram figcaption{display:flex;justify-content:space-between;gap:12px;align-items:center;font-size:13px;color:var(--muted);padding:10px 16px;border-top:1px solid var(--line);background:var(--paper)}
.diagram figcaption button{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--blue);background:var(--accent-soft);color:var(--ink);border-radius:var(--r-m);padding:6px 14px;min-height:36px;font-size:13px;font-weight:650;cursor:pointer;transition:background-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.diagram figcaption button:active{transform:scale(.97)}
.diagram figcaption button:hover{background:#27405c}.diagram figcaption .scroll-hint{display:none;color:var(--faint);font-size:12px}

/* Modal */
dialog{padding:0;max-width:96vw;max-height:92vh;border:1px solid var(--line);border-radius:var(--r-l);background:var(--paper);color:var(--ink);box-shadow:0 25px 100px #000a}
dialog[open]{display:flex;flex-direction:column;width:min(96vw,1240px);height:min(92vh,880px);animation:dialogIn var(--t) var(--ease)}
dialog::backdrop{background:#0a0b0dd9}
@keyframes dialogIn{from{opacity:0;transform:scale(.97)}to{opacity:1;transform:none}}
.viewer-bar{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;border-bottom:1px solid var(--line);flex:none}
.viewer-tools{display:flex;align-items:center;gap:6px}
.viewer-tools output{min-width:52px;text-align:center;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.viewer-bar button{min-width:44px;min-height:40px;border:1px solid var(--line);padding:4px 14px;background:var(--field);color:var(--ink);border-radius:var(--r-m);cursor:pointer;transition:border-color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease)}
.viewer-bar button:hover:not(:disabled){border-color:var(--blue);background:var(--raised)}
.viewer-bar button:disabled{opacity:.45;cursor:default}
.viewer-stage{display:flex;flex:1;min-height:0;overflow:auto;background:var(--field);padding:12px;overscroll-behavior:contain}
.viewer-stage img{display:block;flex:none;width:var(--w,100%);max-width:none;height:auto;margin:auto;user-select:none;-webkit-user-drag:none}
.viewer-stage.pannable{cursor:grab}.viewer-stage.dragging{cursor:grabbing}
.viewer-stage:focus-visible{outline-offset:-3px}

.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--raised);border:1px solid var(--blue);color:var(--ink);padding:10px 16px;border-radius:var(--r-m);z-index:40;box-shadow:var(--shadow-2);animation:toastIn var(--t) var(--ease)}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translateX(-50%)}}
.footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;padding:22px max(28px,calc((100vw - 1600px)/2 + 28px));color:var(--faint);font-size:13px;background:var(--bg)}
.footer a{color:var(--muted)}

/* Responsivo */
@media(max-width:1100px){.card-grid.three,.quick{grid-template-columns:repeat(2,minmax(0,1fr))}.layout{grid-template-columns:230px minmax(0,1fr);gap:32px}.toc{display:none}.nav-links{display:none}}
@media(max-width:700px){
  .topbar{height:60px;padding:0 14px;gap:10px}
  .menu-button{display:block}
  .brand{font-size:15px}.brand small{display:none}
  .topbar>.search{display:none}
  .topbar::after{content:"";margin-left:auto}
  .layout{display:block;padding:22px 16px 48px}
  .sidebar{display:none;position:fixed;z-index:25;inset:60px 0 0;max-height:none;background:var(--bg);border:0;overflow:auto;padding:18px 20px}
  .sidebar.open{display:block;animation:navOpen var(--t) var(--ease)}
  .card-grid,.card-grid.three,.quick,.pager{grid-template-columns:1fr}
  .pager .next,.pager .prev{grid-column:1}
  .hero{padding:24px 18px;margin-bottom:32px}
  .hero h1{font-size:2rem}
  .footer{padding:20px 16px;flex-direction:column}
  .mobile-search{display:flex;margin:0 0 20px;max-width:none}
}
.mobile-search{display:none}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Revisão final: hierarquia, desktop largo, mobile */
.nav-group>summary{gap:10px;font-size:11.5px;color:var(--muted);border-top:1px solid var(--line-soft);border-radius:0;padding:12px 10px 8px;margin-top:2px}
.nav-group:first-of-type>summary{border-top:0}
.nav-group:has([aria-current=page])>summary{color:var(--ink)}
.nav-group>summary:focus-visible,.nav-subgroup a:focus-visible,.toc a:focus-visible{outline-offset:-2px}
.nav-subgroup h3{font-size:13px;font-weight:650;color:var(--ink);margin:10px 0 4px 10px}
.nav-subgroup a[aria-current=page]{background:var(--accent-soft);box-shadow:inset 0 0 0 1px #2d4766}
.pager a{min-height:64px;position:relative}
.pager .prev small::before{content:"← ";color:var(--blue)}
.pager .next small::after{content:" →";color:var(--blue)}
.article-actions button,.button{min-height:40px}
.layout.home{grid-template-columns:268px minmax(0,1080px)}
.layout.home .toc{display:none}
@media(min-width:1700px){.layout.home{grid-template-columns:268px minmax(0,1200px)}.layout.home .card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.search-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-m);background:var(--paper);color:var(--ink);cursor:pointer;place-items:center;margin-left:auto;transition:background-color var(--t-fast) var(--ease)}
.search-toggle:hover{background:var(--raised)}
.search-icon{width:16px;height:16px;background:var(--ink);-webkit-mask:url('/assets/search.svg') center/contain no-repeat;mask:url('/assets/search.svg') center/contain no-repeat}
.menu-icon{display:block;width:18px;height:2px;background:var(--ink);box-shadow:0 6px var(--ink),0 -6px var(--ink)}
@media(max-width:1100px){.layout.home{grid-template-columns:230px minmax(0,1fr)}}
@media(max-width:700px){
  .menu-button{width:44px;height:44px;padding:0;display:grid;place-items:center}
  .search-toggle{display:grid}
  .topbar::after{display:none}
  .topbar{gap:8px}
  .layout,.layout.home{display:block;padding:14px 16px 40px}
  .breadcrumbs{margin-bottom:12px}
  .hero{padding:20px 16px;margin-bottom:22px}
  .hero h1{font-size:1.75rem;margin:.15em 0 .3em}
  .hero-main>p{font-size:16px}
  .hero-search{margin-top:18px}
  .hero-search kbd,.hero-hints{display:none}
  .diagram img{max-width:none;width:720px}
  .card-grid.three .article-card{padding:12px 16px}
  .section{margin-bottom:28px}
  .section-heading{margin-bottom:10px}
  h1{font-size:1.8rem}
  h2{font-size:1.3rem;margin:1.6em 0 .55em}
  .lede{font-size:17px}
  .article-body{margin-top:24px}
  .card-grid,.card-grid.three{gap:10px}
  .article-card{padding:14px 16px}
  .article-card>span{display:none}
  .article-card h2,.article-card h3{margin-top:0}
  .card-grid.three .article-card p{display:none}
  .card-grid.three .article-card .count{margin-top:4px}
  .quick a{min-height:52px;display:flex;align-items:center}
  .nav-subgroup a{padding:11px 10px 11px 12px}
  .nav-group>summary{min-height:44px}
  .home-link,.all-articles{padding:12px 10px}
  .article-actions button,.button,.pager a{min-height:44px}
  .article-actions{margin:14px 0}
  .article-actions button{flex:1 1 auto}
  .mobile-search{margin-bottom:12px}
  .mobile-search input{height:46px}
  .diagram .diagram-scroll{padding:12px}
  .diagram figcaption{flex-wrap:wrap}
  .diagram figcaption .scroll-hint{display:inline}
  .diagram figcaption .cap{flex:1 1 100%}
  dialog[open]{width:100vw;height:100dvh;max-width:100vw;max-height:100dvh;border-radius:0}
  .viewer-bar{flex-wrap:wrap}
}

.nav-group>summary::after{flex:none}
.hero-aside{display:none}
@media(min-width:1180px){
  .layout.home .hero{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start}
  .layout.home .hero-aside{display:block;padding:20px;border:1px solid var(--line);border-radius:var(--r-l);background:var(--field);align-self:end}
  .hero-aside h2{margin:0 0 12px;padding:0;font-size:.8rem;letter-spacing:.09em;text-transform:uppercase;color:var(--blue)}
  .hero-aside .quick{grid-template-columns:1fr}
  .layout.home .quick-section{display:none}
}
@media(max-width:700px){.brand{min-height:44px}.diagram figcaption button{min-height:44px;min-width:44px}}
@media(max-width:900px){.diagram img{max-width:none;width:720px}}