/* iRoomBaseTP — Independent Robot Vacuum Help Center */
:root{
  --navy:#14243A;--navy-2:#1d3352;--blue:#2563EB;--blue-d:#1d4fc4;--cyan:#E7F5FF;
  --white:#FFFFFF;--gray:#F5F7FA;--text:#202C3A;--muted:#5a6878;--border:#E1E7EF;
  --ok:#0f8a5f;--warn:#b45309;--warn-bg:#fff7ed;
  --radius:14px;--radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(20,36,58,.06),0 1px 1px rgba(20,36,58,.04);
  --shadow:0 10px 30px -12px rgba(20,36,58,.22);
  --font:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --wrap:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.68;color:var(--text);background:var(--white);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--blue-d)}
h1,h2,h3,h4{color:var(--navy);line-height:1.2;letter-spacing:-.02em;margin:0 0 .6em}
h1{font-size:clamp(2rem,4.2vw,3.25rem);font-weight:800}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:750}
h3{font-size:1.2rem;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1.1em}
ul,ol{padding-left:1.25em;margin:0 0 1.2em}
li{margin:.3em 0}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip:focus{left:12px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor;border-radius:2px}
.lead{font-size:1.15rem;color:var(--muted);max-width:62ch}
.muted{color:var(--muted)}

/* ---------- header ---------- */
.topbar{background:var(--navy);color:#cbd6e4;font-size:.84rem}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:16px}
.topbar p{margin:0}
.topbar nav{display:flex;gap:20px}
.topbar a{color:#e6eef8;text-decoration:none}
.topbar a:hover,.topbar a[aria-current=page]{color:#fff;text-decoration:underline}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(160%) blur(10px);-webkit-backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--border);transition:box-shadow .25s}
.site-header.scrolled{box-shadow:0 6px 20px -10px rgba(20,36,58,.25)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:20px}
.brand{display:flex;align-items:center;flex-shrink:0}
.brand img{width:190px;height:auto}
.mainnav ul{list-style:none;display:flex;gap:2px;margin:0;padding:0}
.mainnav a{display:block;padding:9px 11px;border-radius:9px;color:var(--text);text-decoration:none;font-weight:550;font-size:.93rem;white-space:nowrap;transition:background .2s,color .2s}
.mainnav a:hover{background:var(--gray);color:var(--navy)}
.mainnav a[aria-current=page]{background:var(--cyan);color:var(--blue)}
.mainnav .only-mobile{display:none}
.nav-toggle{display:none;align-items:center;gap:8px;background:var(--gray);border:1px solid var(--border);border-radius:10px;padding:9px 13px;font:600 .92rem var(--font);color:var(--navy);cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--navy);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--navy);transition:transform .25s}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}
.nav-open .nav-toggle span{background:transparent}
.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- breadcrumb ---------- */
.crumbs{background:var(--gray);border-bottom:1px solid var(--border);font-size:.88rem}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:12px 0}
.crumbs li{margin:0;display:flex;align-items:center;gap:6px;color:var(--muted)}
.crumbs li+li::before{content:"/";color:#9aa8b8}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--blue);text-decoration:underline}
.crumbs [aria-current]{color:var(--navy);font-weight:600}

/* ---------- heroes ---------- */
.hero-home{position:relative;min-height:min(84vh,720px);display:flex;align-items:center;overflow:hidden;background:var(--navy);color:#fff}
.hero-home>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:60% 50%}
.hero-home::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,26,43,.92) 0%,rgba(14,26,43,.74) 38%,rgba(14,26,43,.12) 72%,rgba(14,26,43,0) 100%)}
.hero-home .wrap{position:relative;z-index:1;width:100%;padding-top:70px;padding-bottom:70px}
.hero-home h1{color:#fff;max-width:14ch}
.hero-home .eyebrow{color:#93c5fd}
.hero-home .lead{color:#d6e2f0}
.hero-home .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;list-style:none;padding:0}
.hero-home .chips li{margin:0}
.hero-home .chips a{display:inline-block;padding:7px 13px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);color:#fff;text-decoration:none;font-size:.88rem;transition:background .2s}
.hero-home .chips a:hover{background:rgba(255,255,255,.2)}
.page-hero{background:linear-gradient(180deg,var(--cyan) 0%,#fff 100%);padding:54px 0 60px;overflow:hidden}
.page-hero .wrap{display:grid;grid-template-columns:1.02fr 1fr;gap:48px;align-items:center}
.page-hero .frame{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:16/10;background:#dfe6ee}
.page-hero .frame img{width:100%;height:100%;object-fit:cover}
.page-hero .meta{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:22px;font-size:.9rem;color:var(--muted);list-style:none;padding:0}
.page-hero .meta li{display:flex;align-items:center;gap:7px;margin:0}
.page-hero .meta li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--blue)}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:11px;font-weight:650;font-size:.97rem;text-decoration:none;border:1.5px solid transparent;transition:transform .15s,background .2s,box-shadow .2s;cursor:pointer;font-family:var(--font)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px -8px rgba(37,99,235,.6)}
.btn-primary:hover{background:var(--blue-d);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.hero-home .btn-ghost{color:#fff;border-color:rgba(255,255,255,.4)}
.hero-home .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.btn svg{width:18px;height:18px}

/* ---------- sections ---------- */
.section{padding:84px 0}
.section.alt{background:var(--gray)}
.section.tight{padding:60px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .eyebrow::before{display:none}

.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;position:relative}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfdbea}
.card h3{margin-bottom:.45em}
.card p:last-child{margin-bottom:0}
.card .ico{width:46px;height:46px;border-radius:12px;background:var(--cyan);color:var(--blue);display:grid;place-items:center;margin-bottom:16px}
.card .ico svg{width:24px;height:24px}
.card a.stretch{text-decoration:none;color:inherit}
.card a.stretch::after{content:"";position:absolute;inset:0;border-radius:inherit}
.card .go{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-weight:650;color:var(--blue);font-size:.93rem}
.card .go::after{content:"→";transition:transform .2s}
.card:hover .go::after{transform:translateX(4px)}
.card.flat{box-shadow:none}
.card.flat:hover{transform:none}
.tag{display:inline-block;font-size:.74rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:4px 9px;border-radius:6px;background:var(--cyan);color:var(--blue);margin-bottom:12px}

.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.rev .split-media{order:2}
.split-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);background:#e5eaf0}
.split-media img{width:100%;height:auto}
figure{margin:0}
figcaption{font-size:.86rem;color:var(--muted);padding:12px 4px 0}

/* steps */
.steps{list-style:none;padding:0;margin:0;counter-reset:s;display:grid;gap:16px}
.steps>li{counter-increment:s;position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px 22px 80px;margin:0}
.steps>li::before{content:counter(s,decimal-leading-zero);position:absolute;left:22px;top:20px;width:40px;height:40px;border-radius:11px;background:var(--navy);color:#fff;font-weight:750;font-size:.92rem;display:grid;place-items:center}
.steps>li h3{margin:0 0 .35em;font-size:1.08rem}
.steps>li p:last-child{margin-bottom:0}
.steps.compact>li{padding:16px 20px 16px 70px}
.steps.compact>li::before{width:34px;height:34px;left:20px;top:15px;font-size:.84rem}

/* callouts */
.callout{border-radius:var(--radius);padding:20px 22px;border:1px solid #cfe3fb;background:var(--cyan);display:grid;grid-template-columns:28px 1fr;gap:14px;margin:26px 0}
.callout svg{width:24px;height:24px;color:var(--blue);margin-top:2px}
.callout p:last-child{margin:0}
.callout strong{color:var(--navy)}
.callout.caution{background:var(--warn-bg);border-color:#fcd9b0}
.callout.caution svg{color:var(--warn)}

/* tables */
.tbl-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:#fff;margin:24px 0}
table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:620px}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--border);vertical-align:top}
th{background:var(--navy);color:#fff;font-weight:650;font-size:.86rem;letter-spacing:.02em}
tbody tr:nth-child(even){background:#fafbfd}
tbody tr:last-child td{border-bottom:0}
td strong{color:var(--navy)}

/* doc layout with toc */
.doc{display:grid;grid-template-columns:250px minmax(0,1fr);gap:56px;align-items:start}
.toc{position:sticky;top:96px;border-left:2px solid var(--border);padding:4px 0 4px 18px;font-size:.9rem}
.toc p{font-weight:750;color:var(--navy);text-transform:uppercase;letter-spacing:.08em;font-size:.75rem;margin-bottom:10px}
.toc ol{list-style:none;padding:0;margin:0}
.toc li{margin:0}
.toc a{display:block;padding:6px 0;color:var(--muted);text-decoration:none;line-height:1.35;transition:color .2s}
.toc a:hover,.toc a.active{color:var(--blue)}
.toc a.active{font-weight:650}
.doc-body>section{padding-bottom:30px;margin-bottom:46px;border-bottom:1px solid var(--border);scroll-margin-top:96px}
.doc-body>section:last-child{border-bottom:0;margin-bottom:0}
.doc-body h2{margin-top:0}
.doc-body h3{margin-top:1.6em}
.doc-body figure{margin:26px 0;border-radius:var(--radius);overflow:hidden;background:#e5eaf0}
.doc-body figure figcaption{background:#fff;padding:12px 2px 0}

/* problem blocks */
.issue{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:#fff;margin:22px 0}
.issue-head{display:flex;align-items:center;gap:12px;padding:16px 22px;background:var(--gray);border-bottom:1px solid var(--border)}
.issue-head h3{margin:0;font-size:1.08rem}
.issue-body{display:grid;grid-template-columns:1fr 1.4fr;gap:0}
.issue-body>div{padding:18px 22px}
.issue-body>div+div{border-left:1px solid var(--border)}
.issue-body h4{font-size:.78rem;text-transform:uppercase;letter-spacing:.09em;color:var(--blue);margin:0 0 8px}
.issue-body ul,.issue-body ol{margin:0;padding-left:1.1em;font-size:.95rem}
.issue-foot{padding:12px 22px;border-top:1px dashed var(--border);font-size:.9rem;color:var(--muted)}

/* checklist */
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.checklist li{margin:0}
.checklist label{display:flex;gap:14px;align-items:flex-start;padding:14px 16px;border:1px solid var(--border);border-radius:12px;background:#fff;cursor:pointer;transition:border-color .2s,background .2s}
.checklist label:hover{border-color:#bcd2ee}
.checklist input{appearance:none;-webkit-appearance:none;width:22px;height:22px;border:2px solid #b8c6d6;border-radius:6px;flex-shrink:0;margin:2px 0 0;display:grid;place-items:center;transition:all .2s;cursor:pointer}
.checklist input::after{content:"";width:6px;height:11px;border:solid #fff;border-width:0 2.5px 2.5px 0;transform:rotate(45deg) translate(-1px,-1px);opacity:0}
.checklist input:checked{background:var(--blue);border-color:var(--blue)}
.checklist input:checked::after{opacity:1}
.checklist input:checked+span{color:var(--muted);text-decoration:line-through;text-decoration-color:#9fb1c6}
.checklist span strong{display:block;color:var(--navy)}
.progress{display:flex;align-items:center;gap:14px;margin:0 0 18px;font-size:.9rem;color:var(--muted)}
.progress .bar{flex:1;height:8px;border-radius:9px;background:var(--border);overflow:hidden}
.progress .bar i{display:block;height:100%;width:0;background:var(--blue);transition:width .3s}

/* faq */
.faq{display:grid;gap:12px}
.faq details{border:1px solid var(--border);border-radius:12px;background:#fff;transition:border-color .2s,box-shadow .2s}
.faq details[open]{border-color:#bcd2ee;box-shadow:var(--shadow-sm)}
.faq summary{list-style:none;cursor:pointer;padding:18px 56px 18px 22px;font-weight:650;color:var(--navy);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:22px;top:50%;width:11px;height:11px;border:solid var(--blue);border-width:0 2px 2px 0;transform:translateY(-70%) rotate(45deg);transition:transform .25s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq .ans{padding:0 22px 20px;color:#3a4757}
.faq .ans p:last-child{margin:0}

/* schedule / kv */
.sched{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.sched .card h3{font-size:1rem;display:flex;align-items:center;gap:10px}
.sched .card h3 i{font-style:normal;font-size:.72rem;font-weight:750;padding:3px 8px;border-radius:6px;background:var(--navy);color:#fff;letter-spacing:.06em;text-transform:uppercase}
.sched ul{margin:0;padding-left:1.1em;font-size:.94rem}

/* compare */
.versus{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;background:#fff}
.versus>div{padding:30px}
.versus>div+div{border-left:1px solid var(--border);background:var(--gray)}
.versus h3{display:flex;align-items:center;gap:10px}
.versus .pill{font-size:.72rem;padding:3px 9px;border-radius:999px;font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.pill.soft{background:#dcfce7;color:#166534}.pill.hard{background:#fee2e2;color:#991b1b}

/* articles */
.article-index{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;list-style:none;padding:0;margin:0}
.article-index li{margin:0}
.article-index a{display:flex;flex-direction:column;gap:8px;height:100%;padding:18px;border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--navy);font-weight:650;line-height:1.35;background:#fff;transition:all .2s}
.article-index a span{font-size:.75rem;color:var(--blue);font-weight:750;letter-spacing:.1em}
.article-index a:hover{border-color:var(--blue);transform:translateY(-2px);box-shadow:var(--shadow)}
.article{max-width:820px;margin:0 auto;scroll-margin-top:90px}
.article+.article{margin-top:80px;padding-top:80px;border-top:1px solid var(--border)}
.article header .tag{margin-bottom:14px}
.article .intro{font-size:1.1rem;color:#3a4757}
.article figure{margin:28px 0;border-radius:var(--radius);overflow:hidden}
.takeaway{background:var(--navy);color:#e6eef8;border-radius:var(--radius);padding:22px 24px;margin-top:28px}
.takeaway strong{color:#fff;display:block;margin-bottom:6px;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase}
.takeaway p{margin:0}
.backtop{display:inline-block;margin-top:18px;font-size:.9rem;font-weight:600;text-decoration:none}

/* related + cta */
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cta-band{background:linear-gradient(120deg,var(--navy) 0%,#1f3a63 100%);color:#d6e2f0;border-radius:var(--radius-lg);padding:46px;display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;border:40px solid rgba(96,165,250,.12)}
.cta-band h2{color:#fff;margin-bottom:.35em}
.cta-band p{margin:0}
.cta-band .btns{margin:0;justify-content:flex-end;position:relative;z-index:1}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}

.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:#fff}
.stat-row>div{padding:22px}
.stat-row>div+div{border-left:1px solid var(--border)}
.stat-row b{display:block;color:var(--navy);font-size:1.05rem;margin-bottom:4px}
.stat-row span{font-size:.92rem;color:var(--muted)}

/* forms */
.form{display:grid;gap:18px}
.field label{display:block;font-weight:650;color:var(--navy);margin-bottom:7px;font-size:.94rem}
.field .hint{font-size:.84rem;color:var(--muted);margin-top:6px}
.field input,.field select,.field textarea{width:100%;font:inherit;font-size:1rem;color:var(--text);background:#fff;border:1.5px solid var(--border);border-radius:11px;padding:12px 14px;transition:border-color .2s,box-shadow .2s}
.field textarea{min-height:170px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(37,99,235,.15)}
.field input:user-invalid,.field textarea:user-invalid,.field select:user-invalid{border-color:#dc2626}
.field .err{display:none;color:#b91c1c;font-size:.85rem;margin-top:6px}
.field.invalid .err{display:block}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:#dc2626}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.req{color:#b91c1c}
.form-status{display:none;border-radius:12px;padding:14px 16px;font-size:.95rem}
.form-status.show{display:block;background:var(--cyan);border:1px solid #cfe3fb;color:var(--navy)}
.form-status.err{background:#fef2f2;border-color:#fecaca;color:#7f1d1d}

/* footer */
.site-footer{background:var(--navy);color:#b7c4d4;padding:68px 0 0;margin-top:0;font-size:.94rem}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.site-footer h2{color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:0 0 9px}
.site-footer a{color:#dbe5f1;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.foot-brand img{width:180px;filter:brightness(0) invert(1);opacity:.95;margin-bottom:16px}
.foot-note{border-top:1px solid rgba(255,255,255,.1);margin-top:48px;padding:22px 0 26px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.84rem;color:#8fa1b6}
.foot-note p{margin:0;max-width:760px}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}

/* responsive */
@media (max-width:1180px){
  .mainnav a{padding:8px 8px;font-size:.88rem}
  .brand img{width:170px}
}
@media (max-width:1080px){
  .nav-toggle{display:inline-flex}
  .mainnav{position:absolute;left:0;right:0;top:100%;height:calc(100vh - 70px);height:calc(100dvh - 70px);background:#fff;padding:18px 24px 40px;overflow-y:auto;transform:translateY(-10px);opacity:0;visibility:hidden;transition:transform .25s,opacity .25s,visibility .25s;border-top:1px solid var(--border)}
  .nav-open .mainnav{transform:none;opacity:1;visibility:visible}
  .mainnav ul{flex-direction:column;gap:4px}
  .mainnav a{padding:14px 14px;font-size:1.02rem;border-bottom:1px solid var(--gray)}
  .mainnav .only-mobile{display:block}
  .doc{grid-template-columns:1fr;gap:20px}
  .toc{position:static;border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;background:var(--gray)}
  .toc ol{columns:2;column-gap:24px}
  .article-index{grid-template-columns:repeat(3,1fr)}
  .sched{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .page-hero .wrap,.split,.cta-band{grid-template-columns:1fr}
  .split.rev .split-media{order:0}
  .g3,.g4,.related{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta-band .btns{justify-content:flex-start}
  .stat-row{grid-template-columns:1fr 1fr}
  .stat-row>div:nth-child(3){border-left:0}
  .stat-row>div:nth-child(n+3){border-top:1px solid var(--border)}
  .issue-body{grid-template-columns:1fr}
  .issue-body>div+div{border-left:0;border-top:1px solid var(--border)}
  .versus{grid-template-columns:1fr}
  .versus>div+div{border-left:0;border-top:1px solid var(--border)}
}
@media (max-width:640px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .topbar p{display:none}
  .topbar .wrap{justify-content:center}
  .section{padding:60px 0}
  .g2,.g3,.g4,.related,.form-row,.sched{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .article-index{grid-template-columns:1fr 1fr}
  .toc ol{columns:1}
  .cta-band{padding:30px 22px}
  .steps>li{padding:20px 18px 20px 68px}
  .steps>li::before{left:16px;width:36px;height:36px}
  .hero-home::after{background:linear-gradient(180deg,rgba(14,26,43,.55) 0%,rgba(14,26,43,.88) 60%)}
  .hero-home{align-items:flex-end}
  .brand img{width:158px}
}