/* ===================================================================
   mn77.homes  ·  frame-responsive-242406.css
   Class prefix .... surface24240-
   Palette ......... #0A0A0A bg · #DEB887 text · #A0522D accent
   Canvas .......... mobile-first 320–430px, centered on wide screens
   =================================================================== */

/* ---------- design tokens ---------- */
:root{
  --surface24240-bg:          #0A0A0A;
  --surface24240-bg-elev:     #15120e;
  --surface24240-bg-elev2:    #1d1812;
  --surface24240-line:        #2c241b;
  --surface24240-line-soft:   #201a14;
  --surface24240-text:        #DEB887;
  --surface24240-text-soft:   #a89373;
  --surface24240-text-dim:    #6e5e48;
  --surface24240-text-strong: #f6e6c8;
  --surface24240-accent:      #A0522D;
  --surface24240-accent-deep: #7c3e21;
  --surface24240-accent-soft: rgba(160, 82, 45, .22);
  --surface24240-good:        #6fae6b;
  --surface24240-warn:        #d39a4d;

  --surface24240-radius-xs: 4px;
  --surface24240-radius-sm: 6px;
  --surface24240-radius-md: 10px;
  --surface24240-radius-lg: 14px;

  --surface24240-gap:    8px;
  --surface24240-header-h: 56px;
  --surface24240-bottomnav-h: 60px;

  /* literal 430 mobile breakpoint token */
  --surface24240-bp-430: 430px;
  --surface24240-canvas-max: 480px;

  --surface24240-ff-head: "Hind Siliguri", "Noto Sans Bengali", "SolaimanLipi", system-ui, sans-serif;
  --surface24240-ff-body: "Noto Sans Bengali", "Hind Siliguri", "SolaimanLipi", system-ui, sans-serif;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body{
  margin: 0;
  font-family: var(--surface24240-ff-body);
  background: var(--surface24240-bg);
  color: var(--surface24240-text);
  line-height: 1.55;
  font-size: 14px;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  /* keep mobile canvas centered when the viewport goes wide */
  max-width: var(--surface24240-canvas-max);
  margin-left: auto;
  margin-right: auto;
}
img { display: block; max-width: 100%; }
a { color: var(--surface24240-text-strong); text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul, ol { margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0; font-family: var(--surface24240-ff-head); font-weight: 600; color: var(--surface24240-text-strong); }
p  { margin: 0 0 10px; }
p:last-child { margin-bottom: 0; }

/* ---------- skip link ---------- */
.surface24240-skip{
  position: absolute; top: 0; left: -9999px; z-index: 200;
  padding: 8px 12px; background: var(--surface24240-accent); color: #fff;
  border-radius: 0 0 var(--surface24240-radius-sm) 0;
}
.surface24240-skip:focus { left: 0; }

/* ---------- top header ---------- */
.surface24240-header{
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  min-height: var(--surface24240-header-h);
  background: linear-gradient(180deg, #111111 0%, #0A0A0A 100%);
  border-bottom: 1px solid var(--surface24240-line);
}
.surface24240-brandrow{
  display: inline-flex; align-items: center; gap: 10px;
  flex: 1; min-width: 0;
}
.surface24240-brand{
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--surface24240-text-strong);
}
.surface24240-logo{
  width: 36px; height: 36px; flex: none;
  border-radius: var(--surface24240-radius-sm);
  background: #1a1a1a;
  object-fit: cover;
  border: 1px solid var(--surface24240-line);
}
.surface24240-sitename{
  font-family: var(--surface24240-ff-head);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: .4px;
  color: var(--surface24240-text-strong);
  line-height: 1.1;
}
.surface24240-actions{
  display: inline-flex; align-items: center; gap: 6px;
  flex: none;
}
.surface24240-btn{
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px;
  min-height: 36px; padding: 0 14px;
  border-radius: var(--surface24240-radius-sm);
  font-weight: 600; font-size: 13px;
  font-family: var(--surface24240-ff-head);
  transition: background-color .18s ease, color .18s ease, border-color .18s ease;
}
.surface24240-btn-login{
  background: transparent;
  color: var(--surface24240-text);
  border: 1px solid var(--surface24240-line);
}
.surface24240-btn-login:active,
.surface24240-btn-login:focus-visible {
  background: #161310; color: var(--surface24240-text-strong);
  border-color: var(--surface24240-accent);
}
.surface24240-btn-register{
  background: var(--surface24240-accent);
  color: #fff;
  box-shadow: inset 0 0 0 1px var(--surface24240-accent-deep);
}
.surface24240-btn-register:active,
.surface24240-btn-register:focus-visible {
  background: var(--surface24240-accent-deep);
}
.surface24240-menubtn{
  width: 36px; height: 36px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--surface24240-line);
  border-radius: var(--surface24240-radius-sm);
  color: var(--surface24240-text);
}
.surface24240-menubtn:hover,
.surface24240-menubtn:active { color: var(--surface24240-text-strong); border-color: var(--surface24240-accent); }
.surface24240-menubtn-bars,
.surface24240-menubtn-bars::before,
.surface24240-menubtn-bars::after{
  content: ""; display: block;
  width: 16px; height: 2px; background: currentColor; border-radius: 1px;
  position: relative;
}
.surface24240-menubtn-bars::before { position: absolute; top: -5px; left: 0; }
.surface24240-menubtn-bars::after  { position: absolute; top:  5px; left: 0; }

/* ---------- partition drawer menu ---------- */
.surface24240-menu{
  position: fixed; top: 0; right: -100%;
  width: 80%; max-width: 320px;
  height: 100vh;
  background: #0e0c09;
  border-left: 1px solid var(--surface24240-line);
  padding: 56px 14px calc(var(--surface24240-bottomnav-h) + 14px);
  z-index: 110;
  overflow-y: auto;
  transition: right .25s ease;
}
.surface24240-menu.surface24240-menu-open { right: 0; }
.surface24240-menu-close{
  position: absolute; top: 12px; right: 12px;
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--surface24240-text);
  border: 1px solid var(--surface24240-line);
  border-radius: var(--surface24240-radius-sm);
  font-size: 18px; line-height: 1;
}
.surface24240-menu-partition{
  padding: 12px 0 6px;
  border-bottom: 1px dashed var(--surface24240-line-soft);
}
.surface24240-menu-partition:last-child { border-bottom: 0; }
.surface24240-menu-label{
  font-size: 11px; letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--surface24240-text-dim);
  padding: 0 4px;
  margin: 0 0 6px;
}
.surface24240-menu-list{ list-style: none; display: grid; gap: 2px; }
.surface24240-menu-list a{
  display: flex; align-items: center; gap: 10px;
  padding: 11px 10px;
  border-radius: var(--surface24240-radius-sm);
  color: var(--surface24240-text);
  font-size: 14px;
  transition: background-color .15s ease, color .15s ease;
}
.surface24240-menu-list a::before{
  content: ""; flex: none;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--surface24240-accent);
}
.surface24240-menu-list a:hover,
.surface24240-menu-list a:active,
.surface24240-menu-list a:focus-visible {
  background: var(--surface24240-accent-soft);
  color: var(--surface24240-text-strong);
}
.surface24240-menu-overlay{
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, .6);
  z-index: 105;
  opacity: 0; visibility: hidden;
  transition: opacity .2s ease;
}
.surface24240-menu-overlay.surface24240-menu-open { opacity: 1; visibility: visible; }

/* ---------- main ---------- */
.surface24240-main{
  padding: 12px 12px calc(var(--surface24240-bottomnav-h) + 24px);
}

/* ---------- page H1 ---------- */
.surface24240-pagetitle{
  font-size: 22px; line-height: 1.3;
  color: var(--surface24240-text-strong);
  padding: 6px 0 4px;
}
.surface24240-pageintro{
  color: var(--surface24240-text-soft);
  font-size: 13px;
  margin: 0 0 12px;
}

/* ---------- hero carousel ---------- */
.surface24240-hero{
  position: relative;
  border-radius: var(--surface24240-radius-lg);
  overflow: hidden;
  background: #111;
  margin-bottom: 14px;
  border: 1px solid var(--surface24240-line);
}
.surface24240-hero-track{
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.surface24240-hero-track::-webkit-scrollbar { display: none; }
.surface24240-slide{
  flex: 0 0 100%;
  scroll-snap-align: start;
  position: relative;
}
.surface24240-slide-img{
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}
.surface24240-slide-cap{
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 28px 14px 14px;
  background: linear-gradient(0deg, rgba(0, 0, 0, .9), rgba(0, 0, 0, 0));
  color: #fff;
}
.surface24240-slide-cap strong{
  display: block;
  font-family: var(--surface24240-ff-head);
  font-size: 14px;
  margin-bottom: 2px;
}
.surface24240-slide-cap span{ font-size: 11px; color: var(--surface24240-text); }
.surface24240-dots{
  position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%);
  display: inline-flex; gap: 6px;
  z-index: 2;
}
.surface24240-dot{
  width: 7px; height: 7px; padding: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, .42);
  border: 0;
  transition: background-color .2s ease, transform .2s ease;
}
.surface24240-dot.surface24240-dot-active {
  background: var(--surface24240-accent);
  transform: scale(1.18);
}

/* ---------- section ---------- */
.surface24240-section { margin: 18px 0; }
.surface24240-section-head{
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; margin: 0 0 10px;
}
.surface24240-section-title{
  font-size: 16px;
  color: var(--surface24240-text-strong);
  position: relative;
  padding-left: 12px;
  line-height: 1.35;
}
.surface24240-section-title::before{
  content: ""; position: absolute; left: 0; top: 4px; bottom: 4px;
  width: 4px; border-radius: 2px;
  background: var(--surface24240-accent);
}
.surface24240-section-more{
  font-size: 12px; color: var(--surface24240-text-soft);
  border: 1px solid var(--surface24240-line);
  border-radius: 999px;
  padding: 4px 10px;
  transition: color .15s ease, border-color .15s ease;
}
.surface24240-section-more:hover,
.surface24240-section-more:active {
  color: var(--surface24240-text-strong);
  border-color: var(--surface24240-accent);
}
.surface24240-section-intro{
  margin: 0 0 10px;
  color: var(--surface24240-text-soft);
  font-size: 13px;
}
.surface24240-section-intro a{
  color: var(--surface24240-accent);
  border-bottom: 1px dashed var(--surface24240-accent-deep);
  padding-bottom: 1px;
}

/* ---------- game grid ---------- */
.surface24240-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.surface24240-card{
  display: flex; flex-direction: column; align-items: stretch;
  gap: 4px;
  padding: 5px 5px 7px;
  background: var(--surface24240-bg-elev);
  border: 1px solid var(--surface24240-line);
  border-radius: var(--surface24240-radius-sm);
  transition: background-color .15s ease, border-color .15s ease;
  text-align: center;
  min-width: 0;
  overflow: hidden;
}
.surface24240-card:hover,
.surface24240-card:active,
.surface24240-card:focus-visible {
  background: var(--surface24240-bg-elev2);
  border-color: var(--surface24240-accent);
  outline: none;
}
.surface24240-card-img{
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--surface24240-radius-xs);
  background: #0a0a0a;
  display: block;
}
.surface24240-card-name{
  font-size: 11px;
  line-height: 1.25;
  color: var(--surface24240-text);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
  min-height: 28px;
}

/* slightly wider phones keep 4 columns; from 430px onward allow 5 columns */
@media (min-width: 360px){
  .surface24240-grid { gap: 10px; }
}
@media (min-width: 430px){
  .surface24240-grid { grid-template-columns: repeat(5, 1fr); }
}

/* ---------- promo strip ---------- */
.surface24240-promos{
  display: grid; gap: 10px;
  margin: 14px 0;
}
.surface24240-promo{
  display: flex; align-items: center; gap: 12px;
  background: var(--surface24240-bg-elev);
  border: 1px solid var(--surface24240-line);
  border-radius: var(--surface24240-radius-md);
  padding: 12px;
  transition: background-color .15s ease, border-color .15s ease;
}
.surface24240-promo:active,
.surface24240-promo:focus-visible {
  background: var(--surface24240-bg-elev2);
  border-color: var(--surface24240-accent);
}
.surface24240-promo-badge{
  width: 42px; height: 42px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--surface24240-accent-soft);
  color: var(--surface24240-accent);
  border-radius: 50%;
  font-family: var(--surface24240-ff-head);
  font-weight: 700; font-size: 13px;
}
.surface24240-promo-body { flex: 1; min-width: 0; }
.surface24240-promo-body strong{
  display: block;
  color: var(--surface24240-text-strong);
  font-size: 14px; margin-bottom: 2px;
  font-family: var(--surface24240-ff-head);
}
.surface24240-promo-body span{
  color: var(--surface24240-text-soft);
  font-size: 12px;
}
.surface24240-promo-cta{
  flex: none;
  font-size: 12px;
  color: var(--surface24240-text-strong);
  background: var(--surface24240-accent);
  padding: 6px 12px;
  border-radius: 999px;
  font-family: var(--surface24240-ff-head);
  font-weight: 600;
}

/* ---------- info modules (scene-branch rhythm) ---------- */
.surface24240-info{
  background: var(--surface24240-bg-elev);
  border: 1px solid var(--surface24240-line);
  border-left: 3px solid var(--surface24240-accent);
  border-radius: var(--surface24240-radius-md);
  padding: 14px;
  margin: 14px 0;
}
.surface24240-info-title{
  font-size: 15px;
  color: var(--surface24240-text-strong);
  margin: 0 0 8px;
}
.surface24240-info p{
  font-size: 13px;
  color: var(--surface24240-text-soft);
  margin: 0 0 8px;
}
.surface24240-info p:last-child { margin-bottom: 0; }
.surface24240-info a{
  color: var(--surface24240-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.surface24240-info ul{
  list-style: none;
  display: grid; gap: 6px;
  padding-left: 0;
  font-size: 13px;
  color: var(--surface24240-text-soft);
  margin: 8px 0 0;
}
.surface24240-info ul li{
  position: relative;
  padding-left: 16px;
}
.surface24240-info ul li::before{
  content: "▪"; position: absolute; left: 0; top: 0;
  color: var(--surface24240-accent);
}

/* variant: tinted (good tone) */
.surface24240-info--tint{
  border-left-color: var(--surface24240-good);
}
.surface24240-info--tint ul li::before { color: var(--surface24240-good); }

/* variant: warn tone */
.surface24240-info--warn{
  border-left-color: var(--surface24240-warn);
}
.surface24240-info--warn ul li::before { color: var(--surface24240-warn); }

/* ---------- step list ---------- */
.surface24240-steps{
  list-style: none;
  display: grid; gap: 8px;
  counter-reset: surface24240-step;
  margin: 8px 0 0;
}
.surface24240-steps li{
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  align-items: start;
  background: #11100c;
  border: 1px solid var(--surface24240-line);
  border-radius: var(--surface24240-radius-sm);
  padding: 10px 12px;
}
.surface24240-steps li::before{
  counter-increment: surface24240-step;
  content: counter(surface24240-step);
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px;
  background: var(--surface24240-accent);
  color: #fff;
  border-radius: 50%;
  font-size: 12px; font-weight: 700;
  font-family: var(--surface24240-ff-head);
}
.surface24240-step-body strong{
  display: block;
  color: var(--surface24240-text-strong);
  font-size: 13px;
  margin-bottom: 2px;
}
.surface24240-step-body span{
  color: var(--surface24240-text-soft);
  font-size: 12px;
}

/* ---------- term glossary ---------- */
.surface24240-gloss{
  display: grid; gap: 8px;
  margin: 10px 0 0;
}
.surface24240-gloss-item{
  background: #11100c;
  border: 1px solid var(--surface24240-line);
  border-radius: var(--surface24240-radius-sm);
  padding: 10px 12px;
  margin: 0;
}
.surface24240-gloss-item dt{
  color: var(--surface24240-text-strong);
  font-size: 13px;
  font-family: var(--surface24240-ff-head);
  margin-bottom: 2px;
}
.surface24240-gloss-item dd{
  margin: 0;
  color: var(--surface24240-text-soft);
  font-size: 12px;
}

/* ---------- compare table ---------- */
.surface24240-compare{
  width: 100%;
  border-collapse: collapse;
  background: var(--surface24240-bg-elev);
  border: 1px solid var(--surface24240-line);
  border-radius: var(--surface24240-radius-md);
  overflow: hidden;
  font-size: 12px;
  margin: 10px 0 0;
}
.surface24240-compare th,
.surface24240-compare td{
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--surface24240-line);
  vertical-align: top;
}
.surface24240-compare thead th{
  background: #1a1610;
  color: var(--surface24240-text-strong);
  font-family: var(--surface24240-ff-head);
  font-size: 12px;
}
.surface24240-compare tbody tr:last-child td { border-bottom: 0; }
.surface24240-compare td:first-child {
  color: var(--surface24240-text-strong);
  font-weight: 600;
}

/* ---------- CTA block ---------- */
.surface24240-cta{
  background: linear-gradient(135deg, #1a130c 0%, #0e0a06 100%);
  border: 1px solid var(--surface24240-accent-deep);
  border-radius: var(--surface24240-radius-lg);
  padding: 16px;
  margin: 16px 0;
  text-align: center;
}
.surface24240-cta-title{
  font-size: 16px;
  color: var(--surface24240-text-strong);
  margin-bottom: 4px;
}
.surface24240-cta-sub{
  font-size: 12px;
  color: var(--surface24240-text-soft);
  margin-bottom: 12px;
}
.surface24240-cta-btns{
  display: inline-flex; gap: 8px; flex-wrap: wrap; justify-content: center;
}
.surface24240-cta-btn{
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 40px;
  padding: 0 18px;
  border-radius: 999px;
  font-family: var(--surface24240-ff-head);
  font-weight: 600; font-size: 14px;
  transition: background-color .18s ease, color .18s ease;
}
.surface24240-cta-btn--primary{
  background: var(--surface24240-accent);
  color: #fff;
  box-shadow: inset 0 0 0 1px var(--surface24240-accent-deep);
}
.surface24240-cta-btn--primary:active { background: var(--surface24240-accent-deep); }
.surface24240-cta-btn--ghost{
  background: transparent;
  color: var(--surface24240-text-strong);
  border: 1px solid var(--surface24240-line);
}
.surface24240-cta-btn--ghost:active { background: #1a1610; }

/* ---------- homepage extended footer ---------- */
.surface24240-extfoot{
  background: #0c0a07;
  border: 1px solid var(--surface24240-line);
  border-radius: var(--surface24240-radius-md);
  padding: 16px;
  margin: 20px 0 14px;
}
.surface24240-extfoot-head{
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 14px;
}
.surface24240-extfoot-head img{
  width: 30px; height: 30px;
  border-radius: var(--surface24240-radius-xs);
  border: 1px solid var(--surface24240-line);
}
.surface24240-extfoot-head strong{
  color: var(--surface24240-text-strong);
  font-family: var(--surface24240-ff-head);
  font-size: 15px;
}
.surface24240-extfoot-grid{
  display: grid; gap: 16px;
}
.surface24240-extfoot-block h3{
  font-size: 12px;
  color: var(--surface24240-text-strong);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.surface24240-extfoot-block p{
  font-size: 12px;
  color: var(--surface24240-text-soft);
  line-height: 1.6;
}
.surface24240-extfoot-links{
  list-style: none;
  display: grid; gap: 6px;
}
.surface24240-extfoot-links a{
  font-size: 12px;
  color: var(--surface24240-text);
  display: inline-flex; align-items: center; gap: 6px;
}
.surface24240-extfoot-links a::before{
  content: "›"; color: var(--surface24240-accent);
  font-weight: 700;
}
.surface24240-extfoot-promos{
  display: grid; gap: 6px;
}
.surface24240-extfoot-promos a{
  display: inline-flex; align-items: center; justify-content: space-between;
  gap: 8px;
  font-size: 12px;
  color: var(--surface24240-text);
  background: var(--surface24240-bg-elev);
  border: 1px solid var(--surface24240-line);
  border-radius: var(--surface24240-radius-sm);
  padding: 8px 10px;
}
.surface24240-extfoot-promos a span:last-child{
  color: var(--surface24240-accent);
  font-size: 11px;
}
.surface24240-extfoot-disclaimer{
  font-size: 11px;
  color: var(--surface24240-text-dim);
  padding-top: 12px;
  margin-top: 10px;
  border-top: 1px dashed var(--surface24240-line);
  line-height: 1.6;
}

/* ---------- common footer ---------- */
.surface24240-footer{
  text-align: center;
  padding: 16px 12px calc(var(--surface24240-bottomnav-h) + 14px);
  font-size: 11px;
  color: var(--surface24240-text-dim);
}
.surface24240-footer-nav{
  display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 12px;
  margin-bottom: 8px;
}
.surface24240-footer-nav a{
  color: var(--surface24240-text-soft);
  font-size: 11px;
}

/* ---------- mobile bottom nav ---------- */
.surface24240-bottomnav{
  position: fixed;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 100%; max-width: var(--surface24240-canvas-max);
  height: var(--surface24240-bottomnav-h);
  background: rgba(10, 10, 10, .96);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--surface24240-line);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  z-index: 90;
}
.surface24240-bottomnav-item{
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px;
  color: var(--surface24240-text-soft);
  font-size: 10px;
  padding: 6px 2px 4px;
  transition: color .15s ease, transform .15s ease;
  min-height: 44px;
}
.surface24240-bottomnav-item svg{
  width: 22px; height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.surface24240-bottomnav-item span{ line-height: 1; }
.surface24240-bottomnav-item:active { color: var(--surface24240-text); }
.surface24240-bottomnav-item.surface24240-bottomnav-active{
  color: var(--surface24240-text-strong);
  transform: translateY(-2px);
}
.surface24240-bottomnav-item.surface24240-bottomnav-active::before{
  content: "";
  position: absolute; top: 0; left: 50%;
  width: 24px; height: 2px; border-radius: 1px;
  background: var(--surface24240-accent);
  transform: translateX(-50%);
}

/* ---------- helpers ---------- */
.surface24240-visualhide{
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}
.surface24240-divider{
  height: 1px;
  background: var(--surface24240-line);
  margin: 16px 0;
  border: 0;
}

/* ---------- wide-screen behavior ---------- */
@media (min-width: 481px){
  body{
    box-shadow: 0 0 0 1px var(--surface24240-line);
  }
  .surface24240-bottomnav{
    box-shadow: 0 -1px 0 var(--surface24240-line);
  }
}

/* respect reduced motion */
@media (prefers-reduced-motion: reduce){
  * { scroll-behavior: auto !important; transition: none !important; }
}