/* ============================================================
   nbaji website - mobile-first interface stylesheet
   All classes and custom properties use the ui8dd28- prefix.
   Palette anchors: #CCCCCC #0000CD #778899 #2C3E50 #F5F5F5
   Design tone: bold compact headings + light body, small radii,
   image cards with bottom name strip, segmented action buttons.
   ============================================================ */

/* ---------- design tokens ---------- */
:root {
  --ui8dd28-bg: #2c3e50;
  --ui8dd28-bg-deep: #22303f;
  --ui8dd28-bg-outer: #1a2531;
  --ui8dd28-panel: #34495e;
  --ui8dd28-panel-hi: #3b5169;
  --ui8dd28-line: rgba(119, 136, 153, 0.38);
  --ui8dd28-line-soft: rgba(119, 136, 153, 0.2);
  --ui8dd28-accent: #0000cd;
  --ui8dd28-accent-hi: #3b3bf0;
  --ui8dd28-accent-dim: #15159e;
  --ui8dd28-onaccent: #f5f5f5;
  --ui8dd28-text: #f5f5f5;
  --ui8dd28-text-2: #cccccc;
  --ui8dd28-text-3: #9db0c6;
  --ui8dd28-r-s: 5px;
  --ui8dd28-r-m: 8px;
  --ui8dd28-side: 12px;
  --ui8dd28-topbar-h: 96px;
  --ui8dd28-tabbar-h: 58px;
  --ui8dd28-font: 'Hind Siliguri', 'Noto Sans Bengali', 'SolaimanLipi', -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
}

/* ---------- base ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ui8dd28-bg-outer);
  color: var(--ui8dd28-text);
  font-family: var(--ui8dd28-font);
  font-size: 14px;
  line-height: 1.75;
}
body.ui8dd28-noscroll { overflow: hidden; }
img { max-width: 100%; }
a { color: var(--ui8dd28-text-2); }
::selection { background: var(--ui8dd28-accent); color: #ffffff; }
:focus-visible { outline: 2px solid var(--ui8dd28-accent-hi); outline-offset: 2px; border-radius: 3px; }

.ui8dd28-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ui8dd28-accent);
  color: #ffffff;
  padding: 8px 14px;
  border-radius: 0 0 var(--ui8dd28-r-s) 0;
  z-index: 200;
  text-decoration: none;
  font-weight: 700;
}
.ui8dd28-skip:focus { left: 0; }

/* ---------- centered phone canvas ---------- */
.ui8dd28-canvas {
  position: relative;
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  background: linear-gradient(180deg, #31435c 0%, var(--ui8dd28-bg) 40%, #263548 100%);
  box-shadow: 0 0 48px rgba(0, 0, 0, 0.5);
  overflow-x: clip;
}
.ui8dd28-main {
  padding: calc(var(--ui8dd28-topbar-h) + 10px) 0 calc(var(--ui8dd28-tabbar-h) + 26px + env(safe-area-inset-bottom));
}

/* ---------- shared typography ---------- */
.ui8dd28-main h1 {
  font-size: clamp(21px, 6vw, 26px);
  line-height: 1.4;
  margin: 0 0 8px;
  font-weight: 800;
  letter-spacing: 0.2px;
}
.ui8dd28-main h2 {
  font-size: 17px;
  line-height: 1.45;
  margin: 0 0 8px;
  font-weight: 700;
}
.ui8dd28-main h3 {
  font-size: 14.5px;
  line-height: 1.5;
  margin: 0 0 4px;
  font-weight: 700;
  color: var(--ui8dd28-text);
}
.ui8dd28-p {
  margin: 0 0 10px;
  color: var(--ui8dd28-text-2);
}
.ui8dd28-p strong { color: var(--ui8dd28-text); }

/* ---------- fixed top bar: centered identity + action strip ---------- */
.ui8dd28-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  margin: 0 auto;
  width: 100%;
  max-width: 480px;
  z-index: 60;
  background: rgba(31, 44, 59, 0.97);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  border-bottom: 1px solid var(--ui8dd28-line);
}
.ui8dd28-identity {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 8px;
}
.ui8dd28-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  min-height: 44px;
}
.ui8dd28-brand img {
  width: 34px;
  height: 34px;
  border-radius: var(--ui8dd28-r-m);
  border: 1px solid var(--ui8dd28-line);
  display: block;
  object-fit: cover;
}
.ui8dd28-brand b {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--ui8dd28-text);
}
.ui8dd28-brand i {
  font-style: normal;
  font-size: 10px;
  font-weight: 600;
  color: var(--ui8dd28-text-3);
  border-left: 1px solid var(--ui8dd28-line);
  padding-left: 8px;
  margin-left: 2px;
  letter-spacing: 1.5px;
}
.ui8dd28-burger {
  position: absolute;
  right: 6px;
  top: 4px;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  border-radius: var(--ui8dd28-r-s);
  color: var(--ui8dd28-text-2);
  cursor: pointer;
  transition: color 0.18s ease, background 0.18s ease;
}
.ui8dd28-burger:hover,
.ui8dd28-burger:focus-visible { color: #ffffff; background: rgba(119, 136, 153, 0.16); }
.ui8dd28-burger svg { width: 23px; height: 23px; display: block; }

/* segmented action strip under the identity bar */
.ui8dd28-duo {
  display: flex;
  margin: 0 var(--ui8dd28-side) 8px;
  border: 1px solid var(--ui8dd28-line);
  border-radius: var(--ui8dd28-r-m);
  overflow: hidden;
}
.ui8dd28-duo > * { flex: 1; }
.ui8dd28-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 40px;
  padding: 7px 10px;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  border: 0;
  transition: background 0.18s ease, color 0.18s ease, filter 0.18s ease;
}
.ui8dd28-btn-primary {
  background: linear-gradient(180deg, var(--ui8dd28-accent-hi) 0%, var(--ui8dd28-accent) 100%);
  color: var(--ui8dd28-onaccent);
}
.ui8dd28-btn-primary:hover { filter: brightness(1.12); }
.ui8dd28-btn-ghost {
  background: rgba(119, 136, 153, 0.12);
  color: var(--ui8dd28-text);
  border-left: 1px solid var(--ui8dd28-line);
}
.ui8dd28-btn-ghost:hover { background: rgba(119, 136, 153, 0.24); }

/* ---------- stacked menu overlay ---------- */
.ui8dd28-shade {
  position: fixed;
  inset: 0;
  margin: 0 auto;
  max-width: 480px;
  background: rgba(8, 14, 22, 0.66);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s ease, visibility 0.22s ease;
  z-index: 70;
}
.ui8dd28-shade-on { opacity: 1; visibility: visible; }
.ui8dd28-drawer {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: 0 auto;
  max-width: 480px;
  width: 100%;
  background: #26364a;
  border-right: 1px solid var(--ui8dd28-line);
  z-index: 80;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transform: translateX(-102%);
  transition: transform 0.26s ease;
}
.ui8dd28-drawer-on { transform: translateX(0); }
.ui8dd28-drawer-head {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px var(--ui8dd28-side);
  background: #2b3d52;
  border-bottom: 1px solid var(--ui8dd28-line);
}
.ui8dd28-drawer-head img { width: 30px; height: 30px; border-radius: 6px; }
.ui8dd28-drawer-head b { font-size: 16px; color: var(--ui8dd28-text); }
.ui8dd28-drawer-close {
  margin-left: auto;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  border-radius: var(--ui8dd28-r-s);
  color: var(--ui8dd28-text-2);
  cursor: pointer;
  transition: color 0.18s ease, background 0.18s ease;
}
.ui8dd28-drawer-close:hover { color: #ffffff; background: rgba(119, 136, 153, 0.16); }
.ui8dd28-drawer-close svg { width: 20px; height: 20px; }
.ui8dd28-navlist { list-style: none; margin: 0; padding: 8px 0 14px; }
.ui8dd28-navlist li { margin: 0; }
.ui8dd28-navlist a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 8px var(--ui8dd28-side);
  text-decoration: none;
  color: var(--ui8dd28-text-2);
  font-size: 14px;
  font-weight: 600;
  border-left: 3px solid transparent;
  transition: background 0.16s ease, color 0.16s ease;
}
.ui8dd28-navlist a span {
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--ui8dd28-line);
  flex: none;
  transition: background 0.16s ease;
}
.ui8dd28-navlist a:hover,
.ui8dd28-navlist a:focus-visible {
  background: rgba(119, 136, 153, 0.14);
  color: #ffffff;
}
.ui8dd28-navlist .ui8dd28-nav-on {
  color: #ffffff;
  background: rgba(0, 0, 205, 0.18);
  border-left-color: var(--ui8dd28-accent-hi);
}
.ui8dd28-navlist .ui8dd28-nav-on span { background: var(--ui8dd28-accent-hi); }
.ui8dd28-drawer-cta { padding: 6px var(--ui8dd28-side) 22px; margin-top: auto; }

/* ---------- hero ---------- */
.ui8dd28-hero { padding: 4px var(--ui8dd28-side) 2px; }
.ui8dd28-lede { font-size: 13.5px; color: var(--ui8dd28-text-2); }
.ui8dd28-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 12px; }
.ui8dd28-chip {
  font-size: 11px;
  font-weight: 600;
  color: var(--ui8dd28-text-2);
  border: 1px solid var(--ui8dd28-line);
  background: rgba(52, 73, 94, 0.55);
  border-radius: 999px;
  padding: 3px 11px;
  white-space: nowrap;
}
.ui8dd28-hero-duo { margin: 2px 0 6px; }

/* ---------- banner carousel ---------- */
.ui8dd28-stage {
  position: relative;
  margin: 12px var(--ui8dd28-side) 4px;
  border: 1px solid var(--ui8dd28-line);
  border-radius: var(--ui8dd28-r-m);
  overflow: hidden;
  background: var(--ui8dd28-bg-deep);
}
.ui8dd28-viewport { overflow: hidden; }
.ui8dd28-track {
  display: flex;
  transition: transform 0.4s ease;
  -webkit-overflow-scrolling: touch;
}
.ui8dd28-slide {
  flex: 0 0 100%;
  position: relative;
  display: block;
  text-decoration: none;
}
.ui8dd28-slide img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  display: block;
}
.ui8dd28-slide em {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  font-style: normal;
  font-size: 12px;
  font-weight: 600;
  color: #f5f5f5;
  padding: 18px 12px 7px;
  background: linear-gradient(180deg, rgba(15, 23, 34, 0) 0%, rgba(15, 23, 34, 0.88) 78%);
}
.ui8dd28-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: var(--ui8dd28-r-s);
  background: rgba(20, 30, 43, 0.55);
  color: #f5f5f5;
  cursor: pointer;
  transition: background 0.18s ease;
}
.ui8dd28-arrow:hover { background: rgba(0, 0, 205, 0.72); }
.ui8dd28-arrow svg { width: 16px; height: 16px; }
.ui8dd28-prev { left: 6px; }
.ui8dd28-next { right: 6px; }
.ui8dd28-dotrow {
  display: flex;
  justify-content: center;
  gap: 7px;
  margin: 9px 0 2px;
}
.ui8dd28-dot {
  width: 20px;
  height: 6px;
  border: 0;
  border-radius: 3px;
  background: var(--ui8dd28-line);
  cursor: pointer;
  padding: 0;
  transition: background 0.18s ease, width 0.18s ease;
}
.ui8dd28-dot-on { background: var(--ui8dd28-accent-hi); width: 30px; }

/* ---------- game lobby ---------- */
.ui8dd28-lobby { padding: 4px var(--ui8dd28-side) 2px; }
.ui8dd28-cat { margin: 0 0 18px; }
.ui8dd28-cat-head {
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--ui8dd28-line-soft);
  padding: 8px 2px;
  margin-bottom: 8px;
}
.ui8dd28-cat-head h3 { margin: 0; font-size: 15px; }
.ui8dd28-count {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--ui8dd28-text-3);
  border: 1px solid var(--ui8dd28-line);
  border-radius: 999px;
  padding: 1px 8px;
  white-space: nowrap;
}
.ui8dd28-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px 6px;
}
.ui8dd28-card {
  display: block;
  background: var(--ui8dd28-panel);
  border: 1px solid var(--ui8dd28-line-soft);
  border-radius: var(--ui8dd28-r-s);
  overflow: hidden;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
  -webkit-tap-highlight-color: transparent;
}
.ui8dd28-card:active {
  transform: translateY(-2px);
  border-color: var(--ui8dd28-accent-hi);
}
@media (hover: hover) {
  .ui8dd28-card:hover {
    transform: translateY(-2px);
    border-color: var(--ui8dd28-accent-hi);
    background: var(--ui8dd28-panel-hi);
  }
}
.ui8dd28-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  background: var(--ui8dd28-bg-deep);
}
.ui8dd28-card b {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 34px;
  padding: 4px 5px 6px;
  font-size: 11px;
  line-height: 1.4;
  font-weight: 600;
  text-align: center;
  color: var(--ui8dd28-text-2);
}
.ui8dd28-cat-note {
  margin: 0 0 9px;
  font-size: 12.5px;
  color: var(--ui8dd28-text-3);
}
.ui8dd28-related {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 9px 0 0;
  font-size: 11.5px;
  color: var(--ui8dd28-text-3);
}
.ui8dd28-related a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 3px 10px;
  border: 1px solid var(--ui8dd28-line-soft);
  border-radius: 999px;
  text-decoration: none;
  color: var(--ui8dd28-text-2);
  font-size: 11.5px;
  font-weight: 600;
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}
.ui8dd28-related a:hover {
  color: #ffffff;
  border-color: var(--ui8dd28-accent-hi);
  background: rgba(0, 0, 205, 0.18);
}

/* ---------- content modules ---------- */
.ui8dd28-mod {
  margin: 18px var(--ui8dd28-side);
  background: var(--ui8dd28-panel);
  border: 1px solid var(--ui8dd28-line-soft);
  border-radius: var(--ui8dd28-r-m);
  padding: 15px 13px 17px;
}
.ui8dd28-mod > h2 {
  padding-left: 10px;
  border-left: 3px solid var(--ui8dd28-accent-hi);
}

/* scenario branches (security) */
.ui8dd28-branch {
  border-left: 2px solid var(--ui8dd28-line);
  padding: 2px 0 2px 11px;
  margin: 12px 0;
}
.ui8dd28-branch h3 { margin-bottom: 5px; }
.ui8dd28-branch ul {
  margin: 0;
  padding-left: 17px;
  color: var(--ui8dd28-text-2);
  font-size: 13px;
}
.ui8dd28-branch li { margin: 3px 0; }
.ui8dd28-after {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--ui8dd28-text-2);
  border-top: 1px dashed var(--ui8dd28-line-soft);
  padding-top: 11px;
}

/* offer tiles (promotions) */
.ui8dd28-offers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 11px;
}
.ui8dd28-offer {
  background: var(--ui8dd28-bg-deep);
  border: 1px solid var(--ui8dd28-line-soft);
  border-radius: var(--ui8dd28-r-s);
  padding: 10px 10px 11px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ui8dd28-offer b { font-size: 13px; color: var(--ui8dd28-text); }
.ui8dd28-offer p {
  margin: 0;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--ui8dd28-text-3);
}
.ui8dd28-offer .ui8dd28-btn { margin-top: auto; min-height: 36px; font-size: 12.5px; }

/* numbered steps (how to play) */
.ui8dd28-steps {
  list-style: none;
  counter-reset: ui8dd28-step;
  margin: 12px 0 0;
  padding: 0;
}
.ui8dd28-steps li {
  counter-increment: ui8dd28-step;
  position: relative;
  padding: 0 0 14px 40px;
  font-size: 13px;
  color: var(--ui8dd28-text-2);
}
.ui8dd28-steps li::before {
  content: counter(ui8dd28-step);
  position: absolute;
  left: 0;
  top: 1px;
  width: 27px;
  height: 27px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--ui8dd28-accent-hi), var(--ui8dd28-accent));
  color: #ffffff;
  font-size: 13px;
  font-weight: 800;
}
.ui8dd28-steps li::after {
  content: '';
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: 2px;
  width: 1px;
  background: var(--ui8dd28-line-soft);
}
.ui8dd28-steps li:last-child { padding-bottom: 2px; }
.ui8dd28-steps li:last-child::after { display: none; }
.ui8dd28-steps b { display: block; color: var(--ui8dd28-text); font-size: 13.5px; }

/* trick list */
.ui8dd28-tricks {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}
.ui8dd28-tricks li {
  position: relative;
  margin: 0 0 9px;
  padding: 8px 10px 8px 34px;
  background: var(--ui8dd28-bg-deep);
  border: 1px solid var(--ui8dd28-line-soft);
  border-radius: var(--ui8dd28-r-s);
  font-size: 12.5px;
  color: var(--ui8dd28-text-2);
}
.ui8dd28-tricks li::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 15px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  transform: rotate(45deg);
  background: var(--ui8dd28-accent-hi);
}
.ui8dd28-tricks b { color: var(--ui8dd28-text); }

/* comparison matrix */
.ui8dd28-matrix {
  margin-top: 12px;
  border: 1px solid var(--ui8dd28-line-soft);
  border-radius: var(--ui8dd28-r-s);
  overflow: hidden;
}
.ui8dd28-mrow {
  display: grid;
  grid-template-columns: 104px 1fr;
  border-bottom: 1px solid var(--ui8dd28-line-soft);
}
.ui8dd28-mrow:last-child { border-bottom: 0; }
.ui8dd28-mrow:nth-child(odd) { background: rgba(34, 48, 63, 0.5); }
.ui8dd28-mrow dt {
  padding: 9px 10px;
  font-size: 12px;
  font-weight: 700;
  color: var(--ui8dd28-text);
  border-right: 1px solid var(--ui8dd28-line-soft);
}
.ui8dd28-mrow dd {
  margin: 0;
  padding: 9px 10px;
  font-size: 12px;
  color: var(--ui8dd28-text-2);
}

/* ---------- homepage extended footer ---------- */
.ui8dd28-xfoot {
  margin: 22px var(--ui8dd28-side) 4px;
  border-top: 1px dashed var(--ui8dd28-line);
  padding-top: 15px;
}
.ui8dd28-xfoot h2 { font-size: 15.5px; }
.ui8dd28-xfoot h3 {
  font-size: 12px;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--ui8dd28-text-3);
  margin: 16px 0 8px;
}
.ui8dd28-xfoot-brand { font-size: 12.5px; color: var(--ui8dd28-text-2); margin: 0; }
.ui8dd28-promorow {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.ui8dd28-promorow .ui8dd28-btn { min-height: 44px; }
.ui8dd28-dir {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.ui8dd28-dir a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 4px 6px;
  border: 1px solid var(--ui8dd28-line-soft);
  border-radius: var(--ui8dd28-r-s);
  background: rgba(34, 48, 63, 0.45);
  text-decoration: none;
  text-align: center;
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ui8dd28-text-2);
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}
.ui8dd28-dir a:hover {
  color: #ffffff;
  border-color: var(--ui8dd28-accent-hi);
  background: rgba(0, 0, 205, 0.2);
}
.ui8dd28-note {
  margin: 14px 0 0;
  padding: 10px 11px;
  border: 1px solid var(--ui8dd28-line-soft);
  border-left: 3px solid var(--ui8dd28-accent);
  border-radius: var(--ui8dd28-r-s);
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--ui8dd28-text-3);
}

/* ---------- common footer ---------- */
.ui8dd28-foot {
  text-align: center;
  padding: 16px var(--ui8dd28-side) 6px;
  font-size: 11.5px;
  color: var(--ui8dd28-text-3);
}
.ui8dd28-foot p { margin: 0 0 4px; }
.ui8dd28-foot b { color: var(--ui8dd28-text-2); font-weight: 700; }

/* ---------- fixed bottom tab bar ---------- */
.ui8dd28-tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  margin: 0 auto;
  max-width: 480px;
  z-index: 60;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  background: rgba(28, 40, 54, 0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid var(--ui8dd28-line);
  padding-bottom: env(safe-area-inset-bottom);
}
.ui8dd28-tab {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: var(--ui8dd28-tabbar-h);
  padding: 4px 2px 6px;
  background: none;
  border: 0;
  font-family: inherit;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ui8dd28-text-3);
  text-decoration: none;
  cursor: pointer;
  transition: color 0.18s ease;
  -webkit-tap-highlight-color: transparent;
}
.ui8dd28-tab svg { width: 22px; height: 22px; display: block; }
.ui8dd28-tab:hover { color: var(--ui8dd28-text-2); }
.ui8dd28-tab-on { color: #ffffff; }
.ui8dd28-tab-on::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--ui8dd28-accent-hi);
}
.ui8dd28-tab-alt { color: var(--ui8dd28-accent-hi); }

/* ---------- canvas width tuning ---------- */
@media (min-width: 375px) {
  .ui8dd28-grid { gap: 9px 7px; }
  .ui8dd28-dir { gap: 7px; }
}
@media (min-width: 400px) {
  .ui8dd28-grid { grid-template-columns: repeat(5, 1fr); }
}
@media (min-width: 430px) {
  .ui8dd28-main h1 { font-size: 26px; }
  .ui8dd28-lede { font-size: 14px; }
  .ui8dd28-offers { gap: 10px; }
}
@media (max-width: 359px) {
  .ui8dd28-dir { grid-template-columns: repeat(2, 1fr); }
  .ui8dd28-brand i { display: none; }
}

/* ---------- help-page reading layouts ---------- */
.ui8dd28-help-hero {
  margin: 4px var(--ui8dd28-side) 14px;
  padding: 16px 14px 17px;
  border: 1px solid var(--ui8dd28-line);
  border-radius: var(--ui8dd28-r-m);
  background: linear-gradient(135deg, rgba(0, 0, 205, 0.22), rgba(52, 73, 94, 0.92));
}
.ui8dd28-help-hero p { margin: 8px 0 0; color: var(--ui8dd28-text-2); }
.ui8dd28-signal {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-top: 13px;
}
.ui8dd28-signal span {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5px;
  border: 1px solid var(--ui8dd28-line-soft);
  border-radius: var(--ui8dd28-r-s);
  background: rgba(20, 30, 43, 0.42);
  color: var(--ui8dd28-text-2);
  font-size: 11px;
  line-height: 1.35;
  text-align: center;
}
.ui8dd28-qa-list { margin: 10px 0 0; }
.ui8dd28-qa-list div { padding: 10px 0; border-bottom: 1px solid var(--ui8dd28-line-soft); }
.ui8dd28-qa-list div:last-child { border-bottom: 0; padding-bottom: 0; }
.ui8dd28-qa-list dt { color: var(--ui8dd28-text); font-weight: 700; }
.ui8dd28-qa-list dd { margin: 4px 0 0; color: var(--ui8dd28-text-2); font-size: 13px; }
.ui8dd28-device-grid { display: grid; gap: 7px; margin-top: 11px; }
.ui8dd28-device-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 8px;
  padding: 9px 10px;
  border-left: 3px solid var(--ui8dd28-accent-hi);
  background: rgba(34, 48, 63, 0.56);
  border-radius: 0 var(--ui8dd28-r-s) var(--ui8dd28-r-s) 0;
}
.ui8dd28-device-row b { color: var(--ui8dd28-text); font-size: 12px; }
.ui8dd28-device-row span { color: var(--ui8dd28-text-2); font-size: 12px; line-height: 1.55; }
.ui8dd28-callout {
  margin: 11px 0 0;
  padding: 10px 11px;
  border-radius: var(--ui8dd28-r-s);
  background: rgba(0, 0, 205, 0.16);
  border: 1px solid rgba(59, 59, 240, 0.5);
  color: var(--ui8dd28-text-2);
  font-size: 12.5px;
}
.ui8dd28-proof-list { margin: 11px 0 0; padding-left: 21px; color: var(--ui8dd28-text-2); }
.ui8dd28-proof-list li { margin: 6px 0; }
.ui8dd28-proof-list strong { color: var(--ui8dd28-text); }
.ui8dd28-actionline { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.ui8dd28-actionline .ui8dd28-btn { min-height: 44px; flex: 1 1 130px; }
.ui8dd28-safety-flag {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 9px 0;
  padding: 10px 11px;
  border: 1px solid var(--ui8dd28-line-soft);
  border-left: 4px solid var(--ui8dd28-accent-hi);
  border-radius: var(--ui8dd28-r-s);
  background: rgba(34, 48, 63, 0.62);
}
.ui8dd28-safety-flag b { display: block; color: var(--ui8dd28-text); font-size: 13px; }
.ui8dd28-safety-flag span { color: var(--ui8dd28-text-2); font-size: 12.5px; line-height: 1.55; }
.ui8dd28-checks { list-style: none; margin: 12px 0 0; padding: 0; }
.ui8dd28-checks li { position: relative; padding: 8px 9px 8px 31px; margin: 6px 0; background: var(--ui8dd28-bg-deep); border-radius: var(--ui8dd28-r-s); color: var(--ui8dd28-text-2); font-size: 12.5px; }
.ui8dd28-checks li::before { content: '✓'; position: absolute; left: 10px; top: 7px; color: #ffffff; font-weight: 800; }
.ui8dd28-choice { display: grid; gap: 7px; margin-top: 11px; }
.ui8dd28-choice a { display: block; padding: 9px 10px; border: 1px solid var(--ui8dd28-line-soft); border-radius: var(--ui8dd28-r-s); color: var(--ui8dd28-text-2); text-decoration: none; background: rgba(34, 48, 63, 0.5); }
.ui8dd28-choice a strong { color: var(--ui8dd28-text); }
.ui8dd28-choice a:hover { border-color: var(--ui8dd28-accent-hi); background: rgba(0, 0, 205, 0.15); }

/* ---------- motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}