/* ==========================================================================
   hazy game — interface-responsive-920215.css
   Mobile-first base stylesheet for hazygame.click (bn-BD audience)
   Class / variable prefix : shell2152b-
   Canvas                  : 320–430px phone layout, centered on wide screens
   Palette                 : #BAE1FF (accent) / #CED4DA (body text) / #1C2833 (base)
   Direction               : mono accents + regular body text, small-medium radii,
                             pure-image game cards with short captions,
                             fact-summary-first rhythm, sliding focus indicators,
                             square high-contrast CTAs.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  --shell2152b-deep: #1C2833;            /* base background */
  --shell2152b-deeper: #141E27;          /* page gutter background */
  --shell2152b-panel: #223240;           /* raised surface */
  --shell2152b-panel2: #1A2734;          /* sunken surface */
  --shell2152b-bright: #BAE1FF;          /* accent / headings / CTA fill */
  --shell2152b-soft: #CED4DA;            /* body text */
  --shell2152b-mute: #8CA0B0;            /* secondary text */
  --shell2152b-ink: #101820;             /* text on accent fills */
  --shell2152b-line: rgba(186, 225, 255, 0.16);
  --shell2152b-line2: rgba(206, 212, 218, 0.10);
  --shell2152b-glow: rgba(186, 225, 255, 0.07);
  --shell2152b-mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  --shell2152b-sans: "Noto Sans Bengali", "Hind Siliguri", "SolaimanLipi", -apple-system, "Segoe UI", system-ui, sans-serif;
  --shell2152b-r-xs: 3px;
  --shell2152b-r-s: 5px;
  --shell2152b-r-m: 8px;
  --shell2152b-r-l: 11px;
  --shell2152b-topbar-h: 56px;
  --shell2152b-tabs-h: 44px;
  --shell2152b-bnav-h: 64px;
  --shell2152b-pad: 14px;
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--shell2152b-deeper);
  color: var(--shell2152b-soft);
  font-family: var(--shell2152b-sans);
  font-size: 14px;
  line-height: 1.75;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: var(--shell2152b-bright); text-decoration: none; }
a:hover { text-decoration: underline; }

button {
  font-family: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

.shell2152b-page :focus-visible {
  outline: 2px solid var(--shell2152b-bright);
  outline-offset: 2px;
  border-radius: var(--shell2152b-r-xs);
}

::selection { background: rgba(186, 225, 255, 0.28); color: #FFFFFF; }

/* Phone canvas: everything lives inside a 430px column */
.shell2152b-page {
  position: relative;
  max-width: 430px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--shell2152b-deep);
  box-shadow: 0 0 0 1px rgba(186, 225, 255, 0.07);
  overflow-x: clip;
}

.shell2152b-main {
  padding: calc(var(--shell2152b-topbar-h) + var(--shell2152b-tabs-h) + 14px) var(--shell2152b-pad) calc(var(--shell2152b-bnav-h) + 34px + env(safe-area-inset-bottom, 0px));
}

/* Screen-reader only helper */
.shell2152b-sr {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Mono accent utility (kickers, counters, tags) */
.shell2152b-mono {
  font-family: var(--shell2152b-mono);
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   3. Fixed top bar — tab-style header
   -------------------------------------------------------------------------- */
.shell2152b-topbar {
  position: fixed;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  z-index: 60;
  background: rgba(20, 30, 39, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--shell2152b-line);
}

.shell2152b-brandrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: var(--shell2152b-topbar-h);
  padding: 6px 10px 4px;
}

.shell2152b-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.shell2152b-logo {
  width: 34px;
  height: 34px;
  border-radius: var(--shell2152b-r-s);
  border: 1px solid var(--shell2152b-line);
  object-fit: cover;
  flex: 0 0 auto;
}

.shell2152b-brandname {
  font-family: var(--shell2152b-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #FFFFFF;
  white-space: nowrap;
}

.shell2152b-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

/* Square, high-contrast CTAs */
.shell2152b-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: var(--shell2152b-r-xs); /* near-square corners by design */
  font-family: var(--shell2152b-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: transform 0.12s ease, background 0.16s ease, color 0.16s ease;
}

.shell2152b-btn--solid {
  background: var(--shell2152b-bright);
  color: var(--shell2152b-ink);
  box-shadow: 0 0 0 1px var(--shell2152b-bright);
}

.shell2152b-btn--ghost {
  background: transparent;
  color: var(--shell2152b-bright);
  box-shadow: inset 0 0 0 1px rgba(186, 225, 255, 0.6);
}

.shell2152b-btn--wide { width: 100%; }

.shell2152b-btn:active { transform: scale(0.96); }

.shell2152b-menubtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--shell2152b-r-s);
  color: var(--shell2152b-bright);
  transition: transform 0.12s ease, background 0.16s ease;
}

.shell2152b-menubtn:active { transform: scale(0.92); background: var(--shell2152b-glow); }

.shell2152b-menubtn svg { width: 22px; height: 22px; }

/* Category tab strip with sliding focus indicator */
.shell2152b-tabs {
  position: relative;
  display: flex;
  gap: 2px;
  overflow-x: auto;
  padding: 2px 10px 6px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.shell2152b-tabs::-webkit-scrollbar { display: none; }

.shell2152b-tab {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 0 12px;
  font-size: 12.5px;
  color: var(--shell2152b-mute);
  border-radius: var(--shell2152b-r-s);
  white-space: nowrap;
  transition: color 0.18s ease, transform 0.12s ease;
}

.shell2152b-tab[aria-selected="true"] { color: #FFFFFF; }

.shell2152b-tab:active { transform: scale(0.94); }

.shell2152b-tabind {
  position: absolute;
  left: 10px;
  bottom: 2px;
  height: 3px;
  width: 34px;
  background: var(--shell2152b-bright);
  border-radius: 2px;
  transition: left 0.26s cubic-bezier(0.4, 0, 0.2, 1), width 0.26s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   4. Sectioned menu page (full-canvas overlay)
   -------------------------------------------------------------------------- */
.shell2152b-menu {
  position: fixed;
  inset: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  z-index: 90;
  background: var(--shell2152b-deeper);
  overflow-y: auto;
  display: none;
}

.shell2152b-menu[data-open="1"] {
  display: block;
  animation: shell2152b-menuin 0.22s ease both;
}

@keyframes shell2152b-menuin {
  from { opacity: 0; transform: translate(-50%, -10px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

.shell2152b-menuhead {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: var(--shell2152b-topbar-h);
  padding: 8px 12px;
  background: rgba(20, 30, 39, 0.98);
  border-bottom: 1px solid var(--shell2152b-line);
  z-index: 2;
}

.shell2152b-menuclose {
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--shell2152b-r-s);
  color: var(--shell2152b-soft);
  transition: transform 0.12s ease, background 0.16s ease;
}

.shell2152b-menuclose:active { transform: scale(0.92); background: var(--shell2152b-glow); }
.shell2152b-menuclose svg { width: 20px; height: 20px; }

.shell2152b-menuctas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 14px 12px 6px;
}

.shell2152b-menusec { padding: 14px 12px 4px; }

.shell2152b-menulabel {
  margin: 0 0 6px;
  font-family: var(--shell2152b-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--shell2152b-bright);
  opacity: 0.85;
}

.shell2152b-menulink {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 48px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--shell2152b-line2);
  color: var(--shell2152b-soft);
  font-size: 14px;
  border-radius: var(--shell2152b-r-xs);
  transition: background 0.16s ease, color 0.16s ease;
}

.shell2152b-menulink:hover { text-decoration: none; color: #FFFFFF; background: var(--shell2152b-glow); }

.shell2152b-menulink .shell2152b-arrow {
  font-family: var(--shell2152b-mono);
  font-size: 12px;
  color: var(--shell2152b-mute);
}

/* --------------------------------------------------------------------------
   5. Hero
   -------------------------------------------------------------------------- */
.shell2152b-hero { padding: 6px 0 4px; }

.shell2152b-kicker {
  margin: 0 0 8px;
  font-family: var(--shell2152b-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--shell2152b-bright);
  opacity: 0.9;
}

.shell2152b-h1 {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.4;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 0.01em;
}

.shell2152b-herotext { margin: 0 0 14px; font-size: 13.5px; color: var(--shell2152b-soft); }

/* Promo carousel */
.shell2152b-caro {
  position: relative;
  border: 1px solid var(--shell2152b-line);
  border-radius: var(--shell2152b-r-l);
  overflow: hidden;
  background: var(--shell2152b-panel2);
}

.shell2152b-carotrack {
  display: flex;
  transition: transform 0.42s cubic-bezier(0.4, 0, 0.2, 1);
  touch-action: pan-y;
}

.shell2152b-slide {
  flex: 0 0 100%;
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 7;
  text-align: left;
}

.shell2152b-slide img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.shell2152b-slidecap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 22px 12px 9px;
  background: linear-gradient(180deg, rgba(16, 24, 32, 0) 0%, rgba(16, 24, 32, 0.88) 78%);
  color: #FFFFFF;
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.45;
}

.shell2152b-slidecap .shell2152b-mono {
  display: block;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--shell2152b-bright);
  margin-bottom: 2px;
}

.shell2152b-slide:active img { transform: scale(0.985); }
.shell2152b-slide img { transition: transform 0.2s ease; }

.shell2152b-carodots {
  position: absolute;
  right: 10px; bottom: 8px;
  display: flex;
  gap: 5px;
  z-index: 2;
}

.shell2152b-dot {
  width: 7px; height: 7px;
  padding: 0;
  border-radius: 2px;
  background: rgba(206, 212, 218, 0.45);
  transition: width 0.24s ease, background 0.24s ease;
}

.shell2152b-dot[aria-current="true"] {
  width: 20px;
  background: var(--shell2152b-bright);
}

/* Fact strip — quick numbers under the hero */
.shell2152b-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin: 14px 0 4px;
}

.shell2152b-fact {
  border: 1px solid var(--shell2152b-line2);
  border-radius: var(--shell2152b-r-m);
  background: var(--shell2152b-panel2);
  padding: 9px 6px 7px;
  text-align: center;
}

.shell2152b-fact b {
  display: block;
  font-family: var(--shell2152b-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--shell2152b-bright);
  line-height: 1.2;
}

.shell2152b-fact span {
  display: block;
  font-size: 10px;
  color: var(--shell2152b-mute);
  line-height: 1.5;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   6. Game sections
   -------------------------------------------------------------------------- */
.shell2152b-sec { padding: 22px 0 4px; }

.shell2152b-secscroll { scroll-margin-top: calc(var(--shell2152b-topbar-h) + var(--shell2152b-tabs-h) + 10px); }

.shell2152b-sechead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.shell2152b-h2 {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.5;
  font-weight: 800;
  color: #FFFFFF;
}

.shell2152b-count {
  flex: 0 0 auto;
  font-family: var(--shell2152b-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--shell2152b-bright);
  border: 1px solid var(--shell2152b-line);
  border-radius: var(--shell2152b-r-xs);
  padding: 3px 7px;
  background: var(--shell2152b-glow);
}

.shell2152b-secintro {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--shell2152b-soft);
}

.shell2152b-secintro a { text-decoration: underline; text-underline-offset: 3px; }

/* Pure-image game cards, short caption under the art */
.shell2152b-ggrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px 8px;
}

.shell2152b-gcard {
  display: block;
  text-align: center;
  border-radius: var(--shell2152b-r-m);
  padding: 0;
  min-height: 44px;
}

.shell2152b-gimg {
  display: block;
  aspect-ratio: 1 / 1;
  border-radius: var(--shell2152b-r-m);
  overflow: hidden;
  border: 1px solid var(--shell2152b-line);
  background: var(--shell2152b-panel);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.28);
  transition: transform 0.14s ease, border-color 0.18s ease;
}

.shell2152b-gimg img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.shell2152b-gcard:active .shell2152b-gimg {
  transform: scale(0.93);
  border-color: rgba(186, 225, 255, 0.5);
}

.shell2152b-gname {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 6px;
  font-size: 10.5px;
  line-height: 1.45;
  color: var(--shell2152b-soft);
  min-height: 30px;
}

/* --------------------------------------------------------------------------
   7. Content modules (fact summary first, expanded detail after)
   -------------------------------------------------------------------------- */
.shell2152b-mod {
  margin-top: 26px;
  border: 1px solid var(--shell2152b-line2);
  border-radius: var(--shell2152b-r-l);
  background: linear-gradient(180deg, var(--shell2152b-panel2) 0%, rgba(26, 39, 52, 0.4) 100%);
  padding: 16px 14px 14px;
}

.shell2152b-factline {
  border: 1px solid var(--shell2152b-line);
  border-left: 3px solid var(--shell2152b-bright);
  border-radius: var(--shell2152b-r-s);
  background: var(--shell2152b-glow);
  padding: 10px 12px;
  margin: 10px 0 12px;
  font-size: 13px;
  line-height: 1.7;
  color: #FFFFFF;
}

.shell2152b-mod p { margin: 0 0 10px; font-size: 13px; }

/* Security checklist rows */
.shell2152b-check { display: grid; gap: 8px; margin: 4px 0 12px; }

.shell2152b-checkrow {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 9px 10px;
  border: 1px solid var(--shell2152b-line2);
  border-radius: var(--shell2152b-r-m);
  background: rgba(34, 50, 64, 0.5);
  font-size: 12.5px;
  line-height: 1.65;
}

.shell2152b-checkrow b { color: #FFFFFF; font-weight: 700; }

.shell2152b-checkrow svg {
  flex: 0 0 auto;
  width: 18px; height: 18px;
  margin-top: 3px;
  color: var(--shell2152b-bright);
}

/* Numbered steps */
.shell2152b-steps { counter-reset: shell2152b-step; display: grid; gap: 8px; margin: 4px 0 12px; }

.shell2152b-step {
  counter-increment: shell2152b-step;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 9px 10px;
  border-radius: var(--shell2152b-r-m);
  background: rgba(34, 50, 64, 0.5);
  border: 1px solid var(--shell2152b-line2);
  font-size: 12.5px;
  line-height: 1.65;
}

.shell2152b-step::before {
  content: counter(shell2152b-step, decimal-leading-zero);
  font-family: var(--shell2152b-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--shell2152b-ink);
  background: var(--shell2152b-bright);
  border-radius: var(--shell2152b-r-xs);
  min-width: 26px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

/* Feature comparison rows */
.shell2152b-feats { display: grid; gap: 0; margin: 4px 0 12px; border: 1px solid var(--shell2152b-line2); border-radius: var(--shell2152b-r-m); overflow: hidden; }

.shell2152b-featrow {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 10px;
  padding: 10px 12px;
  background: rgba(34, 50, 64, 0.35);
  border-bottom: 1px solid var(--shell2152b-line2);
  font-size: 12.5px;
  line-height: 1.6;
}

.shell2152b-featrow:last-child { border-bottom: 0; }

.shell2152b-featrow dt {
  margin: 0;
  font-family: var(--shell2152b-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--shell2152b-bright);
  padding-top: 2px;
}

.shell2152b-featrow dd { margin: 0; color: var(--shell2152b-soft); }

/* Testimonial cards */
.shell2152b-quotes { display: grid; gap: 10px; margin: 4px 0 12px; }

.shell2152b-quote {
  border: 1px solid var(--shell2152b-line2);
  border-radius: var(--shell2152b-r-m);
  background: rgba(34, 50, 64, 0.5);
  padding: 12px;
}

.shell2152b-quotetag {
  display: inline-block;
  font-family: var(--shell2152b-mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--shell2152b-bright);
  border: 1px solid var(--shell2152b-line);
  border-radius: var(--shell2152b-r-xs);
  padding: 2px 7px;
  margin-bottom: 7px;
}

.shell2152b-quote p { margin: 0 0 7px; font-size: 12.5px; line-height: 1.7; color: var(--shell2152b-soft); }
.shell2152b-quote footer { font-family: var(--shell2152b-mono); font-size: 10px; color: var(--shell2152b-mute); }

/* Tricks list */
.shell2152b-tricks { display: grid; gap: 9px; margin: 4px 0 12px; }

.shell2152b-trick {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 12.5px;
  line-height: 1.65;
}

.shell2152b-trickno {
  flex: 0 0 auto;
  font-family: var(--shell2152b-mono);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--shell2152b-bright);
  opacity: 0.9;
  min-width: 26px;
}

.shell2152b-trick b { color: #FFFFFF; display: block; margin-bottom: 2px; font-size: 13px; }

/* Direct answer accordion */
.shell2152b-qa { display: grid; gap: 8px; margin: 4px 0 8px; }

.shell2152b-qa details {
  border: 1px solid var(--shell2152b-line2);
  border-radius: var(--shell2152b-r-m);
  background: rgba(34, 50, 64, 0.45);
  overflow: hidden;
}

.shell2152b-qa summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 48px;
  padding: 11px 12px;
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
  cursor: pointer;
}

.shell2152b-qa summary::-webkit-details-marker { display: none; }

.shell2152b-qa summary::after {
  content: "+";
  font-family: var(--shell2152b-mono);
  font-size: 16px;
  color: var(--shell2152b-bright);
  transition: transform 0.18s ease;
}

.shell2152b-qa details[open] summary::after { transform: rotate(45deg); }

.shell2152b-qa details[open] summary { border-bottom: 1px solid var(--shell2152b-line2); }

.shell2152b-qa .shell2152b-qabody {
  padding: 10px 12px 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--shell2152b-soft);
}

/* Inline promo text links inside modules */
.shell2152b-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  margin-top: 2px;
  border-radius: var(--shell2152b-r-xs);
  background: var(--shell2152b-bright);
  color: var(--shell2152b-ink);
  font-family: var(--shell2152b-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  box-shadow: 0 0 0 1px var(--shell2152b-bright), 0 4px 14px rgba(186, 225, 255, 0.18);
  transition: transform 0.12s ease;
}

.shell2152b-cta:active { transform: scale(0.96); }

.shell2152b-ctarow {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}

/* Reveal-on-scroll (subtle, disabled for reduced motion) */
.shell2152b-rv {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.shell2152b-rv.is-in { opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   8. Extended homepage footer
   -------------------------------------------------------------------------- */
.shell2152b-xfoot {
  margin-top: 30px;
  border-top: 1px solid var(--shell2152b-line);
  padding: 22px var(--shell2152b-pad) 8px;
  background: linear-gradient(180deg, rgba(26, 39, 52, 0.25), rgba(20, 30, 39, 0.9));
}

.shell2152b-xfh {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 800;
  color: #FFFFFF;
}

/* Promo action grid — two columns, six descriptive entries */
.shell2152b-xfpromo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 18px;
}

.shell2152b-xfp {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  min-height: 58px;
  padding: 9px 10px;
  border: 1px solid var(--shell2152b-line);
  border-radius: var(--shell2152b-r-m);
  background: var(--shell2152b-glow);
  text-align: left;
  transition: transform 0.12s ease, border-color 0.18s ease;
}

.shell2152b-xfp:active { transform: scale(0.96); border-color: rgba(186, 225, 255, 0.55); }

.shell2152b-xfp .shell2152b-xfpt {
  font-family: var(--shell2152b-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--shell2152b-bright);
}

.shell2152b-xfp .shell2152b-xfpl {
  font-size: 12px;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.45;
}

.shell2152b-xfbrand {
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--shell2152b-soft);
  margin: 0 0 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--shell2152b-line2);
}

/* Two-column page directory */
.shell2152b-xfdir {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px 14px;
  margin: 0 0 14px;
}

.shell2152b-xfdir a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  min-height: 44px;
  padding: 4px 2px;
  border-bottom: 1px solid var(--shell2152b-line2);
  color: var(--shell2152b-soft);
  font-size: 12.5px;
  line-height: 1.45;
}

.shell2152b-xfdir a::after {
  content: "\2192";
  font-family: var(--shell2152b-mono);
  font-size: 11px;
  color: var(--shell2152b-mute);
}

.shell2152b-xfdir a:hover { color: #FFFFFF; text-decoration: none; }

.shell2152b-xfdisc {
  font-size: 11px;
  line-height: 1.7;
  color: var(--shell2152b-mute);
  border: 1px solid var(--shell2152b-line2);
  border-radius: var(--shell2152b-r-m);
  padding: 10px 12px;
  background: rgba(20, 30, 39, 0.6);
}

/* --------------------------------------------------------------------------
   9. Common footer (copyright only) + bottom function bar
   -------------------------------------------------------------------------- */
.shell2152b-foot {
  padding: 16px var(--shell2152b-pad) 10px;
  border-top: 1px solid var(--shell2152b-line2);
  text-align: center;
}

.shell2152b-foot p {
  margin: 0;
  font-family: var(--shell2152b-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--shell2152b-mute);
}

/* Outlined five-role bottom navigation */
.shell2152b-bnav {
  position: fixed;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  z-index: 70;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  padding: 5px 4px calc(5px + env(safe-area-inset-bottom, 0px));
  background: rgba(20, 30, 39, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid rgba(186, 225, 255, 0.28);
}

.shell2152b-bnavbtn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: 54px;
  border-radius: var(--shell2152b-r-s);
  color: var(--shell2152b-mute);
  font-size: 10px;
  line-height: 1.3;
  transition: color 0.16s ease, transform 0.16s ease;
}

.shell2152b-bnavbtn svg { width: 22px; height: 22px; }

/* Filled active state + slight lift */
.shell2152b-bnavbtn[data-state="on"] {
  color: var(--shell2152b-bright);
  transform: translateY(-2px);
}

.shell2152b-ifill { fill: transparent; transition: fill 0.18s ease; }

.shell2152b-bnavbtn[data-state="on"] .shell2152b-ifill { fill: var(--shell2152b-bright); }

.shell2152b-bnavbtn:active { transform: scale(0.92); }

.shell2152b-bnavbtn span { font-family: var(--shell2152b-sans); }

/* --------------------------------------------------------------------------
   10. Wide-screen behaviour — keep the phone canvas, widen columns slightly
   -------------------------------------------------------------------------- */
@media (min-width: 390px) {
  .shell2152b-ggrid { grid-template-columns: repeat(5, 1fr); gap: 13px 9px; }
  .shell2152b-h1 { font-size: 23px; }
}

@media (min-width: 430px) {
  .shell2152b-page { box-shadow: 0 0 0 1px rgba(186, 225, 255, 0.09), 0 0 44px rgba(0, 0, 0, 0.55); }
  .shell2152b-ggrid { grid-template-columns: repeat(5, 1fr); }
  .shell2152b-slide { aspect-ratio: 16 / 6; }
  .shell2152b-main { padding-left: 16px; padding-right: 16px; }
  .shell2152b-xfoot { padding-left: 16px; padding-right: 16px; }
}

/* --------------------------------------------------------------------------
   11. Motion and print preferences
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .shell2152b-rv { opacity: 1; transform: none; transition: none; }
  .shell2152b-carotrack { transition: none; }
  .shell2152b-tabind { transition: none; }
  .shell2152b-menu[data-open="1"] { animation: none; }
  .shell2152b-bnavbtn[data-state="on"] { transform: none; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

@media print {
  .shell2152b-topbar,
  .shell2152b-bnav,
  .shell2152b-menu { display: none !important; }
  .shell2152b-main { padding-top: 0; padding-bottom: 0; }
  body { background: #FFFFFF; color: #000000; }
}