/* ==========================================================================
   kx80.click - adaptive display stylesheet
   Class prefix contract : ui21b33-
   Palette               : #1C2833 base / #00FFFF accent / #E0FFFF text
   Canvas                : 320-430px mobile first, centered phone canvas
   Design tone           : rounded headings + compact body, small-medium radii,
                           horizontal icon-name game strips, fact-first rhythm,
                           segmented CTAs, center-raised bottom navigation
   ========================================================================== */

/* ---------------------------------------------------------------- tokens */
:root {
  --ui21b33-ink: #1c2833;
  --ui21b33-ink-deep: #141f28;
  --ui21b33-ink-panel: #23333f;
  --ui21b33-ink-raise: #2a3c4a;
  --ui21b33-cyan: #00ffff;
  --ui21b33-cyan-soft: #37e6e6;
  --ui21b33-cyan-deep: #00b8c4;
  --ui21b33-mist: #e0ffff;
  --ui21b33-dim: rgba(224, 255, 255, 0.66);
  --ui21b33-faint: rgba(224, 255, 255, 0.42);
  --ui21b33-line: rgba(0, 255, 255, 0.18);
  --ui21b33-line-soft: rgba(224, 255, 255, 0.1);
  --ui21b33-glow: rgba(0, 255, 255, 0.32);
  --ui21b33-r-s: 8px;
  --ui21b33-r-m: 14px;
  --ui21b33-r-l: 20px;
  --ui21b33-font-head: "Baloo Da 2", "Hind Siliguri", "Noto Sans Bengali", system-ui, sans-serif;
  --ui21b33-font-body: "Hind Siliguri", "Noto Sans Bengali", system-ui, -apple-system, sans-serif;
  --ui21b33-header-h: 100px;
  --ui21b33-nav-h: 68px;
  --ui21b33-pad: 12px;
}

/* ----------------------------------------------------------------- reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--ui21b33-font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ui21b33-mist);
  background: #0b1319;
  overflow-x: hidden;
}

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

h1, h2, h3, p, ul, ol, figure {
  margin: 0;
}

ul, ol {
  padding: 0;
  list-style: none;
}

a {
  color: var(--ui21b33-cyan-soft);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

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

:focus-visible {
  outline: 2px solid var(--ui21b33-cyan);
  outline-offset: 2px;
  border-radius: 6px;
}

/* --------------------------------------------------------- phone canvas */
.ui21b33-canvas {
  position: relative;
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  min-height: 100vh;
  background:
    radial-gradient(340px 220px at 85% -60px, rgba(0, 255, 255, 0.09), transparent 70%),
    radial-gradient(300px 260px at -70px 34%, rgba(0, 184, 196, 0.07), transparent 72%),
    var(--ui21b33-ink);
  box-shadow: 0 0 44px rgba(0, 0, 0, 0.5);
  overflow-x: clip;
}

.ui21b33-no-scroll {
  overflow: hidden;
}

/* ------------------------------------------------------- main flow area */
.ui21b33-main {
  padding: calc(var(--ui21b33-header-h) + 10px) var(--ui21b33-pad) calc(var(--ui21b33-nav-h) + 34px);
}

/* ------------------------------------------------------------ typography */
.ui21b33-h1 {
  font-family: var(--ui21b33-font-head);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.3;
  letter-spacing: 0.2px;
  color: var(--ui21b33-mist);
}

.ui21b33-h2 {
  font-family: var(--ui21b33-font-head);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.35;
  color: var(--ui21b33-mist);
  padding-left: 12px;
  border-left: 4px solid var(--ui21b33-cyan);
  border-radius: 2px;
}

.ui21b33-h3 {
  font-family: var(--ui21b33-font-head);
  font-weight: 600;
  font-size: 16.5px;
  line-height: 1.4;
  color: var(--ui21b33-mist);
}

.ui21b33-section {
  margin-top: 30px;
}

.ui21b33-section-head {
  margin-bottom: 10px;
}

.ui21b33-lede {
  color: var(--ui21b33-dim);
  margin-top: 8px;
}

/* fact-first summary bar: conclusion first, details after */
.ui21b33-fact {
  margin: 10px 0 12px;
  padding: 10px 12px;
  background: rgba(0, 255, 255, 0.07);
  border: 1px solid var(--ui21b33-line);
  border-radius: var(--ui21b33-r-s);
  color: var(--ui21b33-mist);
  font-weight: 600;
  font-size: 14.5px;
  line-height: 1.5;
}

.ui21b33-fact::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--ui21b33-cyan);
  box-shadow: 0 0 8px var(--ui21b33-glow);
  vertical-align: 1px;
}

.ui21b33-p {
  margin-top: 10px;
  color: var(--ui21b33-dim);
  overflow-wrap: break-word;
}

.ui21b33-p strong,
.ui21b33-fact strong {
  color: var(--ui21b33-mist);
  font-weight: 600;
}

/* ==================================================================== */
/* fixed header : centered identity bar + segmented action row           */
/* ==================================================================== */
.ui21b33-header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  z-index: 50;
  background: rgba(20, 31, 40, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ui21b33-line-soft);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.35);
}

/* identity strip : logo + name only, perfectly centered */
.ui21b33-idbar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 9px 14px 7px;
}

.ui21b33-logo {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  border: 1px solid var(--ui21b33-line);
  box-shadow: 0 0 12px rgba(0, 255, 255, 0.22);
  object-fit: cover;
  flex: none;
}

.ui21b33-brand {
  font-family: var(--ui21b33-font-head);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: 1.5px;
  color: var(--ui21b33-mist);
  line-height: 1;
}

.ui21b33-brand em {
  font-style: normal;
  color: var(--ui21b33-cyan);
}

/* action row : segmented register/login + menu trigger */
.ui21b33-actrow {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px 10px;
}

/* segmented control shape for CTAs */
.ui21b33-seg {
  display: flex;
  flex: 1;
  min-width: 0;
  padding: 3px;
  gap: 3px;
  background: var(--ui21b33-ink-deep);
  border: 1px solid var(--ui21b33-line-soft);
  border-radius: 999px;
}

.ui21b33-seg-btn {
  flex: 1;
  min-height: 44px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.ui21b33-seg-btn:active {
  transform: translateY(-2px);
}

.ui21b33-seg-primary {
  background: linear-gradient(160deg, var(--ui21b33-cyan) 0%, var(--ui21b33-cyan-deep) 100%);
  color: #082028;
  box-shadow: 0 4px 14px rgba(0, 255, 255, 0.25);
}

.ui21b33-seg-ghost {
  background: transparent;
  color: var(--ui21b33-cyan-soft);
  border: 1px solid var(--ui21b33-line);
}

.ui21b33-burger {
  width: 46px;
  height: 46px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--ui21b33-line);
  color: var(--ui21b33-cyan);
  background: rgba(0, 255, 255, 0.05);
  transition: transform 0.18s ease, background 0.18s ease;
}

.ui21b33-burger:active {
  transform: translateY(-2px);
  background: rgba(0, 255, 255, 0.14);
}

/* ==================================================================== */
/* full-height menu layer                                                */
/* ==================================================================== */
.ui21b33-menu {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: 0 auto;
  width: 100%;
  max-width: 430px;
  z-index: 80;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(300px 200px at 100% 0%, rgba(0, 255, 255, 0.08), transparent 70%),
    rgba(13, 21, 28, 0.99);
  border-left: 1px solid var(--ui21b33-line-soft);
  transform: translateX(102%);
  transition: transform 0.3s cubic-bezier(0.22, 0.9, 0.3, 1);
  visibility: hidden;
}

.ui21b33-menu-open {
  transform: translateX(0);
  visibility: visible;
}

.ui21b33-menu-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--ui21b33-line-soft);
}

.ui21b33-menu-head img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.ui21b33-menu-head strong {
  font-family: var(--ui21b33-font-head);
  font-size: 18px;
  letter-spacing: 1.2px;
  color: var(--ui21b33-mist);
}

.ui21b33-menu-close {
  margin-left: auto;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--ui21b33-dim);
  border: 1px solid var(--ui21b33-line-soft);
}

.ui21b33-menu-list {
  flex: 1;
  overflow-y: auto;
  padding: 10px 12px;
}

.ui21b33-menu-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 48px;
  padding: 6px 12px;
  margin: 4px 0;
  border-radius: var(--ui21b33-r-s);
  color: var(--ui21b33-mist);
  font-size: 15.5px;
  font-weight: 500;
  background: rgba(224, 255, 255, 0.03);
  border: 1px solid var(--ui21b33-line-soft);
  transition: background 0.16s ease, transform 0.16s ease;
}

.ui21b33-menu-list a:hover,
.ui21b33-menu-list a:focus-visible {
  background: rgba(0, 255, 255, 0.09);
  text-decoration: none;
}

.ui21b33-menu-list a:active {
  transform: translateY(-1px);
}

.ui21b33-menu-list svg {
  flex: none;
  color: var(--ui21b33-cyan);
}

.ui21b33-menu-foot {
  padding: 12px 16px calc(16px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--ui21b33-line-soft);
}

.ui21b33-menu-foot .ui21b33-seg-btn {
  width: 100%;
  min-height: 46px;
}

/* ==================================================================== */
/* hero + carousel                                                       */
/* ==================================================================== */
.ui21b33-hero {
  margin-top: 2px;
}

.ui21b33-hero-top {
  margin-bottom: 12px;
}

.ui21b33-chips {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 2px;
}

.ui21b33-chips::-webkit-scrollbar {
  display: none;
}

.ui21b33-chip {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 4px 13px;
  border-radius: 999px;
  background: var(--ui21b33-ink-panel);
  border: 1px solid var(--ui21b33-line-soft);
  color: var(--ui21b33-dim);
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}

.ui21b33-chip b {
  color: var(--ui21b33-cyan);
  font-family: var(--ui21b33-font-head);
  font-size: 13.5px;
}

.ui21b33-carousel {
  position: relative;
  border-radius: var(--ui21b33-r-m);
  overflow: hidden;
  border: 1px solid var(--ui21b33-line);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.4);
  touch-action: pan-y;
}

.ui21b33-track {
  display: flex;
  width: 300%;
  transition: transform 0.42s cubic-bezier(0.3, 0.8, 0.3, 1);
}

.ui21b33-slide {
  position: relative;
  flex: 0 0 33.3333%;
  width: 33.3333%;
  height: 176px;
  display: block;
  text-align: left;
  overflow: hidden;
}

.ui21b33-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ui21b33-slide-copy {
  position: absolute;
  inset: auto 0 0 0;
  padding: 26px 14px 12px;
  background: linear-gradient(180deg, transparent, rgba(11, 19, 25, 0.94) 62%);
  display: block;
}

.ui21b33-slide-copy strong {
  display: block;
  font-family: var(--ui21b33-font-head);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.3;
  color: var(--ui21b33-mist);
}

.ui21b33-slide-copy em {
  display: block;
  font-style: normal;
  font-size: 12.5px;
  color: var(--ui21b33-dim);
  margin-top: 2px;
}

.ui21b33-slide-copy i {
  display: inline-block;
  font-style: normal;
  margin-top: 7px;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--ui21b33-cyan);
  color: #082028;
  font-size: 12px;
  font-weight: 700;
}

/* dot row with sliding focus indicator */
.ui21b33-dots {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: flex;
  gap: 5px;
  z-index: 2;
}

/* generous hit area, small visual pill via background-clip */
.ui21b33-dot {
  width: 26px;
  height: 26px;
  padding: 9px 7px;
  border-radius: 999px;
  background: rgba(224, 255, 255, 0.38);
  background-clip: content-box;
  transition: width 0.28s ease, background-color 0.28s ease;
}

.ui21b33-dot-on {
  width: 46px;
  background-color: var(--ui21b33-cyan);
}

/* ==================================================================== */
/* game library : category shells + horizontal icon-name strips          */
/* ==================================================================== */
.ui21b33-cat {
  margin-top: 22px;
  scroll-margin-top: calc(var(--ui21b33-header-h) + 8px);
}

.ui21b33-cat-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 9px;
}

.ui21b33-cat-count {
  font-size: 12px;
  font-weight: 600;
  color: var(--ui21b33-cyan);
  background: rgba(0, 255, 255, 0.08);
  border: 1px solid var(--ui21b33-line);
  border-radius: 999px;
  padding: 2px 10px;
  white-space: nowrap;
}

.ui21b33-cat-note {
  color: var(--ui21b33-faint);
  font-size: 12.5px;
  margin-bottom: 10px;
}

.ui21b33-games {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

/* the game strip : icon left, bangla name right */
.ui21b33-game {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 56px;
  padding: 6px 8px 6px 6px;
  background: var(--ui21b33-ink-panel);
  border: 1px solid var(--ui21b33-line-soft);
  border-radius: var(--ui21b33-r-s);
  text-align: left;
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.ui21b33-game:hover {
  border-color: var(--ui21b33-line);
  text-decoration: none;
}

.ui21b33-game:active {
  transform: translateY(-1px);
  background: var(--ui21b33-ink-raise);
}

.ui21b33-game img {
  width: 42px;
  height: 42px;
  flex: none;
  border-radius: 7px;
  object-fit: cover;
  background: var(--ui21b33-ink-deep);
}

.ui21b33-game span {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ui21b33-mist);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  overflow-wrap: anywhere;
}

/* quick category jump rail under the library heading */
.ui21b33-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  margin: 12px 0 2px;
  padding-bottom: 2px;
}

.ui21b33-rail::-webkit-scrollbar {
  display: none;
}

.ui21b33-rail a {
  flex: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: 999px;
  border: 1px solid var(--ui21b33-line);
  color: var(--ui21b33-cyan-soft);
  background: rgba(0, 255, 255, 0.05);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  transition: background 0.16s ease, transform 0.16s ease;
}

.ui21b33-rail a:hover {
  text-decoration: none;
  background: rgba(0, 255, 255, 0.12);
}

.ui21b33-rail a:active {
  transform: translateY(-1px);
}

/* ==================================================================== */
/* content modules                                                       */
/* ==================================================================== */

/* play-style comparison rows */
.ui21b33-styles {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.ui21b33-style {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px;
  padding: 10px;
  background: var(--ui21b33-ink-panel);
  border: 1px solid var(--ui21b33-line-soft);
  border-radius: var(--ui21b33-r-s);
}

.ui21b33-style-badge {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(0, 255, 255, 0.08);
  border: 1px solid var(--ui21b33-line);
  color: var(--ui21b33-cyan);
}

.ui21b33-style h4 {
  margin: 0;
  font-family: var(--ui21b33-font-head);
  font-size: 14.5px;
  color: var(--ui21b33-mist);
  line-height: 1.3;
}

.ui21b33-style p {
  margin: 3px 0 0;
  font-size: 13px;
  color: var(--ui21b33-dim);
  line-height: 1.5;
}

/* numbered trick + criteria cards */
.ui21b33-cards {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.ui21b33-card {
  counter-increment: ui21b33-card;
  padding: 10px 12px;
  background: var(--ui21b33-ink-panel);
  border: 1px solid var(--ui21b33-line-soft);
  border-radius: var(--ui21b33-r-s);
}

.ui21b33-cards {
  counter-reset: ui21b33-card;
}

.ui21b33-card::before {
  content: counter(ui21b33-card, decimal-leading-zero);
  display: inline-block;
  font-family: var(--ui21b33-font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--ui21b33-cyan);
  border: 1px solid var(--ui21b33-line);
  border-radius: 6px;
  padding: 1px 7px;
  margin-bottom: 6px;
  background: rgba(0, 255, 255, 0.05);
}

.ui21b33-card h4 {
  margin: 0;
  font-family: var(--ui21b33-font-head);
  font-size: 14.5px;
  color: var(--ui21b33-mist);
  line-height: 1.35;
}

.ui21b33-card p {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ui21b33-dim);
}

/* checklist */
.ui21b33-check {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.ui21b33-check li {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  min-height: 44px;
  padding: 9px 11px;
  background: var(--ui21b33-ink-panel);
  border: 1px solid var(--ui21b33-line-soft);
  border-radius: var(--ui21b33-r-s);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ui21b33-dim);
}

.ui21b33-check b {
  color: var(--ui21b33-mist);
  font-weight: 600;
}

.ui21b33-check li::before {
  content: "";
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 6px;
  border: 1.5px solid var(--ui21b33-cyan);
  background:
    linear-gradient(135deg, transparent 46%, var(--ui21b33-cyan) 46% 58%, transparent 58%) no-repeat center / 12px 12px;
}

/* CTA band */
.ui21b33-cta-band {
  margin-top: 14px;
  padding: 16px 14px;
  border-radius: var(--ui21b33-r-m);
  background:
    radial-gradient(240px 150px at 90% -30%, rgba(0, 255, 255, 0.16), transparent 70%),
    var(--ui21b33-ink-panel);
  border: 1px solid var(--ui21b33-line);
}

.ui21b33-cta-band .ui21b33-seg {
  margin-top: 14px;
}

.ui21b33-cta-band .ui21b33-seg-btn {
  min-height: 46px;
  min-width: 0;
  white-space: nowrap;
  font-size: 14px;
}

.ui21b33-cta-note {
  margin-top: 10px;
  font-size: 12px;
  color: var(--ui21b33-faint);
}

/* inline text link emphasis */
.ui21b33-inline {
  color: var(--ui21b33-cyan);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(0, 255, 255, 0.4);
  text-underline-offset: 3px;
}

/* ==================================================================== */
/* extended footer : brand > directory > promotions > disclaimer         */
/* ==================================================================== */
.ui21b33-xfoot {
  margin-top: 34px;
  border-top: 1px solid var(--ui21b33-line-soft);
  padding-top: 18px;
  display: grid;
  gap: 16px;
}

.ui21b33-xfoot-block h3 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: none;
  color: var(--ui21b33-cyan);
  font-family: var(--ui21b33-font-head);
  margin-bottom: 8px;
}

.ui21b33-xfoot-brand p {
  font-size: 13px;
  color: var(--ui21b33-dim);
  line-height: 1.6;
}

.ui21b33-fdir {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 10px;
}

.ui21b33-fdir a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 4px 10px;
  border-radius: var(--ui21b33-r-s);
  background: rgba(224, 255, 255, 0.035);
  border: 1px solid var(--ui21b33-line-soft);
  color: var(--ui21b33-mist);
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.3;
  transition: background 0.16s ease, border-color 0.16s ease;
}

.ui21b33-fdir a:hover {
  background: rgba(0, 255, 255, 0.08);
  border-color: var(--ui21b33-line);
  text-decoration: none;
}

.ui21b33-fpromo {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.ui21b33-fpromo-btn {
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--ui21b33-line);
  background: rgba(0, 255, 255, 0.06);
  color: var(--ui21b33-cyan);
  font-size: 12.5px;
  font-weight: 700;
  transition: transform 0.16s ease, background 0.16s ease;
}

.ui21b33-fpromo-btn:active {
  transform: translateY(-2px);
  background: rgba(0, 255, 255, 0.16);
}

.ui21b33-fnote {
  padding: 11px 13px;
  border-radius: var(--ui21b33-r-s);
  border: 1px dashed rgba(224, 255, 255, 0.22);
  color: var(--ui21b33-faint);
  font-size: 12px;
  line-height: 1.6;
}

/* common footer : copyright only (nav bar is fixed separately) */
.ui21b33-foot {
  margin-top: 18px;
  padding: 14px 0 6px;
  border-top: 1px solid var(--ui21b33-line-soft);
  text-align: center;
  color: var(--ui21b33-faint);
  font-size: 12px;
  letter-spacing: 0.4px;
}

/* ==================================================================== */
/* bottom navigation : center-raised five role bar                       */
/* ==================================================================== */
.ui21b33-bnav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  z-index: 60;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: end;
  height: calc(var(--ui21b33-nav-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: rgba(16, 26, 34, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--ui21b33-line-soft);
}

.ui21b33-bnav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 3px;
  height: var(--ui21b33-nav-h);
  padding-top: 9px;
  color: var(--ui21b33-faint);
  font-size: 10.5px;
  font-weight: 600;
  line-height: 1;
  transition: transform 0.2s ease, color 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.ui21b33-bnav-item svg {
  width: 22px;
  height: 22px;
}

/* restrained inactive icons, filled active state with a short lift */
.ui21b33-bnav-item .ui21b33-ic {
  opacity: 0.55;
  transition: opacity 0.2s ease;
}

.ui21b33-bnav-item:hover {
  color: var(--ui21b33-dim);
  text-decoration: none;
}

.ui21b33-bnav-item.on {
  color: var(--ui21b33-cyan);
  transform: translateY(-3px);
}

.ui21b33-bnav-item.on .ui21b33-ic {
  opacity: 1;
  filter: drop-shadow(0 0 6px var(--ui21b33-glow));
}

/* center raised primary promo */
.ui21b33-bnav-item--core {
  position: relative;
}

.ui21b33-bnav-item--core .ui21b33-core-btn {
  width: 54px;
  height: 54px;
  margin-top: -26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(165deg, #6ff7f7 0%, var(--ui21b33-cyan) 45%, var(--ui21b33-cyan-deep) 100%);
  color: #072027;
  box-shadow: 0 8px 20px rgba(0, 255, 255, 0.4), 0 0 0 5px rgba(16, 26, 34, 0.97);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.ui21b33-bnav-item--core .ui21b33-core-btn:active {
  transform: translateY(-4px);
  box-shadow: 0 12px 26px rgba(0, 255, 255, 0.5), 0 0 0 5px rgba(16, 26, 34, 0.97);
}

.ui21b33-bnav-item--core .ui21b33-core-btn svg {
  width: 26px;
  height: 26px;
}

.ui21b33-bnav-item--core.on {
  transform: none;
}

/* ==================================================================== */
/* utility + small-canvas tuning                                         */
/* ==================================================================== */
.ui21b33-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

@media (max-width: 360px) {
  .ui21b33-h1 {
    font-size: 21.5px;
  }

  .ui21b33-h2 {
    font-size: 18px;
  }

  .ui21b33-seg-btn {
    font-size: 13.5px;
  }

  .ui21b33-game span {
    font-size: 10.5px;
  }

  .ui21b33-game {
    min-height: 58px;
    padding-left: 5px;
    padding-right: 5px;
    gap: 5px;
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }

  .ui21b33-game img {
    width: 34px;
    height: 34px;
  }

  .ui21b33-fpromo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* wider phones inside the mobile canvas */
@media (min-width: 375px) {
  :root {
    --ui21b33-pad: 14px;
  }

  .ui21b33-slide {
    height: 188px;
  }
}

/* the 430px phone-canvas breakpoint : canvas locks, micro scale-ups */
@media (min-width: 430px) {
  :root {
    --ui21b33-pad: 16px;
  }

  .ui21b33-h1 {
    font-size: 25px;
  }

  .ui21b33-slide {
    height: 198px;
  }

  .ui21b33-game img {
    width: 46px;
    height: 46px;
  }

  .ui21b33-game span {
    font-size: 11.5px;
  }

  .ui21b33-game {
    min-height: 64px;
    gap: 5px;
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }

  .ui21b33-game img {
    width: 38px;
    height: 38px;
  }
}

/* beyond the canvas the page stays a centered phone layout */
@media (min-width: 480px) {
  .ui21b33-canvas {
    border-left: 1px solid var(--ui21b33-line-soft);
    border-right: 1px solid var(--ui21b33-line-soft);
  }
}

/* respect users who prefer calmer motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .ui21b33-track,
  .ui21b33-menu,
  .ui21b33-dot,
  .ui21b33-bnav-item,
  .ui21b33-bnav-item .ui21b33-core-btn,
  .ui21b33-seg-btn,
  .ui21b33-game {
    transition: none;
  }
}