/* ==========================================================================
   tk1791 mobile display stylesheet
   Class prefix .... mobilecfa4b-
   Palette ........ #273746 canvas / #D3D3D3 ink
   Direction ...... stroke-led restrained radii, light floating game tiles,
                    intro-divided sections, slide-in menu + soft card lift,
                    segmented action buttons, floating dock bar
   Canvas ......... 320-430px phone frame, centered on wide screens
   ========================================================================== */

:root {
  --mobilecfa4b-canvas: #273746;
  --mobilecfa4b-canvas-deep: #1f2d39;
  --mobilecfa4b-canvas-outer: #16202a;
  --mobilecfa4b-panel: #2c3e50;
  --mobilecfa4b-wash: rgba(211, 211, 211, 0.07);
  --mobilecfa4b-wash-strong: rgba(211, 211, 211, 0.13);
  --mobilecfa4b-ink: #d3d3d3;
  --mobilecfa4b-ink-strong: #ededed;
  --mobilecfa4b-ink-soft: #9faab4;
  --mobilecfa4b-line: rgba(211, 211, 211, 0.2);
  --mobilecfa4b-line-strong: rgba(211, 211, 211, 0.4);
  --mobilecfa4b-radius: 10px;
  --mobilecfa4b-radius-lg: 14px;
  --mobilecfa4b-topbar-h: 56px;
  --mobilecfa4b-dock-h: 62px;
  --mobilecfa4b-shadow: 0 12px 30px rgba(10, 16, 22, 0.38);
  --mobilecfa4b-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

body {
  margin: 0;
  background: var(--mobilecfa4b-canvas-outer);
  color: var(--mobilecfa4b-ink);
  font-family: "Hind Siliguri", "Noto Sans Bengali", "Segoe UI", system-ui,
    -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.7;
}

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

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

a {
  color: var(--mobilecfa4b-ink-strong);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 2px solid var(--mobilecfa4b-ink-strong);
  outline-offset: 2px;
  border-radius: 4px;
}

/* --------------------------------------------------------------------------
   Phone canvas frame
   -------------------------------------------------------------------------- */

.mobilecfa4b-page {
  position: relative;
  width: 100%;
  max-width: 430px;
  margin-inline: auto;
  min-height: 100dvh;
  background: var(--mobilecfa4b-canvas);
  border-inline: 1px solid var(--mobilecfa4b-line);
}

@media (min-width: 480px) {
  .mobilecfa4b-page {
    box-shadow: var(--mobilecfa4b-shadow);
  }
}

/* --------------------------------------------------------------------------
   Fixed compact brand bar
   -------------------------------------------------------------------------- */

.mobilecfa4b-topbar {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  height: var(--mobilecfa4b-topbar-h);
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(31, 45, 57, 0.94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--mobilecfa4b-line);
}

.mobilecfa4b-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.mobilecfa4b-logo {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: 9px;
  border: 1px solid var(--mobilecfa4b-line-strong);
  object-fit: cover;
  background: var(--mobilecfa4b-canvas-deep);
}

.mobilecfa4b-brandname {
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--mobilecfa4b-ink-strong);
  white-space: nowrap;
}

.mobilecfa4b-topactions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* segmented action group (register / login) */
.mobilecfa4b-seg {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: 9px;
  overflow: hidden;
}

.mobilecfa4b-segbtn {
  min-height: 36px;
  padding: 7px 12px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: background 0.25s var(--mobilecfa4b-ease),
    color 0.25s var(--mobilecfa4b-ease);
}

.mobilecfa4b-segmain {
  background: var(--mobilecfa4b-ink);
  color: #22303c;
}

.mobilecfa4b-segmain:hover,
.mobilecfa4b-segmain:focus-visible {
  background: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-segalt {
  background: var(--mobilecfa4b-wash);
  color: var(--mobilecfa4b-ink-strong);
  border-left: 1px solid var(--mobilecfa4b-line);
}

.mobilecfa4b-segalt:hover,
.mobilecfa4b-segalt:focus-visible {
  background: var(--mobilecfa4b-wash-strong);
}

/* burger button */
.mobilecfa4b-burger {
  width: 42px;
  height: 42px;
  display: grid;
  place-content: center;
  gap: 5px;
  border: 1px solid var(--mobilecfa4b-line);
  border-radius: 9px;
  background: var(--mobilecfa4b-wash);
}

.mobilecfa4b-burger span {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--mobilecfa4b-ink-strong);
  transition: transform 0.3s var(--mobilecfa4b-ease),
    opacity 0.2s linear;
}

.mobilecfa4b-burgeropen span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobilecfa4b-burgeropen span:nth-child(2) {
  opacity: 0;
}

.mobilecfa4b-burgeropen span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Layered slide-down menu
   -------------------------------------------------------------------------- */

.mobilecfa4b-menu {
  position: fixed;
  top: var(--mobilecfa4b-topbar-h);
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  width: 100%;
  max-width: 430px;
  max-height: calc(100dvh - var(--mobilecfa4b-topbar-h));
  overflow-y: auto;
  z-index: 75;
  padding: 6px 12px 18px;
  background: rgba(31, 45, 57, 0.97);
  border-bottom: 1px solid var(--mobilecfa4b-line);
  visibility: hidden;
  opacity: 0;
  transition: transform 0.28s var(--mobilecfa4b-ease),
    opacity 0.22s linear, visibility 0.28s;
}

.mobilecfa4b-menuopen {
  visibility: visible;
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.mobilecfa4b-menugroup {
  padding: 10px 0 4px;
  border-bottom: 1px solid var(--mobilecfa4b-line);
}

.mobilecfa4b-menugroup:last-child {
  border-bottom: 0;
}

.mobilecfa4b-menulabel {
  margin: 0 0 6px;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mobilecfa4b-ink-soft);
}

.mobilecfa4b-menulink {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 10px 10px 12px;
  border-left: 2px solid transparent;
  border-radius: 8px;
  font-size: 0.92rem;
  color: var(--mobilecfa4b-ink);
  transition: background 0.25s var(--mobilecfa4b-ease),
    border-color 0.25s var(--mobilecfa4b-ease),
    color 0.25s var(--mobilecfa4b-ease);
}

.mobilecfa4b-menulink:hover,
.mobilecfa4b-menulink:focus-visible {
  background: var(--mobilecfa4b-wash);
  border-left-color: var(--mobilecfa4b-line-strong);
  color: var(--mobilecfa4b-ink-strong);
  text-decoration: none;
}

.mobilecfa4b-menuarrow {
  margin-left: auto;
  color: var(--mobilecfa4b-ink-soft);
  font-size: 0.8rem;
}

/* --------------------------------------------------------------------------
   Main flow
   -------------------------------------------------------------------------- */

.mobilecfa4b-main {
  padding: calc(var(--mobilecfa4b-topbar-h) + 14px) 14px
    calc(var(--mobilecfa4b-dock-h) + 30px + env(safe-area-inset-bottom));
}

/* hero - intro divided rhythm */
.mobilecfa4b-hero {
  padding: 18px 2px 6px;
}

.mobilecfa4b-kicker {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 10px;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: 999px;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mobilecfa4b-ink-soft);
}

.mobilecfa4b-h1 {
  margin: 0 0 12px;
  font-size: clamp(1.32rem, 5.4vw, 1.62rem);
  line-height: 1.4;
  font-weight: 800;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-lede {
  margin: 0 0 16px;
  font-size: 0.93rem;
  font-weight: 300;
  color: var(--mobilecfa4b-ink);
}

.mobilecfa4b-lede strong {
  font-weight: 700;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-heroduo {
  display: flex;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: var(--mobilecfa4b-radius);
  overflow: hidden;
  margin: 0 0 18px;
}

.mobilecfa4b-heroduo .mobilecfa4b-segbtn {
  flex: 1;
  min-height: 46px;
  font-size: 0.9rem;
}

.mobilecfa4b-heroduo .mobilecfa4b-segmain {
  border-right: 1px solid var(--mobilecfa4b-line);
}

/* --------------------------------------------------------------------------
   Banner carousel
   -------------------------------------------------------------------------- */

.mobilecfa4b-banner {
  position: relative;
  margin: 4px 0 18px;
  display: grid;
}

.mobilecfa4b-slide {
  grid-area: 1 / 1;
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--mobilecfa4b-line);
  border-radius: var(--mobilecfa4b-radius-lg);
  overflow: hidden;
  background: var(--mobilecfa4b-canvas-deep);
  opacity: 0;
  visibility: hidden;
  transform: scale(0.99);
  transition: opacity 0.45s ease, transform 0.45s var(--mobilecfa4b-ease),
    visibility 0.45s;
}

.mobilecfa4b-slideon {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.mobilecfa4b-slideimg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mobilecfa4b-slidecap {
  position: absolute;
  inset: auto 0 0 0;
  padding: 26px 14px 12px;
  background: linear-gradient(
    to top,
    rgba(22, 32, 42, 0.92),
    rgba(22, 32, 42, 0)
  );
  text-align: left;
}

.mobilecfa4b-slidecap strong {
  display: block;
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--mobilecfa4b-ink-strong);
  line-height: 1.45;
}

.mobilecfa4b-slidecap em {
  display: block;
  font-style: normal;
  font-size: 0.74rem;
  font-weight: 300;
  color: var(--mobilecfa4b-ink);
}

.mobilecfa4b-dots {
  position: absolute;
  right: 12px;
  bottom: 10px;
  display: flex;
  gap: 6px;
  z-index: 2;
}

.mobilecfa4b-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border-radius: 999px;
  border: 1px solid var(--mobilecfa4b-ink-strong);
  background: transparent;
  transition: width 0.3s var(--mobilecfa4b-ease),
    background 0.3s var(--mobilecfa4b-ease);
}

.mobilecfa4b-doton {
  width: 20px;
  background: var(--mobilecfa4b-ink-strong);
}

/* --------------------------------------------------------------------------
   Quick facts strip
   -------------------------------------------------------------------------- */

.mobilecfa4b-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--mobilecfa4b-line);
  border-radius: var(--mobilecfa4b-radius);
  margin: 0 0 22px;
  overflow: hidden;
}

.mobilecfa4b-fact {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding: 9px 12px;
  background: var(--mobilecfa4b-wash);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--mobilecfa4b-ink);
  border-bottom: 1px solid var(--mobilecfa4b-line);
}

.mobilecfa4b-fact:nth-child(2n) {
  border-left: 1px solid var(--mobilecfa4b-line);
}

.mobilecfa4b-fact:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.mobilecfa4b-fact svg {
  flex: 0 0 auto;
  color: var(--mobilecfa4b-ink-soft);
}

/* --------------------------------------------------------------------------
   Sections (intro divided)
   -------------------------------------------------------------------------- */

.mobilecfa4b-section {
  margin: 0 0 30px;
}

.mobilecfa4b-sechead {
  padding: 0 0 10px;
  margin: 0 0 14px;
  border-bottom: 1px solid var(--mobilecfa4b-line);
  position: relative;
}

.mobilecfa4b-sechead::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 44px;
  height: 2px;
  background: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-secnote {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 0 0 6px;
}

.mobilecfa4b-seclabel {
  margin: 0;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mobilecfa4b-ink-soft);
}

.mobilecfa4b-counttag {
  flex: 0 0 auto;
  padding: 2px 9px;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: 999px;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--mobilecfa4b-ink);
  white-space: nowrap;
}

.mobilecfa4b-h2 {
  margin: 0 0 8px;
  font-size: clamp(1.05rem, 4.4vw, 1.22rem);
  line-height: 1.5;
  font-weight: 800;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-seclede {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--mobilecfa4b-ink);
}

.mobilecfa4b-seclede a {
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* --------------------------------------------------------------------------
   Game grid - light floating tiles
   -------------------------------------------------------------------------- */

.mobilecfa4b-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px 8px;
}

.mobilecfa4b-tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 6px;
  background: var(--mobilecfa4b-panel);
  border: 1px solid var(--mobilecfa4b-line);
  border-radius: var(--mobilecfa4b-radius);
  box-shadow: 0 6px 14px rgba(10, 16, 22, 0.22);
  transition: transform 0.22s var(--mobilecfa4b-ease),
    border-color 0.25s var(--mobilecfa4b-ease),
    background 0.25s var(--mobilecfa4b-ease);
}

.mobilecfa4b-tile:hover,
.mobilecfa4b-tile:focus-visible {
  transform: translateY(-3px);
  border-color: var(--mobilecfa4b-line-strong);
}

.mobilecfa4b-tile:active {
  transform: translateY(-1px);
}

.mobilecfa4b-tileimg {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 7px;
  border: 1px solid var(--mobilecfa4b-line);
  background: var(--mobilecfa4b-canvas-deep);
}

.mobilecfa4b-tilename {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.5em;
  text-align: center;
  font-size: 0.68rem;
  line-height: 1.25;
  font-weight: 700;
  color: var(--mobilecfa4b-ink);
  overflow-wrap: anywhere;
}

/* wider phones get a fifth track */
@media (min-width: 430px) {
  .mobilecfa4b-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

/* --------------------------------------------------------------------------
   Selection guide module
   -------------------------------------------------------------------------- */

.mobilecfa4b-guidegrid {
  display: grid;
  gap: 10px;
}

@media (min-width: 375px) {
  .mobilecfa4b-guidegrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.mobilecfa4b-guidecard {
  display: flex;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--mobilecfa4b-line);
  border-radius: var(--mobilecfa4b-radius);
  background: var(--mobilecfa4b-wash);
  transition: transform 0.22s var(--mobilecfa4b-ease),
    border-color 0.25s var(--mobilecfa4b-ease);
}

.mobilecfa4b-guidecard:hover {
  transform: translateY(-2px);
  border-color: var(--mobilecfa4b-line-strong);
}

.mobilecfa4b-guideicon {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  display: grid;
  place-content: center;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: 9px;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-guidetitle {
  display: block;
  font-size: 0.86rem;
  font-weight: 800;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-guidetext {
  display: block;
  margin-top: 3px;
  font-size: 0.78rem;
  font-weight: 300;
  line-height: 1.65;
  color: var(--mobilecfa4b-ink);
}

/* --------------------------------------------------------------------------
   Achievements module
   -------------------------------------------------------------------------- */

.mobilecfa4b-milelist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.mobilecfa4b-mile {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--mobilecfa4b-line);
}

.mobilecfa4b-mile:last-child {
  border-bottom: 0;
}

.mobilecfa4b-milenum {
  grid-row: span 2;
  width: 34px;
  height: 34px;
  display: grid;
  place-content: center;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: 9px;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-miletile {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-miledesc {
  grid-column: 2;
  margin: 0;
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--mobilecfa4b-ink);
}

.mobilecfa4b-miletrack {
  grid-column: 2;
  height: 3px;
  border-radius: 3px;
  background: var(--mobilecfa4b-wash-strong);
  overflow: hidden;
}

.mobilecfa4b-milebar {
  display: block;
  height: 100%;
  background: var(--mobilecfa4b-ink);
  opacity: 0.75;
}

/* --------------------------------------------------------------------------
   Offers module
   -------------------------------------------------------------------------- */

.mobilecfa4b-offerlist {
  border: 1px solid var(--mobilecfa4b-line);
  border-radius: var(--mobilecfa4b-radius);
  overflow: hidden;
}

.mobilecfa4b-offer {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px;
  background: var(--mobilecfa4b-wash);
  border-bottom: 1px solid var(--mobilecfa4b-line);
}

.mobilecfa4b-offer:last-child {
  border-bottom: 0;
}

.mobilecfa4b-offerkey {
  flex: 0 0 auto;
  margin-top: 3px;
  padding: 2px 8px;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: 6px;
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mobilecfa4b-ink-soft);
  white-space: nowrap;
}

.mobilecfa4b-offertext {
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--mobilecfa4b-ink);
}

.mobilecfa4b-offertext strong {
  font-weight: 700;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-offermore {
  margin: 10px 2px 0;
  font-size: 0.8rem;
  color: var(--mobilecfa4b-ink-soft);
}

.mobilecfa4b-offermore a {
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   Steps module
   -------------------------------------------------------------------------- */

.mobilecfa4b-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: mobilecfa4bstep;
}

.mobilecfa4b-step {
  counter-increment: mobilecfa4bstep;
  position: relative;
  padding: 0 0 16px 40px;
}

.mobilecfa4b-step::before {
  content: counter(mobilecfa4bstep, bengali);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-content: center;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-step::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: 2px;
  width: 1px;
  background: var(--mobilecfa4b-line);
}

.mobilecfa4b-step:last-child::after {
  display: none;
}

.mobilecfa4b-steptitle {
  display: block;
  font-size: 0.86rem;
  font-weight: 800;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-steptext {
  display: block;
  margin: 2px 0 0;
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--mobilecfa4b-ink);
}

/* --------------------------------------------------------------------------
   Scenario answers module
   -------------------------------------------------------------------------- */

.mobilecfa4b-qalist {
  display: grid;
  gap: 12px;
}

.mobilecfa4b-qa {
  padding: 2px 0 2px 12px;
  border-left: 2px solid var(--mobilecfa4b-line-strong);
}

.mobilecfa4b-q {
  margin: 0 0 4px;
  font-size: 0.86rem;
  font-weight: 800;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-a {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--mobilecfa4b-ink);
}

/* --------------------------------------------------------------------------
   Direct answer module
   -------------------------------------------------------------------------- */

.mobilecfa4b-direct {
  padding: 16px 14px;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: var(--mobilecfa4b-radius-lg);
  background: var(--mobilecfa4b-wash);
}

.mobilecfa4b-directp {
  margin: 0 0 14px;
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--mobilecfa4b-ink);
}

.mobilecfa4b-directp strong {
  font-weight: 700;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-duo {
  display: flex;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: var(--mobilecfa4b-radius);
  overflow: hidden;
}

.mobilecfa4b-duo .mobilecfa4b-segbtn {
  flex: 1;
  min-height: 46px;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.mobilecfa4b-duo .mobilecfa4b-segmain {
  border-right: 1px solid var(--mobilecfa4b-line);
}

/* --------------------------------------------------------------------------
   Extended site directory (index only)
   -------------------------------------------------------------------------- */

.mobilecfa4b-ext {
  margin: 34px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--mobilecfa4b-line);
}

.mobilecfa4b-extcols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 16px;
  margin: 0 0 18px;
}

.mobilecfa4b-dircap {
  grid-column: 1 / -1;
  margin: 0 0 6px;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mobilecfa4b-ink-soft);
}

.mobilecfa4b-dirlink {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 4px;
  border-bottom: 1px solid var(--mobilecfa4b-line);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--mobilecfa4b-ink);
  transition: color 0.25s var(--mobilecfa4b-ease);
}

.mobilecfa4b-dirlink:hover,
.mobilecfa4b-dirlink:focus-visible {
  color: var(--mobilecfa4b-ink-strong);
  text-decoration: none;
  border-bottom-color: var(--mobilecfa4b-line-strong);
}

.mobilecfa4b-dirlink svg {
  flex: 0 0 auto;
  color: var(--mobilecfa4b-ink-soft);
}

.mobilecfa4b-brandnote {
  margin: 0 0 16px;
  padding: 12px;
  border: 1px dashed var(--mobilecfa4b-line-strong);
  border-radius: var(--mobilecfa4b-radius);
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--mobilecfa4b-ink);
}

.mobilecfa4b-brandnote strong {
  font-weight: 800;
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-promogrid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0 0 18px;
}

.mobilecfa4b-promochip {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 46px;
  padding: 8px 11px;
  border: 1px solid var(--mobilecfa4b-line-strong);
  border-radius: var(--mobilecfa4b-radius);
  background: var(--mobilecfa4b-wash);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--mobilecfa4b-ink-strong);
  text-align: left;
  transition: transform 0.2s var(--mobilecfa4b-ease),
    background 0.25s var(--mobilecfa4b-ease);
}

.mobilecfa4b-promochip:hover,
.mobilecfa4b-promochip:focus-visible {
  transform: translateY(-2px);
  background: var(--mobilecfa4b-wash-strong);
}

.mobilecfa4b-promochip:last-child {
  grid-column: 1 / -1;
}

.mobilecfa4b-promochip svg {
  flex: 0 0 auto;
  color: var(--mobilecfa4b-ink);
}

.mobilecfa4b-disclaimer {
  margin: 0;
  padding: 12px;
  border-left: 2px solid var(--mobilecfa4b-line-strong);
  font-size: 0.72rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--mobilecfa4b-ink-soft);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.mobilecfa4b-footer {
  padding: 0 14px calc(var(--mobilecfa4b-dock-h) + 18px + env(safe-area-inset-bottom));
  text-align: center;
  font-size: 0.72rem;
  color: var(--mobilecfa4b-ink-soft);
  border-top: 1px solid var(--mobilecfa4b-line);
  padding-top: 14px;
}

/* --------------------------------------------------------------------------
   Floating dock (5 roles)
   -------------------------------------------------------------------------- */

.mobilecfa4b-dock {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  z-index: 85;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  height: calc(var(--mobilecfa4b-dock-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: rgba(31, 45, 57, 0.96);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--mobilecfa4b-line);
}

.mobilecfa4b-dockitem {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: var(--mobilecfa4b-dock-h);
  padding: 6px 2px;
  color: var(--mobilecfa4b-ink-soft);
  transition: color 0.25s var(--mobilecfa4b-ease);
}

.mobilecfa4b-dockitem:hover,
.mobilecfa4b-dockitem:focus-visible {
  color: var(--mobilecfa4b-ink);
  text-decoration: none;
}

.mobilecfa4b-dockicon {
  width: 22px;
  height: 22px;
}

.mobilecfa4b-docklabel {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
}

/* active role: label emphasis with a soft underline tick */
.mobilecfa4b-dockactive {
  color: var(--mobilecfa4b-ink-strong);
}

.mobilecfa4b-dockactive .mobilecfa4b-docklabel {
  font-weight: 800;
}

.mobilecfa4b-dockactive::after {
  content: "";
  position: absolute;
  bottom: 6px;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--mobilecfa4b-ink-strong);
}

/* promo roles get a slightly lifted tone */
.mobilecfa4b-dockpromo .mobilecfa4b-dockicon {
  color: var(--mobilecfa4b-ink-strong);
}

/* --------------------------------------------------------------------------
   Motion & accessibility
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.mobilecfa4b-sronly {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}