/* ============================================================
   kotk.homes - Mobile-first gaming interface
   Prefix: surface19540-
   Palette: #CD853F (warm peru/gold) | #3A3A3A (dark base)
            #4682B4 (steel blue) | #FF0000 (alert/hot)
            #87CEFA (light sky accent)
   Direction: round titles + compact body | small radius high density |
              light floating image cards | conclusion-first rhythm |
              focus-indicator slide | square high-contrast CTA |
              edge-aligned header | side drawer | center-raised bottom nav
   Breakpoint anchor: 430
   ============================================================ */

/* ---- Design tokens ---- */
:root {
  --surface19540-c-dark: #3A3A3A;
  --surface19540-c-deep: #2c2c2c;
  --surface19540-c-card: #454545;
  --surface19540-c-peru: #CD853F;
  --surface19540-c-peru-soft: #b06b2a;
  --surface19540-c-steel: #4682B4;
  --surface19540-c-steel-deep: #2f5d80;
  --surface19540-c-sky: #87CEFA;
  --surface19540-c-red: #FF0000;
  --surface19540-c-ink: #f4ede1;
  --surface19540-c-mute: #b9b1a4;
  --surface19540-c-line: rgba(135, 206, 250, 0.18);
  --surface19540-c-glow: rgba(205, 133, 63, 0.55);

  --surface19540-radius-xs: 4px;
  --surface19540-radius-sm: 6px;
  --surface19540-radius-md: 10px;
  --surface19540-radius-lg: 14px;

  --surface19540-shadow-card: 0 6px 14px rgba(0, 0, 0, 0.38);
  --surface19540-shadow-float: 0 10px 22px rgba(0, 0, 0, 0.45);
  --surface19540-shadow-raised: 0 -6px 18px rgba(205, 133, 63, 0.35);

  --surface19540-font-title: "Baloo Da 2", "Hind Siliguri", "Noto Sans Bengali", system-ui, sans-serif;
  --surface19540-font-body: "Hind Siliguri", "Noto Sans Bengali", system-ui, sans-serif;

  --surface19540-header-h: 58px;
  --surface19540-bottom-h: 68px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--surface19540-font-body);
  background: var(--surface19540-c-dark);
  color: var(--surface19540-c-ink);
  line-height: 1.55;
  font-size: 15px;
  min-height: 100vh;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--surface19540-c-sky); text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--surface19540-c-sky);
  outline-offset: 2px;
}
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
h1, h2, h3, h4 { font-family: var(--surface19540-font-title); font-weight: 700; line-height: 1.25; margin: 0 0 .5em; }

/* ---- Mobile canvas stage ----
   Phone-first canvas; on wider screens the stage stays centered. */
.surface19540-stage {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  min-height: 100vh;
  background:
    radial-gradient(120% 60% at 50% -10%, rgba(70, 130, 180, 0.18), transparent 60%),
    linear-gradient(180deg, #3a3a3a 0%, #2f2f2f 40%, #2c2c2c 100%);
  position: relative;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.6);
  padding-bottom: calc(var(--surface19540-bottom-h) + 24px);
}

/* ============================================================
   Header (edge-aligned functional head)
   ============================================================ */
.surface19540-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  height: var(--surface19540-header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: linear-gradient(180deg, rgba(44, 44, 44, 0.98), rgba(58, 58, 58, 0.94));
  border-bottom: 1px solid var(--surface19540-c-line);
  backdrop-filter: blur(6px);
}

.surface19540-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.surface19540-brand-logo {
  width: 36px;
  height: 36px;
  border-radius: var(--surface19540-radius-sm);
  object-fit: cover;
  border: 1px solid var(--surface19540-c-peru);
  background: #1c1c1c;
  flex-shrink: 0;
}
.surface19540-brand-name {
  font-family: var(--surface19540-font-title);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.5px;
  color: var(--surface19540-c-peru);
  text-transform: lowercase;
  white-space: nowrap;
}
.surface19540-brand-name::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-left: 6px;
  background: var(--surface19540-c-red);
  border-radius: 50%;
  vertical-align: middle;
}

.surface19540-head-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}
.surface19540-btn-register,
.surface19540-btn-login {
  font-family: var(--surface19540-font-body);
  font-weight: 700;
  font-size: 13px;
  padding: 9px 14px;
  border-radius: var(--surface19540-radius-xs);
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.surface19540-btn-register {
  background: var(--surface19540-c-peru);
  color: #1c1c1c;
  box-shadow: 0 2px 0 var(--surface19540-c-peru-soft);
}
.surface19540-btn-register:hover { background: #d99347; }
.surface19540-btn-register:active { transform: translateY(1px); box-shadow: 0 1px 0 var(--surface19540-c-peru-soft); }
.surface19540-btn-login {
  background: transparent;
  color: var(--surface19540-c-sky);
  border: 1px solid var(--surface19540-c-steel);
}
.surface19540-btn-login:active { transform: translateY(1px); }
.surface19540-btn-login:hover { background: rgba(70, 130, 180, 0.15); }

.surface19540-menu-toggle {
  width: 38px;
  height: 38px;
  border-radius: var(--surface19540-radius-xs);
  border: 1px solid var(--surface19540-c-line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(135, 206, 250, 0.06);
}
.surface19540-menu-toggle:hover { background: rgba(135, 206, 250, 0.12); }
.surface19540-menu-toggle-bar,
.surface19540-menu-toggle-bar::before,
.surface19540-menu-toggle-bar::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: var(--surface19540-c-sky);
  border-radius: 2px;
  position: relative;
}
.surface19540-menu-toggle-bar::before { position: absolute; top: -6px; }
.surface19540-menu-toggle-bar::after  { position: absolute; top: 6px; }

/* ============================================================
   Side drawer menu
   ============================================================ */
.surface19540-drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
  z-index: 90;
}
.surface19540-drawer-mask.open { opacity: 1; pointer-events: auto; }

.surface19540-drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: 82%;
  max-width: 320px;
  background: linear-gradient(180deg, #2c2c2c, #1f1f1f);
  border-left: 1px solid var(--surface19540-c-line);
  transform: translateX(110%);
  transition: transform .28s cubic-bezier(.4, .2, .2, 1);
  z-index: 100;
  padding: 18px 16px calc(var(--surface19540-bottom-h) + 18px);
  overflow-y: auto;
}
.surface19540-drawer.open { transform: translateX(0); box-shadow: -10px 0 30px rgba(0,0,0,.5); }
.surface19540-drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--surface19540-c-line);
}
.surface19540-drawer-head-title {
  font-family: var(--surface19540-font-title);
  font-size: 17px;
  color: var(--surface19540-c-peru);
  font-weight: 700;
}
.surface19540-drawer-close {
  width: 34px; height: 34px;
  border-radius: var(--surface19540-radius-xs);
  border: 1px solid var(--surface19540-c-line);
  color: var(--surface19540-c-sky);
  font-size: 18px;
  line-height: 1;
}
.surface19540-drawer-list { list-style: none; padding: 0; margin: 0; }
.surface19540-drawer-section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--surface19540-c-mute);
  margin: 14px 4px 6px;
}
.surface19540-drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 12px;
  margin: 4px 0;
  border-radius: var(--surface19540-radius-sm);
  color: var(--surface19540-c-ink);
  font-size: 14.5px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background .15s ease, border-color .15s ease;
}
.surface19540-drawer-link:hover {
  background: rgba(70, 130, 180, 0.14);
  border-color: var(--surface19540-c-line);
}
.surface19540-drawer-link-arrow {
  color: var(--surface19540-c-peru);
  font-size: 13px;
}
.surface19540-drawer-promo-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 14px;
}
.surface19540-drawer-promo {
  padding: 12px 8px;
  text-align: center;
  background: var(--surface19540-c-peru);
  color: #1c1c1c;
  border-radius: var(--surface19540-radius-xs);
  font-weight: 700;
  font-size: 13.5px;
}
.surface19540-drawer-promo.alt {
  background: transparent;
  color: var(--surface19540-c-sky);
  border: 1px solid var(--surface19540-c-steel);
}
.surface19540-drawer-foot {
  margin-top: 18px;
  padding: 12px;
  border-radius: var(--surface19540-radius-sm);
  background: rgba(135, 206, 250, 0.06);
  font-size: 12px;
  color: var(--surface19540-c-mute);
}

/* ============================================================
   Hero carousel
   ============================================================ */
.surface19540-hero {
  padding: 14px 12px 4px;
}
.surface19540-carousel {
  position: relative;
  border-radius: var(--surface19540-radius-md);
  overflow: hidden;
  background: #1c1c1c;
  box-shadow: var(--surface19540-shadow-card);
  border: 1px solid var(--surface19540-c-line);
}
.surface19540-slide-track {
  display: flex;
  transition: transform .42s cubic-bezier(.4, .2, .2, 1);
  will-change: transform;
}
.surface19540-slide {
  flex: 0 0 100%;
  position: relative;
}
.surface19540-slide-img {
  width: 100%;
  height: 178px;
  object-fit: cover;
  display: block;
}
.surface19540-slide-cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 14px 14px 12px;
  background: linear-gradient(0deg, rgba(0,0,0,.82) 0%, rgba(0,0,0,.35) 70%, transparent 100%);
  color: var(--surface19540-c-ink);
}
.surface19540-slide-cap-eyebrow {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 1px;
  background: var(--surface19540-c-red);
  color: #fff;
  padding: 3px 8px;
  border-radius: var(--surface19540-radius-xs);
  margin-bottom: 6px;
  font-weight: 700;
}
.surface19540-slide-cap-title {
  font-family: var(--surface19540-font-title);
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--surface19540-c-peru);
}
.surface19540-slide-cap-text {
  font-size: 12.5px;
  color: var(--surface19540-c-ink);
  opacity: .9;
  margin: 0;
}
.surface19540-slide-cta {
  display: inline-block;
  margin-top: 8px;
  background: var(--surface19540-c-peru);
  color: #1c1c1c;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--surface19540-radius-xs);
}
.surface19540-carousel-dots {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 4;
}
.surface19540-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(244, 237, 225, 0.4);
  transition: background .2s ease, transform .2s ease;
  padding: 0;
}
.surface19540-dot.active {
  background: var(--surface19540-c-peru);
  transform: scale(1.25);
}

/* ============================================================
   Section common
   ============================================================ */
.surface19540-section {
  padding: 18px 12px 6px;
}
.surface19540-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--surface19540-c-line);
  position: relative;
}
.surface19540-section-head::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 38px;
  height: 3px;
  background: var(--surface19540-c-peru);
  border-radius: 2px;
}
.surface19540-section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--surface19540-c-ink);
  margin: 0;
  font-family: var(--surface19540-font-title);
}
.surface19540-section-title .surface19540-section-title-mark {
  color: var(--surface19540-c-peru);
}
.surface19540-section-link {
  font-size: 12px;
  color: var(--surface19540-c-sky);
  font-weight: 600;
}
.surface19540-section-intro {
  font-size: 13px;
  color: var(--surface19540-c-mute);
  margin: 0 0 12px;
  line-height: 1.6;
}

/* ============================================================
   Game grid (light floating image card)
   ============================================================ */
.surface19540-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.surface19540-game-card {
  display: block;
  background: linear-gradient(180deg, #4a4a4a, #383838);
  border-radius: var(--surface19540-radius-sm);
  padding: 5px;
  border: 1px solid var(--surface19540-c-line);
  box-shadow: var(--surface19540-shadow-card);
  transition: transform .15s ease, box-shadow .2s ease;
  text-align: center;
  cursor: pointer;
}
.surface19540-game-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--surface19540-shadow-float);
  border-color: var(--surface19540-c-peru);
}
.surface19540-game-card:active { transform: translateY(0); }
.surface19540-game-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--surface19540-radius-xs);
  background: #1c1c1c;
  display: block;
}
.surface19540-game-name {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--surface19540-c-ink);
  margin-top: 5px;
  display: block;
  line-height: 1.25;
  min-height: 28px;
  word-break: break-word;
}
.surface19540-game-badge {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
  background: var(--surface19540-c-red);
  color: #fff;
  position: relative;
}

/* ---- Category strip ---- */
.surface19540-cat-strip {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 4px 0 10px;
  margin: 0 -2px;
  padding-left: 2px;
  scrollbar-width: none;
}
.surface19540-cat-strip::-webkit-scrollbar { display: none; }
.surface19540-cat-chip {
  flex: 0 0 auto;
  padding: 7px 14px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--surface19540-c-ink);
  border: 1px solid var(--surface19540-c-line);
  border-radius: var(--surface19540-radius-xs);
  background: rgba(135, 206, 250, 0.05);
  white-space: nowrap;
}

/* ============================================================
   Text / module blocks (conclusion-first rhythm)
   ============================================================ */
.surface19540-prose {
  padding: 4px 12px;
  font-size: 14px;
  color: var(--surface19540-c-ink);
  line-height: 1.75;
}
.surface19540-prose p { margin: 0 0 12px; }
.surface19540-prose h2 {
  font-size: 18px;
  color: var(--surface19540-c-peru);
  margin-top: 22px;
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--surface19540-c-line);
}
.surface19540-prose h3 {
  font-size: 15px;
  color: var(--surface19540-c-sky);
  margin-top: 14px;
}
.surface19540-prose a {
  color: var(--surface19540-c-peru);
  border-bottom: 1px dotted var(--surface19540-c-peru-soft);
}
.surface19540-prose a:hover { color: var(--surface19540-c-sky); border-color: var(--surface19540-c-sky); }
.surface19540-prose strong { color: #fff; }

.surface19540-lead {
  background: rgba(70, 130, 180, 0.10);
  border-left: 3px solid var(--surface19540-c-steel);
  padding: 12px 14px;
  border-radius: 0 var(--surface19540-radius-sm) var(--surface19540-radius-sm) 0;
  margin: 0 12px 14px;
  font-size: 13.5px;
  color: var(--surface19540-c-ink);
}
.surface19540-lead strong { color: var(--surface19540-c-peru); }

/* ---- Guide module (Game Selection Guide) ---- */
.surface19540-guide {
  margin: 0 12px 16px;
  background: linear-gradient(180deg, #404040, #343434);
  border: 1px solid var(--surface19540-c-line);
  border-radius: var(--surface19540-radius-md);
  padding: 14px;
}
.surface19540-guide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 10px;
}
.surface19540-guide-item {
  padding: 10px 12px;
  background: rgba(135, 206, 250, 0.05);
  border-left: 3px solid var(--surface19540-c-peru);
  border-radius: var(--surface19540-radius-xs);
}
.surface19540-guide-item-h {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--surface19540-c-peru);
  margin: 0 0 4px;
}
.surface19540-guide-item-p {
  font-size: 12.5px;
  color: var(--surface19540-c-ink);
  margin: 0;
  line-height: 1.6;
}

/* ---- Tricks module ---- */
.surface19540-tricks {
  margin: 0 12px 16px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
.surface19540-trick {
  display: flex;
  gap: 10px;
  padding: 10px 12px;
  background: #3a3a3a;
  border: 1px solid var(--surface19540-c-line);
  border-radius: var(--surface19540-radius-sm);
  align-items: flex-start;
}
.surface19540-trick-num {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--surface19540-c-steel);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.surface19540-trick-body { flex: 1; }
.surface19540-trick-h {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--surface19540-c-sky);
  margin: 0 0 3px;
}
.surface19540-trick-p {
  font-size: 12.5px;
  color: var(--surface19540-c-ink);
  margin: 0;
  line-height: 1.6;
}

/* ---- Step summary module ---- */
.surface19540-steps {
  margin: 0 12px 16px;
  background: linear-gradient(180deg, #2f5d80, #234259);
  border-radius: var(--surface19540-radius-md);
  padding: 14px;
  border: 1px solid var(--surface19540-c-steel);
}
.surface19540-steps-title {
  font-family: var(--surface19540-font-title);
  font-size: 15px;
  color: #fff;
  margin: 0 0 10px;
}
.surface19540-step {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 0;
  border-top: 1px dashed rgba(135, 206, 250, 0.3);
}
.surface19540-step:first-of-type { border-top: 0; }
.surface19540-step-num {
  flex: 0 0 22px;
  font-family: var(--surface19540-font-title);
  font-size: 16px;
  font-weight: 700;
  color: var(--surface19540-c-peru);
}
.surface19540-step-text {
  font-size: 13px;
  color: var(--surface19540-c-ink);
  line-height: 1.6;
}
.surface19540-step-text strong { color: #fff; }

/* ---- Entity relationship module ---- */
.surface19540-entity {
  margin: 0 12px 18px;
  background: #343434;
  border-radius: var(--surface19540-radius-md);
  padding: 14px;
  border: 1px solid var(--surface19540-c-line);
}
.surface19540-entity-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid var(--surface19540-c-line);
  font-size: 12.5px;
  align-items: center;
}
.surface19540-entity-row:first-of-type { border-top: 0; }
.surface19540-entity-key {
  color: var(--surface19540-c-peru);
  font-weight: 700;
}
.surface19540-entity-val {
  color: var(--surface19540-c-ink);
  line-height: 1.55;
}

/* ---- Inline promo banner ---- */
.surface19540-inline-promo {
  margin: 8px 12px 16px;
  padding: 12px 14px;
  border-radius: var(--surface19540-radius-md);
  background: linear-gradient(95deg, #b06b2a 0%, #CD853F 50%, #d99347 100%);
  color: #1c1c1c;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  box-shadow: 0 6px 16px rgba(205, 133, 63, 0.28);
}
.surface19540-inline-promo-text { flex: 1; min-width: 0; }
.surface19540-inline-promo-h {
  font-family: var(--surface19540-font-title);
  font-size: 15px;
  font-weight: 800;
  margin: 0 0 2px;
}
.surface19540-inline-promo-p {
  font-size: 12px;
  margin: 0;
  opacity: .85;
}
.surface19540-inline-promo-btn {
  flex: 0 0 auto;
  background: #1c1c1c;
  color: var(--surface19540-c-peru);
  padding: 8px 14px;
  font-size: 12.5px;
  font-weight: 700;
  border-radius: var(--surface19540-radius-xs);
  white-space: nowrap;
}

/* ============================================================
   Extended footer (homepage-only)
   ============================================================ */
.surface19540-ext {
  margin: 18px 12px 8px;
  padding: 16px;
  border-radius: var(--surface19540-radius-md);
  background: linear-gradient(180deg, #2c2c2c, #232323);
  border: 1px solid var(--surface19540-c-line);
}
.surface19540-ext-brand {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--surface19540-c-line);
}
.surface19540-ext-brand-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--surface19540-radius-sm);
  border: 1px solid var(--surface19540-c-peru);
}
.surface19540-ext-brand-text {
  font-size: 12.5px;
  color: var(--surface19540-c-mute);
  line-height: 1.55;
  margin: 0;
}
.surface19540-ext-brand-text strong { color: var(--surface19540-c-peru); font-size: 14px; }

.surface19540-ext-block-h {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--surface19540-c-sky);
  margin: 14px 0 8px;
}
.surface19540-ext-promos {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
}
.surface19540-ext-promo {
  padding: 9px 4px;
  text-align: center;
  background: var(--surface19540-c-peru);
  color: #1c1c1c;
  border-radius: var(--surface19540-radius-xs);
  font-size: 11px;
  font-weight: 700;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.2;
}
.surface19540-ext-promo.alt {
  background: transparent;
  color: var(--surface19540-c-sky);
  border: 1px solid var(--surface19540-c-steel);
}

.surface19540-ext-dir {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 4px;
}
.surface19540-ext-dir-link {
  font-size: 12px;
  color: var(--surface19540-c-ink);
  padding: 8px 10px;
  background: rgba(135, 206, 250, 0.05);
  border-radius: var(--surface19540-radius-xs);
  border-left: 2px solid var(--surface19540-c-steel);
  line-height: 1.35;
}
.surface19540-ext-dir-link:hover {
  background: rgba(135, 206, 250, 0.12);
  color: var(--surface19540-c-sky);
}
.surface19540-ext-disclaimer {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: var(--surface19540-radius-sm);
  background: rgba(255, 0, 0, 0.06);
  border-left: 3px solid var(--surface19540-c-red);
  font-size: 11.5px;
  color: var(--surface19540-c-mute);
  line-height: 1.6;
}

/* ============================================================
   Footer (copyright only)
   ============================================================ */
.surface19540-foot {
  text-align: center;
  padding: 16px 14px 8px;
  font-size: 11.5px;
  color: var(--surface19540-c-mute);
  border-top: 1px solid var(--surface19540-c-line);
  margin: 12px 12px 0;
}
.surface19540-foot-copy { margin: 0; }
.surface19540-foot-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px 10px;
  margin-top: 6px;
  font-size: 11px;
}
.surface19540-foot-links a {
  color: var(--surface19540-c-mute);
}
.surface19540-foot-links a:hover { color: var(--surface19540-c-sky); }

/* ============================================================
   Bottom navigation (center-raised)
   ============================================================ */
.surface19540-bottom-nav {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 100%;
  max-width: 430px;
  height: var(--surface19540-bottom-h);
  background: linear-gradient(180deg, rgba(44, 44, 44, 0.96), rgba(28, 28, 28, 0.99));
  border-top: 1px solid var(--surface19540-c-line);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: flex-end;
  padding: 6px 4px 8px;
  z-index: 80;
  box-shadow: 0 -4px 18px rgba(0, 0, 0, 0.45);
}
.surface19540-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 3px;
  height: 100%;
  color: var(--surface19540-c-mute);
  font-size: 10.5px;
  font-weight: 600;
  text-align: center;
  padding-top: 4px;
  position: relative;
  transition: color .15s ease, transform .15s ease;
}
.surface19540-nav-item:hover { color: var(--surface19540-c-sky); }
.surface19540-nav-item.active { color: var(--surface19540-c-peru); }
.surface19540-nav-item.active .surface19540-nav-icon { transform: translateY(-2px); }

.surface19540-nav-icon {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
/* Two-tone role icons (SVG-like CSS shapes) */
.surface19540-nav-icon-home {
  width: 16px; height: 14px;
  background: linear-gradient(180deg, currentColor 0 55%, transparent 55% 100%);
  clip-path: polygon(50% 0, 100% 55%, 85% 55%, 85% 100%, 15% 100%, 15% 55%, 0 55%);
}
.surface19540-nav-icon-game {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid currentColor;
  position: relative;
}
.surface19540-nav-icon-game::after {
  content: ""; position: absolute; inset: 3px;
  border-radius: 50%; background: currentColor; opacity: .45;
}
.surface19540-nav-icon-help {
  width: 14px; height: 14px; border: 2px solid currentColor;
  border-radius: 50%; position: relative;
}
.surface19540-nav-icon-help::after {
  content: "?"; position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 9px; font-weight: 800; color: currentColor;
  font-family: var(--surface19540-font-title);
}
.surface19540-nav-icon-promo {
  width: 18px; height: 18px; border-radius: 4px;
  background: currentColor; position: relative;
}
.surface19540-nav-icon-promo::after {
  content: ""; position: absolute; inset: 4px;
  background: var(--surface19540-c-dark); border-radius: 2px;
}
.surface19540-nav-label {
  font-size: 10.5px;
  line-height: 1.1;
  max-width: 56px;
}

/* Center raised CTA */
.surface19540-nav-item-raised {
  align-self: flex-end;
  position: relative;
}
.surface19540-nav-item-raised .surface19540-nav-icon-wrap {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(180deg, #d99347, #b06b2a);
  border: 3px solid #2c2c2c;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(205, 133, 63, 0.55), var(--surface19540-shadow-raised);
  color: #1c1c1c;
  transition: transform .2s ease;
}
.surface19540-nav-item-raised:hover .surface19540-nav-icon-wrap {
  transform: translateX(-50%) translateY(-3px);
}
.surface19540-nav-item-raised .surface19540-nav-icon-promo {
  background: #1c1c1c;
  width: 22px; height: 22px;
}
.surface19540-nav-item-raised .surface19540-nav-icon-promo::after {
  background: var(--surface19540-c-peru);
}
.surface19540-nav-item-raised .surface19540-nav-label {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  font-weight: 700;
  color: var(--surface19540-c-peru);
  font-size: 10px;
}

/* ============================================================
   Responsive — at 430px breakpoint relax grid to 5 columns
   ============================================================ */
@media (min-width: 430px) {
  .surface19540-game-grid { grid-template-columns: repeat(5, 1fr); gap: 10px; }
  .surface19540-slide-img { height: 200px; }
  .surface19540-ext-promos { gap: 8px; }
  body { font-size: 15.5px; }
}

@media (min-width: 480px) {
  .surface19540-guide-grid,
  .surface19540-tricks { grid-template-columns: 1fr 1fr; }
}

/* Help and review page additions */
.surface19540-page-title { font-size: 22px; color: var(--surface19540-c-peru); margin: 0 0 10px; }
.surface19540-kicker { color: var(--surface19540-c-sky); font-size: 11px; letter-spacing: 1.4px; text-transform: uppercase; margin: 0 0 5px; font-weight: 700; }
.surface19540-help-hero { padding-top: 24px; background: linear-gradient(135deg, rgba(70,130,180,.18), rgba(205,133,63,.08)); }
.surface19540-hero-copy { color: var(--surface19540-c-ink); font-size: 14px; line-height: 1.75; margin: 0 0 14px; }
.surface19540-help-cta, .surface19540-wide-cta { background: var(--surface19540-c-peru); color: #1c1c1c; min-height: 44px; padding: 10px 16px; border-radius: var(--surface19540-radius-xs); font-weight: 800; }
.surface19540-callout { margin: 12px; padding: 14px; border: 1px solid var(--surface19540-c-peru); border-left: 4px solid var(--surface19540-c-red); background: rgba(255,0,0,.06); border-radius: var(--surface19540-radius-sm); font-size: 13px; }
.surface19540-callout button, .surface19540-section-intro button, .surface19540-help-list button, .surface19540-numbered button, .surface19540-compare button, .surface19540-answer button { color: var(--surface19540-c-peru); text-decoration: underline; font-weight: 700; padding: 2px; }
.surface19540-help-list, .surface19540-numbered { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.surface19540-help-list > div, .surface19540-numbered li { padding: 12px; background: rgba(135,206,250,.06); border-left: 3px solid var(--surface19540-c-steel); border-radius: var(--surface19540-radius-xs); font-size: 13px; }
.surface19540-numbered { counter-reset: tips; }
.surface19540-numbered li { counter-increment: tips; padding-left: 38px; position: relative; }
.surface19540-numbered li::before { content: counter(tips); position: absolute; left: 12px; top: 12px; color: var(--surface19540-c-peru); font-weight: 800; }
.surface19540-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.surface19540-compare > div { padding: 12px; background: #343434; border-top: 3px solid var(--surface19540-c-peru); }
.surface19540-compare span { color: var(--surface19540-c-sky); font-weight: 800; font-size: 12px; }
.surface19540-compare p { margin: 7px 0 0; font-size: 12.5px; line-height: 1.6; }
.surface19540-checklist { margin: 16px 12px; padding: 16px; border-radius: var(--surface19540-radius-md); background: linear-gradient(145deg,#2f5d80,#343434); border: 1px solid var(--surface19540-c-steel); display: grid; gap: 10px; }
.surface19540-checklist h2, .surface19540-scoreboard h2, .surface19540-review-note h2 { color: var(--surface19540-c-peru); font-size: 18px; }
.surface19540-checklist label { font-size: 13px; min-height: 30px; }
.surface19540-checklist input { accent-color: var(--surface19540-c-peru); margin-right: 8px; }
.surface19540-quote, .surface19540-review-note { margin: 16px 12px; padding: 16px; background: #343434; border-left: 4px solid var(--surface19540-c-peru); border-radius: var(--surface19540-radius-sm); }
.surface19540-quote p { margin: 0 0 10px; font-size: 15px; font-style: italic; }
.surface19540-quote button, .surface19540-review-note button { background: var(--surface19540-c-steel); color: #fff; padding: 10px 14px; border-radius: var(--surface19540-radius-xs); font-weight: 700; min-height: 44px; }
.surface19540-review-banner { margin: 14px 12px; padding: 18px; border-radius: var(--surface19540-radius-md); background: linear-gradient(125deg,#2f5d80,#3a3a3a 58%,#6b4427); box-shadow: var(--surface19540-shadow-card); }
.surface19540-review-banner p { font-size: 13.5px; line-height: 1.7; margin: 0 0 12px; }
.surface19540-review-banner > button { background: var(--surface19540-c-peru); color: #1c1c1c; padding: 10px 14px; min-height: 44px; border-radius: var(--surface19540-radius-xs); font-weight: 800; }
.surface19540-scoreboard { margin: 16px 12px; padding: 14px; background: #232323; border: 1px solid var(--surface19540-c-line); border-radius: var(--surface19540-radius-md); }
.surface19540-score-row { display: grid; grid-template-columns: 96px 1fr; gap: 9px; padding: 10px 0; border-top: 1px solid var(--surface19540-c-line); font-size: 12.5px; }
.surface19540-score-row b { color: var(--surface19540-c-sky); }
.surface19540-score-row button { color: var(--surface19540-c-peru); text-decoration: underline; font-weight: 700; }
.surface19540-evidence { display: grid; gap: 8px; }
.surface19540-evidence > div { padding: 11px; background: rgba(205,133,63,.1); border-right: 3px solid var(--surface19540-c-peru); }
.surface19540-evidence b { color: var(--surface19540-c-peru); font-size: 13px; }
.surface19540-evidence p { margin: 4px 0 0; font-size: 12.5px; }
.surface19540-dark-panel { background: rgba(28,28,28,.35); }
.surface19540-flow { display: flex; gap: 4px; overflow-x: auto; padding: 10px 0 3px; white-space: nowrap; }
.surface19540-flow span { background: var(--surface19540-c-steel-deep); padding: 8px; border-radius: 3px; font-size: 11px; }
.surface19540-flow i { color: var(--surface19540-c-peru); align-self: center; }
.surface19540-mistakes { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.surface19540-mistakes article { padding: 11px; background: #3c3c3c; border-top: 3px solid var(--surface19540-c-red); }
.surface19540-mistakes h3 { color: var(--surface19540-c-sky); font-size: 13px; margin: 0 0 5px; }
.surface19540-mistakes p { font-size: 12px; line-height: 1.55; margin: 0; }
.surface19540-review-list { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 6px; }
.surface19540-review-list li { padding: 10px; background: rgba(135,206,250,.06); font-size: 13px; border-radius: 3px; }
.surface19540-review-list span { color: var(--surface19540-c-peru); font-weight: 900; margin-right: 6px; }
.surface19540-answer { display: grid; gap: 10px; }
.surface19540-answer p { margin: 0; padding: 12px; background: #343434; font-size: 13px; line-height: 1.7; border-left: 3px solid var(--surface19540-c-steel); }
.surface19540-review-note p { font-size: 13px; line-height: 1.7; }

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}