/* ============================================================
   Nino Games - nino-games.cyou
   Mobile-first display stylesheet (320-430px phone canvas)
   Class prefix : surface6fb4d-
   Design tone  : rounded headings + compact body, small-radius
                  high density, compact square game catalog,
                  light press feedback and color transitions.
   ============================================================ */

/* ---------- tokens ---------- */
:root {
  --surface6fb4d-bg-deep: #0e1117;
  --surface6fb4d-bg: #141821;
  --surface6fb4d-panel: #1b202b;
  --surface6fb4d-panel-2: #212734;
  --surface6fb4d-panel-3: #273043;
  --surface6fb4d-line: #2e3646;
  --surface6fb4d-line-soft: #262e3c;
  --surface6fb4d-steel: #4682b4;
  --surface6fb4d-violet: #8470ff;
  --surface6fb4d-blue: #1e90ff;
  --surface6fb4d-royal: #0000cd;
  --surface6fb4d-text: #eef2f9;
  --surface6fb4d-text-dim: #a7b3c6;
  --surface6fb4d-text-faint: #7c889c;
  --surface6fb4d-accent: #6fb4ff;
  --surface6fb4d-accent-2: #a698ff;
  --surface6fb4d-grad-cta: linear-gradient(135deg, #1e90ff 0%, #8470ff 100%);
  --surface6fb4d-grad-hero: linear-gradient(160deg, #161c2c 0%, #101627 55%, #0d1224 100%);
  --surface6fb4d-grad-chip: linear-gradient(135deg, rgba(30, 144, 255, 0.22), rgba(132, 112, 255, 0.22));
  --surface6fb4d-font-round: "Trebuchet MS", "Segoe UI", Verdana, "DejaVu Sans", sans-serif;
  --surface6fb4d-font-body: system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --surface6fb4d-radius-s: 6px;
  --surface6fb4d-radius-m: 9px;
  --surface6fb4d-radius-l: 12px;
  --surface6fb4d-tap: 44px;
  --surface6fb4d-header-h: 60px;
  --surface6fb4d-bottomnav-h: 64px;
}

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

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

body {
  margin: 0;
  font-family: var(--surface6fb4d-font-body);
  font-size: 14px;
  line-height: 1.55;
  color: var(--surface6fb4d-text);
  background:
    radial-gradient(900px 420px at 50% -120px, rgba(70, 130, 180, 0.16), transparent 70%),
    var(--surface6fb4d-bg-deep);
  min-height: 100vh;
}

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

button { font-family: inherit; }

a { color: var(--surface6fb4d-accent); }

:focus-visible {
  outline: 2px solid var(--surface6fb4d-blue);
  outline-offset: 2px;
  border-radius: 4px;
}

::selection { background: rgba(132, 112, 255, 0.45); }

/* ---------- phone canvas shell ---------- */
.surface6fb4d-shell {
  position: relative;
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--surface6fb4d-bg);
  overflow-x: hidden;
}

@media (min-width: 431px) {
  .surface6fb4d-shell {
    box-shadow: 0 0 0 1px var(--surface6fb4d-line-soft), 0 18px 60px rgba(0, 0, 0, 0.55);
  }
}

/* ---------- skip link ---------- */
.surface6fb4d-skip {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 90;
  background: var(--surface6fb4d-blue);
  color: #fff;
  padding: 10px 14px;
  border-radius: var(--surface6fb4d-radius-m);
  font-weight: 700;
  transition: top 0.2s ease;
}

.surface6fb4d-skip:focus { top: 8px; }

/* ---------- fixed top bar ---------- */
.surface6fb4d-topbar {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  z-index: 50;
  background: rgba(17, 21, 30, 0.92);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--surface6fb4d-line-soft);
}

.surface6fb4d-bar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: var(--surface6fb4d-header-h);
  padding: 8px 12px;
}

/* brand area: logo + name only */
.surface6fb4d-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.surface6fb4d-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--surface6fb4d-radius-m);
  object-fit: cover;
  flex: 0 0 auto;
  box-shadow: 0 2px 10px rgba(30, 144, 255, 0.28);
}

.surface6fb4d-wordmark {
  font-family: var(--surface6fb4d-font-round);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.2px;
  line-height: 1.1;
  white-space: nowrap;
  background: linear-gradient(120deg, #f4f7ff 20%, var(--surface6fb4d-accent-2) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #f4f7ff;
}

/* header actions live outside the brand area */
.surface6fb4d-actions {
  display: flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
}

/* ---------- buttons ---------- */
.surface6fb4d-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: var(--surface6fb4d-tap);
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--surface6fb4d-radius-m);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.15px;
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.2s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.surface6fb4d-btn:active { transform: scale(0.96); }

.surface6fb4d-btn-primary {
  background: var(--surface6fb4d-grad-cta);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(30, 144, 255, 0.32);
}

.surface6fb4d-btn-primary:hover { filter: brightness(1.1); }

.surface6fb4d-btn-ghost {
  background: rgba(30, 144, 255, 0.08);
  border-color: var(--surface6fb4d-line);
  color: var(--surface6fb4d-text);
}

.surface6fb4d-btn-ghost:hover {
  border-color: var(--surface6fb4d-steel);
  color: #ffffff;
}

.surface6fb4d-btn-sm {
  padding: 6px 12px;
  font-size: 12.5px;
  min-height: 40px;
}

/* menu trigger (borderless symbol) */
.surface6fb4d-menu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--surface6fb4d-tap);
  height: var(--surface6fb4d-tap);
  border: 0;
  border-radius: var(--surface6fb4d-radius-m);
  background: transparent;
  color: var(--surface6fb4d-text);
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease;
}

.surface6fb4d-menu-btn:hover { background: rgba(30, 144, 255, 0.12); }
.surface6fb4d-menu-btn:active { transform: scale(0.92); }

.surface6fb4d-menu-btn svg { width: 24px; height: 24px; display: block; }

.surface6fb4d-menu-btn.is-open .surface6fb4d-ic-burger { display: none; }
.surface6fb4d-menu-btn .surface6fb4d-ic-close { display: none; }
.surface6fb4d-menu-btn.is-open .surface6fb4d-ic-close { display: block; }

/* ---------- layered dropdown menu ---------- */
.surface6fb4d-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 0;
  overflow: hidden;
  background: #171c27;
  border-bottom: 1px solid transparent;
  transition: max-height 0.3s ease, border-color 0.3s ease;
  z-index: 49;
}

.surface6fb4d-menu.is-open {
  max-height: 560px;
  border-bottom-color: var(--surface6fb4d-line-soft);
  box-shadow: 0 22px 44px rgba(0, 0, 0, 0.5);
}

.surface6fb4d-menu-inner {
  padding: 10px 12px 16px;
  display: grid;
  gap: 4px;
}

.surface6fb4d-menu-group {
  padding: 8px 2px 2px;
  border-top: 1px dashed var(--surface6fb4d-line-soft);
}

.surface6fb4d-menu-group:first-child { border-top: 0; }

.surface6fb4d-menu-label {
  display: block;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--surface6fb4d-text-faint);
  padding: 4px 4px 6px;
}

.surface6fb4d-menu-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px 8px;
}

.surface6fb4d-menu-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  min-height: var(--surface6fb4d-tap);
  padding: 9px 10px;
  border-radius: var(--surface6fb4d-radius-s);
  color: var(--surface6fb4d-text);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  background: transparent;
  transition: background-color 0.18s ease, color 0.18s ease, transform 0.15s ease;
}

.surface6fb4d-menu-link:hover {
  background: rgba(30, 144, 255, 0.12);
  color: #ffffff;
}

.surface6fb4d-menu-link:active { transform: scale(0.97); }

.surface6fb4d-menu-link .surface6fb4d-menu-hint {
  font-size: 10px;
  font-weight: 500;
  color: var(--surface6fb4d-text-faint);
  white-space: nowrap;
}

.surface6fb4d-menu-link[aria-current="page"] {
  background: var(--surface6fb4d-grad-chip);
  color: #ffffff;
}

.surface6fb4d-menu-cta {
  margin-top: 10px;
  display: flex;
  gap: 8px;
}

.surface6fb4d-menu-cta .surface6fb4d-btn { flex: 1; }

/* ---------- main column ---------- */
.surface6fb4d-main {
  padding-top: var(--surface6fb4d-header-h);
  padding-bottom: calc(var(--surface6fb4d-bottomnav-h) + 20px + env(safe-area-inset-bottom, 0px));
}

/* ---------- hero ---------- */
.surface6fb4d-hero {
  padding: 22px 16px 20px;
  background: var(--surface6fb4d-grad-hero);
  border-bottom: 1px solid var(--surface6fb4d-line-soft);
  position: relative;
  overflow: hidden;
}

.surface6fb4d-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(132, 112, 255, 0.22), transparent 68%);
  pointer-events: none;
}

.surface6fb4d-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--surface6fb4d-accent-2);
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(132, 112, 255, 0.14);
  border: 1px solid rgba(132, 112, 255, 0.3);
  margin: 0 0 12px;
}

.surface6fb4d-hero h1 {
  font-family: var(--surface6fb4d-font-round);
  font-size: clamp(22px, 6.2vw, 29px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: 0.1px;
  margin: 0 0 10px;
  color: #f6f8ff;
}

.surface6fb4d-hero-lead {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--surface6fb4d-text-dim);
  max-width: 40ch;
}

.surface6fb4d-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.surface6fb4d-hero-cta .surface6fb4d-btn { flex: 1 1 130px; }

/* ---------- carousel ---------- */
.surface6fb4d-carousel {
  position: relative;
  margin: 14px 12px 0;
  border-radius: var(--surface6fb4d-radius-l);
  overflow: hidden;
  border: 1px solid var(--surface6fb4d-line-soft);
  background: var(--surface6fb4d-panel);
}

.surface6fb4d-track {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 7;
  min-height: 140px;
}

.surface6fb4d-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  border: 0;
  background: var(--surface6fb4d-panel-2);
  cursor: pointer;
  opacity: 0;
  transform: translateX(6px);
  transition: opacity 0.45s ease, transform 0.45s ease;
  overflow: hidden;
}

.surface6fb4d-slide.is-active {
  opacity: 1;
  transform: translateX(0);
  z-index: 2;
}

.surface6fb4d-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.surface6fb4d-slide-cap {
  position: absolute;
  left: 10px;
  bottom: 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: calc(100% - 20px);
  padding: 7px 12px;
  border-radius: var(--surface6fb4d-radius-m);
  background: rgba(10, 13, 22, 0.72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: #f2f5fc;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.surface6fb4d-slide-cap svg { width: 14px; height: 14px; flex: 0 0 auto; }

.surface6fb4d-dots {
  position: absolute;
  right: 12px;
  bottom: 10px;
  z-index: 3;
  display: flex;
  gap: 6px;
}

.surface6fb4d-dot {
  width: 22px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
  cursor: pointer;
  transition: background-color 0.25s ease, width 0.25s ease;
}

.surface6fb4d-dot.is-active {
  width: 30px;
  background: var(--surface6fb4d-blue);
}

/* ---------- metric strip ---------- */
.surface6fb4d-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 14px 12px 4px;
}

.surface6fb4d-metric {
  background: var(--surface6fb4d-panel);
  border: 1px solid var(--surface6fb4d-line-soft);
  border-radius: var(--surface6fb4d-radius-m);
  padding: 10px 6px 9px;
  text-align: center;
}

.surface6fb4d-metric b {
  display: block;
  font-family: var(--surface6fb4d-font-round);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--surface6fb4d-accent);
}

.surface6fb4d-metric span {
  display: block;
  margin-top: 4px;
  font-size: 10px;
  line-height: 1.35;
  letter-spacing: 0.3px;
  color: var(--surface6fb4d-text-faint);
}

/* ---------- category shortcut chips ---------- */
.surface6fb4d-quick {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 12px 4px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.surface6fb4d-quick::-webkit-scrollbar { display: none; }

.surface6fb4d-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: var(--surface6fb4d-tap);
  padding: 9px 15px;
  border-radius: 10px;
  border: 1px solid var(--surface6fb4d-line);
  background: var(--surface6fb4d-panel);
  color: var(--surface6fb4d-text);
  text-decoration: none;
  font-size: 12.5px;
  font-weight: 700;
  white-space: nowrap;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease, transform 0.15s ease;
}

.surface6fb4d-chip svg { width: 15px; height: 15px; color: var(--surface6fb4d-accent); }

.surface6fb4d-chip:hover {
  border-color: var(--surface6fb4d-steel);
  color: #ffffff;
}

.surface6fb4d-chip:active { transform: scale(0.95); }

.surface6fb4d-chip-alt {
  background: var(--surface6fb4d-grad-chip);
  border-color: rgba(30, 144, 255, 0.45);
  color: #eaf3ff;
}

/* ---------- game category sections ---------- */
.surface6fb4d-cat {
  padding: 18px 12px 4px;
}

.surface6fb4d-cat-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}

.surface6fb4d-cat-head h2 {
  font-family: var(--surface6fb4d-font-round);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.25;
  margin: 0;
  color: #f3f6fd;
}

.surface6fb4d-count {
  flex: 0 0 auto;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.6px;
  color: var(--surface6fb4d-accent-2);
  background: rgba(132, 112, 255, 0.14);
  border: 1px solid rgba(132, 112, 255, 0.3);
  padding: 4px 9px;
  border-radius: 999px;
  white-space: nowrap;
}

.surface6fb4d-cat-intro {
  margin: 4px 0 12px;
  font-size: 12.8px;
  line-height: 1.62;
  color: var(--surface6fb4d-text-dim);
}

.surface6fb4d-cat-intro a {
  color: var(--surface6fb4d-accent);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(111, 180, 255, 0.45);
  text-underline-offset: 3px;
}

/* compact square catalog grid: 4 cols at 320px */
.surface6fb4d-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px 8px;
}

.surface6fb4d-tile {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: center;
  border-radius: var(--surface6fb4d-radius-m);
  -webkit-tap-highlight-color: transparent;
}

.surface6fb4d-tile-art {
  display: block;
  aspect-ratio: 1 / 1;
  border-radius: var(--surface6fb4d-radius-m);
  overflow: hidden;
  background: var(--surface6fb4d-panel-2);
  border: 1px solid var(--surface6fb4d-line-soft);
  transition: border-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
}

.surface6fb4d-tile-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.22s ease;
}

.surface6fb4d-tile:hover .surface6fb4d-tile-art {
  border-color: var(--surface6fb4d-steel);
  box-shadow: 0 6px 16px rgba(30, 144, 255, 0.2);
}

.surface6fb4d-tile:active .surface6fb4d-tile-art { transform: scale(0.93); }

.surface6fb4d-tile:active .surface6fb4d-tile-art img { transform: scale(1.06); }

.surface6fb4d-tile-name {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 6px;
  font-size: 11px;
  line-height: 1.35;
  font-weight: 600;
  color: var(--surface6fb4d-text-dim);
  transition: color 0.2s ease;
  overflow-wrap: anywhere;
}

.surface6fb4d-tile:hover .surface6fb4d-tile-name { color: #ffffff; }

/* ---------- partners strip ---------- */
.surface6fb4d-partners {
  padding: 18px 12px 6px;
}

.surface6fb4d-strip-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--surface6fb4d-text-faint);
}

.surface6fb4d-strip-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--surface6fb4d-line-soft);
}

.surface6fb4d-partner-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.surface6fb4d-partner-row::-webkit-scrollbar { display: none; }

.surface6fb4d-partner-chip {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 12px;
  border-radius: var(--surface6fb4d-radius-m);
  background: #f2f5fb;
}

.surface6fb4d-partner-chip img { max-height: 26px; width: auto; }

/* ---------- editorial panels ---------- */
.surface6fb4d-block {
  margin: 14px 12px 0;
  padding: 16px 14px;
  background: var(--surface6fb4d-panel);
  border: 1px solid var(--surface6fb4d-line-soft);
  border-radius: var(--surface6fb4d-radius-l);
}

.surface6fb4d-block > h2 {
  font-family: var(--surface6fb4d-font-round);
  font-size: 17.5px;
  font-weight: 800;
  line-height: 1.3;
  margin: 0 0 10px;
  color: #f3f6fd;
}

.surface6fb4d-block p {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.66;
  color: var(--surface6fb4d-text-dim);
}

.surface6fb4d-block p:last-child { margin-bottom: 0; }

.surface6fb4d-block a {
  color: var(--surface6fb4d-accent);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(111, 180, 255, 0.45);
  text-underline-offset: 3px;
}

/* feature rows: compact label + explanation */
.surface6fb4d-feat-list {
  display: grid;
  gap: 2px;
  margin: 0;
}

.surface6fb4d-feat {
  display: grid;
  grid-template-columns: 104px 1fr;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--surface6fb4d-line-soft);
}

.surface6fb4d-feat:last-child { border-bottom: 0; }

.surface6fb4d-feat dt {
  font-family: var(--surface6fb4d-font-round);
  font-size: 12.5px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--surface6fb4d-accent);
}

.surface6fb4d-feat dd {
  margin: 0;
  font-size: 12.6px;
  line-height: 1.6;
  color: var(--surface6fb4d-text-dim);
}

/* faq accordion */
.surface6fb4d-faq { display: grid; gap: 8px; }

.surface6fb4d-faq details {
  background: var(--surface6fb4d-panel-2);
  border: 1px solid var(--surface6fb4d-line-soft);
  border-radius: var(--surface6fb4d-radius-m);
  overflow: hidden;
}

.surface6fb4d-faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: var(--surface6fb4d-tap);
  padding: 11px 13px;
  cursor: pointer;
  list-style: none;
  font-family: var(--surface6fb4d-font-round);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
  color: #edf1f9;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.surface6fb4d-faq summary::-webkit-details-marker { display: none; }

.surface6fb4d-faq summary:hover { background: rgba(30, 144, 255, 0.08); }

.surface6fb4d-faq summary::after {
  content: "+";
  flex: 0 0 auto;
  font-size: 17px;
  font-weight: 400;
  color: var(--surface6fb4d-accent);
  transition: transform 0.2s ease;
}

.surface6fb4d-faq details[open] summary::after { transform: rotate(45deg); }

.surface6fb4d-faq-body {
  padding: 0 13px 12px;
  font-size: 12.6px;
  line-height: 1.62;
  color: var(--surface6fb4d-text-dim);
}

/* trick list */
.surface6fb4d-tricks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.surface6fb4d-tricks li {
  position: relative;
  padding: 0 0 0 20px;
  font-size: 12.8px;
  line-height: 1.6;
  color: var(--surface6fb4d-text-dim);
}

.surface6fb4d-tricks li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 3px;
  background: var(--surface6fb4d-grad-cta);
}

.surface6fb4d-tricks b { color: #eaf0fb; }

/* rtp callout */
.surface6fb4d-note {
  margin: 12px 0 0;
  padding: 11px 13px;
  border-left: 3px solid var(--surface6fb4d-violet);
  border-radius: var(--surface6fb4d-radius-s);
  background: rgba(132, 112, 255, 0.1);
  font-size: 12.6px;
  line-height: 1.6;
  color: #d9def0;
}

/* checklist */
.surface6fb4d-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.surface6fb4d-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  min-height: 40px;
  padding: 9px 2px;
  border-bottom: 1px dashed var(--surface6fb4d-line-soft);
  font-size: 12.8px;
  line-height: 1.55;
  color: var(--surface6fb4d-text-dim);
}

.surface6fb4d-checklist li:last-child { border-bottom: 0; }

.surface6fb4d-checklist li::before {
  content: "";
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 2px;
  border-radius: 5px;
  border: 2px solid var(--surface6fb4d-steel);
  background: rgba(70, 130, 180, 0.12);
}

/* inline promo text link */
.surface6fb4d-linkbtn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 40px;
  padding: 4px 2px;
  border: 0;
  background: none;
  cursor: pointer;
  color: var(--surface6fb4d-accent-2);
  font-size: inherit;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: rgba(166, 152, 255, 0.5);
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.surface6fb4d-linkbtn:hover { color: #c9c1ff; }

/* ---------- guide page structures ---------- */
.surface6fb4d-step-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  counter-reset: guide-step;
}

.surface6fb4d-step-rail li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 10px;
  align-items: start;
  padding: 11px 0;
  border-bottom: 1px dashed var(--surface6fb4d-line-soft);
}

.surface6fb4d-step-rail li:last-child { border-bottom: 0; }
.surface6fb4d-step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  min-height: 34px;
  border-radius: var(--surface6fb4d-radius-s);
  background: var(--surface6fb4d-grad-chip);
  border: 1px solid rgba(111, 180, 255, 0.4);
  color: var(--surface6fb4d-accent);
  font-family: var(--surface6fb4d-font-round);
  font-size: 11px;
  font-weight: 800;
}

.surface6fb4d-step-rail h3,
.surface6fb4d-trouble-grid h3 {
  margin: 0 0 4px;
  font-family: var(--surface6fb4d-font-round);
  font-size: 14px;
  line-height: 1.3;
  color: #f3f6fd;
}

.surface6fb4d-step-rail p,
.surface6fb4d-trouble-grid p { margin-bottom: 0; }

.surface6fb4d-trouble-grid {
  display: grid;
  gap: 8px;
}

.surface6fb4d-trouble-grid article {
  padding: 12px;
  border-left: 3px solid var(--surface6fb4d-steel);
  border-radius: var(--surface6fb4d-radius-s);
  background: var(--surface6fb4d-panel-2);
}

.surface6fb4d-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.surface6fb4d-cta-row .surface6fb4d-btn { flex: 1 1 140px; }

/* ---------- answer and comparison structures ---------- */
.surface6fb4d-choice-table,
.surface6fb4d-payment-flow,
.surface6fb4d-safety-grid { display: grid; gap: 6px; }

.surface6fb4d-choice-row {
  display: grid;
  grid-template-columns: minmax(92px, 0.7fr) 1.3fr;
  gap: 8px;
  padding: 10px 8px;
  border-bottom: 1px solid var(--surface6fb4d-line-soft);
  color: var(--surface6fb4d-text-dim);
  font-size: 12.2px;
  line-height: 1.5;
}
.surface6fb4d-choice-row:last-child { border-bottom: 0; }
.surface6fb4d-choice-head { color: var(--surface6fb4d-accent); font-weight: 800; }

.surface6fb4d-mistake-list,
.surface6fb4d-number-list { margin: 0; padding-left: 22px; color: var(--surface6fb4d-text-dim); }
.surface6fb4d-mistake-list { display: grid; gap: 9px; }
.surface6fb4d-mistake-list li,
.surface6fb4d-number-list li { padding-left: 3px; font-size: 12.8px; line-height: 1.62; }
.surface6fb4d-mistake-list b,
.surface6fb4d-number-list b { color: #edf1f9; }

.surface6fb4d-payment-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 12px; }
.surface6fb4d-payment-flow > div {
  padding: 11px 10px;
  background: var(--surface6fb4d-panel-2);
  border-top: 2px solid var(--surface6fb4d-blue);
  border-radius: var(--surface6fb4d-radius-s);
}
.surface6fb4d-payment-flow span { color: var(--surface6fb4d-accent); font-weight: 800; font-size: 11px; }
.surface6fb4d-payment-flow h3 { margin: 4px 0 3px; font-family: var(--surface6fb4d-font-round); font-size: 14px; color: #f3f6fd; }
.surface6fb4d-payment-flow p { margin: 0; font-size: 12px; line-height: 1.5; }

.surface6fb4d-safety-grid { grid-template-columns: 1fr; }
.surface6fb4d-safety-grid article { padding: 12px; background: rgba(30, 144, 255, 0.07); border: 1px solid var(--surface6fb4d-line-soft); border-radius: var(--surface6fb4d-radius-s); }
.surface6fb4d-safety-grid h3 { margin: 0 0 5px; font-family: var(--surface6fb4d-font-round); font-size: 14px; color: var(--surface6fb4d-accent); }
.surface6fb4d-safety-grid p { margin: 0; }

/* ---------- extended footer ---------- */
.surface6fb4d-xfooter {
  margin: 20px 12px 0;
  padding: 18px 14px 6px;
  background: #12161f;
  border: 1px solid var(--surface6fb4d-line-soft);
  border-radius: var(--surface6fb4d-radius-l);
}

.surface6fb4d-xf-brand {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--surface6fb4d-line-soft);
}

.surface6fb4d-xf-brand img {
  width: 34px;
  height: 34px;
  border-radius: var(--surface6fb4d-radius-s);
  object-fit: cover;
  flex: 0 0 auto;
}

.surface6fb4d-xf-brand p {
  margin: 0;
  font-size: 12.2px;
  line-height: 1.6;
  color: var(--surface6fb4d-text-dim);
}

.surface6fb4d-xf-title {
  display: block;
  margin: 14px 0 8px;
  font-family: var(--surface6fb4d-font-round);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--surface6fb4d-accent);
}

.surface6fb4d-xf-dir {
  display: grid;
  gap: 2px;
}

.surface6fb4d-xf-dir a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 42px;
  padding: 9px 4px;
  border-bottom: 1px dashed var(--surface6fb4d-line-soft);
  color: var(--surface6fb4d-text-dim);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  transition: color 0.2s ease;
}

.surface6fb4d-xf-dir a:hover { color: #ffffff; }

.surface6fb4d-xf-dir a span {
  font-size: 10.5px;
  font-weight: 500;
  color: var(--surface6fb4d-text-faint);
}

.surface6fb4d-xf-promos {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 4px;
}

.surface6fb4d-xf-promos .surface6fb4d-btn { flex: 1 1 44%; }

.surface6fb4d-xf-disclaimer {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--surface6fb4d-line-soft);
  font-size: 11.4px;
  line-height: 1.65;
  color: var(--surface6fb4d-text-faint);
}

/* ---------- common footer ---------- */
.surface6fb4d-footer {
  padding: 16px 16px 10px;
  text-align: center;
}

.surface6fb4d-footer p {
  margin: 0 0 4px;
  font-size: 11.4px;
  line-height: 1.6;
  color: var(--surface6fb4d-text-faint);
}

.surface6fb4d-footer b { color: var(--surface6fb4d-text-dim); }

/* ---------- fixed bottom nav rail ---------- */
.surface6fb4d-bottomnav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  z-index: 55;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  min-height: var(--surface6fb4d-bottomnav-h);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: rgba(16, 20, 29, 0.94);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--surface6fb4d-line-soft);
}

.surface6fb4d-bn-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: var(--surface6fb4d-bottomnav-h);
  padding: 8px 2px 9px;
  border: 0;
  background: none;
  color: var(--surface6fb4d-text-faint);
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease, transform 0.18s ease;
  -webkit-tap-highlight-color: transparent;
}

.surface6fb4d-bn-item svg { width: 23px; height: 23px; }

.surface6fb4d-bn-item span {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3px;
  line-height: 1;
}

.surface6fb4d-bn-item:active { transform: translateY(1px) scale(0.94); }

.surface6fb4d-bn-item:hover { color: var(--surface6fb4d-text-dim); }

.surface6fb4d-bn-item.is-active {
  color: var(--surface6fb4d-accent);
  transform: translateY(-2px);
}

.surface6fb4d-bn-item.is-active::after {
  content: "";
  position: absolute;
  bottom: 6px;
  width: 16px;
  height: 3px;
  border-radius: 999px;
  background: var(--surface6fb4d-grad-cta);
}

/* ---------- reveal-on-scroll (subtle) ---------- */
.surface6fb4d-reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.surface6fb4d-reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- breakpoints ---------- */
/* 375px and up: slightly roomier catalog rhythm */
@media (min-width: 375px) {
  .surface6fb4d-hero { padding: 26px 18px 24px; }
  .surface6fb4d-cat { padding-left: 14px; padding-right: 14px; }
  .surface6fb4d-metrics { padding-left: 14px; padding-right: 14px; }
  .surface6fb4d-quick { padding-left: 14px; padding-right: 14px; }
  .surface6fb4d-block,
  .surface6fb4d-xfooter,
  .surface6fb4d-carousel { margin-left: 14px; margin-right: 14px; }
  .surface6fb4d-partners { padding-left: 14px; padding-right: 14px; }
  .surface6fb4d-tile-name { font-size: 11.5px; }
}

/* 400px and up: fifth catalog column */
@media (min-width: 400px) {
  .surface6fb4d-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .surface6fb4d-feat { grid-template-columns: 118px 1fr; }
}

/* full 430px canvas: relax density a touch */
@media (min-width: 430px) {
  .surface6fb4d-hero h1 { font-size: 29px; }
  .surface6fb4d-cat-head h2 { font-size: 19px; }
  .surface6fb4d-block > h2 { font-size: 18.5px; }
  .surface6fb4d-grid { gap: 14px 10px; }
  .surface6fb4d-metric b { font-size: 20px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .surface6fb4d-reveal { opacity: 1; transform: none; }
  .surface6fb4d-slide { opacity: 1; transform: none; }
}

/* ---------- small utility ---------- */
.surface6fb4d-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}