:root {
  color-scheme: light;
  --cream: #fbf7f0;
  --paper: #fffdf8;
  --surface: #ffffff;
  --ink: #2e2a26;
  --muted: #6b6157;
  --mint: #4fb7ab;
  --mint-deep: #2f8e84;
  --mint-soft: #d9f0ec;
  --coral: #ffa585;
  --coral-deep: #b95f48;
  --coral-soft: #ffe6dc;
  --gold: #f4b860;
  --gold-deep: #8c621f;
  --gold-soft: #ffefd5;
  --facebook: #1877f2;
  --facebook-soft: #eaf3ff;
  --line: #e8e0d5;
  --shell: min(1180px, calc(100% - 48px));
  font-family: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--cream);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image: radial-gradient(rgba(47, 142, 132, .07) .8px, transparent .8px);
  background-size: 17px 17px;
  content: "";
  pointer-events: none;
}

img { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  left: 18px;
  top: 12px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: white;
  font-weight: 800;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.skip-link:focus { transform: translateY(0); }

:focus-visible {
  outline: 3px solid rgba(47, 142, 132, .55);
  outline-offset: 4px;
}

.section-shell { width: var(--shell); margin-inline: auto; }
.section-space { padding-block: clamp(88px, 11vw, 148px); }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  padding: 16px 0;
  transition: padding 220ms ease;
}

.site-header.is-scrolled { padding-top: 10px; }

.nav-shell {
  width: min(1060px, calc(100% - 32px));
  min-height: 68px;
  margin-inline: auto;
  padding: 8px 10px 8px 12px;
  display: flex;
  align-items: center;
  gap: 28px;
  border: 1px solid rgba(255, 255, 255, .8);
  border-radius: 24px;
  background: rgba(255, 253, 248, .82);
  box-shadow: 0 14px 38px rgba(46, 42, 38, .08);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  text-decoration: none;
}

.brand img { width: 48px; height: 48px; border-radius: 14px; }
.brand-copy { display: grid; gap: 2px; line-height: 1; }
.brand-copy strong { font-size: 17px; font-weight: 900; letter-spacing: .01em; }
.brand-copy small { color: var(--mint-deep); font-size: 12px; font-weight: 800; letter-spacing: .04em; }

.desktop-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 26px;
}

.desktop-nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
  transition: color 180ms ease;
}

.desktop-nav a:hover { color: var(--mint-deep); }

.social-nav {
  min-width: max-content;
  padding: 9px 12px 9px 9px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border-radius: 999px;
  background: var(--facebook);
  color: white;
  font-size: 13px;
  font-weight: 850;
  text-decoration: none;
  transition: background 180ms ease, transform 180ms ease;
}

.social-nav:hover { background: #0d65d9; transform: translateY(-1px); }
.social-nav img { width: 23px; height: 23px; }

.nav-cta {
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: white;
  font-size: 14px;
  font-weight: 850;
  text-decoration: none;
  transition: background 180ms ease, transform 180ms ease;
}

.nav-cta:hover { background: var(--mint-deep); transform: translateY(-1px); }

.hero {
  position: relative;
  min-height: 860px;
  padding: 170px 0 70px;
  background:
    radial-gradient(circle at 78% 22%, rgba(79, 183, 171, .24), transparent 28%),
    radial-gradient(circle at 12% 72%, rgba(244, 184, 96, .22), transparent 24%),
    linear-gradient(155deg, #fffdf8 5%, #fbf7f0 58%, #f0faf8 100%);
}

.hero::after {
  position: absolute;
  inset: auto 0 0;
  height: 86px;
  background: var(--cream);
  clip-path: ellipse(58% 38% at 50% 100%);
  content: "";
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(440px, .95fr);
  align-items: center;
  gap: clamp(42px, 7vw, 90px);
}

.eyebrow {
  margin: 0 0 20px;
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--mint-deep);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .12em;
}

.eyebrow > span {
  width: 26px;
  height: 8px;
  border-radius: 999px;
  background: var(--mint);
  box-shadow: 9px 0 0 var(--gold);
}

.eyebrow.coral, .coral-text { color: var(--coral-deep); }
.eyebrow.coral > span { background: var(--coral); }
.eyebrow.gold, .gold-text { color: var(--gold-deep); }
.eyebrow.gold > span { background: var(--gold); box-shadow: 9px 0 0 var(--coral); }

.hero h1,
.section-heading h2,
.feature-copy h3,
.arena h2,
.arena h3,
.parents h2,
.download h2 {
  margin: 0;
  font-weight: 900;
  letter-spacing: -.045em;
}

.hero h1 {
  max-width: 700px;
  font-size: clamp(48px, 4.8vw, 70px);
  line-height: 1.13;
}

.hero h1 em { color: var(--mint-deep); font-style: normal; }

.hero-lead {
  max-width: 620px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.7vw, 20px);
  font-weight: 560;
  line-height: 1.8;
}

.store-actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.store-badge {
  display: inline-flex;
  border-radius: 11px;
  line-height: 0;
  transition: opacity 180ms ease, transform 180ms ease;
}

.store-badge:hover { opacity: .86; transform: translateY(-2px); }
.store-badge img { width: auto; height: 50px; }
.platform-note { margin: 12px 0 0; color: #81776c; font-size: 13px; font-weight: 650; }

.hero-visual { position: relative; min-height: 520px; display: grid; place-items: center; }

.hero-visual::before {
  position: absolute;
  width: min(470px, 100%);
  aspect-ratio: 1;
  border-radius: 46% 54% 63% 37% / 42% 34% 66% 58%;
  background: linear-gradient(145deg, rgba(217, 240, 236, .95), rgba(255, 239, 213, .85));
  content: "";
  animation: blob 12s ease-in-out infinite alternate;
}

.device-showcase {
  position: relative;
  z-index: 2;
  width: min(650px, 100%);
  aspect-ratio: 1.35;
  isolation: isolate;
}

.device-showcase-hero { width: min(620px, 100%); }

.device-frame {
  position: absolute;
  overflow: hidden;
  background: #171513;
  box-shadow: 0 28px 60px rgba(46, 42, 38, .18), 0 7px 18px rgba(46, 42, 38, .10);
}

.device-frame img {
  width: 100%;
  height: auto;
}

.device-tablet {
  left: 0;
  top: 4%;
  width: 88%;
  padding: 5px;
  border: 7px solid #27231f;
  border-radius: 32px;
}

.device-tablet img { border-radius: 20px; }

.device-phone {
  right: 0;
  bottom: 0;
  width: 27%;
  padding: 3px;
  border: 5px solid #27231f;
  border-radius: 28px;
}

.device-phone img { border-radius: 19px; }
.device-showcase.phone-left .device-tablet { left: auto; right: 0; }
.device-showcase.phone-left .device-phone { left: 0; right: auto; }

.device-note {
  position: absolute;
  z-index: 4;
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .94);
  color: var(--muted);
  box-shadow: 0 10px 24px rgba(46, 42, 38, .10);
  font-size: 11px;
  font-weight: 850;
}

.device-note-tablet { left: 5%; bottom: 7%; }
.device-note-phone { right: 2%; top: 13%; }

.floating-tag {
  position: absolute;
  z-index: 3;
  padding: 12px 17px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .94);
  color: var(--ink);
  box-shadow: 0 14px 30px rgba(46, 42, 38, .11);
  font-size: 14px;
  font-weight: 850;
  white-space: nowrap;
  animation: float 4.8s ease-in-out infinite;
}

.floating-tag span { margin-right: 5px; color: var(--mint-deep); }
.tag-read { left: -8px; top: 23%; }
.tag-grow { right: -28px; bottom: 16%; animation-delay: -2s; }
.tag-grow span { color: var(--gold-deep); }

.hero-orbit {
  position: absolute;
  z-index: 1;
  display: grid;
  place-items: center;
  border-radius: 22px;
  background: rgba(255, 255, 255, .75);
  color: var(--mint-deep);
  box-shadow: 0 18px 42px rgba(46, 42, 38, .08);
  font-weight: 900;
  transform: rotate(var(--turn));
}

.hero-orbit-one { --turn: -10deg; left: 5vw; top: 19%; width: 58px; height: 58px; }
.hero-orbit-two { --turn: 12deg; right: 4vw; top: 18%; width: 50px; height: 50px; color: var(--coral-deep); }
.hero-orbit-three { --turn: -5deg; right: 8vw; bottom: 15%; width: 64px; height: 64px; color: var(--gold-deep); }

.promise-strip {
  position: relative;
  z-index: 3;
  margin-top: 74px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.promise-strip i { width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }

.section-heading { max-width: 760px; margin-bottom: clamp(50px, 7vw, 82px); }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading.centered .eyebrow { justify-content: center; }
.section-heading h2, .parents h2, .download h2 { font-size: clamp(38px, 4.5vw, 62px); line-height: 1.18; }
.section-heading > p:last-child { margin: 22px 0 0; color: var(--muted); font-size: 18px; }

.brand-story { padding-bottom: clamp(54px, 7vw, 88px); }
.brand-story .section-heading { margin-bottom: 24px; }
.real-screen-note { max-width: 680px; margin: 0 auto; color: #81776c; text-align: center; font-size: 14px; font-weight: 700; }

.feature-stories { background: var(--paper); }
.feature-story {
  min-height: 620px;
  margin-bottom: clamp(78px, 11vw, 150px);
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(360px, .78fr);
  align-items: center;
  gap: clamp(50px, 9vw, 130px);
}

.feature-story:last-child { margin-bottom: 0; }
.feature-story:nth-of-type(odd) .feature-copy { order: 2; }
.feature-story:nth-of-type(odd) .feature-image-wrap { order: 1; }

.feature-index {
  margin: 0 0 22px;
  color: var(--mint-deep);
  font-size: 15px;
  font-weight: 900;
  letter-spacing: .1em;
}

.feature-index span {
  margin-left: 10px;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--mint-soft);
  font-size: 12px;
  letter-spacing: .04em;
}

.coral-text span { background: var(--coral-soft); }
.gold-text span { background: var(--gold-soft); }

.feature-copy h3 { font-size: clamp(36px, 4.2vw, 58px); line-height: 1.18; }
.feature-copy > p:not(.feature-index) { margin: 26px 0 0; color: var(--muted); font-size: 18px; line-height: 1.8; }

.soft-list { margin: 28px 0 0; padding: 0; display: grid; gap: 13px; list-style: none; }
.soft-list li { position: relative; padding-left: 27px; color: #554d45; font-weight: 700; }
.soft-list li::before { position: absolute; left: 0; top: .72em; width: 10px; height: 10px; border-radius: 4px 7px 5px 8px; background: var(--mint); content: ""; transform: rotate(12deg); }
.soft-list.coral-dots li::before { background: var(--coral); }
.soft-list.gold-dots li::before { background: var(--gold); }

.feature-image-wrap {
  position: relative;
  min-height: 520px;
  padding: clamp(18px, 3vw, 34px);
  display: grid;
  place-items: center;
  border-radius: 48% 52% 42% 58% / 44% 45% 55% 56%;
}

.mint-wash { background: linear-gradient(155deg, #e8f7f4, #fff3dc); }
.coral-wash { background: linear-gradient(155deg, #fff0ea, #fff7dd); }
.gold-wash { background: linear-gradient(155deg, #fff5dc, #e8f7f4); }

.image-caption {
  position: absolute;
  z-index: 3;
  right: -16px;
  bottom: 13%;
  max-width: 210px;
  padding: 13px 17px;
  border-radius: 18px 18px 5px 18px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 14px 36px rgba(46, 42, 38, .10);
  color: var(--ink);
  font-size: 13px;
  font-weight: 850;
  line-height: 1.5;
}

.feature-story:nth-of-type(odd) .image-caption { right: auto; left: -16px; border-radius: 18px 18px 18px 5px; }

.guide {
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 20%, rgba(255, 165, 133, .16), transparent 22%),
    radial-gradient(circle at 90% 72%, rgba(79, 183, 171, .18), transparent 24%),
    linear-gradient(180deg, #f5fbf9, var(--cream));
}

.guide-tabs {
  margin: 0 auto 24px;
  padding: 7px;
  display: flex;
  justify-content: center;
  gap: 4px;
  width: max-content;
  max-width: 100%;
  border-radius: 999px;
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 14px 34px rgba(46, 42, 38, .07);
}

.guide-tab {
  padding: 11px 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.guide-tab span { color: #9c9288; font-size: 10px; font-weight: 900; letter-spacing: .08em; }
.guide-tab:hover { background: var(--surface); color: var(--ink); }
.guide-tab.is-active { background: var(--ink); color: white; box-shadow: 0 9px 20px rgba(46, 42, 38, .15); }
.guide-tab.is-active span { color: var(--gold); }

.guide-stage {
  min-height: 630px;
  padding: clamp(30px, 5vw, 68px);
  border-radius: clamp(34px, 5vw, 60px);
  background: rgba(255, 253, 248, .82);
  box-shadow: 0 30px 80px rgba(46, 42, 38, .09);
}

.js .guide-panel:not(.is-active) { display: none; }

.guide-panel {
  display: grid;
  grid-template-columns: minmax(420px, .95fr) minmax(0, 1.05fr);
  align-items: center;
  gap: clamp(46px, 8vw, 100px);
}

.guide-visual {
  position: relative;
  min-height: 470px;
  padding: 28px;
  display: grid;
  place-items: center;
  border-radius: 48% 52% 45% 55% / 42% 48% 52% 58%;
  background: linear-gradient(150deg, var(--mint-soft), var(--gold-soft));
}

.guide-library-visual { background: linear-gradient(150deg, var(--coral-soft), #fff8e7); }
.guide-practice-visual { background: linear-gradient(150deg, var(--gold-soft), var(--mint-soft)); }
.guide-arena-visual { background: linear-gradient(150deg, #d7f0ec, #e8f5ff); }

.guide-signal {
  position: absolute;
  left: -12px;
  top: 13%;
  padding: 10px 14px;
  border-radius: 999px;
  background: white;
  color: var(--mint-deep);
  box-shadow: 0 12px 28px rgba(46, 42, 38, .10);
  font-size: 12px;
  font-weight: 900;
}

.coral-signal { color: var(--coral-deep); }
.gold-signal { color: var(--gold-deep); }
.arena-signal { color: #3a7294; }
.guide-kicker { margin: 0 0 16px; color: var(--mint-deep); font-size: 13px; font-weight: 900; letter-spacing: .1em; }
.arena-text { color: #3a7294; }
.guide-copy h3 { margin: 0; font-size: clamp(35px, 4vw, 54px); line-height: 1.2; letter-spacing: -.045em; }

.guide-instructions {
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  list-style: none;
}

.guide-instructions li {
  padding: 17px 0;
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  border-bottom: 1px solid var(--line);
}

.guide-instructions li:last-child { border-bottom: 0; }
.guide-instructions b { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 12px; background: var(--mint-soft); color: var(--mint-deep); font-size: 13px; }
.guide-instructions span { color: var(--muted); font-size: 14px; line-height: 1.65; }
.guide-instructions strong { margin-bottom: 2px; display: block; color: var(--ink); font-size: 16px; }
.coral-steps b { background: var(--coral-soft); color: var(--coral-deep); }
.gold-steps b { background: var(--gold-soft); color: var(--gold-deep); }
.arena-guide-steps b { background: #e7f4fb; color: #3a7294; }

.arena {
  position: relative;
  overflow: hidden;
  background: #2f8e84;
  color: white;
}

.arena::before {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 8% 15%, rgba(255, 255, 255, .10), transparent 24%),
    radial-gradient(circle at 90% 76%, rgba(244, 184, 96, .22), transparent 25%);
  content: "";
}

.arena-dots {
  position: absolute;
  inset: 0;
  opacity: .16;
  background-image: radial-gradient(white 1px, transparent 1px);
  background-size: 22px 22px;
}

.arena-shell { position: relative; z-index: 2; }
.arena-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(430px, .9fr); align-items: center; gap: clamp(40px, 7vw, 86px); }
.arena-intro > div:first-child { max-width: 650px; }
.arena-eyebrow { color: #fff2d8; }
.arena-eyebrow > span { background: var(--gold); box-shadow: 9px 0 0 var(--coral); }
.arena h2 { font-size: clamp(42px, 5vw, 68px); line-height: 1.15; }
.arena-intro p:last-child, .arena-result p { margin: 26px 0 0; color: rgba(255, 255, 255, .78); font-size: 18px; line-height: 1.8; }
.arena-art { display: grid; place-items: center; }

.arena-steps {
  margin: 76px 0 100px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  list-style: none;
}

.arena-steps li {
  min-height: 180px;
  padding: 24px 22px;
  border-radius: 28px;
  background: rgba(255, 255, 255, .10);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.arena-steps b {
  width: 34px;
  height: 34px;
  margin-bottom: 20px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--gold);
  color: #51360f;
  font-size: 14px;
}

.arena-steps span { display: block; color: rgba(255, 255, 255, .75); font-size: 14px; line-height: 1.6; }
.arena-steps strong { margin-bottom: 5px; display: block; color: white; font-size: 17px; }

.arena-result {
  max-width: 760px;
  margin-inline: auto;
  padding-top: 80px;
  border-top: 1px solid rgba(255, 255, 255, .2);
  text-align: center;
}

.mini-label { margin: 0 0 16px !important; color: #fff2d8 !important; font-size: 13px !important; font-weight: 900; letter-spacing: .12em; }
.arena h3 { font-size: clamp(34px, 4vw, 52px); line-height: 1.2; }
.text-link { margin-top: 28px; display: inline-flex; gap: 9px; color: white; font-weight: 850; text-decoration-thickness: 1px; text-underline-offset: 5px; }
.text-link span { transition: transform 180ms ease; }
.text-link:hover span { transform: translateX(4px); }

.parents { background: linear-gradient(180deg, var(--cream), #fffaf1); }
.parents-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(400px, .72fr); align-items: center; gap: clamp(60px, 9vw, 130px); }
.parents-copy > p:last-child { margin: 26px 0 0; color: var(--muted); font-size: 18px; line-height: 1.8; }

.parent-notes { display: grid; gap: 8px; }
.parent-notes article { display: grid; grid-template-columns: 60px 1fr; align-items: center; gap: 18px; padding: 20px 4px; border-bottom: 1px solid var(--line); }
.parent-notes article:last-child { border-bottom: 0; }
.note-mark { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 20px; font-size: 16px; font-weight: 900; }
.mint-mark { background: var(--mint-soft); color: var(--mint-deep); }
.coral-mark { background: var(--coral-soft); color: var(--coral-deep); }
.gold-mark { background: var(--gold-soft); color: var(--gold-deep); }
.parent-notes h3 { margin: 0; font-size: 19px; }
.parent-notes p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

.download { padding-top: 30px; background: #fffaf1; }
.download-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(70px, 9vw, 110px) 32px;
  border-radius: clamp(34px, 5vw, 64px);
  background: linear-gradient(150deg, var(--mint-soft), #f4f9e8 52%, var(--gold-soft));
  text-align: center;
}

.download-panel::before, .download-panel::after { position: absolute; border-radius: 50%; content: ""; }
.download-panel::before { width: 240px; height: 240px; left: -90px; bottom: -100px; background: rgba(255, 165, 133, .35); }
.download-panel::after { width: 180px; height: 180px; right: -40px; top: -70px; background: rgba(79, 183, 171, .25); }
.download-icon { position: relative; z-index: 2; width: 92px; height: 92px; margin: 0 auto 26px; border-radius: 26px; box-shadow: 0 18px 38px rgba(46, 42, 38, .13); }
.download .eyebrow { justify-content: center; }
.download h2 { position: relative; z-index: 2; }
.download-panel > p:not(.eyebrow) { position: relative; z-index: 2; margin: 22px 0 0; color: var(--muted); font-size: 18px; }
.centered-actions { position: relative; z-index: 2; justify-content: center; }
.download-syllables span { position: absolute; z-index: 1; color: rgba(47, 142, 132, .16); font-size: clamp(50px, 7vw, 94px); font-weight: 900; transform: rotate(var(--angle)); }
.download-syllables span:nth-child(1) { --angle: -12deg; left: 8%; top: 17%; }
.download-syllables span:nth-child(2) { --angle: 9deg; right: 10%; bottom: 10%; color: rgba(185, 95, 72, .14); }
.download-syllables span:nth-child(3) { --angle: -4deg; left: 18%; bottom: 8%; color: rgba(140, 98, 31, .12); }

.community { padding: 0 0 clamp(74px, 9vw, 118px); background: #fffaf1; }

.community-band {
  padding: clamp(32px, 5vw, 52px);
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(24px, 4vw, 46px);
  border-radius: clamp(30px, 4vw, 46px);
  background: linear-gradient(135deg, var(--facebook-soft), #f6f9ff 58%, #fff6ef);
}

.community-icon { width: 70px; height: 70px; display: grid; place-items: center; border-radius: 24px; background: var(--facebook); box-shadow: 0 15px 30px rgba(24, 119, 242, .20); }
.community-icon img { width: 34px; height: 34px; }
.community-copy p { margin: 0 0 8px; color: var(--facebook); font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.community-copy h2 { margin: 0; font-size: clamp(24px, 3vw, 38px); line-height: 1.28; letter-spacing: -.035em; }
.facebook-cta { padding: 13px 18px; display: inline-flex; align-items: center; gap: 9px; border-radius: 999px; background: var(--facebook); color: white; font-size: 14px; font-weight: 850; text-decoration: none; white-space: nowrap; transition: background 180ms ease; }
.facebook-cta:hover { background: #0d65d9; }
.facebook-cta span { transition: transform 180ms ease; }
.facebook-cta:hover span { transform: translateX(3px); }

.site-footer { padding: 44px 0 36px; background: #fffaf1; }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 28px; color: var(--muted); font-size: 13px; }
.footer-brand img { width: 40px; height: 40px; border-radius: 12px; }
.footer-brand .brand-copy strong { color: var(--ink); font-size: 14px; }
.footer-brand .brand-copy small { font-size: 10px; }
.footer-inner > p { margin: 0; }
.footer-inner nav { display: flex; gap: 20px; }
.footer-inner nav a { text-decoration: none; }
.footer-inner nav a:hover { color: var(--mint-deep); }
.footer-inner > small { white-space: nowrap; }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 700ms ease, transform 700ms cubic-bezier(.2, .75, .25, 1); }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes float { 0%, 100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-10px) rotate(1deg); } }
@keyframes blob { 0% { border-radius: 46% 54% 63% 37% / 42% 34% 66% 58%; transform: rotate(0); } 100% { border-radius: 60% 40% 42% 58% / 55% 63% 37% 45%; transform: rotate(7deg); } }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-copy { max-width: 760px; margin-inline: auto; }
  .eyebrow, .store-actions { justify-content: center; }
  .hero-lead { margin-inline: auto; }
  .hero-visual { min-height: 540px; }
  .tag-read { left: 10%; }
  .tag-grow { right: 8%; }
  .feature-story { grid-template-columns: 1fr 1fr; gap: 52px; }
  .feature-image-wrap { min-height: 470px; }
  .guide-panel { grid-template-columns: minmax(360px, .85fr) minmax(0, 1fr); gap: 52px; }
  .guide-tabs { width: 100%; justify-content: flex-start; overflow-x: auto; scrollbar-width: none; }
  .guide-tabs::-webkit-scrollbar { display: none; }
  .arena-steps { grid-template-columns: repeat(2, 1fr); }
  .arena-steps li { min-height: 154px; }
  .parents-grid { gap: 60px; }
  .footer-inner { grid-template-columns: auto 1fr auto; }
  .footer-inner > p { display: none; }
}

@media (max-width: 760px) {
  :root { --shell: min(100% - 32px, 620px); }
  .section-space { padding-block: 86px; }
  .site-header { padding-top: 10px; }
  .nav-shell { min-height: 62px; border-radius: 21px; }
  .brand img { width: 42px; height: 42px; border-radius: 12px; }
  .brand-copy strong { font-size: 15px; }
  .brand-copy small { font-size: 10px; }
  .desktop-nav { display: none; }
  .social-nav { margin-left: auto; padding-right: 10px; }
  .nav-cta { margin-left: auto; padding: 10px 15px; font-size: 13px; }
  .hero { min-height: auto; padding-top: 132px; }
  .hero h1 { font-size: clamp(42px, 12vw, 60px); }
  .hero-lead { font-size: 17px; }
  .hero-visual { min-height: 440px; }
  .device-showcase-hero { width: min(620px, 94vw); }
  .floating-tag { font-size: 12px; }
  .tag-read { left: 0; }
  .tag-grow { right: 0; }
  .hero-orbit { display: none; }
  .promise-strip { margin-top: 42px; gap: 9px 15px; }
  .section-heading { margin-bottom: 50px; }
  .section-heading h2, .parents h2, .download h2 { font-size: clamp(36px, 10vw, 48px); }
  .feature-story, .guide-panel, .arena-intro, .arena-result, .parents-grid { grid-template-columns: 1fr; }
  .feature-story { min-height: auto; margin-bottom: 110px; gap: 52px; }
  .feature-story:nth-of-type(odd) .feature-copy, .feature-story .feature-copy { order: 1; }
  .feature-story:nth-of-type(odd) .feature-image-wrap, .feature-story .feature-image-wrap { order: 2; }
  .feature-copy h3 { font-size: clamp(34px, 10vw, 46px); }
  .feature-copy > p:not(.feature-index) { font-size: 16px; }
  .feature-image-wrap { min-height: 430px; }
  .image-caption, .feature-story:nth-of-type(odd) .image-caption { left: auto; right: -4px; bottom: 9%; }
  .guide-stage { min-height: 0; padding: 38px 28px; }
  .guide-panel { gap: 48px; }
  .guide-visual { min-height: 410px; }
  .guide-copy { text-align: left; }
  .community-band { grid-template-columns: 64px 1fr; }
  .community-icon { width: 62px; height: 62px; border-radius: 21px; }
  .facebook-cta { grid-column: 1 / -1; justify-self: start; margin-left: 88px; }
  .arena-intro { text-align: center; }
  .arena-intro .eyebrow { justify-content: center; }
  .arena-intro > div:first-child { margin-inline: auto; }
  .arena h2 { font-size: clamp(40px, 11vw, 54px); }
  .arena-art-flow { order: -1; }
  .arena-art-flow { width: min(620px, 94vw); margin-inline: auto; }
  .arena-steps { margin-block: 65px 76px; }
  .arena-result { padding-top: 65px; }
  .parents-grid { gap: 42px; }
  .download-panel { width: min(100% - 20px, 620px); }
  .footer-inner { grid-template-columns: 1fr; justify-items: center; text-align: center; gap: 18px; }
}

@media (max-width: 520px) {
  .nav-shell { gap: 8px; }
  .nav-cta { margin-left: 0; padding: 9px 12px; font-size: 12px; }
  .hero { padding-bottom: 36px; }
  .social-nav span { display: none; }
  .social-nav { padding: 9px; }
  .hero h1 { font-size: clamp(34px, 10vw, 46px); letter-spacing: -.06em; overflow-wrap: anywhere; }
  .hero-lead { overflow-wrap: anywhere; }
  .store-actions { flex-direction: column; align-items: center; }
  .store-badge img { height: 48px; }
  .hero-visual { min-height: 350px; }
  .device-tablet { padding: 3px; border-width: 4px; border-radius: 20px; }
  .device-tablet img { border-radius: 13px; }
  .device-phone { padding: 2px; border-width: 3px; border-radius: 18px; }
  .device-phone img { border-radius: 12px; }
  .device-note { padding: 5px 8px; font-size: 9px; }
  .tag-read { top: 16%; }
  .tag-grow { right: 0; bottom: 12%; }
  .promise-strip i:nth-of-type(2) { display: none; }
  .promise-strip span { width: calc(50% - 14px); text-align: center; }
  .promise-strip i { display: none; }
  .feature-image-wrap { min-height: 330px; border-radius: 45px; }
  .image-caption, .feature-story:nth-of-type(odd) .image-caption { display: none; }
  .guide-stage { padding: 30px 20px; border-radius: 34px; }
  .guide-tabs { margin-inline: 0; }
  .guide-tab { padding: 10px 13px; font-size: 13px; }
  .guide-visual { min-height: 310px; padding: 18px; border-radius: 42px; }
  .guide-signal { left: -5px; }
  .guide-copy h3 { font-size: clamp(32px, 9.5vw, 42px); }
  .community-band { grid-template-columns: 52px 1fr; padding: 28px 22px; }
  .community-icon { width: 52px; height: 52px; border-radius: 18px; }
  .community-icon img { width: 27px; height: 27px; }
  .community-copy h2 { font-size: 24px; }
  .facebook-cta { margin-left: 0; }
  .arena-steps { grid-template-columns: 1fr; }
  .arena-steps li { min-height: 0; display: grid; grid-template-columns: 40px 1fr; align-items: start; gap: 14px; }
  .arena-steps b { margin: 0; }
  .download-panel { padding-inline: 22px; }
  .download-syllables span:nth-child(1), .download-syllables span:nth-child(3) { display: none; }
  .footer-inner nav { flex-wrap: wrap; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal, .js .reveal { opacity: 1; transform: none; }
}