:root {
  color-scheme: light;
  --ink: #07080b;
  --muted: #505967;
  --page: #fbfffe;
  --surface: #ffffff;
  --line: #d5e4e2;
  --mint: #70f2c4;
  --mint-soft: #e8fff6;
  --teal: #096f61;
  --cyan: #5bc9ff;
  --purple: #9b6cff;
  --violet: #c07cff;
  --pink: #ff78c7;
  --coral: #ff6f61;
  --amber: #ffb72b;
  --shadow: 0 28px 80px rgba(7, 8, 11, 0.12);
  --pop-shadow: 10px 10px 0 rgba(112, 242, 196, 0.22), -10px -10px 0 rgba(155, 108, 255, 0.16);
  --glass-line: rgba(116, 150, 145, 0.2);
  --glass-surface: rgba(255, 255, 255, 0.62);
  --glass-shadow: 0 28px 80px rgba(45, 67, 77, 0.1), 0 0 80px rgba(112, 242, 196, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(7, 8, 11, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(7, 8, 11, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(112, 242, 196, 0.22), transparent 460px),
    var(--page);
  background-size: 44px 44px, 44px 44px, auto, auto;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 18px;
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  padding: 12px 0;
}

.brand,
.nav-links,
.hero-actions a,
.store-button,
.site-footer,
.site-footer nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  min-height: 52px;
  padding: 6px 12px 6px 8px;
  border: 1px solid var(--glass-line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(18px);
  font-size: 17px;
  font-weight: 900;
}

.brand-mark {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.nav-links {
  justify-self: end;
  gap: 4px;
  min-height: 52px;
  padding: 5px;
  border: 1px solid var(--glass-line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(18px);
  color: #3f4a55;
  font-size: 14px;
  font-weight: 820;
}

.nav-links a {
  display: flex;
  align-items: center;
  min-height: 40px;
  padding: 0 15px;
  border-radius: 999px;
  transition:
    background 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.nav-links a:hover {
  background: linear-gradient(135deg, rgba(112, 242, 196, 0.42), rgba(192, 124, 255, 0.22));
  color: var(--teal);
  transform: translateY(-1px);
}

.nav-links .nav-download {
  background: rgba(7, 8, 11, 0.96);
  color: #fff;
}

.nav-links .nav-download:hover {
  background: var(--ink);
  color: #fff;
}

main {
  overflow: hidden;
}

.hero,
.app-section,
.section,
.real-world {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  max-width: none;
  min-height: calc(100vh - 76px);
  margin: 0;
  padding: 92px 20px 108px;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid rgba(116, 150, 145, 0.16);
  background:
    linear-gradient(110deg, rgba(112, 242, 196, 0.82), rgba(255, 255, 255, 0.2) 42%, rgba(155, 108, 255, 0.62)),
    linear-gradient(135deg, #eafff7 0%, #f2eaff 48%, #d7fff3 100%);
}

.hero-background-video,
.hero-scrim {
  position: absolute;
  inset: 0;
}

.hero-background-video {
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.76;
  filter: saturate(1.22) contrast(1.05);
}

.hero-scrim {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(112, 242, 196, 0.42), rgba(255, 255, 255, 0.22) 40%, rgba(155, 108, 255, 0.4)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(248, 242, 255, 0.34) 42%, rgba(7, 8, 11, 0.34));
  backdrop-filter: saturate(1.16);
}

.hero-copy {
  width: min(980px, 100%);
  text-align: center;
  text-shadow: 0 1px 24px rgba(255, 255, 255, 0.42);
}

.hero-copy .eyebrow {
  color: #064f47;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin: 0 auto 24px;
  font-size: clamp(56px, 8vw, 112px);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(36px, 5vw, 66px);
  line-height: 1;
  letter-spacing: 0;
}

.hero-subtitle,
.section-heading p,
.app-copy p,
.real-world p {
  color: var(--muted);
  line-height: 1.7;
}

.hero-subtitle {
  max-width: 680px;
  margin: 0 auto;
  font-size: 21px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 34px;
}

.hero-actions a {
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 860;
}

.primary-action {
  background: var(--ink);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--glass-shadow);
}

.secondary-action {
  border: 1px solid var(--glass-line);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--glass-shadow);
}

.hero-video {
  display: grid;
  gap: 12px;
}

.video-frame {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(103, 217, 194, 0.44), rgba(77, 183, 216, 0.18)),
    #fff;
  box-shadow: var(--shadow);
  padding: 26px;
}

.person-scene {
  position: relative;
  width: 100%;
  height: 100%;
}

.hand {
  position: absolute;
  right: 22%;
  bottom: 0;
  width: 42%;
  height: 34%;
  border-radius: 70px 70px 8px 8px;
  background: #f2c0a5;
}

.phone-preview {
  position: absolute;
  right: 16%;
  bottom: 18%;
  width: min(260px, 58%);
  min-height: 390px;
  border: 1px solid rgba(9, 11, 15, 0.58);
  border-radius: 34px;
  background: linear-gradient(180deg, #ffffff, #edf9f6);
  padding: 18px;
  transform: rotate(-4deg);
}

.phone-top {
  width: 62px;
  height: 16px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: var(--ink);
}

.chat-bubble,
.meaning-card,
.environment-card,
.capture-phone,
.ui-mockup,
.mock-card,
.content-grid article,
.audience-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
}

.chat-bubble {
  margin-bottom: 12px;
  padding: 12px;
  color: #2e3741;
  font-weight: 720;
  line-height: 1.45;
}

.chat-bubble.user {
  margin-left: 26px;
  border-color: rgba(217, 87, 76, 0.32);
  background: #fff1ef;
}

.meaning-card {
  padding: 14px;
  background: var(--mint-soft);
}

.meaning-card span,
.small-label,
.content-grid span {
  display: block;
  margin-bottom: 8px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.meaning-card strong {
  font-size: 22px;
}

.conversation-lines {
  position: absolute;
  top: 14%;
  left: 0;
  display: grid;
  gap: 12px;
  width: 42%;
}

.conversation-lines span {
  display: block;
  height: 18px;
  border-radius: 999px;
  background: rgba(14, 106, 96, 0.2);
}

.conversation-lines span:nth-child(2) {
  width: 74%;
  background: rgba(77, 183, 216, 0.25);
}

.conversation-lines span:nth-child(3) {
  width: 58%;
  background: rgba(216, 155, 45, 0.25);
}

.media-note {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 720;
}

.app-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.8fr);
  gap: 42px;
  align-items: center;
  padding: 86px 0;
  border-top: 1px solid rgba(116, 150, 145, 0.16);
}

.app-section .ui-mockup {
  order: -1;
}

.app-copy p {
  max-width: 660px;
  margin: 22px 0 0;
  font-size: 18px;
}

.store-button {
  width: fit-content;
  gap: 12px;
  margin-top: 28px;
  padding: 12px 18px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: var(--ink);
  color: #fff;
  box-shadow: var(--glass-shadow);
}

.store-button span,
.store-button strong {
  display: block;
}

.store-button span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
}

.store-button strong {
  font-size: 22px;
}

.ui-mockup {
  position: relative;
  display: grid;
  place-items: center;
  overflow: visible;
  min-height: 650px;
  padding: 28px 16px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  box-shadow: none;
}

.ui-mockup::before,
.ui-mockup::after {
  position: absolute;
  color: rgba(14, 106, 96, 0.26);
  font-size: 32px;
  font-weight: 900;
}

.ui-mockup::before {
  content: "✧";
  top: 46px;
  left: 22px;
}

.ui-mockup::after {
  content: "✦";
  right: 18px;
  bottom: 46px;
}

.coded-phone {
  position: relative;
  z-index: 2;
  width: min(360px, 84%);
  min-height: 570px;
  padding: 20px;
  border: 7px solid rgba(9, 11, 15, 0.76);
  border-radius: 40px;
  background:
    linear-gradient(180deg, rgba(250, 247, 255, 0.98), rgba(255, 255, 255, 0.98)),
    #fff;
  box-shadow:
    0 30px 70px rgba(7, 8, 11, 0.22),
    12px 12px 0 rgba(112, 242, 196, 0.16),
    -12px -12px 0 rgba(155, 108, 255, 0.12);
  transform: translateY(6px);
}

.floating-content-card {
  position: absolute;
  z-index: 1;
  width: 230px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(16px);
}

.floating-left {
  left: -22px;
  top: 82px;
  transform: rotate(-7deg);
}

.floating-right {
  right: -24px;
  bottom: 72px;
  transform: rotate(6deg);
  box-shadow: var(--glass-shadow);
}

.mini-media {
  position: relative;
  display: grid;
  align-content: end;
  min-height: 104px;
  overflow: hidden;
  padding: 13px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(7, 8, 11, 0.96), rgba(112, 242, 196, 0.88));
  color: #fffdf0;
}

.mini-media.accent {
  background:
    linear-gradient(135deg, #07080b, #9b6cff 52%, #70f2c4);
}

.mini-media span {
  max-width: 150px;
  font-size: 24px;
  font-weight: 950;
  line-height: 0.9;
  text-shadow: 0 12px 28px rgba(7, 8, 11, 0.2);
}

.mini-media button {
  position: absolute;
  right: 12px;
  top: 50%;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.24);
  color: #efe6ff;
  transform: translateY(-50%);
}

.floating-content-card h3 {
  margin: 13px 0 8px;
  font-size: 28px;
  line-height: 1;
}

.floating-content-card .translation-pill {
  margin-bottom: 11px;
  font-size: 12px;
}

.floating-content-card p {
  margin: 0;
  padding-left: 12px;
  border-left: 3px solid #d8cbff;
  color: #4f5966;
  font-size: 12px;
  font-weight: 720;
  line-height: 1.45;
}

.coded-phone::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 50%;
  width: 100px;
  height: 28px;
  border-radius: 999px;
  background: #050607;
  transform: translateX(-50%);
}

.phone-status,
.phone-profile,
.phone-toggle,
.phone-tabs {
  position: relative;
  z-index: 1;
}

.phone-status {
  display: flex;
  justify-content: space-between;
  margin-bottom: 24px;
  font-size: 12px;
  font-weight: 900;
}

.phone-profile {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
}

.avatar,
.icon-button {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 10px 24px rgba(18, 20, 23, 0.08);
}

.phone-profile strong {
  color: #4a425a;
  font-size: 12px;
  letter-spacing: 2px;
}

.phone-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin: 0 auto 20px;
  padding: 5px;
  width: 78%;
  border-radius: 999px;
  background: rgba(18, 20, 23, 0.06);
  color: rgba(18, 20, 23, 0.34);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.phone-toggle span {
  display: grid;
  place-items: center;
  min-height: 34px;
  border-radius: 999px;
}

.phone-toggle span:first-child {
  background: rgba(255, 255, 255, 0.92);
  color: #22252a;
  box-shadow: 0 8px 18px rgba(18, 20, 23, 0.08);
}

.culture-card {
  position: relative;
  z-index: 1;
  padding: 16px;
  border: 2px solid rgba(7, 8, 11, 0.08);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(7, 8, 11, 0.14);
}

.meme-media {
  position: relative;
  display: grid;
  align-content: end;
  min-height: 145px;
  overflow: hidden;
  padding: 16px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, #07080b, #5e6570 48%, #70f2c4);
  color: #fffdf0;
}

.meme-media span {
  max-width: 190px;
  font-size: 27px;
  font-weight: 950;
  line-height: 0.92;
  text-shadow: 0 12px 28px rgba(7, 8, 11, 0.22);
}

.meme-media button {
  position: absolute;
  right: 18px;
  top: 50%;
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
  color: #efe6ff;
  transform: translateY(-50%);
}

.culture-card h3 {
  margin: 16px 0 9px;
  font-size: 30px;
  line-height: 1;
}

.translation-pill {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(7, 8, 11, 0.1);
  background: linear-gradient(135deg, #e9fff7, #f2eaff);
  color: #25302f;
  font-size: 13px;
  font-weight: 850;
}

.culture-card p {
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid #d8cbff;
  color: #4f5966;
  font-size: 14px;
  font-weight: 720;
  line-height: 1.55;
}

.phone-tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  color: rgba(18, 20, 23, 0.45);
  text-align: center;
  font-size: 18px;
  font-weight: 900;
}

.phone-tabs .tab-active {
  display: grid;
  place-items: center;
  height: 44px;
  border-radius: 16px;
  background: rgba(245, 255, 251, 0.9);
  color: #9a7bf3;
  box-shadow: 0 12px 30px rgba(112, 242, 196, 0.2);
}

.laugh {
  position: absolute;
  z-index: 2;
  font-size: 24px;
  filter: drop-shadow(0 8px 12px rgba(18, 20, 23, 0.18));
}

.laugh.e1 {
  left: -18px;
  bottom: 156px;
}

.laugh.e2 {
  right: -16px;
  bottom: 116px;
}

.laugh.e3 {
  left: 46%;
  bottom: 76px;
}

.mock-phone {
  width: min(100%, 360px);
  min-height: 620px;
  border: 7px solid rgba(9, 11, 15, 0.76);
  border-radius: 42px;
  background: linear-gradient(180deg, #fff, #effaf7);
  padding: 20px;
  box-shadow: 0 26px 70px rgba(18, 20, 23, 0.16);
}

.mock-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-weight: 900;
}

.mock-top img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.mock-search {
  min-height: 46px;
  display: flex;
  align-items: center;
  margin-bottom: 14px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7fbfb;
  color: var(--muted);
  font-size: 14px;
  font-weight: 720;
}

.mock-card {
  padding: 18px;
  margin-bottom: 14px;
}

.mock-card.featured {
  background: var(--ink);
  color: #fff;
}

.mock-card span {
  display: block;
  margin-bottom: 10px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.mock-card.featured span {
  color: var(--mint);
}

.mock-card strong {
  display: block;
  font-size: 26px;
  line-height: 1.12;
}

.mock-card p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.55;
}

.mock-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.mock-tabs span {
  padding: 9px 10px;
  border-radius: 999px;
  background: var(--mint-soft);
  color: var(--teal);
  font-size: 13px;
  font-weight: 860;
}

.section {
  padding: 96px 0;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 30px;
}

.section-heading p {
  margin: 18px 0 0;
  font-size: 18px;
}

.content-grid,
.audience-grid {
  display: grid;
  gap: 16px;
}

.content-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1fr);
  gap: 42px;
  align-items: center;
}

.content-section .section-heading {
  margin-bottom: 22px;
}

.content-pills {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.content-pills span {
  min-height: 78px;
  display: flex;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--glass-line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(112, 242, 196, 0.18), transparent 42%),
    var(--surface);
  color: #26313a;
  font-size: 18px;
  font-weight: 880;
  box-shadow: var(--glass-shadow);
}

.content-pills span:nth-child(2n) {
  background:
    linear-gradient(90deg, rgba(155, 108, 255, 0.18), transparent 42%),
    #fff;
  color: var(--ink);
}

.content-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 16px;
}

.content-grid article,
.audience-grid article {
  min-height: 250px;
  padding: 22px;
  border: 1px solid var(--glass-line);
  background: #fff;
  box-shadow: var(--glass-shadow);
}

.audience-grid article {
  padding: 0;
}

.content-grid article {
  min-height: 210px;
}

.content-grid h3 {
  margin: 28px 0 12px;
  font-size: 22px;
}

.content-grid p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.62;
}

.teaching-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.teaching-flow div {
  padding: 20px;
  background: var(--surface);
}

.teaching-flow span {
  display: block;
  margin-bottom: 10px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.teaching-flow p {
  margin: 0;
  color: var(--muted);
  line-height: 1.58;
}

.content-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--glass-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--pop-shadow), var(--shadow);
}

.content-visual::before,
.real-video::before,
.culture-visual::before,
.scenario-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(112, 242, 196, 0.22), transparent 34%),
    linear-gradient(315deg, rgba(155, 108, 255, 0.18), transparent 36%);
  mix-blend-mode: screen;
}

.content-visual::after,
.real-video::after,
.culture-visual::after,
.scenario-visual::after {
  content: "";
  position: absolute;
  inset: 12px;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 6px;
  pointer-events: none;
}

.content-visual img {
  display: block;
  width: 100%;
  min-height: 620px;
  object-fit: cover;
  filter: saturate(1.16) contrast(1.03);
}

.real-world {
  display: grid;
  grid-template-columns: minmax(380px, 0.86fr) minmax(0, 1fr);
  gap: 52px;
  align-items: center;
  padding: 88px 0;
  border-top: 1px solid rgba(116, 150, 145, 0.16);
  border-bottom: 1px solid rgba(116, 150, 145, 0.16);
}

.real-world p {
  max-width: 640px;
  margin: 22px 0 0;
  font-size: 18px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.tag-row span {
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--teal);
  font-size: 13px;
  font-weight: 860;
}

.source-tags {
  gap: 10px;
  max-width: 680px;
}

.source-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 0;
  border-bottom: 2px solid rgba(7, 8, 11, 0.12);
  border-radius: 0;
  background: transparent;
  color: #27323c;
  box-shadow: none;
}

.source-tags span::before {
  content: "#";
  color: var(--teal);
  font-size: 15px;
  font-weight: 950;
}

.source-tags span:nth-child(even)::before {
  color: #7b61ff;
}

.source-tags span:nth-child(3n)::before {
  color: #d58b19;
}

.source-tags span:nth-child(4n)::before {
  color: #db4b57;
}

.source-tags span:nth-child(5n)::before {
  color: #2f91d8;
}

.scenario-tags {
  gap: 12px;
}

.scenario-tags span {
  position: relative;
  padding: 12px 15px 12px 32px;
  border: 0;
  border-radius: 8px;
  background: #eaf8f4;
  color: #183a35;
  box-shadow: 0 12px 28px rgba(18, 20, 23, 0.06);
}

.scenario-tags span::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--teal);
  transform: translateY(-50%);
}

.scenario-tags span:nth-child(2) {
  background: #e9f5ff;
}

.scenario-tags span:nth-child(2)::before {
  background: var(--cyan);
}

.scenario-tags span:nth-child(3) {
  background: #fff4df;
}

.scenario-tags span:nth-child(3)::before {
  background: var(--amber);
}

.scenario-tags span:nth-child(4) {
  background: #eef7ea;
}

.scenario-tags span:nth-child(4)::before {
  background: #79a95f;
}

.scenario-tags span:nth-child(5) {
  background: #fff0ee;
}

.scenario-tags span:nth-child(5)::before {
  background: var(--coral);
}

.real-video {
  position: relative;
  overflow: hidden;
  min-height: 470px;
  border: 1px solid var(--glass-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--glass-shadow);
}

.real-video img {
  width: 100%;
  min-height: 470px;
  display: block;
  object-fit: cover;
  filter: saturate(1.16) contrast(1.03);
}

.environment-card {
  position: absolute;
  min-height: 48px;
  padding: 14px 16px;
  color: #26313a;
  font-weight: 860;
}

.environment-card.work {
  top: 28px;
  left: 28px;
}

.environment-card.media {
  top: 112px;
  right: 30px;
}

.environment-card.campus {
  bottom: 54px;
  left: 44px;
}

.capture-phone {
  position: absolute;
  right: 24px;
  bottom: 24px;
  width: min(260px, 70%);
  padding: 22px;
  z-index: 3;
  background: rgba(7, 8, 11, 0.9);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 26px 70px rgba(7, 8, 11, 0.22), 0 0 44px rgba(112, 242, 196, 0.18);
  backdrop-filter: blur(16px);
}

.capture-phone span {
  color: var(--mint);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.capture-phone strong {
  display: block;
  margin: 16px 0 8px;
  font-size: 34px;
}

.capture-phone p {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
}

.circle-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.circle-map div {
  display: grid;
  place-items: center;
  min-height: 86px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: #26313a;
  font-weight: 880;
  text-align: center;
}

.circle-map div:nth-child(2n) {
  background: var(--mint-soft);
}

.circle-map div:nth-child(3n) {
  background: #e8f7fb;
}

.circles-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(420px, 1fr);
  gap: 42px;
  align-items: center;
}

.circles-section .section-heading {
  margin-bottom: 24px;
}

.culture-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--glass-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--pop-shadow), var(--shadow);
}

.culture-visual img {
  display: block;
  width: 100%;
  min-height: 480px;
  object-fit: cover;
  filter: saturate(1.2) contrast(1.03);
}

.scenarios-section {
  display: grid;
  grid-template-columns: minmax(420px, 1fr) minmax(0, 0.86fr);
  gap: 42px;
  align-items: center;
  border-top: 1px solid rgba(116, 150, 145, 0.16);
}

.scenarios-section .section-heading {
  margin-bottom: 0;
}

.scenario-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--glass-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--pop-shadow), var(--shadow);
}

.scenario-visual img {
  display: block;
  width: 100%;
  min-height: 500px;
  object-fit: cover;
  filter: saturate(1.2) contrast(1.03);
}

.audience-section {
  border-top: 1px solid rgba(116, 150, 145, 0.16);
}

.audience-section .section-heading {
  max-width: 1120px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.audience-section h2 {
  font-size: clamp(34px, 4.4vw, 58px);
}

.audience-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.audience-grid strong {
  display: block;
  margin: 14px 0 10px;
  font-size: 22px;
  line-height: 1.18;
  text-transform: uppercase;
}

.audience-grid em {
  display: block;
  min-height: 42px;
  color: var(--muted);
  font-style: normal;
  font-weight: 720;
  line-height: 1.42;
}

.audience-stat {
  display: block;
  color: var(--ink);
  font-size: 32px;
  font-weight: 920;
  line-height: 1;
  text-shadow: none;
}

.audience-card-link {
  display: block;
  min-height: 230px;
  padding: 22px;
  color: inherit;
  text-decoration: none;
}

.audience-card-link:focus-visible {
  outline: 3px solid rgba(19, 103, 89, 0.28);
  outline-offset: 4px;
  border-radius: 8px;
}

.site-footer {
  display: block;
  width: 100%;
  margin: 0;
  padding: 82px max(28px, calc((100% - 1200px) / 2)) 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 12% 12%, rgba(112, 242, 196, 0.18), transparent 30%),
    radial-gradient(circle at 78% 0%, rgba(155, 108, 255, 0.22), transparent 34%),
    linear-gradient(100deg, rgba(5, 18, 15, 1), rgba(8, 9, 14, 1) 58%, rgba(18, 12, 35, 1)),
    var(--ink);
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
  font-weight: 640;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.54fr) minmax(180px, 0.34fr);
  gap: 72px;
  align-items: start;
}

.footer-brand {
  max-width: 620px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-size: 26px;
  font-weight: 880;
  letter-spacing: 0;
}

.footer-logo img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.footer-brand p {
  max-width: 610px;
  margin: 28px 0 30px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 18px;
  font-weight: 620;
  line-height: 1.75;
}

.social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.social-row a {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.78);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  font-size: 12px;
  font-weight: 820;
  transition:
    transform 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.social-row svg,
.contact-link svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.social-row .redbook-link {
  font-size: 11px;
  letter-spacing: 0.04em;
}

.social-row a:hover {
  background: rgba(255, 255, 255, 0.86);
  color: #07100f;
  transform: translateY(-2px);
}

.footer-column {
  display: grid;
  align-content: start;
  gap: 18px;
}

.footer-column h2 {
  margin: 0 0 12px;
  color: rgba(255, 255, 255, 0.46);
  font-size: 11px;
  font-weight: 780;
  letter-spacing: 0.34em;
  text-transform: uppercase;
}

.footer-column a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  font-weight: 680;
  line-height: 1.45;
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.footer-column a:hover {
  color: #fff;
  transform: translateX(2px);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.contact-link span {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.74);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 68px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  color: rgba(255, 255, 255, 0.4);
  font-size: 13px;
  font-weight: 640;
}

/* Premium glass pass: replace heavy sticker strokes with soft translucent structure. */
.brand,
.nav-links,
.hero-actions a,
.store-button,
.content-pills span,
.content-visual,
.real-video,
.culture-visual,
.scenario-visual,
.audience-grid article {
  border-color: var(--glass-line);
}

.brand,
.nav-links {
  background: rgba(255, 255, 255, 0.66);
  box-shadow: 0 18px 44px rgba(47, 73, 80, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.hero {
  border-bottom-color: rgba(116, 150, 145, 0.16);
}

.hero-actions a,
.store-button {
  border-width: 1px;
  box-shadow: 0 18px 44px rgba(47, 73, 80, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.54);
}

.primary-action,
.store-button {
  border-color: rgba(7, 8, 11, 0.72);
  background: rgba(7, 8, 11, 0.94);
}

.secondary-action {
  border-color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
}

.hero-actions a.secondary {
  background: rgba(255, 255, 255, 0.74);
}

.content-pills span {
  min-height: 72px;
  border-width: 1px;
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(112, 242, 196, 0.18), rgba(255, 255, 255, 0.68) 46%, rgba(255, 255, 255, 0.46)),
    rgba(255, 255, 255, 0.62);
  box-shadow: 0 18px 46px rgba(47, 73, 80, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
}

.content-pills span:nth-child(2n) {
  background:
    linear-gradient(135deg, rgba(192, 124, 255, 0.18), rgba(255, 255, 255, 0.7) 48%, rgba(255, 255, 255, 0.46)),
    rgba(255, 255, 255, 0.62);
}

.content-visual,
.real-video,
.culture-visual,
.scenario-visual {
  border-width: 1px;
  border-radius: 22px;
  background: var(--glass-surface);
  box-shadow: var(--glass-shadow);
}

.content-visual::after,
.real-video::after,
.culture-visual::after,
.scenario-visual::after {
  border-color: rgba(255, 255, 255, 0.72);
  border-radius: 18px;
}

.real-world,
.app-section,
.scenarios-section,
.audience-section {
  border-color: rgba(116, 150, 145, 0.18);
}

.capture-phone {
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 20px;
  box-shadow: 0 26px 70px rgba(7, 8, 11, 0.22), 0 0 44px rgba(112, 242, 196, 0.18);
}

.coded-phone {
  border-color: rgba(7, 8, 11, 0.78);
  box-shadow: 0 32px 80px rgba(45, 67, 77, 0.18), 0 0 90px rgba(112, 242, 196, 0.15);
}

.floating-content-card {
  border-width: 1px;
  border-color: rgba(255, 255, 255, 0.72);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: 0 28px 70px rgba(45, 67, 77, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.86);
}

.site-footer {
  border-top-color: rgba(255, 255, 255, 0.08);
}

.audience-section {
  padding-top: 112px;
  padding-bottom: 110px;
}

.audience-section .section-heading {
  max-width: 980px;
  margin-bottom: 48px;
}

.audience-section h2 {
  max-width: 900px;
  margin-right: auto;
  margin-left: auto;
  font-size: clamp(40px, 5.2vw, 76px);
  line-height: 0.95;
}

.audience-section .section-heading p {
  max-width: 900px;
  margin: 24px auto 0;
  color: rgba(80, 89, 103, 0.88);
  font-size: 19px;
  line-height: 1.75;
}

.audience-grid {
  gap: 18px;
}

.audience-grid article {
  position: relative;
  overflow: hidden;
  min-height: 250px;
  border-width: 1px;
  border-radius: 24px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.76), rgba(255, 255, 255, 0.42)),
    radial-gradient(circle at 18% 0%, rgba(112, 242, 196, 0.2), transparent 38%),
    radial-gradient(circle at 100% 100%, rgba(155, 108, 255, 0.16), transparent 40%);
  box-shadow: 0 26px 70px rgba(47, 73, 80, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
}

.audience-grid article::after {
  content: "";
  position: absolute;
  right: -28px;
  bottom: -36px;
  width: 110px;
  height: 110px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(112, 242, 196, 0.28), rgba(155, 108, 255, 0.1) 52%, transparent 68%);
  pointer-events: none;
}

.audience-card-link {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 250px;
  padding: 26px;
  flex-direction: column;
  justify-content: flex-start;
}

.audience-stat {
  color: #0b6d61;
  font-size: clamp(36px, 3vw, 48px);
  font-weight: 900;
  letter-spacing: 0;
  text-shadow: none;
}

.audience-grid strong {
  margin: 18px 0 12px;
  color: rgba(7, 8, 11, 0.92);
  font-size: 18px;
  font-weight: 850;
  line-height: 1.16;
  letter-spacing: 0;
  text-transform: none;
}

.audience-grid em {
  max-width: 240px;
  min-height: auto;
  color: rgba(80, 89, 103, 0.82);
  font-size: 15px;
  font-weight: 650;
  line-height: 1.45;
}

/* Final polish: keep the whole page in one premium glass language. */
.brand,
.nav-links {
  border-width: 1px;
  border-color: rgba(255, 255, 255, 0.72);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.76), rgba(255, 255, 255, 0.48)),
    rgba(255, 255, 255, 0.58);
  box-shadow: 0 18px 52px rgba(31, 55, 62, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

.nav-links .nav-download {
  background: rgba(8, 10, 14, 0.9);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 12px 28px rgba(31, 55, 62, 0.12);
}

.hero,
.app-section,
.real-world,
.scenarios-section,
.audience-section {
  border-width: 1px;
  border-color: rgba(128, 159, 154, 0.16);
}

.primary-action,
.secondary-action,
.store-button {
  border-width: 1px;
  border-radius: 14px;
}

.primary-action,
.store-button {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(8, 10, 14, 0.92);
}

.secondary-action {
  color: rgba(7, 8, 11, 0.9);
  border-color: rgba(255, 255, 255, 0.72);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.84), rgba(255, 255, 255, 0.58)),
    rgba(255, 255, 255, 0.68);
}

.video-frame,
.phone-preview,
.mock-phone,
.coded-phone,
.floating-content-card,
.content-pills span,
.content-grid article,
.content-visual,
.real-video,
.culture-visual,
.scenario-visual,
.audience-grid article {
  border-color: rgba(255, 255, 255, 0.74);
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.phone-preview,
.mock-phone,
.coded-phone {
  border-width: 7px;
  border-color: rgba(9, 11, 15, 0.76);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(246, 253, 251, 0.94)),
    rgba(255, 255, 255, 0.86);
  box-shadow: 0 34px 90px rgba(35, 52, 62, 0.18), 0 0 70px rgba(112, 242, 196, 0.14);
}

.floating-content-card,
.content-grid article {
  border-width: 1px;
  border-radius: 22px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.46)),
    rgba(255, 255, 255, 0.62);
  backdrop-filter: blur(18px);
}

.source-tags span {
  border-bottom-color: rgba(116, 150, 145, 0.18);
}

.capture-phone {
  background: rgba(8, 10, 14, 0.82);
}

.audience-section {
  background:
    radial-gradient(circle at 18% 20%, rgba(112, 242, 196, 0.16), transparent 34%),
    radial-gradient(circle at 82% 28%, rgba(192, 124, 255, 0.14), transparent 32%);
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .brand {
    width: fit-content;
  }

  .hero,
  .app-section,
  .content-section,
  .real-world,
  .circles-section,
  .scenarios-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 46px;
  }

  .content-grid,
  .audience-grid,
  .teaching-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content-visual img {
    min-height: 520px;
  }

  .scenario-visual img {
    min-height: 480px;
  }

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

  .floating-left {
    left: 4%;
    top: 58px;
  }

  .floating-right {
    right: 4%;
    bottom: 58px;
  }
}

@media (max-width: 620px) {
  .site-header,
  .hero,
  .app-section,
  .section,
  .real-world,
  .scenarios-section {
    width: min(100% - 28px, 1200px);
  }

  .site-header {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 10px;
  }

  .nav-links {
    justify-self: center;
    width: 100%;
    justify-content: center;
  }

  .nav-links a {
    flex: 1;
    justify-content: center;
    padding: 0 10px;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  h1 {
    font-size: clamp(48px, 15vw, 68px);
  }

  h2 {
    font-size: clamp(34px, 12vw, 48px);
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-actions a {
    width: 100%;
  }

  .video-frame {
    aspect-ratio: auto;
    min-height: 560px;
    padding: 18px;
  }

  .phone-preview {
    right: 6%;
    width: 72%;
  }

  .conversation-lines {
    width: 52%;
  }

  .ui-mockup {
    min-height: 680px;
    padding: 18px 0;
  }

  .coded-phone {
    width: min(330px, 88%);
  }

  .floating-content-card {
    width: 190px;
    opacity: 0.92;
  }

  .floating-left {
    left: -4px;
    top: 28px;
    transform: rotate(-5deg);
  }

  .floating-right {
    right: -4px;
    bottom: 26px;
    transform: rotate(5deg);
  }

  .mini-media {
    min-height: 82px;
  }

  .mini-media span {
    font-size: 20px;
  }

  .floating-content-card h3 {
    font-size: 24px;
  }

  .floating-content-card p {
    display: none;
  }

  .mock-phone {
    min-height: 560px;
    border-width: 8px;
  }

  .content-grid,
  .audience-grid,
  .content-pills,
  .teaching-flow,
  .circle-map {
    grid-template-columns: 1fr;
  }

  .real-video {
    min-height: 500px;
  }

  .capture-phone {
    width: 78%;
  }

  .site-footer {
    padding: 44px 20px 28px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .footer-brand p {
    font-size: 17px;
  }

  .footer-bottom {
    flex-direction: column;
    margin-top: 38px;
  }
}