:root {
  --cream: #fbf8f1;
  --paper: #fffdf8;
  --ink: #152d35;
  --muted: #667479;
  --coral: #ef6b56;
  --blue: #7dbdc2;
  --yellow: #f2c95c;
  --line: rgba(21, 45, 53, 0.14);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 108px;
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--cream);
  font-family: "Noto Sans SC", "DM Sans", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  display: block;
  max-width: 100%;
}
.section-shell,
.footer-inner {
  width: min(1160px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  width: 100%;
  padding-inline: max(24px, calc((100% - 1160px) / 2));
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--cream);
  transition: box-shadow 0.2s ease;
}
.site-header.is-scrolled {
  box-shadow:
    0 1px 0 var(--line),
    0 8px 20px -8px rgba(21, 45, 53, 0.2);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font:
    800 20px/1 "Manrope",
    "Noto Sans SC",
    sans-serif;
  letter-spacing: -0.04em;
}
.brand img {
  border-radius: 12px;
}
nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-size: 14px;
  font-weight: 600;
}
nav a {
  transition: opacity 0.2s ease;
}
nav a:hover {
  opacity: 0.65;
}
.nav-cta {
  border: 1px solid var(--ink);
  border-radius: 100px;
  padding: 12px 19px;
}

.hero {
  min-height: 715px;
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  padding: 56px 0 95px;
}
.hero-copy {
  position: relative;
  z-index: 2;
}
.eyebrow,
.section-kicker {
  margin: 0 0 22px;
  text-transform: uppercase;
  letter-spacing: 0.17em;
  font-size: 11px;
  font-weight: 700;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow span {
  width: 28px;
  height: 2px;
  background: var(--coral);
}
h1,
h2,
h3 {
  font-family: "Noto Sans SC", "Manrope", sans-serif;
}
h1 {
  margin: 0;
  font-size: clamp(48px, 5vw, 72px);
  line-height: 1.16;
  letter-spacing: -0.055em;
  font-weight: 800;
}
h1 em {
  color: var(--coral);
  font-style: normal;
}
.hero-intro {
  max-width: 550px;
  margin: 34px 0 0;
  font-size: 19px;
  line-height: 1.65;
  color: var(--muted);
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-top: 34px;
}
.button {
  display: inline-flex;
  gap: 26px;
  align-items: center;
  justify-content: center;
  padding: 16px 22px;
  border-radius: 100px;
  font-weight: 700;
}
.button-primary {
  background: var(--ink);
  color: white;
  box-shadow: 0 10px 25px rgba(21, 45, 53, 0.18);
}
.text-link {
  font-size: 14px;
  font-weight: 700;
}
.text-link span {
  color: var(--coral);
  margin-left: 6px;
}
.trust-row {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  color: #839095;
  font-size: 12px;
}

.hero-visual {
  min-height: 580px;
  position: relative;
  display: grid;
  place-items: center;
}
.orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(21, 45, 53, 0.1);
}
.orbit-one {
  width: 520px;
  height: 520px;
}
.orbit-two {
  width: 390px;
  height: 390px;
  border-style: dashed;
}
.word-chip {
  position: absolute;
  z-index: 4;
  padding: 10px 16px;
  border-radius: 100px;
  background: white;
  box-shadow: 0 10px 28px rgba(21, 45, 53, 0.1);
  font-size: 12px;
  font-weight: 700;
}
.chip-one {
  left: 5%;
  top: 24%;
  transform: rotate(-8deg);
}
.chip-two {
  right: 3%;
  top: 40%;
  transform: rotate(8deg);
  background: var(--yellow);
}
.chip-three {
  left: 10%;
  bottom: 17%;
  transform: rotate(5deg);
  background: var(--blue);
  color: white;
}
.phone {
  width: 288px;
  padding: 9px;
  border: 2px solid var(--ink);
  border-radius: 43px;
  background: var(--ink);
  transform: rotate(4deg);
  box-shadow: 0 35px 65px rgba(21, 45, 53, 0.25);
  position: relative;
  z-index: 2;
}
.phone-screen {
  min-height: 565px;
  background: #fff;
  border-radius: 33px;
  padding: 16px 18px 20px;
  overflow: hidden;
}
.phone-status {
  display: flex;
  justify-content: space-between;
  font-size: 8px;
  font-weight: 700;
}
button {
  font: inherit;
}
button:focus-visible, a:focus-visible {
  outline: 3px solid #4f46e5;
  outline-offset: 4px;
}
.lesson-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 18px 0 12px;
  color: #0f172a;
}
.lesson-header strong {
  font-size: 11px;
}
.lesson-header > span {
  color: #6366f1;
  font-size: 22px;
}
.lesson-summary {
  padding: 10px;
  background: #f8fafc;
  border-radius: 10px;
  font-size: 10px;
  line-height: 1.6;
  color: #334155;
}
.preview-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 4px 6px;
  background: #ffffffdb;
  border-radius: 5px;
  font-size: 8px;
}
.video-caption {
  position: absolute;
  bottom: 7px;
  left: 6px;
  right: 6px;
  z-index: 3;
  margin: 0;
  padding: 5px 3px;
  text-align: center;
  color: white;
  background: #0f172ac9;
  font-size: 10px;
}
.lesson-timeline {
  height: 3px;
  background: #e2e8f0;
  border-radius: 5px;
  overflow: hidden;
}
.lesson-timeline span {
  display: block;
  width: 33.333%;
  height: 100%;
  background: #6366f1;
}
.lesson-time {
  display: flex;
  justify-content: space-between;
  margin-top: 5px;
  font-size: 8px;
  color: #64748b;
}
.lesson-transport, .lesson-options {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  margin-top: 9px;
}
.lesson-transport button, .preview-play, .lesson-options button, .lesson-options > span {
  border: 0;
  border-radius: 100px;
  background: #e2e8f0;
  color: #1f2937;
  display: grid;
  place-items: center;
}
.lesson-transport button {
  width: 34px;
  height: 34px;
  font-size: 11px;
  cursor: pointer;
}
.preview-play {
  width: 40px;
  height: 40px;
  color: white;
  background: #6366f1;
  font-size: 14px;
}
.lesson-options button, .lesson-options > span {
  height: 27px;
  padding: 0 10px;
  font-size: 10px;
}
.lesson-options button {
  cursor: pointer;
}
.lesson-options button[aria-pressed="true"] {
  background: #c7d2fe;
  color: #4f46e5;
}
.transcript-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 16px 0 8px;
  font-size: 11px;
}
.transcript-heading > span {
  color: #64748b;
  font-size: 8px;
}
.lesson-transcript {
  display: grid;
  gap: 4px;
}
.lesson-transcript button {
  width: 100%;
  padding: 8px;
  border: 0;
  border-radius: 7px;
  background: white;
  text-align: left;
  cursor: pointer;
  color: #374151;
  font-size: 10px;
  line-height: 1.5;
}
.lesson-transcript small {
  display: block;
  margin-top: 2px;
  color: #6b7280;
  font-size: 9px;
}
.lesson-transcript button[aria-pressed="true"] {
  background: #eef2ff;
  color: #4f46e5;
}
.lesson-transcript button[aria-pressed="true"] small {
  color: #6366f1;
}
.preview-note {
  text-align: center;
  color: #64748b;
  font-size: 8px;
  margin: 12px 0 0;
}
.lesson-art {
  height: 137px;
  margin: 12px 0;
  background: #b7d8d7;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}
.sun {
  position: absolute;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--yellow);
  right: 20px;
  top: 18px;
}
.market-body {
  position: absolute;
  width: 170px;
  height: 85px;
  background: #f4e6c9;
  left: 37px;
  bottom: 0;
}
.awning {
  position: absolute;
  display: flex;
  width: 196px;
  height: 50px;
  left: 24px;
  bottom: 71px;
  transform: skew(-8deg);
}
.awning i {
  flex: 1;
  background: var(--paper);
}
.awning i:nth-child(odd) {
  background: var(--coral);
}
.fruit {
  position: absolute;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  bottom: 21px;
  z-index: 2;
  background: #e15c47;
  box-shadow:
    18px 3px 0 #f0bd49,
    36px -1px 0 #d75e3c;
}
.fruit-one {
  left: 51px;
}
.fruit-two {
  left: 116px;
  filter: hue-rotate(24deg);
}
.fruit-three {
  left: 176px;
  filter: hue-rotate(295deg);
}
.manifesto {
  padding: 130px 0;
  text-align: center;
  border-top: 1px solid var(--line);
}
.section-kicker {
  color: var(--coral);
}
.manifesto h2,
.section-heading h2,
.how h2,
.studio h2,
.download h2 {
  margin: 0;
  font-size: clamp(42px, 5.4vw, 76px);
  line-height: 1.03;
  letter-spacing: -0.055em;
}
.manifesto > p:last-child {
  max-width: 685px;
  margin: 30px auto 0;
  font-size: 18px;
  line-height: 1.75;
  color: var(--muted);
}
.features {
  padding: 110px 0 130px;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 56px;
}
.section-heading > p {
  width: 350px;
  color: var(--muted);
  line-height: 1.7;
}
.feature-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}
.feature-card {
  min-height: 330px;
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  position: relative;
}
.feature-card-large {
  min-height: 470px;
  grid-row: span 2;
}
.feature-card-wide {
  grid-column: 1 / -1;
  min-height: 285px;
}
.card-coral {
  background: var(--coral);
  color: white;
}
.card-blue {
  background: var(--blue);
}
.card-yellow {
  background: var(--yellow);
}
.card-ink {
  background: var(--ink);
  color: white;
}
.card-number {
  font-size: 11px;
  font-weight: 700;
  opacity: 0.65;
  letter-spacing: 0.1em;
}
.feature-card h3 {
  margin: 0 0 10px;
  font-size: 27px;
  letter-spacing: -0.035em;
}
.feature-card p {
  max-width: 430px;
  margin: 0;
  line-height: 1.55;
  opacity: 0.78;
}
.feature-icon {
  position: absolute;
  right: 38px;
  top: 46px;
}
.sound-icon {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 130px;
}
.sound-icon span {
  display: block;
  width: 12px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
}
.sound-icon span:nth-child(1),
.sound-icon span:nth-child(5) {
  height: 44px;
}
.sound-icon span:nth-child(2),
.sound-icon span:nth-child(4) {
  height: 84px;
}
.sound-icon span:nth-child(3) {
  height: 122px;
}
.mic-icon {
  width: 80px;
  height: 112px;
  border: 8px solid var(--ink);
  border-radius: 48px;
  display: grid;
  place-items: center;
  font-size: 19px;
}
.chart-icon {
  display: flex;
  align-items: flex-end;
  gap: 9px;
  height: 95px;
}
.chart-icon span {
  width: 24px;
  background: var(--ink);
  border-radius: 5px 5px 0 0;
}
.chart-icon span:nth-child(1) {
  height: 38%;
}
.chart-icon span:nth-child(2) {
  height: 66%;
}
.chart-icon span:nth-child(3) {
  height: 100%;
}
.feature-copy-wide {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 80px;
  align-items: end;
}
.level-meter {
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.level-meter span {
  font-size: 11px;
  padding-bottom: 10px;
  position: relative;
  color: rgba(255, 255, 255, 0.65);
}
.level-meter span::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: var(--level);
  border-radius: 5px;
  background: var(--coral);
}

.how {
  padding: 130px 0;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 90px;
  border-top: 1px solid var(--line);
}
.steps {
  padding: 0;
  margin: 0;
  list-style: none;
}
.steps li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.steps li > span {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--coral);
  font-weight: 700;
}
.steps h3 {
  margin: 0 0 8px;
  font-size: 21px;
}
.steps p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}
.studio {
  padding: 20px 0 140px;
}
.studio-card {
  min-height: 560px;
  padding: clamp(45px, 7vw, 90px);
  border-radius: 36px;
  background: #d9e8e4;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  overflow: hidden;
}
.studio-copy > p:not(.section-kicker) {
  max-width: 520px;
  color: #53696e;
  line-height: 1.7;
  margin: 25px 0;
}
.studio-pill {
  display: inline-block;
  border: 1px solid rgba(21, 45, 53, 0.2);
  padding: 10px 15px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
}
.studio-stack {
  position: relative;
  height: 360px;
}
.stack-card {
  position: absolute;
  width: 255px;
  height: 315px;
  border: 0;
  text-align: left;
  cursor: pointer;
  transition: transform 0.4s ease, top 0.4s ease, right 0.4s ease;
  border-radius: 24px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 45px rgba(21, 45, 53, 0.12);
}
.stack-card span {
  font-size: 11px;
  opacity: 0.6;
}
.stack-card strong {
  margin-top: auto;
  font:
    700 29px "Noto Sans SC",
    "Manrope";
  letter-spacing: -0.04em;
}
.stack-back {
  z-index: 1;
  right: 0;
  top: 0;
  transform: rotate(10deg);
}
.stack-mid {
  z-index: 2;
  right: 50px;
  top: 22px;
  transform: rotate(1deg);
}
.stack-front {
  z-index: 3;
  right: 100px;
  top: 45px;
  transform: rotate(-8deg);
}
.stack-card i {
  position: absolute;
  right: 24px;
  top: 22px;
  font-size: 28px;
  font-style: normal;
  color: var(--yellow);
}

.stack-card[data-step="0"] {
  background: var(--ink);
  color: white;
}
.stack-card[data-step="1"] {
  background: var(--coral);
  color: white;
}
.stack-card[data-step="2"] {
  background: var(--yellow);
  color: var(--ink);
}
.stack-card small {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
}
.stack-card:not(.stack-front) small, .stack-card:not(.stack-front) i {
  visibility: hidden;
}
.studio-demo {
  min-width: 0;
}
.studio-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-top: 28px;
}
.studio-controls button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid #53696e;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 20px;
}
.studio-controls button:hover {
  background: var(--ink);
  color: white;
}
.studio-controls span {
  font: 600 12px "DM Sans", sans-serif;
  letter-spacing: 0.12em;
}
#studio-description {
  min-height: 5.1em;
  max-width: 340px;
  margin: 16px auto 0;
  font-size: 13px;
  line-height: 1.7;
  color: #53696e;
  text-align: center;
}

.download {
  text-align: center;
  padding: 140px 0 150px;
}
.download-mark {
  width: 72px;
  height: 72px;
  margin: 0 auto 30px;
}
.download-mark img {
  border-radius: 19px;
  box-shadow: 0 15px 35px rgba(21, 45, 53, 0.16);
}
.download > p:not(.section-kicker):not(.availability) {
  max-width: 560px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}
.store-links {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 35px;
}
.store-button {
  min-width: 190px;
  padding: 11px 20px;
  border-radius: 12px;
  background: var(--ink);
  color: white;
  display: flex;
  align-items: center;
  gap: 13px;
  text-align: left;
}
.store-button small {
  display: block;
  font-size: 9px;
  letter-spacing: 0.05em;
}
.store-button strong {
  display: block;
  font-size: 20px;
  line-height: 1.05;
}
.store-symbol {
  font-size: 22px;
}
.triangle {
  font-size: 18px;
}
.store-button.is-unavailable {
  cursor: default;
  opacity: 0.88;
}
.availability {
  color: #889397;
  font-size: 11px;
  margin-top: 17px;
}
footer {
  background: var(--ink);
  color: white;
  padding: 45px 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  gap: 30px;
}
.footer-brand img {
  border-radius: 9px;
}
.footer-inner > p {
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
}
.footer-registration {
  margin: 28px 15px 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  line-height: 1.6;
}
.footer-registration a {
  display: inline-block;
}
.footer-registration a:hover {
  color: white;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.footer-links {
  display: flex;
  gap: 22px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 12px;
}

@media (max-width: 900px) {
  nav a:not(.nav-cta) {
    display: none;
  }
  .hero {
    grid-template-columns: 1fr;
    padding-top: 55px;
  }
  .hero-visual {
    margin-top: 45px;
  }
  .section-heading,
  .how {
    grid-template-columns: 1fr;
    display: grid;
    gap: 36px;
  }
  .section-heading > p {
    width: auto;
    max-width: 500px;
  }
  .studio-card {
    grid-template-columns: 1fr;
  }
  .studio-stack {
    margin-top: 50px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .section-shell,
  .footer-inner {
    width: min(100% - 30px, 1160px);
  }
  .site-header {
    height: 76px;
    padding-inline: 15px;
  }
  .brand {
    font-size: 18px;
  }
  .brand img {
    width: 36px;
    height: 36px;
  }
  .nav-cta {
    padding: 10px 14px;
  }
  .hero {
    min-height: auto;
    padding: 50px 0 70px;
  }
  h1 {
    font-size: clamp(34px, 9.5vw, 60px);
  }
  .hero-intro {
    font-size: 17px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .hero-visual {
    min-height: 540px;
    transform: scale(0.9);
    margin-inline: -20px;
  }
  .orbit-one {
    width: min(420px, 100%);
    aspect-ratio: 1;
    height: auto;
  }
  .orbit-two {
    width: min(390px, 100%);
    aspect-ratio: 1;
    height: auto;
  }
  .manifesto,
  .features,
  .how,
  .download {
    padding-top: 90px;
    padding-bottom: 90px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .feature-card,
  .feature-card-large {
    min-height: 350px;
    grid-row: auto;
  }
  .feature-card-wide {
    grid-column: auto;
    min-height: 420px;
  }
  .feature-copy-wide {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .feature-icon {
    transform: scale(0.8);
    transform-origin: right top;
  }
  .studio {
    padding-bottom: 90px;
  }
  .studio-card {
    padding: 48px 28px;
  }
  .studio-stack {
    height: 315px;
    width: 355px;
    left: 50%;
    transform: translateX(-50%) scale(0.8);
    transform-origin: center top;
    margin-inline: 0;
  }
  .store-links {
    flex-direction: column;
    align-items: center;
  }
  .store-button {
    width: 210px;
  }
  .footer-links {
    flex-wrap: wrap;
  }
  .footer-inner > p {
    margin: 0;
  }
}

@media (max-width: 380px) {
  .studio-stack {
    height: 260px;
    transform: translateX(-50%) scale(0.65);
  }
}

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