:root {
  --bg: #fbf7ff;
  --ink: #15121f;
  --muted: #625c72;
  --line: rgba(111, 96, 190, 0.16);
  --panel: rgba(255, 255, 255, 0.78);
  --panel-solid: #ffffff;
  --blue: #2678ff;
  --cyan: #21d8f5;
  --violet: #8c54f6;
  --pink: #e070e9;
  --peach: #ffb18f;
  --shadow: 0 26px 90px rgba(116, 82, 222, 0.22);
  --radius: 8px;
  --max: 1160px;
  --font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at 86% 8%, rgba(224, 112, 233, 0.22), transparent 22rem),
    radial-gradient(circle at 10% 24%, rgba(33, 216, 245, 0.18), transparent 24rem),
    var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
}

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

a {
  color: inherit;
}

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  background: rgba(251, 247, 255, 0.82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(100% - 40px, var(--max));
  height: 72px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.12rem;
  font-weight: 900;
  text-decoration: none;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
}

.mobile-lang {
  display: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.nav-links a {
  text-decoration: none;
}

.lang-link {
  padding: 7px 10px;
  color: var(--violet);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.52);
}

.nav-cta {
  padding: 9px 15px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  border-radius: var(--radius);
  box-shadow: 0 16px 36px rgba(83, 93, 236, 0.26);
}

.hero {
  position: relative;
  padding: 118px 0 70px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 72px 0 auto;
  height: 520px;
  background:
    linear-gradient(135deg, rgba(76, 132, 255, 0.18), rgba(224, 112, 233, 0.2)),
    linear-gradient(180deg, #fff, rgba(255, 255, 255, 0));
  pointer-events: none;
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.58fr);
  align-items: center;
  gap: 50px;
}

.hero-copy {
  min-width: 0;
  overflow-wrap: anywhere;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--violet);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 900;
}

.hero h1,
.section h2,
.cta h2 {
  margin: 0;
  line-height: 1.04;
  letter-spacing: 0;
  font-weight: 950;
}

.hero h1 {
  max-width: 700px;
  font-size: clamp(3rem, 6vw, 6.1rem);
}

.lead {
  max-width: 650px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.22rem);
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 34px;
}

.store-link {
  display: inline-flex;
  width: fit-content;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.store-link:hover {
  transform: translateY(-2px);
  filter: brightness(1.04);
}

.store-link img {
  width: auto;
  height: 58px;
}

.text-link {
  color: var(--violet);
  font-weight: 900;
  text-decoration: none;
  border-bottom: 1px solid rgba(140, 84, 246, 0.42);
}

.hero-metrics {
  margin-top: 38px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 620px;
}

.hero-metrics div,
.feature-card,
.screen-card,
.check-list,
.cta-inner {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: 0 18px 60px rgba(112, 91, 170, 0.1);
  backdrop-filter: blur(16px);
}

.hero-metrics div {
  padding: 16px;
}

.hero-metrics strong {
  display: block;
  color: var(--blue);
  font-size: 1.38rem;
  line-height: 1.1;
}

.hero-metrics span {
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-shot {
  justify-self: center;
  width: min(315px, 100%);
  border-radius: 30px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-shot img {
  width: 100%;
  height: auto;
}

.section {
  padding: 92px 0;
}

.section-heading {
  max-width: 820px;
  margin: 0 auto 42px;
  text-align: center;
}

.section h2,
.cta h2 {
  font-size: clamp(2.1rem, 4.3vw, 4.2rem);
}

.feature-band {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(236, 246, 255, 0.82));
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-card {
  min-height: 246px;
  padding: 28px;
  background: var(--panel-solid);
}

.feature-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--pink));
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 950;
}

.feature-card h3 {
  margin: 24px 0 12px;
  font-size: 1.34rem;
  line-height: 1.24;
}

.feature-card p,
.progress-layout p,
.cta p {
  margin: 0;
  color: var(--muted);
}

.screens-section {
  background: #ffffff;
  border-block: 1px solid var(--line);
}

.screen-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.screen-card {
  margin: 0;
  padding: 12px 12px 18px;
  overflow: hidden;
}

.screen-card img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.screen-card figcaption {
  margin-top: 14px;
  color: var(--muted);
  font-weight: 800;
  font-size: 0.95rem;
}

.accent-cyan {
  background: linear-gradient(180deg, rgba(33, 216, 245, 0.12), #fff);
}

.accent-warm {
  background: linear-gradient(180deg, rgba(255, 177, 143, 0.18), #fff);
}

.accent-lilac {
  background: linear-gradient(180deg, rgba(140, 84, 246, 0.12), #fff);
}

.progress-section {
  background:
    linear-gradient(135deg, rgba(140, 84, 246, 0.09), rgba(255, 177, 143, 0.16)),
    #fff8f7;
}

.progress-layout {
  max-width: 920px;
}

.progress-layout h2 {
  margin-bottom: 22px;
}

.check-list {
  max-width: 600px;
  margin: 28px 0 0;
  padding: 22px;
  list-style: none;
  background: rgba(255, 255, 255, 0.68);
}

.check-list li {
  position: relative;
  padding-left: 30px;
  color: var(--ink);
}

.check-list li + li {
  margin-top: 12px;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 0.56em;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue), var(--pink));
}

.cta {
  padding: 96px 0;
}

.cta-inner {
  padding: 58px 24px;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(38, 120, 255, 0.14), rgba(224, 112, 233, 0.16)),
    #fff;
}

.cta-inner p:not(.eyebrow) {
  margin-top: 18px;
}

.cta .store-link {
  margin-top: 30px;
}

.footer {
  padding: 30px 0;
  color: var(--muted);
  background: #fff;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 0.92rem;
}

.footer p {
  margin: 0;
}

.footer a {
  color: var(--violet);
  text-decoration: none;
  font-weight: 800;
}

@media (max-width: 980px) {
  .nav-links a:not(.nav-cta):not(.lang-link) {
    display: none;
  }

  .hero-layout,
  .progress-layout {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    text-align: left;
    width: 100%;
    max-width: 640px;
  }

  .hero h1 {
    max-width: 12ch;
    font-size: clamp(2.75rem, 8vw, 4.35rem);
  }

  .lead {
    max-width: 42ch;
  }

  .hero-shot {
    width: min(310px, 76vw);
  }

  .feature-grid,
  .screen-grid {
    grid-template-columns: 1fr;
  }

  .screen-card {
    max-width: 420px;
    margin-inline: auto;
  }
}

@media (max-width: 640px) {
  .container,
  .nav {
    width: min(100% - 28px, var(--max));
  }

  .nav {
    height: 64px;
    justify-content: flex-start;
  }

  .brand span {
    font-size: 1rem;
  }

  .nav-links {
    margin-left: auto;
    gap: 0;
  }

  .mobile-lang {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    margin-left: auto;
    padding: 7px 10px;
    color: var(--violet);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.62);
    font-size: 0.9rem;
    font-weight: 800;
    text-decoration: none;
    white-space: nowrap;
  }

  .lang-link {
    display: none;
    align-items: center;
    min-height: 36px;
    padding: 7px 10px;
    white-space: nowrap;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    padding-top: 104px;
  }

  .hero h1 {
    max-width: 10ch;
    font-size: clamp(2.45rem, 11vw, 3.35rem);
  }

  html[lang="ja"] .hero h1 {
    max-width: 9em;
    font-size: clamp(2.25rem, 9.5vw, 2.85rem);
  }

  .lead {
    max-width: 31ch;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .store-link img {
    height: 52px;
  }

  .section {
    padding: 72px 0;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}