:root {
  color-scheme: light;
  --ink: #171316;
  --muted: #6f656a;
  --line: rgba(52, 31, 39, 0.12);
  --paper: #fffdfb;
  --wash: #f8f2f1;
  --red: #c80019;
  --red-dark: #9f0014;
  --red-soft: #fff0f2;
  --blue: #3d55a5;
  --shadow: 0 24px 80px rgba(63, 24, 34, 0.1);
  --radius: 28px;
  --content: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% -5%, rgba(200, 0, 25, 0.09), transparent 28rem),
    radial-gradient(circle at 92% 8%, rgba(61, 85, 165, 0.08), transparent 26rem),
    var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(61, 85, 165, 0.5);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--ink);
  color: white;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  background: rgba(255, 253, 251, 0.84);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 12px 35px rgba(52, 31, 39, 0.06);
}

.nav-wrap {
  width: min(calc(100% - 40px), var(--content));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 0.97rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand-mark {
  width: 30px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: white;
  background: linear-gradient(145deg, #e20020, #ae0016);
  box-shadow: 0 8px 20px rgba(200, 0, 25, 0.22);
  font-size: 0.85rem;
  font-weight: 850;
}

.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a,
.language-link {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
  transition: color 160ms ease, background 160ms ease;
}

.nav-links a:hover,
.language-link:hover {
  color: var(--ink);
  background: var(--wash);
}

.language-link {
  border: 1px solid var(--line);
  background: white;
  cursor: pointer;
}

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

.hero {
  min-height: 690px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: clamp(48px, 7vw, 100px);
  padding-block: 92px 104px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--red);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.display {
  max-width: 810px;
  margin: 0;
  font-size: clamp(3rem, 7.2vw, 6.8rem);
  line-height: 0.99;
  letter-spacing: -0.065em;
  font-weight: 780;
}

.display .accent {
  color: var(--red);
}

.hero-copy,
.lead {
  max-width: 680px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
}

.hero-actions,
.button-row {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 760;
  box-shadow: 0 8px 24px rgba(45, 24, 31, 0.05);
  transition: transform 170ms ease, box-shadow 170ms ease, border-color 170ms ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: rgba(52, 31, 39, 0.24);
  box-shadow: 0 13px 30px rgba(45, 24, 31, 0.09);
}

.button.primary {
  border-color: var(--red);
  color: white;
  background: var(--red);
  box-shadow: 0 12px 32px rgba(200, 0, 25, 0.24);
}

.button.primary:hover {
  background: var(--red-dark);
}

.hero-orbit {
  position: relative;
  min-height: 430px;
  display: grid;
  place-items: center;
}

.hero-collection {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: center;
  gap: 12px;
  min-height: 420px;
  padding: 34px 22px;
  border: 1px solid rgba(52, 31, 39, 0.08);
  border-radius: 38px;
  background:
    radial-gradient(circle at 15% 20%, rgba(61, 85, 165, 0.09), transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(200, 0, 25, 0.08), transparent 44%),
    rgba(255, 255, 255, 0.55);
  box-shadow: var(--shadow);
}

.hero-collection::after {
  content: "";
  position: absolute;
  right: 28px;
  bottom: 24px;
  left: 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(52, 31, 39, 0.16), transparent);
}

.collection-card {
  min-width: 0;
  min-height: 230px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 16px;
  border: 1px solid rgba(52, 31, 39, 0.1);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 38px rgba(53, 28, 36, 0.09);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.collection-card:nth-child(1) { transform: translateY(15px) rotate(-2deg); }
.collection-card:nth-child(2) { transform: translateY(-13px); }
.collection-card:nth-child(3) { transform: translateY(13px) rotate(2deg); }

.collection-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 24px 48px rgba(53, 28, 36, 0.14);
}

.collection-card img,
.collection-card .symbol-icon {
  width: 54px;
  height: 54px;
  margin-bottom: auto;
  border-radius: 15px;
}

.collection-card strong {
  max-width: 100%;
  overflow-wrap: anywhere;
  font-size: clamp(0.85rem, 1.4vw, 1.04rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.collection-card small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.69rem;
  line-height: 1.4;
}

.hero-orbit::before,
.hero-orbit::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(200, 0, 25, 0.12);
  border-radius: 50%;
}

.hero-orbit::before {
  width: 420px;
  height: 420px;
}

.hero-orbit::after {
  width: 310px;
  height: 310px;
}

.hero-device {
  position: relative;
  z-index: 2;
  width: min(260px, 64vw);
  padding: 19px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 58px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow);
  transform: rotate(4deg);
}

.hero-device img {
  border-radius: 40px;
}

.orbit-pill {
  position: absolute;
  z-index: 3;
  padding: 10px 15px;
  border: 1px solid rgba(52, 31, 39, 0.09);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 14px 35px rgba(52, 31, 39, 0.09);
  font-size: 0.78rem;
  font-weight: 760;
}

.orbit-pill.one { top: 16%; left: -2%; }
.orbit-pill.two { right: -4%; bottom: 19%; }
.orbit-pill.three { right: 2%; top: 10%; }

.section {
  padding-block: 100px;
}

.section.tinted {
  border-block: 1px solid rgba(52, 31, 39, 0.07);
  background: rgba(248, 242, 241, 0.55);
}

.section-head {
  max-width: 730px;
  margin-bottom: 42px;
}

.section-title {
  margin: 0;
  font-size: clamp(2.1rem, 4.3vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.section-copy {
  margin: 16px 0 0;
  color: var(--muted);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
}

.app-card {
  grid-column: span 4;
  min-height: 340px;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 16px 50px rgba(53, 28, 36, 0.055);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.app-card:hover {
  transform: translateY(-5px);
  border-color: rgba(52, 31, 39, 0.22);
  box-shadow: 0 24px 60px rgba(53, 28, 36, 0.1);
}

.app-card.featured {
  grid-column: span 8;
  background:
    linear-gradient(125deg, rgba(200, 0, 25, 0.94), rgba(160, 0, 19, 0.98)),
    white;
  color: white;
}

.app-card.placeholder {
  background: repeating-linear-gradient(135deg, #fbf8f6, #fbf8f6 14px, #f7f1ef 14px, #f7f1ef 28px);
}

.card-top {
  display: flex;
  align-items: center;
  gap: 15px;
}

.app-icon {
  width: 72px;
  height: 72px;
  flex: 0 0 auto;
  border-radius: 19px;
  object-fit: cover;
  box-shadow: 0 10px 26px rgba(46, 22, 29, 0.15);
}

.symbol-icon {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 18px;
  color: white;
  background: linear-gradient(145deg, #26375f, #566ca8);
  font-size: 1.35rem;
  font-weight: 800;
}

.symbol-icon.review {
  color: #203152;
  background: linear-gradient(145deg, #dce6ff, #aabce8);
}

.symbol-icon.muted {
  color: #8e8386;
  background: #eee8e6;
}

.card-kicker {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.72;
}

.card-title {
  margin: 5px 0 0;
  font-size: 1.55rem;
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.card-copy {
  max-width: 640px;
  margin: 24px 0 0;
  color: var(--muted);
}

.featured .card-copy {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.05rem;
}

.card-link {
  margin-top: auto;
  padding-top: 24px;
  font-weight: 770;
}

.featured .card-link {
  color: white;
}

.page-hero {
  padding-block: 92px 78px;
}

.breadcrumbs {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 0.84rem;
}

.breadcrumbs a:hover {
  color: var(--red);
}

.product-hero {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 34px;
  align-items: center;
}

.product-icon {
  width: 160px;
  border-radius: 38px;
  box-shadow: 0 24px 58px rgba(200, 0, 25, 0.18);
}

.page-title {
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 6.6rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.page-subtitle {
  margin: 13px 0 0;
  color: var(--red);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  font-weight: 750;
}

.meta-row {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 720;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature {
  min-height: 220px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
}

.feature-number {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 13px;
  color: var(--red);
  background: var(--red-soft);
  font-weight: 850;
}

.feature h3 {
  margin: 27px 0 8px;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.63fr;
  gap: 22px;
  align-items: start;
}

.shot {
  margin: 0;
}

.shot:first-child {
  grid-row: span 2;
}

.shot img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: white;
  box-shadow: 0 18px 52px rgba(52, 31, 39, 0.1);
}

.shot.phone img {
  width: min(100%, 340px);
  margin-inline: auto;
  border-radius: 28px;
}

.shot figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.83rem;
  text-align: center;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.info-card,
.notice {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: white;
}

.info-card h3,
.notice h3 {
  margin: 0 0 12px;
  font-size: 1.25rem;
}

.info-card p,
.notice p {
  margin: 0;
  color: var(--muted);
}

.notice {
  border-color: rgba(200, 0, 25, 0.15);
  background: var(--red-soft);
}

.document-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 760px);
  justify-content: center;
  gap: 70px;
  padding-block: 76px 120px;
}

.doc-nav {
  position: sticky;
  top: 100px;
  align-self: start;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.78);
}

.doc-nav strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.77rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.doc-nav a {
  display: block;
  padding: 7px 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.doc-nav a:hover {
  color: var(--red);
}

.document h1 {
  margin: 0 0 12px;
  font-size: clamp(2.4rem, 5vw, 4.7rem);
  line-height: 1.04;
  letter-spacing: -0.052em;
}

.document .updated {
  margin: 0 0 54px;
  color: var(--muted);
  font-size: 0.87rem;
}

.document h2 {
  margin: 58px 0 14px;
  padding-top: 12px;
  font-size: 1.5rem;
  line-height: 1.35;
  letter-spacing: -0.025em;
}

.document h3 {
  margin: 34px 0 8px;
  font-size: 1.08rem;
}

.document p,
.document li {
  color: #4f464a;
}

.document a {
  color: var(--red-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.document ul,
.document ol {
  padding-left: 1.3rem;
}

.document li + li {
  margin-top: 7px;
}

.contact-box {
  margin-top: 50px;
  padding: 28px;
  border-radius: 22px;
  color: white;
  background: var(--ink);
}

.contact-box a {
  color: white;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 34px;
  background: rgba(248, 242, 241, 0.5);
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-links a:hover {
  color: var(--red);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

@media (max-width: 920px) {
  .nav-links a:not(.language-link) { display: none; }
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-block: 70px 90px;
  }
  .hero-orbit { min-height: 380px; }
  .app-card,
  .app-card.featured { grid-column: span 6; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .document-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .doc-nav { position: static; }
}

@media (max-width: 680px) {
  .nav-wrap,
  .container { width: min(calc(100% - 28px), var(--content)); }
  .nav-wrap { min-height: 64px; gap: 12px; }
  .brand { font-size: 0.88rem; }
  .brand-mark { width: 28px; }
  .language-link { padding: 7px 10px; }
  .display { font-size: clamp(3rem, 16vw, 5rem); }
  .hero-orbit { min-height: 330px; }
  .hero-collection {
    min-height: 320px;
    padding: 28px 14px;
    border-radius: 28px;
  }
  .collection-card {
    min-height: 185px;
    padding: 12px;
    border-radius: 19px;
  }
  .collection-card img,
  .collection-card .symbol-icon {
    width: 43px;
    height: 43px;
    border-radius: 12px;
    font-size: 0.74rem;
  }
  .collection-card small { display: none; }
  .hero-orbit::before { width: 320px; height: 320px; }
  .hero-orbit::after { width: 235px; height: 235px; }
  .orbit-pill { font-size: 0.7rem; }
  .orbit-pill.one { left: 0; }
  .orbit-pill.two { right: 0; }
  .section { padding-block: 72px; }
  .app-card,
  .app-card.featured { grid-column: 1 / -1; min-height: 300px; }
  .product-hero { grid-template-columns: 86px 1fr; gap: 18px; }
  .product-icon { width: 86px; border-radius: 22px; }
  .page-title { font-size: clamp(2.6rem, 13vw, 4.5rem); }
  .feature-grid,
  .split { grid-template-columns: 1fr; }
  .screenshot-grid { grid-template-columns: 1fr; }
  .shot:first-child { grid-row: auto; }
  .shot.phone img { width: min(76vw, 320px); }
  .footer-row { align-items: flex-start; flex-direction: column; }
}