:root {
  color-scheme: dark;
  --bg: #07111b;
  --bg-deep: #040913;
  --panel: rgba(10, 19, 31, 0.78);
  --panel-strong: rgba(12, 24, 38, 0.94);
  --panel-soft: rgba(17, 31, 45, 0.7);
  --line: rgba(137, 188, 216, 0.14);
  --line-strong: rgba(137, 188, 216, 0.24);
  --text: #edf5fc;
  --muted: #95aabd;
  --blue: #59b7ff;
  --green: #52d1aa;
  --orange: #ff9966;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
  --display-font: "Avenir Next", "Helvetica Neue", sans-serif;
  --body-font: "Avenir Next", "Hiragino Sans", "Yu Gothic", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--body-font);
  background:
    radial-gradient(circle at 18% 16%, rgba(89, 183, 255, 0.14), transparent 18%),
    radial-gradient(circle at 80% 22%, rgba(82, 209, 170, 0.11), transparent 18%),
    radial-gradient(circle at 72% 82%, rgba(255, 153, 102, 0.1), transparent 20%),
    linear-gradient(180deg, #09131f 0%, #07111b 42%, #050c15 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(151, 194, 220, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(151, 194, 220, 0.03) 1px, transparent 1px);
  background-size: 38px 38px;
  pointer-events: none;
}

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

a {
  color: inherit;
}

.cool-theme .ambient {
  position: fixed;
  border-radius: 999px;
  filter: blur(16px);
  pointer-events: none;
  opacity: 0.8;
}

.ambient-a {
  top: 84px;
  left: -88px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(89, 183, 255, 0.22), transparent 68%);
}

.ambient-b {
  top: 210px;
  right: -96px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(82, 209, 170, 0.16), transparent 70%);
}

.ambient-c {
  bottom: 30px;
  left: 44%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(255, 153, 102, 0.12), transparent 68%);
}

.shell {
  position: relative;
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 26px 0 18px;
}

.nav-side {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand-mark {
  width: 56px;
  height: 56px;
}

.brand-copy strong {
  display: block;
  font-size: 15px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-copy span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav-links a {
  padding: 11px 15px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  backdrop-filter: blur(12px);
}

.locale-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
}

.locale-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}

.locale-link.is-current {
  background: linear-gradient(90deg, rgba(89, 183, 255, 0.94), rgba(82, 209, 170, 0.9));
  color: #041118;
}

.hero,
.section {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(10, 21, 33, 0.78), rgba(8, 16, 26, 0.94));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  position: relative;
  overflow: hidden;
  margin-top: 10px;
  padding: 42px;
  border-radius: 38px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(89, 183, 255, 0.08), transparent 34%),
    linear-gradient(215deg, rgba(82, 209, 170, 0.07), transparent 40%),
    linear-gradient(25deg, rgba(255, 153, 102, 0.05), transparent 34%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: 28px;
  align-items: stretch;
}

.eyebrow,
.section-label {
  margin: 0;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.section-head h2 {
  margin: 18px 0 0;
  font-family: var(--display-font);
  font-weight: 700;
  letter-spacing: -0.05em;
}

.hero h1 {
  max-width: 720px;
  font-size: clamp(48px, 7vw, 90px);
  line-height: 0.92;
}

.hero-copy-compact h1 {
  max-width: 560px;
  font-size: clamp(34px, 4.8vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.lead,
.section-head p,
.studio-card p,
.product-card p,
.info-card p,
.footer p {
  color: var(--muted);
  line-height: 1.85;
}

.lead {
  max-width: 620px;
  margin: 24px 0 0;
  font-size: clamp(17px, 2vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}

.button {
  color: #041118;
  background: linear-gradient(90deg, var(--blue), var(--green), var(--orange));
  box-shadow: 0 20px 42px rgba(33, 119, 166, 0.26);
}

.button-secondary {
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.hero-symbol-card {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  border-radius: 30px;
  border: 1px solid rgba(131, 183, 211, 0.14);
  background: linear-gradient(180deg, rgba(15, 28, 42, 0.94), rgba(9, 18, 29, 0.92));
}

.symbol-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  border-radius: 26px;
  border: 1px solid rgba(131, 183, 211, 0.1);
  background:
    radial-gradient(circle at 50% 48%, rgba(89, 183, 255, 0.08), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
}

.symbol-mark {
  width: min(280px, 76%);
}

.app-hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-height: 300px;
  padding: 28px;
  border-radius: 26px;
  border: 1px solid rgba(131, 183, 211, 0.1);
  background:
    radial-gradient(circle at 50% 22%, rgba(89, 183, 255, 0.12), transparent 34%),
    radial-gradient(circle at 50% 78%, rgba(255, 153, 102, 0.08), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  text-align: center;
}

.app-hero-caption {
  max-width: 280px;
}

.app-hero-caption strong {
  display: block;
  font-size: 20px;
  line-height: 1.2;
}

.app-hero-caption p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.qr-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.qr-kicker {
  margin: 0;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-align: center;
  text-transform: uppercase;
}

.qr-card {
  padding: 14px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: #ffffff;
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.qr-card-compact {
  width: min(132px, 100%);
}

.qr-card-large {
  width: min(132px, 100%);
}

.status-card {
  width: min(172px, 100%);
  padding: 18px 16px;
  border-radius: 24px;
  border: 1px solid rgba(131, 183, 211, 0.18);
  background: linear-gradient(180deg, rgba(9, 20, 31, 0.98), rgba(8, 17, 27, 0.94));
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.24);
  text-align: center;
}

.status-card strong {
  display: block;
  margin: 0;
  font-size: 15px;
  line-height: 1.3;
}

.status-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.qr-code {
  width: 100%;
  margin: 0 auto;
  border-radius: 16px;
}

.qr-note {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.card-title {
  display: block;
  margin: 0 0 14px;
  font-size: 22px;
  line-height: 1.24;
}

.product-title-row span,
.product-meta span,
.footer-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.product-meta span,
.footer-links a {
  padding: 8px 11px;
}

.section {
  margin-top: 24px;
  padding: 34px;
  border-radius: 32px;
}

.section-head {
  max-width: 840px;
}

.section-head h2 {
  font-size: clamp(34px, 4.8vw, 56px);
  line-height: 0.98;
}

.studio-grid,
.product-grid,
.info-grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.studio-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-grid {
  display: flex;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  padding: 4px 4px 14px;
  margin-inline: -4px;
  scroll-padding-inline: 4px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.product-grid::-webkit-scrollbar {
  height: 10px;
}

.product-grid::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
}

.product-grid::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, rgba(89, 183, 255, 0.6), rgba(82, 209, 170, 0.6));
  border-radius: 999px;
}

.product-grid > .product-card {
  flex: 0 0 min(820px, calc(100vw - 72px));
  scroll-snap-align: start;
}

.product-grid > .future-card {
  flex-basis: min(360px, calc(100vw - 72px));
}

.info-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.studio-card,
.product-card,
.info-card {
  padding: 24px;
  border-radius: 28px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 29, 43, 0.92), rgba(10, 19, 30, 0.92));
}

.principle-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.studio-card strong,
.product-card strong,
.info-card strong {
  display: block;
  margin-top: 18px;
  font-size: 22px;
  line-height: 1.24;
}

.featured-product {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 0;
  overflow: hidden;
  padding: 0;
}

.product-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 30px;
  background:
    radial-gradient(circle at 50% 22%, rgba(89, 183, 255, 0.16), transparent 34%),
    radial-gradient(circle at 50% 78%, rgba(255, 153, 102, 0.12), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
}

.app-icon {
  width: 136px;
  height: 136px;
  border-radius: 34px;
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.3);
}

.app-wordmark {
  width: min(180px, 100%);
}

.product-copy {
  padding: 30px;
}

.product-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.product-title-row span {
  padding: 8px 12px;
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.product-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.product-links a,
.link-list a {
  padding: 11px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  font-size: 14px;
  text-decoration: none;
}

.future-card {
  background: linear-gradient(180deg, rgba(17, 34, 49, 0.92), rgba(11, 21, 33, 0.92));
}

.future-card strong {
  margin-top: 0;
}

.info-card:first-child strong,
.legal-card strong {
  margin-top: 0;
}

.info-card h3 {
  margin: 28px 0 0;
  font-size: 16px;
  letter-spacing: 0.02em;
}

.info-card h3:first-of-type {
  margin-top: 0;
}

.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.detail-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.detail-list li + li {
  margin-top: 8px;
}

.callout-card {
  background: linear-gradient(180deg, rgba(17, 34, 49, 0.94), rgba(10, 22, 33, 0.92));
}

.subpage-intro {
  max-width: 720px;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0 44px;
}

.footer p {
  margin: 0;
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 980px) {
  .hero-grid,
  .studio-grid,
  .featured-product,
  .info-grid {
    grid-template-columns: 1fr;
  }

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

  .nav-side {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }

  .hero,
  .section {
    padding: 28px 22px;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100vw - 20px, 1120px);
  }

  .hero,
  .section {
    padding: 22px 18px;
    border-radius: 26px;
  }

  .brand-mark {
    width: 48px;
    height: 48px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero-copy-compact h1 {
    font-size: 34px;
  }

  .section-head h2 {
    font-size: 32px;
  }

  .hero-actions,
  .product-links,
  .product-meta,
  .nav-links,
  .footer-links,
  .link-list {
    width: 100%;
    flex-direction: column;
  }

  .nav-side,
  .locale-switch {
    width: 100%;
  }

  .button,
  .button-secondary,
  .nav-links a,
  .product-links a,
  .footer-links a,
  .link-list a,
  .locale-link {
    width: 100%;
  }
}