:root {
  color-scheme: light;
  --bg: #f5f5f7;
  --bg-strong: #ececf1;
  --surface: rgba(255, 255, 255, 0.84);
  --surface-strong: #ffffff;
  --surface-soft: #fafafc;
  --border: rgba(29, 29, 31, 0.08);
  --border-strong: rgba(29, 29, 31, 0.14);
  --text: #1d1d1f;
  --muted: #6e6e73;
  --blue: #0071e3;
  --blue-soft: #eef5ff;
  --green: #34c759;
  --orange: #ff9f0a;
  --red: #ff453a;
  --indigo: #5856d6;
  --shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans", "Noto Sans JP", "Apple SD Gothic Neo", "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top left, rgba(0, 113, 227, 0.08), transparent 28rem),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 44%, var(--bg-strong) 100%);
}

body.is-home {
  background:
    radial-gradient(circle at top center, rgba(55, 112, 255, 0.16), transparent 24rem),
    radial-gradient(circle at 15% 10%, rgba(92, 211, 183, 0.12), transparent 20rem),
    linear-gradient(180deg, #f8fbff 0%, #edf1f8 42%, #eef0f5 100%);
}

a {
  color: inherit;
}

.page-shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 52px;
}

.page-frame {
  display: grid;
  gap: 18px;
}

.home-frame {
  gap: 24px;
}

.topbar,
.hero,
.hero-note,
.grid-card,
.section-card,
.footer {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.topbar {
  position: sticky;
  top: 16px;
  z-index: 30;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 999px;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff 0%, #f1f3f6 100%);
  color: var(--text);
  font-size: 20px;
  font-weight: 700;
  border: 1px solid rgba(29, 29, 31, 0.06);
}

.brand-copy {
  display: grid;
  gap: 4px;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-title {
  margin: 0;
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.toolbar,
.language-switcher,
.nav-links,
.hero-actions,
.hero-strip,
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.chip-button,
.nav-link,
.cta-link {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--muted);
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease, color 180ms ease;
}

.chip-button,
.nav-link {
  padding: 9px 14px;
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
}

.chip-button:hover,
.chip-button[aria-pressed="true"],
.nav-link:hover,
.nav-link.active {
  color: var(--blue);
  border-color: rgba(0, 113, 227, 0.22);
  background: var(--blue-soft);
}

.hero {
  padding: 36px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(0, 113, 227, 0.08), transparent 22rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(250, 250, 252, 0.96));
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.72fr);
  gap: 20px;
}

.hero-copy,
.hero-note {
  display: grid;
  gap: 16px;
}

.hero-note {
  align-content: start;
  padding: 22px;
  border-radius: 28px;
  background: linear-gradient(180deg, #fcfdff 0%, #f6f8fb 100%);
}

.home-hero {
  position: relative;
  overflow: hidden;
  padding: 38px;
  border-radius: 38px;
  border: 1px solid rgba(109, 157, 255, 0.16);
  background:
    radial-gradient(circle at 18% 18%, rgba(88, 181, 255, 0.18), transparent 24rem),
    radial-gradient(circle at 82% 22%, rgba(109, 255, 219, 0.16), transparent 22rem),
    linear-gradient(180deg, #0d1324 0%, #101932 44%, #162247 100%);
  box-shadow:
    0 30px 80px rgba(10, 24, 58, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.08), transparent 28%),
    radial-gradient(circle at center, rgba(255, 255, 255, 0.04), transparent 38%);
}

.home-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(340px, 0.88fr);
  gap: 28px;
  align-items: center;
}

.home-hero-copy,
.home-hero-visual {
  display: grid;
  gap: 18px;
}

.home-eyebrow,
.home-title,
.home-summary,
.home-hero .hero-strip span,
.home-hero .note-title,
.home-hero .note-copy,
.hero-note-dark .note-copy,
.screen-copy h2,
.screen-copy p,
.screen-topline span,
.stat-value,
.stat-label {
  color: #f6f7fb;
}

.home-eyebrow {
  color: rgba(220, 228, 255, 0.78);
}

.home-title {
  margin: 0;
  font-size: clamp(44px, 7vw, 78px);
  line-height: 0.94;
  letter-spacing: -0.055em;
  max-width: 10.5em;
}

.home-summary {
  margin: 0;
  max-width: 40rem;
  color: rgba(232, 237, 248, 0.82);
  font-size: 19px;
  line-height: 1.86;
}

.home-hero .hero-strip span {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  color: rgba(240, 244, 255, 0.88);
}

.home-hero .cta-link.primary {
  background: linear-gradient(180deg, #5fa6ff 0%, #2f7bff 100%);
}

.home-hero .cta-link.secondary {
  color: #eef3ff;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 6px;
}

.stat-card {
  padding: 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
}

.stat-value {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.stat-label {
  margin: 6px 0 0;
  color: rgba(223, 230, 245, 0.74);
  font-size: 13px;
}

.mockup-stage {
  position: relative;
  min-height: 530px;
  display: grid;
  place-items: center;
  isolation: isolate;
  transform-style: preserve-3d;
  transform: perspective(1100px) rotateX(var(--tilt-y, 0deg)) rotateY(var(--tilt-x, 0deg));
  transition: transform 220ms ease;
}

.ambient-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(8px);
  opacity: 0.85;
  animation: floatOrb 9s ease-in-out infinite;
}

.orb-a {
  width: 240px;
  height: 240px;
  top: 28px;
  right: 12px;
  background: radial-gradient(circle, rgba(101, 197, 255, 0.42) 0%, rgba(101, 197, 255, 0) 72%);
}

.orb-b {
  width: 180px;
  height: 180px;
  bottom: 44px;
  left: 18px;
  background: radial-gradient(circle, rgba(100, 255, 206, 0.32) 0%, rgba(100, 255, 206, 0) 72%);
  animation-delay: -3s;
}

.orb-c {
  width: 150px;
  height: 150px;
  top: 140px;
  left: 80px;
  background: radial-gradient(circle, rgba(129, 144, 255, 0.24) 0%, rgba(129, 144, 255, 0) 72%);
  animation-delay: -5s;
}

.floating-sigil {
  position: absolute;
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: rgba(245, 247, 255, 0.92);
  font-size: 20px;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 12px 28px rgba(10, 20, 48, 0.28);
  backdrop-filter: blur(18px);
  animation: sigilDrift 8s ease-in-out infinite;
}

.sigil-a {
  top: 82px;
  left: 10px;
}

.sigil-b {
  top: 36px;
  right: 34px;
  animation-delay: -2s;
}

.sigil-c {
  bottom: 84px;
  right: 6px;
  animation-delay: -4s;
}

.device-shell {
  position: relative;
  width: min(100%, 360px);
  aspect-ratio: 0.52;
  padding: 14px;
  border-radius: 36px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.08)),
    linear-gradient(180deg, #1e2541 0%, #12172a 100%);
  box-shadow:
    0 28px 80px rgba(3, 12, 37, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.device-screen {
  position: relative;
  height: 100%;
  overflow: hidden;
  padding: 24px;
  border-radius: 26px;
  background:
    radial-gradient(circle at top center, rgba(123, 178, 255, 0.16), transparent 22rem),
    linear-gradient(180deg, rgba(10, 16, 31, 0.98), rgba(18, 28, 52, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 18px;
  align-content: start;
}

.device-screen::before {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  pointer-events: none;
}

.screen-topline {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.screen-badge,
.preview-route span,
.preview-pill-row span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.08);
  color: #f6f7fb;
  font-size: 12px;
}

.preview-route,
.preview-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.screen-copy {
  display: grid;
  gap: 10px;
  margin-top: 8px;
}

.screen-copy h2 {
  margin: 0;
  font-size: 34px;
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.screen-copy p {
  margin: 0;
  color: rgba(229, 236, 248, 0.78);
  font-size: 16px;
  line-height: 1.72;
}

.hero-note-dark {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
  border-color: rgba(255, 255, 255, 0.08);
}

.hero-note-dark .hero-strip span {
  background: rgba(255, 255, 255, 0.07);
}

.home-section {
  display: grid;
  gap: 20px;
}

.section-head {
  display: grid;
  gap: 10px;
  max-width: 48rem;
}

.home-section-title {
  margin: 0;
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1;
  letter-spacing: -0.04em;
}

.home-section-summary {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.showcase-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.82fr) minmax(0, 1.18fr);
  gap: 18px;
}

.feature-switcher,
.feature-panel,
.journey-step {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.feature-switcher {
  display: grid;
  gap: 10px;
  padding: 16px;
  border-radius: var(--radius-lg);
}

.feature-tab {
  appearance: none;
  width: 100%;
  text-align: left;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.feature-tab span,
.feature-tab small {
  display: block;
}

.feature-tab span {
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.feature-tab small {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.feature-tab.active,
.feature-tab:hover {
  transform: translateY(-1px);
  border-color: rgba(47, 123, 255, 0.18);
  background: linear-gradient(180deg, rgba(246, 250, 255, 0.98), rgba(238, 245, 255, 0.98));
  box-shadow: 0 18px 34px rgba(25, 53, 105, 0.08);
}

.feature-panel {
  display: grid;
  gap: 14px;
  padding: 24px;
  border-radius: var(--radius-lg);
  min-height: 360px;
}

.feature-panel h3,
.journey-step h3 {
  margin: 0;
  font-size: 32px;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.feature-body,
.journey-step p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.76;
}

.feature-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.feature-quote {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
}

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

.journey-step {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 24px;
  border-radius: var(--radius-lg);
}

.journey-index {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: #f1f5ff;
  color: var(--blue);
  font-weight: 700;
  font-size: 15px;
}

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

.reveal-on-scroll {
  opacity: 1;
  transform: translateY(0);
  transition: transform 280ms ease, box-shadow 280ms ease;
}

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

@keyframes floatOrb {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(0, -14px, 0) scale(1.06);
  }
}

@keyframes sigilDrift {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.hero-title {
  margin: 0;
  font-size: clamp(38px, 6vw, 58px);
  line-height: 1.03;
  letter-spacing: -0.04em;
}

.hero-summary,
.note-copy,
.footer p,
.grid-card p,
.section-card p,
.section-card li {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.72;
}

.hero-strip span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: #f4f5f8;
  border: 1px solid rgba(29, 29, 31, 0.06);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.cta-link {
  min-height: 46px;
  padding: 0 18px;
  font-size: 14px;
  font-weight: 600;
  justify-content: center;
}

.cta-link.primary {
  color: #ffffff;
  background: var(--blue);
  border-color: transparent;
}

.cta-link.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.92);
  border-color: var(--border-strong);
}

.cta-link:hover,
.chip-button:hover,
.nav-link:hover,
.grid-card:hover {
  transform: translateY(-1px);
}

.content-grid,
.legal-grid {
  display: grid;
  gap: 18px;
}

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

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

.grid-card,
.section-card,
.footer {
  padding: 26px;
  border-radius: var(--radius-lg);
}

.grid-card {
  display: grid;
  gap: 12px;
  min-height: 220px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.9);
}

.grid-card h2,
.section-card h2 {
  margin: 0;
  font-size: 24px;
  line-height: 1.24;
  letter-spacing: -0.02em;
}

.card-link,
.inline-link {
  color: var(--blue);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.card-link {
  margin-top: auto;
}

.section-card {
  display: grid;
  gap: 12px;
  background: rgba(255, 255, 255, 0.9);
}

.section-kicker {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-card ul {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
}

.inline-link {
  display: inline-flex;
  align-items: center;
}

.note-title {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.footer {
  display: grid;
  gap: 10px;
  background: rgba(255, 255, 255, 0.88);
}

.highlight-jade {
  border-top: 4px solid rgba(52, 199, 89, 0.82);
}

.highlight-gold {
  border-top: 4px solid rgba(255, 159, 10, 0.82);
}

.highlight-sapphire {
  border-top: 4px solid rgba(0, 113, 227, 0.82);
}

.highlight-crimson {
  border-top: 4px solid rgba(255, 69, 58, 0.82);
}

.empty-state {
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface-strong);
}

@media (max-width: 920px) {
  .topbar {
    position: static;
    border-radius: 28px;
  }

  .home-hero,
  .hero {
    padding: 26px;
  }

  .home-hero-grid,
  .hero-grid,
  .content-grid,
  .legal-grid,
  .showcase-grid,
  .journey-grid,
  .home-portal-grid {
    grid-template-columns: 1fr;
  }

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

  .mockup-stage {
    min-height: 460px;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100vw - 20px, 1120px);
    padding: 14px 0 36px;
  }

  .toolbar {
    width: 100%;
    display: grid;
    gap: 8px;
  }

  .language-switcher,
  .nav-links {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .language-switcher::-webkit-scrollbar,
  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .topbar,
  .home-hero,
  .hero,
  .hero-note,
  .grid-card,
  .section-card,
  .footer {
    border-radius: 22px;
  }

  .topbar,
  .grid-card,
  .section-card,
  .footer {
    padding: 18px;
  }

  .home-hero,
  .hero {
    padding: 24px;
  }

  .home-title,
  .hero-title {
    font-size: 34px;
  }

  .home-summary,
  .hero-summary,
  .note-copy,
  .footer p,
  .grid-card p,
  .section-card p,
  .section-card li {
    font-size: 15px;
    line-height: 1.66;
  }

  .home-section-title,
  .feature-panel h3,
  .screen-copy h2 {
    font-size: 28px;
  }

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

  .stat-card,
  .feature-switcher,
  .feature-panel,
  .journey-step {
    padding: 18px;
  }

  .mockup-stage {
    min-height: 400px;
  }

  .device-shell {
    width: min(100%, 300px);
  }

  .hero-actions {
    width: 100%;
  }

  .cta-link {
    width: 100%;
  }
}