:root {
  color-scheme: dark;
  --bg: #09050b;
  --bg-soft: #0f0a12;
  --panel: #160e1c;
  --panel-strong: #1c1024;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #f5f0f7;
  --muted: #b8adc1;
  --subtle: #7d6e89;
  --rose: #ff5c96;
  --lavender: #c27df8;
  --blush: #ffb3d4;
  --amber: #ffbe55;
  --danger: #ff756e;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
  --radius: 10px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(255, 92, 150, 0.07), transparent 36rem),
    var(--bg);
  color: var(--text);
  font-family:
    Inter, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo,
    sans-serif;
  line-height: 1.75;
  letter-spacing: 0;
}

.keep {
  display: inline-block;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

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

p,
h1,
h2,
h3 {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem max(1.25rem, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid transparent;
  background: rgba(9, 5, 11, 0.76);
  backdrop-filter: blur(18px);
  transition: border-color 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(9, 5, 11, 0.92);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 10rem;
}

.brand-mark {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border: 1px solid rgba(255, 92, 150, 0.45);
  border-radius: 8px;
  background: #150710;
  color: var(--rose);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 0.95rem;
  line-height: 1.1;
}

.brand small {
  color: var(--subtle);
  font-size: 0.72rem;
  line-height: 1.2;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.header-nav a:hover {
  color: var(--text);
}

.header-cta,
.button,
.floating-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  border-radius: 8px;
  font-weight: 700;
  line-height: 1.2;
}

.header-cta {
  padding: 0 1rem;
  background: linear-gradient(135deg, var(--rose), var(--lavender));
  color: #fff;
  font-size: 0.88rem;
}

.section-shell {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(19rem, 0.9fr);
  gap: 3rem;
  align-items: center;
  min-height: 88svh;
  padding: 5.5rem 0 4rem;
}

.hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 3rem;
  width: 18rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 92, 150, 0.5), transparent);
}

.eyebrow {
  color: var(--rose);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero h1 {
  margin-top: 0.95rem;
  font-size: 5rem;
  line-height: 0.98;
  font-weight: 900;
}

.tagline {
  margin-top: 1rem;
  color: var(--text);
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.5;
}

.hero-text {
  max-width: 43rem;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.button {
  min-width: 12rem;
  padding: 0.9rem 1.2rem;
  border: 1px solid var(--line-strong);
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--rose), var(--lavender));
  color: #fff;
  box-shadow: 0 16px 38px rgba(255, 92, 150, 0.22);
}

.button.ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.button.large {
  min-width: 16rem;
  min-height: 3.25rem;
  margin-top: 1.8rem;
}

.micro-note {
  margin-top: 0.85rem;
  color: var(--subtle);
  font-size: 0.88rem;
}

.hero-visual {
  margin: 0;
}

.device-stage {
  position: relative;
  display: grid;
  min-height: 30rem;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 92, 150, 0.13), transparent 34%),
    linear-gradient(315deg, rgba(194, 125, 248, 0.15), transparent 38%),
    #0a0510;
  box-shadow: var(--shadow);
}

.device-stage::before {
  content: "";
  position: absolute;
  inset: 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
}

.loop-lines {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent 0 20px,
      rgba(255, 255, 255, 0.025) 20px 21px
    );
  transform: skewY(-8deg);
}

.device {
  position: relative;
  width: min(18.5rem, 78vw);
  padding: 0.78rem 0.78rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.1), transparent 22%),
    linear-gradient(315deg, rgba(0, 0, 0, 0.4), transparent 45%),
    #180e22;
  box-shadow: 0 34px 80px rgba(0, 0, 0, 0.55);
  transform: rotate(-5deg);
}

.device-top {
  width: 4rem;
  height: 0.35rem;
  margin: 0 auto 0.65rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.18);
}

.device-screen {
  position: relative;
  height: 17.5rem;
  overflow: hidden;
  border: 1px solid rgba(255, 92, 150, 0.32);
  border-radius: 7px;
  background: #07020d;
}

.screen-frame {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: end;
  padding: 1rem;
  color: var(--text);
  animation: frameSwap 6s infinite;
}

.screen-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.7)),
    linear-gradient(135deg, rgba(255, 92, 150, 0.38), transparent 42%),
    linear-gradient(315deg, rgba(194, 125, 248, 0.45), transparent 46%);
}

.screen-frame span,
.screen-frame strong {
  position: relative;
  z-index: 1;
}

.screen-frame span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.78rem;
  font-weight: 800;
}

.screen-frame strong {
  font-size: 2.3rem;
  line-height: 1;
}

.frame-two {
  opacity: 0;
  animation-delay: 3s;
}

.frame-two::before {
  background:
    linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.72)),
    linear-gradient(145deg, rgba(255, 179, 212, 0.38), transparent 46%),
    linear-gradient(315deg, rgba(255, 92, 150, 0.42), transparent 48%);
}

.screen-glow {
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 38px rgba(255, 92, 150, 0.28);
}

.device-controls {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 0.85rem;
}

.device-controls span {
  width: 2.8rem;
  height: 0.7rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.16);
}

.status-panel {
  position: absolute;
  right: 1.1rem;
  bottom: 1.1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid rgba(194, 125, 248, 0.42);
  border-radius: 8px;
  background: rgba(9, 5, 11, 0.76);
  color: var(--lavender);
  font-size: 0.78rem;
  font-weight: 800;
}

.status-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--lavender);
  box-shadow: 0 0 18px var(--lavender);
}

figcaption {
  margin-top: 0.75rem;
  color: var(--subtle);
  font-size: 0.8rem;
}

.split-section,
.section-shell:not(.hero) {
  padding: 5rem 0;
}

.split-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 3rem;
}

.section-heading {
  max-width: 43rem;
}

.section-heading h2,
.final-cta h2 {
  margin-top: 0.55rem;
  font-size: 2.45rem;
  line-height: 1.25;
}

.section-heading p:not(.eyebrow),
.final-cta p {
  margin-top: 0.9rem;
  color: var(--muted);
}

.statement {
  display: grid;
  gap: 1.15rem;
  color: var(--text);
  font-size: 1.08rem;
}

.japan-note {
  display: grid;
  gap: 0.3rem;
  margin-top: 0.5rem;
  padding: 1.2rem;
  border-left: 3px solid var(--rose);
  background: rgba(255, 92, 150, 0.07);
}

.japan-note strong {
  font-size: 1.02rem;
  color: var(--text);
}

.japan-note p {
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.band {
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.028);
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.scene-card {
  position: relative;
  padding: 1.6rem 1.4rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 92, 150, 0.07), transparent 55%),
    var(--panel);
  overflow: hidden;
}

.scene-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--rose), transparent 60%);
  opacity: 0.55;
}

.scene-num {
  color: var(--rose);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  opacity: 0.85;
}

.scene-card h3 {
  margin-top: 0.7rem;
  font-size: 1.1rem;
  line-height: 1.5;
  color: var(--text);
}

.scene-card p {
  margin-top: 0.65rem;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.7;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.spec-item {
  min-height: 9rem;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(194, 125, 248, 0.07), transparent 48%),
    var(--panel);
}

.spec-item span {
  display: inline-flex;
  min-height: 1.85rem;
  align-items: center;
  padding: 0 0.55rem;
  border: 1px solid rgba(194, 125, 248, 0.28);
  border-radius: 6px;
  color: var(--lavender);
  font-size: 0.76rem;
  font-weight: 800;
}

.spec-item p {
  margin-top: 1rem;
  color: var(--text);
  font-weight: 700;
  font-size: 0.95rem;
}

.flow-list {
  display: grid;
  gap: 0.85rem;
  margin-top: 2rem;
}

.flow-list li {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(9, 5, 11, 0.42);
}

.flow-list li > span {
  display: grid;
  width: 3.25rem;
  height: 3.25rem;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--rose), var(--lavender));
  color: #fff;
  font-weight: 900;
}

.flow-list h3 {
  margin-top: 0.1rem;
  font-size: 1.06rem;
  line-height: 1.4;
}

.flow-list p {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.beta-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 1.4rem;
  margin-top: 2rem;
}

.beta-number {
  display: grid;
  min-height: 16rem;
  align-content: center;
  border: 1px solid rgba(194, 125, 248, 0.28);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(194, 125, 248, 0.14), transparent 46%),
    var(--panel);
  text-align: center;
}

.beta-number span {
  color: var(--lavender);
  font-size: 5rem;
  font-weight: 900;
  line-height: 1;
}

.beta-number p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.beta-copy {
  display: grid;
  gap: 1.4rem;
  align-content: center;
  color: var(--muted);
  font-size: 1.02rem;
}

.check-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.check-list li {
  position: relative;
  padding: 0.8rem 0.8rem 0.8rem 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-weight: 700;
  font-size: 0.94rem;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0.85rem;
  top: 1.18rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--rose);
}

.price-layout {
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  gap: 2rem;
  align-items: center;
}

.price-card {
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 92, 150, 0.1), transparent 45%),
    var(--panel-strong);
}

.price-label {
  color: var(--rose);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.price-range {
  margin-top: 0.3rem;
  color: var(--text);
  font-size: 2.25rem;
  font-weight: 900;
  line-height: 1.25;
}

.main-price {
  margin-top: 0.4rem;
  color: var(--text);
  font-weight: 800;
}

.main-price strong {
  color: var(--lavender);
  font-size: 1.4rem;
}

.price-card p:last-child {
  margin-top: 0.9rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.final-cta {
  text-align: center;
}

.final-cta h2 {
  max-width: 46rem;
  margin-inline: auto;
}

.final-cta > p {
  max-width: 44rem;
  margin: 0.9rem auto 0;
  color: var(--muted);
}

.floating-cta {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 30;
  min-height: 3rem;
  padding: 0 1.2rem;
  background: linear-gradient(135deg, var(--rose), var(--lavender));
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.8rem);
  transition: opacity 180ms ease, transform 180ms ease;
}

.floating-cta.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem max(1.25rem, calc((100vw - var(--max)) / 2)) 3rem;
}

.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--subtle);
  font-size: 0.82rem;
  margin-bottom: 2rem;
}

.footer-sub {
  color: var(--subtle);
}

.footer-notes {
  display: grid;
  gap: 0.6rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}

.footer-notes li {
  position: relative;
  padding-left: 1.3rem;
  color: var(--subtle);
  font-size: 0.82rem;
  line-height: 1.65;
}

.footer-notes li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--subtle);
  opacity: 0.5;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

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

@keyframes frameSwap {
  0%,
  42% {
    opacity: 1;
    transform: scale(1);
  }

  50%,
  92% {
    opacity: 0;
    transform: scale(1.04);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  .header-nav {
    display: none;
  }

  .hero,
  .split-section,
  .price-layout,
  .beta-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 2rem;
    min-height: auto;
    padding-top: 4rem;
  }

  .hero h1 {
    font-size: 4rem;
  }

  .scene-grid,
  .spec-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .site-header {
    padding: 0.75rem 1rem;
  }

  .brand {
    min-width: auto;
  }

  .brand small {
    display: none;
  }

  .header-cta {
    min-height: 2.45rem;
    padding: 0 0.75rem;
    font-size: 0.8rem;
  }

  .section-shell {
    width: min(100% - 1.25rem, var(--max));
  }

  .hero {
    padding: 1.6rem 0 0;
  }

  .hero h1 {
    margin-top: 0.7rem;
    font-size: 2.75rem;
  }

  .tagline {
    margin-top: 0.65rem;
    font-size: 1.2rem;
  }

  .hero-text,
  .statement,
  .beta-copy {
    font-size: 0.95rem;
  }

  .hero-text {
    margin-top: 0.9rem;
  }

  .hero-actions {
    margin-top: 1.25rem;
    display: grid;
  }

  .button {
    width: 100%;
  }

  .hero-actions .button.ghost {
    display: none;
  }

  .micro-note {
    margin-top: 0.6rem;
    font-size: 0.82rem;
  }

  .device-stage {
    min-height: 15rem;
  }

  .device {
    width: min(13.5rem, 70vw);
  }

  .device-screen {
    height: 10rem;
  }

  .screen-frame strong {
    font-size: 1.65rem;
  }

  .status-panel {
    right: 0.75rem;
    bottom: 0.75rem;
  }

  .section-shell:not(.hero),
  .split-section {
    padding: 3.5rem 0;
  }

  #what.split-section {
    padding-top: 0.5rem;
  }

  .section-heading h2,
  .final-cta h2 {
    font-size: 1.85rem;
  }

  .scene-grid,
  .spec-grid,
  .check-list {
    grid-template-columns: 1fr;
  }

  .flow-list li {
    grid-template-columns: 2.7rem 1fr;
    padding: 0.85rem;
  }

  .flow-list li > span {
    width: 2.7rem;
    height: 2.7rem;
  }

  .price-range {
    font-size: 1.7rem;
  }

  .footer-main {
    flex-direction: column;
    gap: 0.25rem;
  }

  .floating-cta {
    right: 0.65rem;
    bottom: 0.65rem;
    left: 0.65rem;
  }
}