:root {
  --black: #090909;
  --ink: #171717;
  --muted: #666;
  --line: rgba(0, 0, 0, 0.1);
  --soft: #f6f6f3;
  --white: #fff;
  --pink: #ff4fd8;
  --blue: #45a8ff;
  --max: 1160px;
  --radius: 28px;
  --header-h: 76px;
  font-family: Inter, "Helvetica Neue", Arial, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  color: var(--ink);
  background: var(--white);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--white);
  color: var(--ink);
  letter-spacing: 0.02em;
}

body.menu-open {
  overflow: hidden;
}

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

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

::selection {
  background: var(--black);
  color: var(--white);
}

.site-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.9), transparent 24%),
    linear-gradient(180deg, #fbfbf9 0%, #fff 42%, #f7f7f4 100%);
}

.orb {
  position: absolute;
  width: 34vw;
  height: 34vw;
  border-radius: 999px;
  filter: blur(70px);
  opacity: 0.28;
  transform: translate3d(0, 0, 0);
}

.orb-a {
  right: -8vw;
  top: 8vh;
  background: linear-gradient(135deg, var(--pink), var(--blue));
}

.orb-b {
  left: -12vw;
  bottom: -12vh;
  background: linear-gradient(135deg, var(--blue), var(--pink));
  opacity: 0.16;
}

.grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0,0,0,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(0,0,0,0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, transparent, black 18%, black 62%, transparent);
  opacity: 0.45;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 4vw, 56px);
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, backdrop-filter 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.82);
  border-color: rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(18px);
}

.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-weight: 800;
  line-height: 1;
}

.logo-mark {
  font-size: 24px;
  letter-spacing: -0.07em;
}

.logo-text {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav a {
  position: relative;
  color: rgba(0,0,0,0.72);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.22s ease;
}

.nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.7);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.menu-button span {
  width: 18px;
  height: 1px;
  background: var(--black);
  transition: transform 0.22s ease;
}

.menu-button.is-open span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-button.is-open span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
  padding: 112px 28px 40px;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(18px);
}

.mobile-nav a {
  display: block;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

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

.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
  padding-top: calc(var(--header-h) + 48px);
  padding-bottom: 88px;
}

.eyebrow {
  margin: 0 0 20px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.eyebrow.light {
  color: rgba(255,255,255,0.68);
}

.hero h1,
.section-head h2,
.product-section h2,
.contact h2 {
  margin: 0;
  letter-spacing: -0.07em;
  line-height: 0.96;
  color: var(--black);
}

.hero h1 {
  font-size: clamp(48px, 5.6vw, 80px);
  max-width: 720px;
}

.hero-title span {
  display: block;
  white-space: nowrap;
}

.hero-lead {
  margin: 32px 0 0;
  max-width: 680px;
  color: rgba(0, 0, 0, 0.72);
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 2;
  font-weight: 500;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.04em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-dark {
  color: var(--white);
  background: var(--black);
  box-shadow: 0 16px 32px rgba(0,0,0,0.16);
}

.btn-outline {
  border: 1px solid rgba(0,0,0,0.16);
  background: rgba(255,255,255,0.5);
}

.btn-light {
  color: var(--black);
  background: var(--white);
}

.hero-panel {
  display: grid;
  gap: 16px;
}

.panel-card {
  min-height: 420px;
  padding: 32px;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.64);
  backdrop-filter: blur(18px);
  box-shadow: 0 30px 80px rgba(0,0,0,0.08);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  position: relative;
}

.panel-card::before {
  content: "";
  position: absolute;
  inset: 24px 24px auto auto;
  width: 148px;
  height: 148px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255,79,216,0.88), rgba(69,168,255,0.88));
  filter: blur(12px);
  opacity: 0.92;
}

.panel-card::after {
  content: "9X";
  position: absolute;
  top: 70px;
  right: 38px;
  font-size: 66px;
  font-weight: 900;
  letter-spacing: -0.1em;
  color: rgba(255,255,255,0.78);
}

.panel-label,
.panel-text {
  margin: 0;
  color: var(--muted);
}

.panel-label {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.panel-title {
  margin: 14px 0 18px;
  font-size: clamp(38px, 4vw, 54px);
  line-height: 0.92;
  letter-spacing: -0.07em;
  font-weight: 900;
}

.panel-text {
  line-height: 1.9;
}

.mini-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mini-metrics div {
  padding: 24px;
  border-radius: 22px;
  background: var(--black);
  color: var(--white);
}

.mini-metrics span {
  display: block;
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -0.08em;
}

.mini-metrics p {
  margin: 10px 0 0;
  color: rgba(255,255,255,0.7);
  font-size: 12px;
  line-height: 1.7;
  font-weight: 700;
}

.section {
  padding-top: clamp(88px, 12vw, 160px);
  padding-bottom: clamp(88px, 12vw, 160px);
  border-top: 1px solid rgba(0,0,0,0.08);
}

.section-head {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 32px;
  align-items: end;
  margin-bottom: clamp(48px, 7vw, 88px);
}

.section-head h2,
.product-section h2,
.contact h2 {
  font-size: clamp(44px, 7vw, 92px);
}

.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 72px);
}

.large-text {
  margin: 0;
  font-size: clamp(28px, 4vw, 56px);
  line-height: 1.3;
  letter-spacing: -0.06em;
  font-weight: 850;
}

.body-text,
.business-card p,
.product-copy p,
.founder-copy p,
.contact p {
  margin: 0;
  color: rgba(0,0,0,0.68);
  font-size: 16px;
  line-height: 2;
  font-weight: 500;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.business-card {
  min-height: 420px;
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.74);
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 100%;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.business-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 70px rgba(0,0,0,0.08);
}

.card-number {
  display: inline-flex;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  background: var(--black);
  color: var(--white);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.business-card h3 {
  margin: clamp(64px, 6vw, 86px) 0 20px;
  min-height: 2.36em;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.18;
  letter-spacing: -0.06em;
}

.business-card p {
  min-height: 8em;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 30px;
  font-size: 14px;
  font-weight: 850;
}

.text-link::after {
  content: "→";
  display: inline-block;
  transition: transform 0.2s ease;
}

.text-link:hover::after {
  transform: translateX(4px);
}

.product-section {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding-top: clamp(80px, 10vw, 132px);
  padding-bottom: clamp(80px, 10vw, 132px);
  color: var(--white);
}

.product-inner {
  position: relative;
  z-index: 1;
  min-height: 520px;
  padding: clamp(34px, 6vw, 72px);
  border-radius: 42px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(30px, 6vw, 76px);
  align-items: center;
  color: #fff;
  background:
    radial-gradient(circle at 82% 18%, rgba(255,255,255,0.34), transparent 24%),
    radial-gradient(circle at 20% 88%, rgba(255,146,202,0.46), transparent 30%),
    linear-gradient(135deg, #3373ff 0%, #276aff 48%, #0754ec 100%);
  box-shadow: 0 34px 110px rgba(51,115,255,0.28);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.product-inner:hover {
  transform: translateY(-4px);
  box-shadow: 0 42px 130px rgba(51,115,255,0.34);
}

.product-inner::before {
  content: "";
  position: absolute;
  inset: auto -110px -150px auto;
  width: 420px;
  height: 420px;
  border-radius: 999px;
  background: rgba(255,146,202,0.64);
  opacity: 0.82;
}

.product-inner::after {
  content: "Yummy";
  position: absolute;
  right: clamp(18px, 4vw, 58px);
  bottom: clamp(-8px, 1vw, 14px);
  font-size: clamp(72px, 14vw, 178px);
  line-height: 0.8;
  font-weight: 700;
  letter-spacing: -0.08em;
  color: rgba(255,255,255,0.10);
  pointer-events: none;
}

.product-content {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 28px;
  justify-items: start;
}

.product-section h2 {
  color: var(--white);
  text-shadow: 0 12px 34px rgba(0,34,130,0.16);
}

.product-content p:not(.eyebrow) {
  margin: 0;
  max-width: 560px;
  color: rgba(255,255,255,0.88);
  font-size: 17px;
  line-height: 2;
  font-weight: 500;
}

.product-visual {
  position: relative;
  z-index: 2;
  min-height: 420px;
}

.product-showcase {
  position: relative;
  min-height: 420px;
}

.product-shot {
  position: absolute;
  overflow: hidden;
  border-radius: 30px;
  background: rgba(255,255,255,0.92);
  box-shadow: 0 26px 74px rgba(0,29,106,0.18);
}

.product-shot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-shot-main {
  top: 0;
  right: 0;
  width: min(360px, 74%);
  aspect-ratio: 1.08 / 1;
  padding: 14px;
}

.product-shot-main img {
  border-radius: 22px;
  object-position: center;
}

.product-shot-sub {
  left: 8%;
  bottom: 6px;
  width: min(300px, 62%);
  aspect-ratio: 0.92 / 1;
  padding: 10px;
}

.product-shot-sub img {
  border-radius: 18px;
  object-fit: contain;
  background: #f5f5f8;
}

.product-float-chip {
  position: absolute;
  right: 24px;
  bottom: 18px;
  z-index: 4;
  max-width: 250px;
  padding: 16px 18px;
  border-radius: 22px;
  background: rgba(255,255,255,0.92);
  color: #121212;
  box-shadow: 0 18px 44px rgba(0,29,106,0.16);
}

.product-float-chip span {
  display: block;
  margin-bottom: 6px;
  color: #3373ff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-float-chip strong {
  display: block;
  font-size: 18px;
  line-height: 1.55;
  letter-spacing: -0.02em;
  font-weight: 700;
}

@keyframes productFloat {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}

.founder-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.88fr) minmax(0, 1.12fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: center;
}

.founder-photo {
  margin: 0;
  border-radius: 36px;
  overflow: hidden;
  background: #dedbd7;
  box-shadow: 0 30px 90px rgba(0,0,0,0.14);
}

.founder-photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 50% 42%;
}

.founder-copy {
  padding: clamp(24px, 4vw, 44px) 0;
}

.founder-copy .role {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.founder-copy h3 {
  margin: 0 0 34px;
  font-size: clamp(44px, 7vw, 84px);
  line-height: 1;
  letter-spacing: -0.08em;
}

.founder-copy p + p {
  margin-top: 20px;
}

.company-table {
  border-top: 1px solid var(--line);
}

.company-table dl {
  margin: 0;
}

.company-table div {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.company-table dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.company-table dd {
  margin: 0;
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 700;
  line-height: 1.7;
}

.contact {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
  padding-top: clamp(88px, 12vw, 152px);
  padding-bottom: clamp(88px, 12vw, 152px);
}

.contact-card {
  padding: clamp(30px, 7vw, 84px);
  border-radius: 36px;
  border: 1px solid rgba(0,0,0,0.1);
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 30px 90px rgba(0,0,0,0.08);
  position: relative;
  overflow: hidden;
}

.contact-card::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255,79,216,0.54), rgba(69,168,255,0.54));
  filter: blur(30px);
  opacity: 0.7;
}

.contact-card > * {
  position: relative;
  z-index: 1;
}

.contact p {
  max-width: 720px;
  margin-top: 28px;
}

.mail-link {
  display: inline-flex;
  margin-top: 34px;
  font-size: clamp(28px, 5vw, 64px);
  line-height: 1;
  letter-spacing: -0.06em;
  font-weight: 900;
  border-bottom: 2px solid currentColor;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
  padding: 36px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.site-footer p {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.72s ease, transform 0.72s ease;
  transition-delay: var(--delay, 0ms);
}

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


/* Typography tuning: keep the same layout, but avoid overly crushed bold Japanese text. */
.logo { font-weight: 700; }
.nav { font-weight: 600; }
.mobile-nav a { font-weight: 700; }
.eyebrow { font-weight: 700; }
.hero h1,
.section-head h2,
.product-section h2,
.contact h2 {
  font-weight: 700;
  letter-spacing: -0.045em;
}
.btn { font-weight: 700; }
.panel-card::after { font-weight: 700; }
.panel-label { font-weight: 700; }
.panel-title { font-weight: 700; letter-spacing: -0.05em; }
.mini-metrics span { font-weight: 700; letter-spacing: -0.055em; }
.mini-metrics p { font-weight: 600; }
.large-text { font-weight: 700; letter-spacing: -0.04em; }
.card-number { font-weight: 700; }
.business-card h3 { font-weight: 700; letter-spacing: -0.04em; }
.text-link { font-weight: 700; }
.founder-copy .role { font-weight: 700; }
.founder-copy h3 { font-weight: 700; letter-spacing: -0.055em; }
.company-table dt { font-weight: 700; }
.company-table dd { font-weight: 600; }
.mail-link { font-weight: 700; letter-spacing: -0.04em; }
.site-footer { font-weight: 600; }

@media (max-width: 920px) {
  :root {
    --header-h: 68px;
  }

  .nav {
    display: none;
  }

  .menu-button {
    display: inline-flex;
  }

  .mobile-nav.is-open {
    display: block;
  }

  .hero,
  .section-head,
  .two-column,
  .business-grid,
  .founder-layout,
  .company-table div {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-h) + 72px);
  }

  .hero-panel {
    max-width: 560px;
  }

  .product-inner {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .product-visual {
    min-height: 440px;
  }

  .product-showcase {
    min-height: 440px;
  }

  .product-shot-main {
    width: min(340px, 76%);
  }

  .product-shot-sub {
    width: min(270px, 60%);
    left: 10%;
  }

  .panel-card {
    min-height: 340px;
  }

  .section-head {
    gap: 10px;
  }

  .business-card {
    min-height: 330px;
  }

  .business-card h3 {
    margin-top: 48px;
    min-height: 0;
  }

  .business-card p {
    min-height: 0;
  }

  .company-table div {
    gap: 8px;
  }
}

@media (max-width: 560px) {
  .section-pad,
  .product-section,
  .contact,
  .site-footer {
    width: min(calc(100% - 28px), var(--max));
  }

  .hero h1 {
    font-size: clamp(36px, 10vw, 58px);
  }

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

  .btn {
    width: 100%;
  }

  .panel-card,
  .business-card,
  .contact-card {
    border-radius: 24px;
  }

  .product-section {
    border-radius: 28px;
  }

  .product-inner {
    padding: 30px 22px;
    border-radius: 30px;
  }

  .product-visual {
    min-height: 390px;
  }

  .product-showcase {
    min-height: 390px;
  }

  .product-shot {
    border-radius: 22px;
  }

  .product-shot-main {
    width: min(290px, 84%);
    right: 0;
    padding: 10px;
  }

  .product-shot-main img {
    border-radius: 16px;
  }

  .product-shot-sub {
    width: min(235px, 72%);
    left: 0;
    bottom: 14px;
    padding: 8px;
  }

  .product-shot-sub img {
    border-radius: 14px;
  }

  .product-float-chip {
    right: 10px;
    bottom: 0;
    max-width: 210px;
    padding: 14px 16px;
    border-radius: 18px;
  }

  .product-float-chip strong {
    font-size: 16px;
    line-height: 1.45;
  }

  .founder-photo {
    border-radius: 28px;
  }

  .mail-link {
    font-size: clamp(24px, 8vw, 38px);
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }

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