:root {
  --color-ink: #14161C;
  --color-sub: #5B5F6B;
  --color-accent: #4F46E5;
  --color-accent-light: #8C86FF;
  --color-accent-cyan: #22D3EE;
  --color-accent-soft: #EEF0FF;
  --color-surface: #F5F6FB;
  --color-border: #E4E6EF;
  --color-dark: #14161C;
  --color-dark-card: #1E2029;
  --color-dark-sub: #9A9CAD;
  --color-white: #FFFFFF;
  --color-hero-bg: #FAFAFF;

  --font-display: 'Noto Sans JP', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-card: 16px;
  --radius-pill: 100px;
  --radius-hero-img: 24px;

  --shadow-hero-img: 0 30px 60px -20px rgba(79, 70, 229, 0.25);
  --shadow-contact-form: 0 20px 40px -20px rgba(20, 22, 28, 0.15);

  --section-padding-x: 64px;
  --section-padding-y: 100px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-display);
  color: var(--color-ink);
  background: var(--color-white);
}

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

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

::selection {
  background: rgba(79, 70, 229, 0.2);
}

/* ===== Nav ===== */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px var(--section-padding-x);
  border-bottom: 1px solid var(--color-border);
}

.nav__logo {
  display: flex;
  align-items: center;
}

.nav__logo img {
  height: 32px;
  width: auto;
  display: block;
}

.nav__links {
  display: flex;
  gap: 40px;
  align-items: center;
}

.nav__link {
  font-size: 14px;
  font-weight: 500;
}

.btn {
  display: inline-block;
  border-radius: var(--radius-pill);
  font-weight: 700;
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
  opacity: 0.92;
}

.btn:active {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 14px;
  padding: 11px 24px;
}

.btn--dark {
  background: var(--color-ink);
  color: var(--color-white);
  font-size: 15px;
  padding: 16px 32px;
}

.link--underline {
  font-size: 15px;
  font-weight: 700;
  padding: 16px 8px;
  border-bottom: 2px solid var(--color-ink);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  padding: 96px var(--section-padding-x) 100px;
  align-items: center;
  background: var(--color-hero-bg);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: -20%;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(30px);
}

.hero__blob--1 {
  width: 560px;
  height: 560px;
  left: -80px;
  top: -100px;
  background: radial-gradient(circle, var(--color-accent), transparent 70%);
  opacity: 0.55;
  animation: bgDrift1 8s ease-in-out infinite;
}

.hero__blob--2 {
  width: 500px;
  height: 500px;
  right: -60px;
  top: 20px;
  background: radial-gradient(circle, var(--color-accent-light), transparent 70%);
  opacity: 0.5;
  animation: bgDrift2 10s ease-in-out infinite;
}

.hero__blob--3 {
  width: 440px;
  height: 440px;
  left: 40%;
  bottom: -140px;
  background: radial-gradient(circle, var(--color-accent-cyan), transparent 70%);
  opacity: 0.4;
  animation: bgDrift3 9s ease-in-out infinite;
}

@keyframes bgDrift1 {
  0%, 100% { transform: translate(-5%, -5%) scale(1); }
  50% { transform: translate(6%, 4%) scale(1.15); }
}

@keyframes bgDrift2 {
  0%, 100% { transform: translate(4%, 6%) scale(1.1); }
  50% { transform: translate(-6%, -4%) scale(1); }
}

@keyframes bgDrift3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-4%, 5%) scale(1.08); }
}

@media (prefers-reduced-motion: reduce) {
  .hero__blob {
    animation: none !important;
  }
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.03em;
}

.hero__title {
  font-size: 56px;
  line-height: 1.3;
  font-weight: 900;
  margin: 0;
  letter-spacing: -0.01em;
}

.hero__body {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-sub);
  margin: 0;
  max-width: 460px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  margin-top: 8px;
}

.hero__media {
  position: relative;
  width: 100%;
  height: 420px;
  border-radius: var(--radius-hero-img);
  overflow: hidden;
  box-shadow: var(--shadow-hero-img);
  z-index: 1;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== Section headers ===== */
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 16px;
}

.section-title {
  font-size: 34px;
  font-weight: 900;
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}

/* ===== About ===== */
.about {
  padding: var(--section-padding-y) var(--section-padding-x);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  border-top: 1px solid var(--color-border);
}

.about .section-eyebrow {
  color: var(--color-accent);
}

.about__body {
  font-size: 15.5px;
  line-height: 2;
  color: var(--color-sub);
  margin: 0;
}

.about__body + .about__body {
  margin-top: 20px;
}

.about__table {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 40px 48px;
}

.about__table dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px 24px;
  font-size: 14.5px;
  margin: 0;
}

.about__table dt {
  color: #8B8FA0;
  font-weight: 500;
}

.about__table dd {
  margin: 0;
}

.about__camera {
  margin-top: 32px;
  border-radius: 14px;
  overflow: hidden;
}

.about__camera img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.about__map {
  margin-top: 16px;
  border-radius: 14px;
  overflow: hidden;
}

.about__map iframe {
  display: block;
  width: 100%;
  height: 240px;
  border: 0;
  filter: grayscale(100%);
  transition: filter 0.2s ease;
}

.about__map:hover iframe {
  filter: grayscale(0%);
}

/* ===== Services ===== */
.services {
  padding: var(--section-padding-y) var(--section-padding-x);
  background: var(--color-dark);
}

.services .section-eyebrow {
  color: var(--color-accent-light);
}

.services .section-title {
  color: var(--color-white);
  margin-bottom: 56px;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-dark-card);
  border-radius: var(--radius-card);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.service-card__index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
}

.service-card__title {
  color: var(--color-white);
  font-size: 20px;
  font-weight: 700;
  margin: 0;
}

.service-card__body {
  color: var(--color-dark-sub);
  font-size: 14.5px;
  line-height: 1.9;
  margin: 0;
}

/* ===== Group ===== */
.group {
  padding: var(--section-padding-y) var(--section-padding-x);
}

.group .section-eyebrow {
  color: var(--color-accent);
}

.group__lead {
  font-size: 15px;
  color: var(--color-sub);
  margin: 0 0 48px;
  max-width: 600px;
  line-height: 1.9;
}

.group__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.group-card {
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.group-card > a {
  width: fit-content;
}

.group-card__logo {
  height: 32px;
  width: fit-content;
  object-fit: contain;
  filter: grayscale(100%);
  transition: filter 0.2s ease;
}

.group-card:hover .group-card__logo {
  filter: grayscale(0%);
}

.group-card__name {
  font-weight: 700;
  font-size: 15px;
  color: inherit;
  text-decoration: none;
  width: fit-content;
}

.group-card__name:hover {
  text-decoration: underline;
}

.group-card__desc {
  font-size: 12.5px;
  color: #8B8FA0;
  line-height: 1.6;
}

/* ===== Gallery ===== */
.gallery {
  padding: 0 var(--section-padding-x) var(--section-padding-y);
  overflow: hidden;
}

.gallery__track {
  display: flex;
  gap: 16px;
  width: max-content;
  animation: gallery-scroll 24s linear infinite;
  animation-play-state: paused;
}

.gallery__track.is-scrolling {
  animation-play-state: running;
}

.gallery__item {
  flex: 0 0 auto;
  width: 260px;
  height: 180px;
  border-radius: 14px;
  overflow: hidden;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery__item:hover img {
  transform: scale(1.1);
}

@keyframes gallery-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .gallery__track {
    animation: none;
  }
}

/* ===== Contact ===== */
.contact {
  padding: var(--section-padding-y) var(--section-padding-x);
  background: var(--color-surface);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
}

.contact .section-eyebrow {
  color: var(--color-accent);
}

.contact__lead {
  font-size: 15px;
  color: var(--color-sub);
  line-height: 1.9;
  margin: 0;
}

.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-card);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--shadow-contact-form);
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form input,
.contact-form textarea {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 14px;
  font-family: inherit;
  color: var(--color-ink);
}

.contact-form textarea {
  resize: vertical;
}

.contact-form__hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form__submit {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 16px;
  font-size: 15px;
}

.contact-form__status {
  font-size: 13.5px;
  min-height: 1.2em;
}

.contact-form__status--error {
  color: #D1435B;
}

.contact-form__status--success {
  color: #2F9E6B;
}

.btn--outline {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-border);
  font-size: 15px;
  padding: 16px 32px;
}

/* ===== Confirm / Complete ===== */
.contact--single {
  grid-template-columns: 1fr;
  gap: 40px;
  max-width: 720px;
  margin: 0 auto;
  padding-top: calc(var(--section-padding-y) + 32px);
  padding-bottom: calc(var(--section-padding-y) + 32px);
}

.confirm-table__list {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px 24px;
  margin: 0 0 8px;
  font-size: 15px;
}

.confirm-table__list dt {
  color: #8B8FA0;
  font-weight: 500;
}

.confirm-table__list dd {
  margin: 0;
}

.confirm-table__message {
  white-space: pre-wrap;
  line-height: 1.9;
}

.confirm-actions {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.contact--complete {
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.complete-panel {
  text-align: center;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.complete-panel .section-title {
  margin-bottom: 0;
}

.complete-panel .contact__lead {
  margin: 0;
}

/* ===== Footer ===== */
.footer {
  padding: 32px var(--section-padding-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--color-border);
}

.footer__logo img {
  height: 22px;
  width: auto;
  display: block;
}

.footer__copyright {
  font-size: 13px;
  color: #8B8FA0;
}

/* ===== Responsive ===== */
@media (max-width: 1080px) {
  :root {
    --section-padding-x: 32px;
    --section-padding-y: 72px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 72px;
  }

  .hero__media {
    height: 320px;
  }

  .about,
  .contact {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

@media (max-width: 720px) {
  .nav {
    padding: 20px 20px;
  }

  .nav__links {
    gap: 16px;
  }

  .nav__link {
    display: none;
  }

  :root {
    --section-padding-x: 20px;
  }

  .hero__title {
    font-size: 36px;
  }

  .hero__eyebrow {
    font-size: 11px;
  }

  .services__grid,
  .group__grid {
    grid-template-columns: 1fr;
  }

  .gallery__item {
    width: 200px;
    height: 140px;
  }

  .contact-form__row {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 28px 20px;
  }

  .confirm-table__list {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .confirm-table__list dd {
    margin-bottom: 12px;
  }

  .confirm-actions {
    flex-direction: column;
  }

  .confirm-actions .btn {
    width: 100%;
    text-align: center;
  }

  .footer {
    padding: 24px 20px;
  }
}