:root {
  --paper: #f2efe7;
  --paper-light: #faf8f2;
  --ink: #171817;
  --muted: #696a66;
  --line: rgba(23, 24, 23, 0.18);
  --soft-line: rgba(23, 24, 23, 0.1);
  --vermilion: #bf3f32;
  --vermilion-dark: #923026;
  --max: 1240px;
  --serif: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif", Georgia, serif;
  --sans: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

::selection {
  color: var(--paper-light);
  background: var(--vermilion);
}

:focus-visible {
  outline: 2px solid var(--vermilion);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  color: #fff;
  background: var(--ink);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(var(--max), calc(100% - 3rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  border-bottom: 1px solid var(--soft-line);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 5.75rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  flex: 0 0 auto;
}

.seal {
  width: 2.65rem;
  height: 2.65rem;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--vermilion);
  font-family: var(--serif);
  font-size: 1.25rem;
  line-height: 1;
}

.brand-copy {
  display: grid;
  line-height: 1.1;
}

.brand-copy strong {
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.brand-copy small {
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.desktop-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.desktop-nav a {
  padding-block: 0.5rem;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 160ms ease;
}

.desktop-nav a:hover,
.desktop-nav a[aria-current="page"] {
  color: var(--ink);
}

.header-contact {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.7rem 0 0.65rem;
  border-bottom: 1px solid var(--ink);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.menu-button {
  width: 2.8rem;
  height: 2.8rem;
  margin-left: auto;
  display: none;
  place-items: center;
  padding: 0;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
}

.menu-icon,
.menu-icon::before,
.menu-icon::after {
  width: 1.1rem;
  height: 1px;
  display: block;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-icon {
  position: relative;
}

.menu-icon::before,
.menu-icon::after {
  position: absolute;
  left: 0;
  content: "";
}

.menu-icon::before {
  top: -0.35rem;
}

.menu-icon::after {
  top: 0.35rem;
}

.menu-button[aria-expanded="true"] .menu-icon {
  background: transparent;
}

.menu-button[aria-expanded="true"] .menu-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-button[aria-expanded="true"] .menu-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.mobile-nav {
  display: none;
}

.eyebrow {
  margin: 0 0 1.5rem;
  color: var(--vermilion);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.display {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.8rem, 8.6vw, 8.4rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.92;
}

.display em {
  color: var(--vermilion);
  font-style: normal;
}

.section-heading {
  max-width: 740px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.6rem, 5.4vw, 5rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1;
}

.section-intro {
  max-width: 660px;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero {
  min-height: calc(100svh - 5.75rem);
  display: grid;
  align-items: center;
  padding-block: clamp(5rem, 10vw, 9rem);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 9rem;
  gap: clamp(3rem, 7vw, 8rem);
  align-items: stretch;
}

.hero-copy {
  max-width: 1040px;
}

.hero-lead {
  max-width: 660px;
  margin: 2.5rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.75rem;
  margin-top: 2.75rem;
}

.button {
  min-height: 3.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0 1.35rem;
  color: #fff;
  background: var(--ink);
  border: 1px solid var(--ink);
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.button:hover {
  color: #fff;
  background: var(--vermilion);
  border-color: var(--vermilion);
  transform: translateY(-2px);
}

.button-light {
  color: var(--ink);
  background: var(--paper-light);
  border-color: var(--paper-light);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid currentColor;
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.arrow {
  font-size: 1.05rem;
  transition: transform 180ms ease;
}

.button:hover .arrow,
.text-link:hover .arrow {
  transform: translate(0.2rem, -0.15rem);
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 3.25rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-meta::before {
  width: 2.5rem;
  height: 1px;
  flex: 0 0 auto;
  background: var(--vermilion);
  content: "";
}

.hero-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.25rem;
  border-left: 1px solid var(--line);
}

.hero-kanji {
  font-family: var(--serif);
  font-size: 1.2rem;
  letter-spacing: 0.28em;
  line-height: 1;
  writing-mode: vertical-rl;
}

.hero-mark small {
  color: var(--muted);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}

.principle {
  padding-block: clamp(5rem, 9vw, 8.5rem);
  color: var(--paper-light);
  background: var(--ink);
}

.principle-grid {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: clamp(3rem, 8vw, 9rem);
  align-items: start;
}

.principle-symbol {
  color: var(--vermilion);
  font-family: var(--serif);
  font-size: clamp(5rem, 14vw, 11rem);
  line-height: 0.8;
}

.principle blockquote {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.principle p {
  max-width: 620px;
  margin: 2rem 0 0;
  color: rgba(250, 248, 242, 0.66);
}

.section {
  padding-block: clamp(5.5rem, 10vw, 10rem);
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.55fr);
  gap: 4rem;
  align-items: end;
  margin-bottom: clamp(3.5rem, 7vw, 6rem);
}

.section-note {
  margin: 0;
  color: var(--muted);
}

.services-list {
  border-top: 1px solid var(--line);
}

.service {
  display: grid;
  grid-template-columns: 5rem minmax(220px, 0.7fr) 1.25fr;
  gap: clamp(1.5rem, 5vw, 6rem);
  padding-block: 2.75rem;
  border-bottom: 1px solid var(--line);
}

.service-number {
  color: var(--vermilion);
  font-family: var(--serif);
  font-size: 1.05rem;
}

.service h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  line-height: 1.1;
}

.service-copy p {
  max-width: 660px;
  margin: 0;
  color: var(--muted);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.15rem 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 4rem;
  background: var(--line);
  border: 1px solid var(--line);
}

.process-step {
  min-height: 285px;
  padding: 2rem;
  background: var(--paper);
}

.process-step span {
  color: var(--vermilion);
  font-family: var(--serif);
}

.process-step h3 {
  margin: 4.5rem 0 1rem;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 400;
}

.process-step p {
  margin: 0;
  color: var(--muted);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: clamp(3rem, 9vw, 10rem);
  align-items: start;
}

.about-label {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.about-label::before {
  width: 2.5rem;
  height: 1px;
  background: var(--vermilion);
  content: "";
}

.about h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 4.9rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.04;
}

.about-copy {
  max-width: 680px;
  margin-top: 2rem;
  color: var(--muted);
  font-size: 1.06rem;
}

.about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 3rem;
  background: var(--line);
  border: 1px solid var(--line);
}

.about-facts div {
  padding: 1.2rem;
  background: var(--paper);
}

.about-facts dt {
  color: var(--muted);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.about-facts dd {
  margin: 0.4rem 0 0;
  font-size: 0.95rem;
  font-weight: 600;
}

.contact-cta {
  padding-block: clamp(5.5rem, 11vw, 10rem);
  color: var(--paper-light);
  background: var(--vermilion);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: end;
}

.contact-cta h2 {
  max-width: 820px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 6.5rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.contact-side p {
  margin: 0 0 1.75rem;
  color: rgba(250, 248, 242, 0.78);
}

.contact-mail {
  display: inline-block;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid rgba(250, 248, 242, 0.75);
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.site-footer {
  color: rgba(250, 248, 242, 0.72);
  background: var(--ink);
}

.footer-main {
  min-height: 13rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-brand p {
  margin: 0;
  color: var(--paper-light);
  font-family: var(--serif);
  font-size: 1.5rem;
}

.footer-brand small {
  display: block;
  margin-top: 0.2rem;
  color: rgba(250, 248, 242, 0.5);
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1.5rem;
}

.footer-links a {
  padding-block: 0.25rem;
  border-bottom: 1px solid transparent;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-links a:hover {
  color: #fff;
  border-color: currentColor;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1.4rem;
  border-top: 1px solid rgba(250, 248, 242, 0.13);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.subpage-hero {
  padding-block: clamp(5rem, 10vw, 9rem);
  border-bottom: 1px solid var(--line);
}

.subpage-hero h1 {
  max-width: 900px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.6rem, 8vw, 7.2rem);
  font-weight: 400;
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.subpage-hero p:not(.eyebrow) {
  max-width: 630px;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.contact-page,
.legal-page {
  padding-block: clamp(4.5rem, 9vw, 8rem);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.65fr 1.35fr;
  gap: clamp(3rem, 9vw, 10rem);
  align-items: start;
}

.contact-details h2,
.form-panel h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 400;
}

.contact-details p {
  color: var(--muted);
}

.contact-list {
  margin: 2.5rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.contact-list li {
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.contact-list small {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact-list a {
  overflow-wrap: anywhere;
}

.form-panel {
  padding: clamp(1.5rem, 4vw, 3rem);
  background: var(--paper-light);
  border: 1px solid var(--line);
}

.form-intro {
  margin: 1rem 0 2.5rem;
  color: var(--muted);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.field {
  display: grid;
  gap: 0.55rem;
}

.field-full {
  grid-column: 1 / -1;
}

.field label,
.field-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
}

.field input,
.field select {
  min-height: 3.25rem;
}

.field textarea {
  min-height: 10rem;
  padding-block: 0.8rem;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--vermilion);
  outline: 0;
}

.field-error {
  color: #9f2f26;
  font-size: 0.78rem;
}

.form-note {
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.form-actions {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.form-status {
  margin-bottom: 2rem;
  padding: 1rem 1.15rem;
  border-left: 3px solid var(--vermilion);
  background: rgba(191, 63, 50, 0.08);
}

.form-status.success {
  border-color: #49674f;
  background: rgba(73, 103, 79, 0.1);
}

.hp-field {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
}

.legal-grid {
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  gap: clamp(3rem, 9vw, 10rem);
  align-items: start;
}

.legal-index {
  position: sticky;
  top: 8rem;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.legal-index::before {
  width: 2rem;
  height: 1px;
  display: inline-block;
  margin-right: 0.75rem;
  vertical-align: middle;
  background: var(--vermilion);
  content: "";
}

.legal-content {
  max-width: 820px;
}

.legal-content h2 {
  margin: 3.5rem 0 1rem;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.2;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content h3 {
  margin: 2.25rem 0 0.65rem;
  font-size: 1rem;
}

.legal-content p,
.legal-content li {
  color: var(--muted);
}

.legal-content a {
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.legal-content address {
  font-style: normal;
}

.error-page {
  min-height: calc(100svh - 5.75rem);
  display: grid;
  place-items: center;
  padding-block: 5rem;
  text-align: center;
}

.error-page span {
  color: var(--vermilion);
  font-family: var(--serif);
  font-size: 7rem;
  line-height: 1;
}

.error-page h1 {
  margin: 1.5rem 0 1rem;
  font-family: var(--serif);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 400;
}

.error-page p {
  margin: 0 0 2rem;
  color: var(--muted);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 600ms ease, transform 600ms ease;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  .desktop-nav,
  .header-contact {
    display: none;
  }

  .menu-button {
    display: grid;
  }

  .mobile-nav {
    position: fixed;
    z-index: 90;
    inset: 5.75rem 0 0;
    padding: 2rem 1.5rem;
    background: var(--paper);
  }

  .mobile-nav.is-open {
    display: grid;
    align-content: start;
  }

  .mobile-nav a {
    padding-block: 1.2rem;
    border-bottom: 1px solid var(--line);
    font-family: var(--serif);
    font-size: 2rem;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) 4rem;
    gap: 2.5rem;
  }

  .section-head,
  .contact-grid {
    grid-template-columns: 1fr;
    align-items: start;
  }

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

  .service-copy {
    grid-column: 2;
  }

  .about-grid,
  .contact-layout,
  .legal-grid {
    grid-template-columns: 1fr;
  }

  .about-label {
    margin-bottom: 0;
  }

  .legal-index {
    position: static;
  }
}

@media (max-width: 680px) {
  .shell {
    width: min(var(--max), calc(100% - 2rem));
  }

  .header-inner {
    min-height: 4.75rem;
  }

  .brand-copy small {
    display: none;
  }

  .mobile-nav {
    inset-block-start: 4.75rem;
  }

  .hero {
    min-height: calc(100svh - 4.75rem);
    padding-block: 4rem;
  }

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

  .hero-mark {
    display: none;
  }

  .display {
    font-size: clamp(3.4rem, 17vw, 5.2rem);
  }

  .principle-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .principle-symbol {
    font-size: 5rem;
  }

  .service {
    grid-template-columns: 2.25rem minmax(0, 1fr);
    gap: 1.25rem;
    padding-block: 2.25rem;
  }

  .process-grid,
  .about-facts,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .process-step {
    min-height: 240px;
  }

  .field-full {
    grid-column: auto;
  }

  .footer-main,
  .footer-bottom {
    grid-template-columns: 1fr;
  }

  .footer-main {
    padding-block: 3.5rem;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .footer-bottom {
    display: grid;
    gap: 0.55rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}