:root {
  --color-bg: #fbf7ec;
  --color-surface: #fffdf8;
  --color-surface-strong: #f4ead8;
  --color-green: #1f4d3a;
  --color-green-deep: #153527;
  --color-ink: #262520;
  --color-muted: #666156;
  --color-line: #ddd0bb;
  --color-brown: #9b7b4f;
  --shadow-soft: 0 18px 45px rgba(38, 37, 32, 0.10);
  --radius: 8px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-bg);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Meiryo", sans-serif;
  font-size: 17px;
  line-height: 1.8;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.section,
.section-band {
  padding: 84px 0;
}

.section-band {
  background: var(--color-surface);
}

.section-kicker {
  margin: 0 0 8px;
  color: var(--color-brown);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--color-ink);
  line-height: 1.35;
}

h1 {
  font-size: 4rem;
  max-width: 10.5em;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.16rem;
}

p {
  margin: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  color: #fff;
  background: var(--color-green);
  transform: translateY(-140%);
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 253, 248, 0.96);
  border-bottom: 1px solid rgba(221, 208, 187, 0.84);
  backdrop-filter: blur(12px);
}

.header-info {
  color: #fff;
  background: var(--color-green-deep);
  font-size: 0.88rem;
}

.header-info__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 36px;
}

.header-info a {
  font-weight: 700;
  text-decoration: none;
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 82px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
  color: var(--color-green-deep);
  text-decoration: none;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: #fff;
  background: var(--color-green);
  border-radius: 50%;
  font-size: 1.2rem;
  font-weight: 700;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.26);
}

.brand strong {
  display: block;
  font-size: 1.25rem;
  line-height: 1.25;
}

.brand small {
  display: block;
  color: var(--color-muted);
  font-size: 0.78rem;
  line-height: 1.3;
}

.global-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.global-nav a {
  padding: 10px 12px;
  color: var(--color-ink);
  border-radius: var(--radius);
  font-size: 0.94rem;
  font-weight: 700;
  text-decoration: none;
}

.global-nav a:hover,
.global-nav a:focus-visible {
  color: var(--color-green-deep);
  background: var(--color-surface-strong);
}

.global-nav .nav-contact {
  color: #fff;
  background: var(--color-green);
}

.global-nav .nav-contact:hover,
.global-nav .nav-contact:focus-visible {
  color: #fff;
  background: var(--color-green-deep);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
  cursor: pointer;
}

.menu-toggle__line {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--color-green-deep);
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - 118px);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 80px 0 72px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(31, 77, 58, 0.08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(31, 77, 58, 0.06) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  pointer-events: none;
}

.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.78fr);
  align-items: center;
  gap: 52px;
}

.hero__content {
  display: grid;
  gap: 22px;
}

.hero__lead {
  max-width: 620px;
  color: var(--color-muted);
  font-size: 1.08rem;
}

.hero__actions,
.contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button--primary {
  color: #fff;
  background: var(--color-green);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: var(--color-green-deep);
}

.button--secondary {
  color: var(--color-green-deep);
  background: var(--color-surface-strong);
  border-color: var(--color-line);
}

.button--ghost {
  color: var(--color-green-deep);
  background: rgba(255, 253, 248, 0.72);
  border-color: var(--color-line);
}

.hero-visual {
  position: relative;
  min-height: 420px;
}

.go-board {
  position: absolute;
  inset: 22px 12px 64px 0;
  border: 12px solid #9d7844;
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(56, 38, 18, 0.58) 2px, transparent 2px),
    linear-gradient(0deg, rgba(56, 38, 18, 0.58) 2px, transparent 2px),
    #d9b06d;
  background-size: 42px 42px;
  box-shadow: var(--shadow-soft);
  transform: rotate(-2deg);
}

.go-board::before {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(56, 38, 18, 0.3);
}

.stone {
  position: absolute;
  display: block;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  box-shadow: 0 8px 16px rgba(38, 37, 32, 0.22);
}

.stone--black {
  background: radial-gradient(circle at 35% 30%, #5c5c58 0 6%, #20201d 46%, #050505 100%);
}

.stone--white {
  background: radial-gradient(circle at 35% 30%, #fff 0 10%, #f3f0e8 58%, #d9d2c4 100%);
}

.stone--a {
  top: 18%;
  left: 18%;
}

.stone--b {
  top: 33%;
  left: 54%;
}

.stone--c {
  top: 54%;
  left: 35%;
}

.stone--d {
  top: 68%;
  left: 67%;
}

.stone--e {
  top: 78%;
  left: 18%;
}

.hero-card {
  position: absolute;
  right: 0;
  bottom: 12px;
  max-width: 290px;
  padding: 18px;
  background: rgba(255, 253, 248, 0.94);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.hero-card strong,
.hero-card span {
  display: block;
}

.hero-card strong {
  margin-bottom: 4px;
  color: var(--color-green-deep);
  font-size: 1.05rem;
}

.hero-card span {
  color: var(--color-muted);
  font-size: 0.92rem;
}

/* Sections */
.section-heading {
  display: grid;
  gap: 10px;
  margin-bottom: 32px;
}

.section-heading--center {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.section-heading p:not(.section-kicker),
.pricing__grid > div > p:not(.section-kicker),
.faq__grid > div > p {
  color: var(--color-muted);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(0, 1fr);
  gap: 48px;
}

.prose {
  display: grid;
  gap: 18px;
  color: var(--color-muted);
}

.notice-list,
.flow,
.card-grid,
.facility-grid {
  display: grid;
  gap: 18px;
}

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

.notice-item,
.flow-step,
.feature-card,
.program-card,
.facility-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.notice-item {
  padding: 22px;
}

.notice-item time {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--color-brown);
  font-weight: 700;
}

.notice-item p {
  margin-top: 8px;
  color: var(--color-muted);
}

.flow {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  counter-reset: flow;
}

.flow-step {
  position: relative;
  padding: 26px;
}

.flow-step span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  color: #fff;
  background: var(--color-green);
  border-radius: 50%;
  font-weight: 700;
}

.flow-step p,
.feature-card p,
.program-card p,
.facility-card p {
  margin-top: 10px;
  color: var(--color-muted);
}

.card-grid--four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card,
.program-card {
  padding: 24px;
}

.feature-card__icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  color: var(--color-green-deep);
  background: var(--color-surface-strong);
  border: 1px solid var(--color-line);
  border-radius: 50%;
  font-weight: 700;
}

.program-card {
  border-top: 5px solid var(--color-green);
}

/* Pricing */
.pricing {
  background:
    linear-gradient(90deg, rgba(31, 77, 58, 0.06), transparent 38%),
    var(--color-bg);
}

.pricing__grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.48fr) minmax(0, 1fr);
  align-items: start;
  gap: 42px;
}

.note {
  margin-top: 18px;
  padding: 14px 16px;
  color: var(--color-green-deep);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 5px solid var(--color-green);
  border-radius: var(--radius);
  font-weight: 700;
}

.table-wrap {
  overflow-x: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
}

th,
td {
  padding: 18px 20px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-line);
}

thead th {
  color: #fff;
  background: var(--color-green);
  font-size: 0.95rem;
}

tbody th {
  width: 28%;
  color: var(--color-green-deep);
  font-weight: 700;
}

tbody tr:last-child th,
tbody tr:last-child td {
  border-bottom: 0;
}

/* Facilities */
.facility-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.facility-card {
  overflow: hidden;
}

.facility-card h3,
.facility-card p {
  padding-inline: 18px;
}

.facility-card h3 {
  margin-top: 18px;
}

.facility-card p {
  padding-bottom: 22px;
}

.photo-placeholder {
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
  min-height: 170px;
  color: var(--color-green-deep);
  background:
    linear-gradient(135deg, rgba(31, 77, 58, 0.14), rgba(155, 123, 79, 0.14)),
    var(--color-surface-strong);
  border-bottom: 1px solid var(--color-line);
  font-weight: 700;
}

/* FAQ */
.faq__grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.42fr) minmax(0, 1fr);
  gap: 42px;
}

.accordion {
  display: grid;
  gap: 12px;
}

.accordion-item {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 18px 20px;
  color: var(--color-ink);
  background: transparent;
  border: 0;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.accordion-trigger span {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 1px solid var(--color-green);
  border-radius: 50%;
}

.accordion-trigger span::before,
.accordion-trigger span::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  background: var(--color-green);
  transform: translate(-50%, -50%);
}

.accordion-trigger span::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: opacity 160ms ease;
}

.accordion-trigger[aria-expanded="true"] span::after {
  opacity: 0;
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 220ms ease;
}

.accordion-panel p {
  padding: 0 20px 20px;
  color: var(--color-muted);
}

/* Access and contact */
.access__grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.45fr) minmax(0, 1fr);
  align-items: stretch;
  gap: 42px;
}

.info-list {
  display: grid;
  gap: 12px;
  margin: 24px 0;
}

.info-list div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
}

.info-list dt {
  color: var(--color-green-deep);
  font-weight: 700;
}

.info-list dd {
  margin: 0;
  color: var(--color-muted);
}

.map-placeholder {
  min-height: 360px;
  padding: 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.map-placeholder iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 330px;
  border: 0;
  border-radius: calc(var(--radius) - 2px);
}

.map-placeholder__inner {
  display: grid;
  place-items: center;
  align-content: center;
  min-height: 330px;
  color: var(--color-muted);
  background:
    linear-gradient(90deg, rgba(31, 77, 58, 0.1) 1px, transparent 1px),
    linear-gradient(0deg, rgba(31, 77, 58, 0.1) 1px, transparent 1px),
    var(--color-surface-strong);
  background-size: 32px 32px;
  border-radius: calc(var(--radius) - 2px);
  text-align: center;
}

.map-placeholder__inner strong {
  color: var(--color-green-deep);
  font-size: 1.2rem;
}

.contact__panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 34px;
  color: #fff;
  background: var(--color-green-deep);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.contact__panel h2,
.contact__panel .section-kicker {
  color: #fff;
}

.contact__panel p {
  color: rgba(255, 255, 255, 0.86);
}

.contact__panel .button--secondary {
  color: var(--color-green-deep);
  background: #fffdf8;
}

/* Footer */
.site-footer {
  color: rgba(255, 255, 255, 0.88);
  background: #171a16;
  padding: 46px 0 22px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
}

.brand--footer {
  color: #fff;
}

.brand--footer small {
  color: rgba(255, 255, 255, 0.7);
}

.site-footer p {
  margin-top: 18px;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, auto));
  gap: 8px 22px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: #fff;
  text-decoration: underline;
}

.footer__bottom {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

@media (max-width: 980px) {
  h1 {
    font-size: 3.25rem;
  }

  h2 {
    font-size: 2.2rem;
  }

  .header-info__inner {
    justify-content: center;
    flex-wrap: wrap;
    padding: 8px 0;
  }

  .hero {
    min-height: auto;
  }

  .hero__grid,
  .pricing__grid,
  .faq__grid,
  .access__grid,
  .split-layout {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 360px;
  }

  .notice-list,
  .flow,
  .card-grid--four,
  .facility-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 760px) {
  body {
    font-size: 16px;
  }

  .container {
    width: min(100% - 28px, var(--container));
  }

  .section,
  .section-band {
    padding: 62px 0;
  }

  .header-info {
    display: none;
  }

  .header-main {
    min-height: 70px;
  }

  .brand strong {
    font-size: 1.08rem;
  }

  .brand small {
    font-size: 0.72rem;
  }

  .menu-toggle {
    display: block;
    flex: 0 0 auto;
  }

  .global-nav {
    position: fixed;
    top: 70px;
    right: 14px;
    left: 14px;
    display: grid;
    gap: 6px;
    padding: 14px;
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }

  .global-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .global-nav a {
    padding: 13px 14px;
  }

  .hero {
    padding-top: 54px;
  }

  .hero__grid {
    gap: 34px;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.85rem;
  }

  .hero__actions,
  .contact__actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 315px;
  }

  .go-board {
    inset: 10px 0 48px;
    background-size: 34px 34px;
  }

  .stone {
    width: 34px;
    height: 34px;
  }

  .hero-card {
    right: 8px;
    left: 8px;
    max-width: none;
  }

  .notice-list,
  .flow,
  .card-grid--four,
  .facility-grid {
    grid-template-columns: 1fr;
  }

  table {
    min-width: 560px;
  }

  th,
  td {
    padding: 15px 16px;
  }

  .info-list div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .map-placeholder {
    min-height: 300px;
  }

  .map-placeholder iframe,
  .map-placeholder__inner {
    min-height: 270px;
  }

  .contact__panel {
    padding: 24px;
  }

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

  .footer-nav {
    grid-template-columns: 1fr;
  }
}

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