:root {
  color: #1c2e2e;
  background: #f3f0e8;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", Meiryo,
    sans-serif;
  font-synthesis: none;
  --ink: #1c2e2e;
  --muted: #5d6d69;
  --green: #176d66;
  --green-dark: #10524e;
  --green-soft: #e4f0eb;
  --paper: #fffdf8;
  --line: #d8ded8;
  --warm: #a75228;
  --warm-soft: #f7e8d9;
  --shadow: 0 20px 55px rgb(40 62 58 / 10%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 280px;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 90% 4rem, rgb(194 220 207 / 46%), transparent 27rem),
    radial-gradient(circle at 8% 38rem, rgb(245 215 182 / 42%), transparent 25rem),
    #f3f0e8;
  line-height: 1.85;
}

a {
  color: var(--green);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--green-dark);
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgb(23 109 102 / 34%);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 16px;
  border-radius: 8px;
  color: #fff;
  background: var(--green-dark);
  transform: translateY(-150%);
}

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

.site-header {
  border-bottom: 1px solid rgb(199 208 202 / 76%);
  background: rgb(255 253 248 / 90%);
  backdrop-filter: blur(12px);
}

.site-header__inner {
  display: flex;
  width: min(1120px, calc(100% - 40px));
  min-height: 80px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

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

.brand img {
  display: block;
  width: 146px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 22px;
  font-size: 13px;
  font-weight: 800;
}

.site-nav a {
  color: #3f5551;
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--green);
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

.site-nav .nav-contact {
  padding: 9px 16px;
  border-radius: 999px;
  color: #fff;
  background: var(--green);
}

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

.hero,
.page-main,
.site-footer__inner {
  width: min(1120px, calc(100% - 40px));
  margin-right: auto;
  margin-left: auto;
}

.hero {
  display: grid;
  min-height: 590px;
  padding: clamp(64px, 10vw, 116px) 0;
  align-items: center;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  gap: clamp(42px, 8vw, 96px);
}

.hero__copy {
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 13px;
  color: var(--green);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(38px, 6.5vw, 72px);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.25;
}

.hero__lead {
  max-width: 44rem;
  margin: 25px 0 0;
  color: #485d59;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.9;
}

.hero__actions,
.cta__actions {
  display: flex;
  margin-top: 32px;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  padding: 12px 22px;
  border: 1px solid var(--green);
  border-radius: 999px;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--green);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  transition:
    background-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

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

.button--secondary {
  color: var(--green-dark);
  background: transparent;
}

.button--secondary:hover {
  color: #fff;
}

.hero__motif {
  display: grid;
  aspect-ratio: 1;
  position: relative;
  border: 1px solid rgb(23 109 102 / 18%);
  border-radius: 50% 50% 46% 54% / 46% 54% 46% 54%;
  place-items: center;
  background:
    linear-gradient(145deg, rgb(255 255 255 / 64%), rgb(223 238 231 / 90%));
  box-shadow: var(--shadow);
  transform: rotate(-4deg);
}

.hero__motif::before,
.hero__motif::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.hero__motif::before {
  width: 26%;
  height: 26%;
  top: 1%;
  right: 1%;
  background: rgb(215 135 77 / 74%);
}

.hero__motif::after {
  width: 16%;
  height: 16%;
  bottom: 7%;
  left: 2%;
  background: rgb(23 109 102 / 22%);
}

.hero__motif span {
  max-width: 70%;
  position: relative;
  z-index: 1;
  color: var(--green-dark);
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(25px, 3.4vw, 42px);
  font-weight: 700;
  line-height: 1.5;
  text-align: center;
  transform: rotate(4deg);
}

.page-main {
  padding: 0 0 100px;
}

.section {
  padding: clamp(64px, 9vw, 102px) 0;
  border-top: 1px solid rgb(188 200 193 / 72%);
}

.section-heading {
  display: grid;
  margin-bottom: 36px;
  grid-template-columns: minmax(0, 0.7fr) minmax(280px, 1.3fr);
  gap: 34px;
}

.section-heading h2,
.cta h2 {
  margin: 0;
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(27px, 4vw, 42px);
  line-height: 1.45;
}

.section-heading p {
  max-width: 46rem;
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.card-grid,
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card,
.scene-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgb(255 253 248 / 90%);
  box-shadow: 0 12px 34px rgb(40 62 58 / 6%);
}

.card {
  padding: 28px;
}

.card__number {
  display: grid;
  width: 38px;
  height: 38px;
  margin-bottom: 20px;
  border-radius: 50%;
  place-items: center;
  color: #fff;
  background: var(--green);
  font-family: Georgia, serif;
  font-size: 15px;
  font-weight: 700;
}

.card h3,
.scene-card h2,
.scene-card h3 {
  margin: 0;
  color: #223c39;
  font-size: 18px;
  line-height: 1.55;
}

.card p,
.scene-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.feature {
  display: grid;
  padding: clamp(28px, 5vw, 50px);
  border: 1px solid #d6d8cc;
  border-radius: 26px;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 0.75fr);
  gap: 42px;
  background:
    linear-gradient(135deg, rgb(255 253 248 / 96%), rgb(247 232 217 / 74%));
  box-shadow: var(--shadow);
}

.feature h2 {
  margin: 0;
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1.5;
}

.feature p {
  margin: 16px 0 0;
  color: #52635f;
  font-size: 14px;
}

.feature__notes {
  margin: 0;
  padding: 0;
  align-self: center;
  list-style: none;
}

.feature__notes li {
  padding: 13px 0 13px 27px;
  position: relative;
  border-bottom: 1px solid rgb(168 174 164 / 40%);
  color: #3b514d;
  font-size: 14px;
}

.feature__notes li:last-child {
  border-bottom: 0;
}

.feature__notes li::before {
  content: "";
  width: 9px;
  height: 9px;
  position: absolute;
  top: 23px;
  left: 2px;
  border-radius: 50%;
  background: var(--warm);
}

.notice {
  margin-top: 22px;
  padding: 17px 20px;
  border-left: 4px solid var(--warm);
  border-radius: 0 12px 12px 0;
  color: #5c5448;
  background: rgb(255 249 238 / 82%);
  font-size: 13px;
}

.notice p {
  margin: 0;
}

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

.scene-card {
  display: flex;
  min-height: 225px;
  padding: 25px;
  flex-direction: column;
}

.scene-card__label {
  margin: 0 0 10px;
  color: var(--warm);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scene-card a {
  margin-top: auto;
  padding-top: 20px;
  font-size: 13px;
  font-weight: 800;
}

.scene-card[aria-current="page"] {
  border-color: var(--green);
  background: var(--green-soft);
}

.scene-card[aria-current="page"] a {
  color: var(--green-dark);
  text-decoration: none;
}

.scene-grid--compact .scene-card {
  min-height: 170px;
}

.scene-grid--compact .scene-card h3 {
  font-size: 16px;
}

.related-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.related-links a {
  display: flex;
  min-height: 70px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 13px;
  align-items: center;
  color: #334b47;
  background: rgb(255 253 248 / 84%);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.55;
  text-decoration: none;
}

.related-links a:hover {
  border-color: var(--green);
  color: var(--green-dark);
  background: var(--green-soft);
}

.related-links a[aria-current="page"] {
  border-color: var(--green);
  color: var(--green-dark);
  background: var(--green-soft);
}

.cta {
  display: grid;
  padding: clamp(36px, 7vw, 72px);
  border-radius: 30px;
  color: #fff;
  background:
    radial-gradient(circle at 90% 10%, rgb(255 255 255 / 12%), transparent 16rem),
    var(--green-dark);
  box-shadow: var(--shadow);
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 45px;
}

.cta p {
  max-width: 45rem;
  margin: 18px 0 0;
  color: #d9e7e3;
  font-size: 14px;
}

.cta .button {
  border-color: #fff;
  color: var(--green-dark);
  background: #fff;
}

.cta .button:hover {
  color: #fff;
  background: transparent;
}

.cta__actions {
  align-content: center;
  justify-content: flex-end;
}

.index-hero {
  grid-template-columns: minmax(0, 1fr) minmax(250px, 0.55fr);
}

.index-hero .hero__motif span {
  font-size: clamp(23px, 3vw, 38px);
}

.site-footer {
  padding: 46px 0;
  color: #b6c2bf;
  background: #14201f;
}

.site-footer__inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 11px 24px;
  font-size: 12px;
}

.site-footer a {
  color: #e3eae8;
}

.site-footer p {
  margin: 0;
  color: #8fa09c;
  font-size: 10px;
  white-space: nowrap;
}

@media (max-width: 920px) {
  .hero {
    min-height: auto;
    grid-template-columns: minmax(0, 1fr) minmax(210px, 0.5fr);
    gap: 45px;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .related-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .site-header__inner {
    min-height: auto;
    padding: 15px 0;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .brand img {
    width: 128px;
  }

  .site-nav {
    width: 100%;
    padding-bottom: 4px;
    justify-content: flex-start;
    gap: 13px 20px;
    overflow-x: auto;
    white-space: nowrap;
  }

  .site-nav .nav-contact {
    padding: 6px 13px;
  }

  .hero,
  .index-hero {
    padding: 54px 0 64px;
    grid-template-columns: 1fr;
  }

  .hero__motif {
    width: min(310px, 82%);
    margin: 0 auto;
  }

  .section-heading,
  .feature,
  .cta {
    grid-template-columns: 1fr;
  }

  .section-heading {
    gap: 15px;
  }

  .feature,
  .cta {
    gap: 28px;
  }

  .cta__actions {
    margin-top: 0;
    justify-content: flex-start;
  }

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

@media (max-width: 520px) {
  .site-header__inner,
  .hero,
  .page-main,
  .site-footer__inner {
    width: min(100% - 28px, 1120px);
  }

  .hero h1 {
    font-size: clamp(34px, 11vw, 48px);
  }

  .card-grid,
  .scene-grid {
    grid-template-columns: 1fr;
  }

  .related-links {
    grid-template-columns: 1fr;
  }

  .card,
  .scene-card {
    padding: 23px;
  }

  .scene-card {
    min-height: 0;
  }

  .hero__actions,
  .cta__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .site-footer p {
    white-space: normal;
  }
}

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

  .button {
    transition: none;
  }
}