:root {
  --green: #4e7f61;
  --light-green: #a8c5a2;
  --beige: #e7dfcf;
  --background: #f4f1ea;
  --ink: #333333;
  --muted: #6d716a;
  --line: rgba(78, 127, 97, 0.22);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--background);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", YuGothic, "Noto Sans JP", sans-serif;
  font-feature-settings: "palt";
  font-size: 17px;
  line-height: 1.75;
}
img { display: block; max-width: 100%; }
.container { width: min(100% - 48px, 1120px); margin: 0 auto; }
.site-header { padding: 25px 0; }
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.header-nav { display: flex; align-items: center; gap: 24px; }
.header-link {
  color: var(--green); font-family: Georgia, "Times New Roman", serif; font-size: 1rem;
  font-weight: 700; letter-spacing: 0.08em; text-decoration: none;
}
.header-link:hover, .header-link:focus-visible { text-decoration: underline; text-underline-offset: 5px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px; color: var(--ink);
  font-family: Georgia, "Times New Roman", serif; font-size: 1.4rem; font-weight: 700;
  letter-spacing: 0.015em; line-height: 1; text-decoration: none;
}
.brand img { width: 36px; height: 36px; object-fit: contain; }
.hero { min-height: 620px; padding: clamp(66px, 10vw, 132px) 0 clamp(82px, 11vw, 144px); overflow: hidden; }
.hero-layout { display: grid; grid-template-columns: minmax(0, 1fr) 370px; align-items: center; gap: clamp(32px, 8vw, 126px); }
.eyebrow, .section-label {
  margin: 0 0 18px; color: var(--green); font-family: Georgia, "Times New Roman", serif;
  font-size: 1.05rem; font-weight: 700; letter-spacing: 0.14em; line-height: 1.5; text-transform: uppercase;
}
h1, h2, p { margin-top: 0; }
h1, h2 { font-weight: 500; letter-spacing: 0.055em; line-height: 1.55; }
h1 { margin-bottom: 25px; font-size: clamp(2rem, 4.3vw, 3.65rem); }
.hero-description { max-width: 36rem; margin-bottom: 30px; color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.125rem); letter-spacing: 0.04em; }
.hero-mark { position: relative; display: grid; width: min(100%, 370px); aspect-ratio: 1; place-items: center; justify-self: end; }
.hero-mark::before { position: absolute; inset: 12%; border: 1px solid rgba(78, 127, 97, 0.24); border-radius: 50%; content: ""; }
.hero-mark img { position: relative; z-index: 1; width: 74%; height: auto; object-fit: contain; }
.mark-circle { position: absolute; display: block; border-radius: 50%; }
.mark-circle-one { top: 4%; right: 6%; width: 22px; height: 22px; background: var(--light-green); }
.mark-circle-two { bottom: 8%; left: 4%; width: 13px; height: 13px; background: var(--beige); box-shadow: 0 0 0 1px rgba(78, 127, 97, 0.2); }
.section { padding: clamp(78px, 10vw, 132px) 0; }
.about { border-top: 1px solid var(--line); }
.section-grid { display: grid; grid-template-columns: 1fr minmax(0, 2fr); gap: 48px; }
.section-content { max-width: 650px; }
h2 { margin-bottom: 30px; font-size: clamp(1.55rem, 3vw, 2.35rem); }
.section-content p { margin-bottom: 1.35em; color: var(--muted); font-size: 1rem; letter-spacing: 0.035em; }
.section-content p:last-child { margin-bottom: 0; }
.coming-soon { padding-top: 0; }
.coming-panel { display: grid; grid-template-columns: 1fr 1.04fr; gap: 48px; align-items: end; padding: clamp(46px, 7vw, 78px) clamp(30px, 6vw, 78px); background: var(--beige); }
.coming-panel .section-label { margin-bottom: 13px; }
.coming-panel h2 { margin-bottom: 0; }
.coming-panel > p { margin: 0; color: #565750; font-size: 1rem; letter-spacing: 0.035em; }
.site-footer { padding: 38px 0 31px; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); padding-top: 25px; color: var(--muted); font-size: 0.875rem; letter-spacing: 0.08em; }
.footer-inner small { font-size: inherit; }
.footer-inner a { color: inherit; text-decoration: none; }
.footer-inner a:hover, .footer-inner a:focus-visible { color: var(--green); text-decoration: underline; text-underline-offset: 4px; }

/* About page */
.article-width { width: min(100% - 48px, 690px); margin: 0 auto; }
.about-opening { padding: clamp(74px, 10vw, 132px) 0 clamp(84px, 11vw, 145px); }
.about-opening h1 { margin-bottom: 30px; font-size: clamp(2rem, 4.15vw, 3.35rem); }
.about-opening p, .idea-block > .article-width > p:not(.section-label):not(.word-origin):not(.featured-phrase) { margin-bottom: 1.45em; color: var(--muted); letter-spacing: 0.035em; }
.about-opening p:last-child { margin-bottom: 0; }
.about-opening strong { color: var(--ink); font-weight: 600; }
.idea-block { padding: clamp(70px, 9vw, 118px) 0; background: rgba(231, 223, 207, 0.42); }
.idea-block h2 { margin-bottom: 29px; }
.word-origin { margin: 0 0 25px; color: var(--green); font-family: Georgia, "Times New Roman", serif; font-size: clamp(1.4rem, 3vw, 2.1rem); letter-spacing: 0.055em; line-height: 1.3; }
.word-origin span { padding: 0 0.3em; color: var(--light-green); }
.featured-phrase { margin: clamp(38px, 6vw, 60px) 0; color: var(--green); font-size: clamp(1.7rem, 3.6vw, 2.8rem); font-weight: 500; letter-spacing: 0.045em; line-height: 1.6; }
.tools-block { padding: clamp(88px, 11vw, 145px) 0; border-bottom: 1px solid var(--line); }
.tools-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 0.9fr); gap: 60px; align-items: end; margin-bottom: 52px; }
.tools-heading h2 { margin-bottom: 0; }
.tools-heading > p { max-width: 31rem; margin: 0; color: var(--muted); letter-spacing: 0.035em; }
.tool-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.tool-card { min-height: 260px; padding: 30px 28px; border-top: 2px solid var(--light-green); background: rgba(231, 223, 207, 0.32); }
.tool-card h3, .value-grid h3 { margin: 0 0 17px; font-size: 1.13rem; font-weight: 600; letter-spacing: 0.045em; line-height: 1.65; }
.tool-card p, .value-grid p { margin: 0; color: var(--muted); font-size: 0.96rem; letter-spacing: 0.025em; }
.values-block { padding: clamp(82px, 10vw, 136px) 0 0; background: var(--beige); }
.values-intro { max-width: 675px; margin-bottom: 52px; }
.values-intro h2 { margin-bottom: 27px; }
.values-intro > p:last-child { margin: 0; color: #565750; letter-spacing: 0.035em; }
.value-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 38px; padding: 0 0 clamp(82px, 10vw, 126px); }
.value-grid article { padding-top: 20px; border-top: 1px solid rgba(78, 127, 97, 0.35); }
.future-statement { padding: clamp(75px, 10vw, 125px) 0; border-top: 1px solid rgba(78, 127, 97, 0.35); }
.future-statement > p:first-child { margin: 0 0 18px; color: var(--green); font-family: Georgia, "Times New Roman", serif; font-size: 1.05rem; font-weight: 700; letter-spacing: 0.14em; }
.future-statement h2 { max-width: 760px; margin-bottom: 29px; color: var(--green); font-size: clamp(2rem, 4.3vw, 3.7rem); }
.future-statement > p:not(:first-child) { max-width: 640px; margin-bottom: 0; color: #565750; letter-spacing: 0.035em; }
.future-statement .works-note { margin: 25px 0 0; color: var(--muted); font-size: 0.88rem; }
.return-link { display: inline-flex; gap: 14px; align-items: center; margin-top: 40px; color: var(--green); font-weight: 700; letter-spacing: 0.04em; text-decoration: none; }
.return-link span { font-size: 1.25em; transition: transform 160ms ease; }
.return-link:hover span, .return-link:focus-visible span { transform: translateX(4px); }
@media (max-width: 720px) {
  .container { width: min(100% - 40px, 1120px); }
  .site-header { padding: 20px 0; }
  .header-inner { flex-wrap: wrap; gap: 14px; }
  .header-nav { gap: 15px; }
  .header-link { font-size: 0.9rem; }
  .hero { min-height: 0; padding-top: 65px; }
  .hero-layout { grid-template-columns: 1fr; gap: 40px; }
  .hero-mark { width: min(70vw, 280px); justify-self: start; margin-left: 5%; }
  .section-grid, .coming-panel { grid-template-columns: 1fr; gap: 28px; }
  .article-width { width: min(100% - 40px, 690px); }
  .tools-heading { grid-template-columns: 1fr; gap: 22px; margin-bottom: 36px; }
  .tool-grid, .value-grid { grid-template-columns: 1fr; gap: 16px; }
  .tool-card { min-height: 0; padding: 27px 25px; }
  .value-grid { padding-bottom: clamp(72px, 10vw, 100px); }
  .about-opening .section-label, .idea-block .section-label, .tools-block .section-label, .values-block .section-label { margin-bottom: 16px; }
  .section-label { margin-bottom: 0; }
  h1 { line-height: 1.6; }
  .desktop-only { display: none; }
  .coming-panel > p br { display: none; }
}
@media (max-width: 420px) {
  .container { width: min(100% - 32px, 1120px); }
  .article-width { width: min(100% - 32px, 690px); }
  .hero { padding-top: 48px; }
  .footer-inner { flex-direction: column; gap: 5px; }
}