:root {
  --ink: #1c2030;
  --muted: #667080;
  --soft: #f5f2ed;
  --paper: #fffdf9;
  --line: #e6e0d8;
  --plum: #5b3e75;
  --plum-dark: #30213e;
  --sage: #6e8c7a;
  --gold: #d4a84c;
  --max: 1160px;
  font-family: "Hiragino Sans", "Yu Gothic", YuGothic, Meiryo, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.8;
}
a { color: inherit; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: min(var(--max), calc(100% - 3rem));
  margin: 0 auto;
  padding: 1.25rem 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  color: var(--plum-dark);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  color: #fff;
  background: var(--plum);
  border-radius: .7rem;
  font-family: Georgia, serif;
  font-size: 1.35rem;
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--muted);
  font-size: .88rem;
}
.site-header nav a { text-decoration: none; }
.site-header nav a:hover,
.site-header nav a:focus-visible { color: var(--plum); }
.nav-login {
  padding: .45rem .95rem;
  color: #fff !important;
  background: var(--plum);
  border-radius: 999px;
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 6rem);
  width: min(var(--max), calc(100% - 3rem));
  min-height: 38rem;
  margin: 0 auto;
  padding: 4.5rem 0 5.5rem;
}
.eyebrow {
  margin: 0 0 .9rem;
  color: var(--plum);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .17em;
}
.hero h1 {
  max-width: 650px;
  margin: 0;
  color: var(--plum-dark);
  font-size: clamp(2.65rem, 5.5vw, 5rem);
  letter-spacing: -.07em;
  line-height: 1.15;
}
.hero h1 em { color: var(--plum); font-style: normal; }
.hero-copy .lead {
  max-width: 610px;
  margin: 1.55rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}
.actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-top: 2rem;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: .65rem 1.25rem;
  border-radius: 999px;
  font-weight: 750;
  text-decoration: none;
  transition: transform .18s ease, background .18s ease;
}
.button:hover,
.button:focus-visible { transform: translateY(-2px); }
.button.primary { color: #fff; background: var(--plum); box-shadow: 0 .8rem 1.8rem rgb(91 62 117 / 18%); }
.button.primary:hover,
.button.primary:focus-visible { background: var(--plum-dark); }
.button.text { color: var(--plum); border-bottom: 1px solid var(--plum); border-radius: 0; }

.hero-art {
  position: relative;
  min-height: 25rem;
  overflow: hidden;
  background: linear-gradient(140deg, #ede7f4, #f7e9ca 70%, #e2eee7);
  border-radius: 46% 54% 47% 53%;
}
.hero-art::before,
.hero-art::after {
  position: absolute;
  content: "";
  border: 1px solid rgb(255 255 255 / 70%);
  border-radius: 50%;
  transform: rotate(-17deg);
}
.hero-art::before { inset: 12% 28%; }
.hero-art::after { inset: 28% 4%; transform: rotate(42deg); }
.art-spark {
  position: absolute;
  color: var(--gold);
  font-size: 1.7rem;
}
.art-spark.one { top: 17%; left: 17%; }
.art-spark.two { right: 15%; bottom: 17%; font-size: 1.15rem; }
.art-panel {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  display: grid;
  gap: .75rem;
  width: min(20rem, 70%);
  padding: 1.6rem;
  background: rgb(255 253 249 / 94%);
  box-shadow: 0 1.5rem 3rem rgb(48 33 62 / 15%);
  transform: translate(-50%, -50%) rotate(4deg);
}
.art-panel .mini-label,
.art-panel .mini-foot {
  color: var(--plum);
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .14em;
}
.art-panel strong { color: var(--plum-dark); font-size: 1.4rem; line-height: 1.45; }
.art-panel .rule { width: 3rem; height: 3px; background: var(--gold); }
.art-panel .mini-foot { color: var(--muted); font-weight: 650; }

.section {
  padding: 6rem 0;
  border-top: 1px solid var(--line);
}
.section > .section-inner,
.section-heading,
.feature-grid,
.creator-grid,
.footer-inner {
  width: min(var(--max), calc(100% - 3rem));
  margin: 0 auto;
}
.section-heading { margin-bottom: 2.6rem; }
.section-heading h2,
.creator-copy h2 {
  max-width: 670px;
  margin: 0;
  color: var(--plum-dark);
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  letter-spacing: -.05em;
  line-height: 1.3;
}
.section-heading p:not(.eyebrow),
.creator-copy > p { max-width: 650px; margin: 1rem 0 0; color: var(--muted); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}
.feature-card {
  min-height: 15rem;
  padding: 1.6rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 1rem;
}
.feature-card .number { color: var(--gold); font-family: Georgia, serif; font-size: 1.3rem; }
.feature-card h3 { margin: 1rem 0 .55rem; color: var(--plum-dark); font-size: 1.2rem; line-height: 1.45; }
.feature-card p { margin: 0; color: var(--muted); font-size: .94rem; }
.feature-card a { color: var(--plum); text-underline-offset: .2em; }
.creator-section { background: var(--soft); }
.creator-grid {
  display: grid;
  grid-template-columns: 1fr .9fr;
  gap: clamp(2rem, 7vw, 6rem);
  align-items: center;
}
.creator-list { display: grid; gap: .8rem; margin: 2rem 0 0; padding: 0; list-style: none; }
.creator-list li {
  position: relative;
  padding: 1rem 1rem 1rem 3rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: .75rem;
}
.creator-list li::before {
  position: absolute;
  top: 1rem;
  left: 1rem;
}
.creator-list strong { display: block; color: var(--plum-dark); }
.creator-list span { display: block; color: var(--muted); font-size: .9rem; }
.creator-note {
  padding: 1.75rem;
  color: #fff;
  background: var(--plum-dark);
  border-radius: 1rem;
}
.creator-note p { margin: 0; color: #eee6f3; }
.creator-note strong { display: block; margin-bottom: .8rem; color: #fff; font-size: 1.2rem; }

.closing {
  padding: 5rem 1.5rem;
  color: #fff;
  text-align: center;
  background: var(--plum-dark);
}
.closing h2 { margin: 0; font-size: clamp(1.8rem, 3.5vw, 3rem); letter-spacing: -.05em; }
.closing p { max-width: 600px; margin: 1rem auto 1.8rem; color: #eee6f3; }
.closing .button.primary { color: var(--plum-dark); background: var(--gold); box-shadow: none; }

footer {
  color: #d9d0df;
  background: var(--plum-dark);
  border-top: 1px solid rgb(255 255 255 / 14%);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: min(var(--max), calc(100% - 3rem));
  margin: 0 auto;
  padding: 1.35rem 0 1.7rem;
  font-size: .8rem;
}
.footer-inner > span { color: #bfb2c7; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-links li { border-left: 1px solid rgb(255 255 255 / 28%); }
.footer-links li:last-child { border-right: 1px solid rgb(255 255 255 / 28%); }
.footer-links a { display: inline-flex; padding: .1rem .8rem; color: #fff; text-decoration: none; }
.footer-links a:hover,
.footer-links a:focus-visible { color: #f4d689; }

@media (max-width: 840px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 3.4rem; }
  .hero-art { min-height: 20rem; }
  .creator-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .site-header,
  .section > .section-inner,
  .section-heading,
  .feature-grid,
  .creator-grid,
  .footer-inner,
  .hero { width: min(100% - 2rem, var(--max)); }
  .site-header { align-items: flex-start; padding: 1rem 0; }
  .site-header nav { gap: .65rem; }
  .site-header nav a:first-child { display: none; }
  .hero { padding-bottom: 3.5rem; }
  .hero h1 { font-size: clamp(2.35rem, 12vw, 3.5rem); }
  .section { padding: 4rem 0; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  .footer-links a { padding-right: .65rem; padding-left: .65rem; }
}

/* 2026-10-21: 見出しは句の切れ目（、）で折り返す。広い画面でも句が欄に収まる大きさにし、about の見出しは 1 行に収める。 */
.phrase { display: inline-block; max-width: 100%; }
.hero h1 { font-size: clamp(2.65rem, 4.7vw, 3.8rem); }
.section-heading h2,
.creator-copy h2 { font-size: clamp(1.9rem, 3.5vw, 2.75rem); }
.section-heading h2 { max-width: 860px; }
@media (max-width: 600px) {
  .hero h1 { font-size: clamp(2rem, 10vw, 3.5rem); }
}