:root {
  color-scheme: light;
  --ink: #17383a;
  --muted: #637879;
  --deep: #123d40;
  --teal: #197c78;
  --paper: #f7f8f4;
  --gold: #f0c65d;
  --line: #e1e9e3;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Yu Gothic UI", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.site-header {
  min-height: 86px;
  padding: 0 clamp(22px, 7vw, 104px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(225, 233, 227, .8);
}
.brand {
  display: inline-flex;
  gap: 11px;
  align-items: center;
  color: var(--deep);
  text-decoration: none;
  font: 800 12px "Yu Gothic UI", sans-serif;
  letter-spacing: .08em;
}
.brand small {
  display: block;
  margin-top: 3px;
  color: #78908d;
  font-size: 8px;
  letter-spacing: .17em;
}
.access-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid #dce8df;
  border-radius: 30px;
  color: #47706c;
  background: #fff;
  font-size: 11px;
}
.access-badge i { width: 7px; height: 7px; border-radius: 50%; background: #d1a740; }
.hero {
  position: relative;
  max-width: 1440px;
  min-height: 590px;
  margin: 0 auto;
  padding: 92px clamp(22px, 10vw, 148px) 92px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: clamp(24px, 6vw, 88px);
  overflow: hidden;
}
.hero-copy { position: relative; z-index: 1; max-width: 560px; }
.eyebrow {
  margin: 0 0 22px;
  color: var(--teal);
  font: 700 10px "Yu Gothic UI", sans-serif;
  letter-spacing: .2em;
}
h1 {
  margin: 0;
  color: var(--deep);
  font: 800 clamp(40px, 5.2vw, 68px)/1.26 "Yu Gothic UI", "Hiragino Kaku Gothic ProN", sans-serif;
  letter-spacing: -.06em;
}
h1 em { color: var(--teal); font-style: normal; }
.lead {
  max-width: 475px;
  margin: 23px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 2;
}
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; margin-top: 32px; }
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  padding: 0 19px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 700;
}
.button-muted { color: #66807e; background: #e8efea; }
.text-link { color: var(--teal-dark, #0d5f60); font-size: 12px; font-weight: 700; text-decoration: none; }
.text-link span { margin-left: 7px; }
.availability { margin: 14px 0 0; color: #778887; font-size: 11px; line-height: 1.8; }
.hero-art {
  position: relative;
  min-height: 365px;
  display: grid;
  place-items: center;
}
.art-orbit { position: absolute; border: 1px solid rgba(25, 124, 120, .13); border-radius: 50%; }
.orbit-one { width: 355px; height: 355px; }
.orbit-two { width: 280px; height: 280px; border-style: dashed; }
.card-main {
  position: relative;
  z-index: 1;
  width: min(300px, 78%);
  min-height: 265px;
  padding: 27px;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 17px;
  background: rgba(255,255,255,.92);
  box-shadow: 0 26px 65px rgba(28, 74, 67, .14);
  transform: rotate(-3deg);
}
.art-label { color: #6c8b86; font: 700 9px "Yu Gothic UI", sans-serif; letter-spacing: .17em; }
.art-day { margin: 17px 0 4px; color: #e2b94e; font: 800 53px "Yu Gothic UI", sans-serif; line-height: 1; }
.card-main strong { max-width: 210px; color: var(--deep); font-size: 19px; line-height: 1.6; }
.art-rule { width: 43px; height: 3px; margin: 20px 0 12px; border-radius: 3px; background: var(--teal); }
.art-caption { color: #768b88; font-size: 11px; }
.art-note {
  position: absolute;
  z-index: 2;
  padding: 12px 16px;
  border: 1px solid #e8eee8;
  border-radius: 8px;
  background: white;
  box-shadow: 0 10px 26px rgba(28, 74, 67, .09);
  color: #536e6d;
  font-size: 11px;
  font-weight: 600;
}
.art-note span { margin-right: 8px; color: var(--teal); font: 700 10px "Yu Gothic UI", sans-serif; }
.note-top { top: 34px; right: -2px; transform: rotate(3deg); }
.note-bottom { bottom: 36px; left: -8px; transform: rotate(2deg); }
.art-spark { position: absolute; color: #e8bd50; }
.spark-one { top: 35px; left: 29px; font-size: 28px; }
.spark-two { right: 15px; bottom: 28px; font-size: 18px; }
.hero-index {
  position: absolute;
  right: clamp(22px, 7vw, 104px);
  bottom: 31px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #829392;
  font: 600 9px "Yu Gothic UI", sans-serif;
  letter-spacing: .13em;
}
.hero-index span { color: var(--teal); }
.hero-index i { width: 42px; height: 1px; background: #cad8d1; }
.section-wrap { padding: 92px clamp(22px, 10vw, 148px); }
.approach { background: #fff; }
.section-heading { max-width: 570px; }
.section-heading h2,.invitation h2 {
  margin: 0;
  color: var(--deep);
  font: 800 clamp(31px, 4vw, 45px)/1.4 "Yu Gothic UI", "Hiragino Kaku Gothic ProN", sans-serif;
  letter-spacing: -.045em;
}
.section-heading > p:last-child,.invitation p:last-child { color: var(--muted); font-size: 13px; line-height: 2; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 48px; }
.step { min-height: 190px; padding: 21px 19px; border: 1px solid var(--line); border-radius: 10px; background: #fcfdfa; }
.step-number { color: var(--teal); font: 700 9px "Yu Gothic UI", sans-serif; letter-spacing: .12em; }
.step h3 { margin: 22px 0 9px; color: var(--deep); font-size: 16px; }
.step p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.9; }
.invitation {
  margin: 0;
  padding: 65px clamp(22px, 10vw, 148px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: #edf4ef;
}
.invitation > div { max-width: 680px; }
.invitation .eyebrow { margin-bottom: 14px; }
.invitation h2 { font-size: clamp(25px, 3vw, 34px); }
.invitation p:last-child { max-width: 660px; margin-bottom: 0; }
.site-footer {
  min-height: 82px;
  padding: 20px clamp(22px, 7vw, 104px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: #879592;
  font-size: 10px;
}
.site-footer a { color: #547571; font-weight: 600; text-decoration: none; }
.site-footer a span { margin-left: 4px; }
@media (max-width: 820px) {
  .hero { min-height: auto; padding-top: 72px; padding-bottom: 88px; grid-template-columns: 1fr; gap: 32px; }
  .hero-copy { max-width: 620px; }
  .hero-art { min-height: 330px; }
  .orbit-one { width: 320px; height: 320px; }
  .orbit-two { width: 250px; height: 250px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .site-header { min-height: 72px; padding-inline: 18px; }
  .brand { font-size: 10px; }
  .access-badge { padding: 8px 10px; font-size: 9px; }
  .hero { padding: 62px 22px 77px; }
  .eyebrow { font-size: 9px; }
  .lead { font-size: 13px; }
  .hero-art { min-height: 300px; }
  .orbit-one { width: 285px; height: 285px; }
  .orbit-two { width: 225px; height: 225px; }
  .card-main { min-height: 242px; padding: 23px; }
  .note-top { right: -2px; }
  .note-bottom { left: 0; }
  .section-wrap { padding: 68px 22px; }
  .steps { gap: 10px; margin-top: 31px; }
  .step { min-height: 190px; padding: 17px 14px; }
  .step h3 { margin-top: 18px; font-size: 14px; }
  .invitation { padding: 48px 22px; }
  .site-footer { align-items: flex-start; flex-direction: column; padding: 20px 22px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}