:root {
  --ink: #233238;
  --muted: #5e6e70;
  --paper: #fffdf7;
  --cream: #fff7df;
  --mint: #d9f0df;
  --mint-strong: #75b98d;
  --sky: #d9eff7;
  --coral: #f7b29a;
  --coral-strong: #de6f57;
  --yellow: #f5cf65;
  --blue: #367c9f;
  --line: #e7e0d2;
  --shadow: 0 18px 45px rgba(42, 68, 65, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 8%, rgba(245, 207, 101, 0.26), transparent 24rem),
    linear-gradient(180deg, #f7fcfb 0%, var(--paper) 38%, #f5fbf1 100%);
  font-family:
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic",
    "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.8;
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
  padding: 14px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(222, 212, 194, 0.8);
  background: rgba(255, 253, 247, 0.92);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 240px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 3px solid #fff;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--coral), var(--yellow));
  box-shadow: 0 7px 16px rgba(222, 111, 87, 0.2);
  color: #fff;
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1;
}

.brand-sub,
.brand-title {
  display: block;
  letter-spacing: 0;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.3;
}

.brand-title {
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.4;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.site-nav a {
  min-height: 42px;
  padding: 8px 14px;
  border-radius: 999px;
  color: #385056;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav .active {
  background: #e8f4ed;
  color: #1e5f63;
  outline: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(340px, 1.08fr);
  gap: clamp(26px, 5vw, 72px);
  align-items: center;
  padding: clamp(52px, 8vw, 96px) clamp(18px, 5vw, 72px) clamp(44px, 7vw, 82px);
}

.hero-copy {
  max-width: 690px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(2.35rem, 6vw, 5.7rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(1.55rem, 3vw, 2.75rem);
  line-height: 1.22;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.12rem;
  line-height: 1.45;
}

.lead {
  color: #41575b;
  font-size: clamp(1rem, 1.5vw, 1.22rem);
  font-weight: 500;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 11px 20px;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  background: var(--coral-strong);
  color: #fff;
  box-shadow: 0 12px 24px rgba(222, 111, 87, 0.22);
}

.button.secondary {
  border: 2px solid #b7d9c3;
  background: rgba(255, 255, 255, 0.68);
  color: #245b5e;
}

.hero-visual {
  overflow: hidden;
  border: 8px solid #fff;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.section {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(42px, 6vw, 76px) 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(24px, 4vw, 70px);
  border-top: 1px solid var(--line);
}

.intro-grid p:last-child,
.split p,
.association-layout p {
  color: var(--muted);
  font-size: 1.04rem;
}

.feature-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  display: grid;
  align-content: start;
  min-height: 232px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  box-shadow: var(--shadow);
  text-decoration: none;
}

.feature-card strong {
  margin: 8px 0 12px;
  font-size: clamp(1.35rem, 2.6vw, 2.1rem);
  line-height: 1.22;
}

.feature-card span:last-child {
  color: #40555a;
}

.feature-card.coral {
  background: linear-gradient(145deg, #ffe6dc 0%, #fff9ec 100%);
}

.feature-card.mint {
  background: linear-gradient(145deg, #dcf2e4 0%, #edf8fa 100%);
}

.feature-kicker {
  color: #5b7376;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.split,
.association-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.9fr) minmax(280px, 1.1fr);
  gap: clamp(24px, 4vw, 70px);
  align-items: start;
}

.document-list {
  display: grid;
  gap: 12px;
}

.document-list a {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 10px 28px rgba(42, 68, 65, 0.08);
  color: #245b5e;
  font-weight: 800;
  text-decoration: none;
}

.document-list a::after {
  content: " →";
  color: var(--coral-strong);
}

.kindergarten-strip {
  width: 100%;
  padding-inline: clamp(18px, 5vw, 72px);
  background: linear-gradient(90deg, rgba(217, 239, 247, 0.62), rgba(217, 240, 223, 0.82));
}

.kindergarten-strip > div,
.school-tags {
  width: min(1120px, 100%);
  margin-inline: auto;
}

.school-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  list-style: none;
}

.school-tags li {
  padding: 8px 12px;
  border: 1px solid rgba(54, 124, 159, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.74);
  color: #365559;
  font-size: 0.94rem;
  font-weight: 700;
}

.page-hero {
  display: grid;
  min-height: 420px;
  align-content: end;
  padding: clamp(70px, 11vw, 118px) clamp(18px, 5vw, 72px) clamp(46px, 7vw, 74px);
  border-bottom: 1px solid var(--line);
}

.page-hero > * {
  width: min(860px, 100%);
}

.parents-hero {
  background:
    linear-gradient(90deg, rgba(255, 253, 247, 0.94), rgba(255, 253, 247, 0.66)),
    url("img/hero-kindergarten.png") center / cover;
}

.about-hero {
  background:
    linear-gradient(90deg, rgba(245, 251, 241, 0.96), rgba(245, 251, 241, 0.72)),
    url("img/hero-kindergarten.png") center / cover;
}

.quote-panel {
  display: grid;
  gap: 20px;
  padding: clamp(32px, 5vw, 58px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

blockquote {
  margin: 0;
  padding: 0 0 0 22px;
  border-left: 6px solid var(--yellow);
  color: #30484d;
  font-size: clamp(1.08rem, 2vw, 1.4rem);
  font-weight: 700;
}

blockquote p {
  margin: 0;
}

.source {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.source a,
.site-footer a {
  color: #245b86;
}

.parent-flow {
  border-top: 1px solid var(--line);
}

.step-grid,
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.step-grid article,
.value-grid article {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.step-grid p,
.value-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.step-number {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--coral-strong);
  font-size: 0.9rem;
  font-weight: 900;
}

.table-section {
  width: min(1180px, calc(100% - 36px));
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 0.95rem;
}

th,
td {
  padding: 15px 18px;
  border-bottom: 1px solid #eee6d9;
  text-align: left;
  vertical-align: top;
}

th {
  background: #ecf7f2;
  color: #28575b;
  font-weight: 900;
}

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

.facts {
  display: grid;
  gap: 12px;
  margin: 0;
}

.facts div {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.facts dt {
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 900;
}

.facts dd {
  margin: 2px 0 0;
  font-weight: 800;
}

.values-band {
  width: 100%;
  padding-inline: clamp(18px, 5vw, 72px);
  background: linear-gradient(100deg, rgba(255, 231, 219, 0.82), rgba(245, 207, 101, 0.2), rgba(217, 239, 247, 0.76));
}

.values-band > div {
  width: min(1120px, 100%);
  margin-inline: auto;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 28px clamp(18px, 5vw, 72px);
  border-top: 1px solid var(--line);
  background: #fffdf7;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .site-header,
  .hero,
  .intro-grid,
  .split,
  .association-layout {
    grid-template-columns: 1fr;
  }

  .site-header {
    display: grid;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .feature-band,
  .step-grid,
  .value-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 38px;
  }

  .hero-visual {
    order: -1;
  }

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

@media (max-width: 560px) {
  .site-header {
    padding-inline: 14px;
  }

  .brand {
    min-width: 0;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
    font-size: 1.12rem;
  }

  .brand-sub {
    font-size: 0.68rem;
  }

  .brand-title {
    font-size: 0.98rem;
  }

  .site-nav {
    gap: 6px;
  }

  .site-nav a {
    min-height: 38px;
    padding: 7px 10px;
    font-size: 0.84rem;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .button {
    padding-inline: 14px;
  }

  .quote-panel {
    width: min(100% - 28px, 1120px);
  }

  th,
  td {
    padding: 12px;
  }
}