:root {
  --bg: #f6fbfe;
  --bg-soft: #edf6fc;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --text: #182c3f;
  --text-soft: #3a536b;
  --primary: #2b7fc3;
  --primary-deep: #1c5b90;
  --accent: #f78c43;
  --line: rgba(24, 44, 63, 0.14);
  --shadow: 0 20px 48px rgba(24, 44, 63, 0.14);
  --radius: 18px;
  --radius-sm: 12px;
  --container: min(1140px, calc(100% - 2rem));
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "M PLUS Rounded 1c", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

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

a {
  color: var(--primary-deep);
}

a:hover {
  color: var(--primary);
}

.bg-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(880px 400px at 96% -10%, rgba(43, 127, 195, 0.2), rgba(43, 127, 195, 0)),
    radial-gradient(780px 420px at -8% 28%, rgba(247, 140, 67, 0.16), rgba(247, 140, 67, 0)),
    linear-gradient(180deg, #f8fcff, #edf6fc);
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(10px);
  background: rgba(248, 252, 255, 0.86);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.logo {
  text-decoration: none;
  color: inherit;
  display: inline-flex;
  align-items: center;
  gap: 0;
}

.logo-bar {
  width: clamp(220px, 38vw, 390px);
  height: auto;
  border-radius: 8px;
}

.logo-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.menu-button {
  display: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  padding: 0.45rem 0.9rem;
  font: inherit;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
}

.hero {
  padding: 4.4rem 0 2.8rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.3rem;
  align-items: start;
}

.whale-mark-wrap {
  margin: 0 0 0.6rem;
  width: min(100%, 360px);
}

.whale-mark {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.eyebrow {
  margin: 0;
  color: var(--primary-deep);
  font-weight: 700;
  letter-spacing: 0.04em;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.3;
}

h1 {
  margin-top: 0.55rem;
  font-family: "Shippori Mincho B1", "Hiragino Mincho ProN", serif;
  font-size: clamp(1.9rem, 4.1vw, 3rem);
}

.lead {
  color: var(--text-soft);
  margin: 1rem 0 0;
}

.cta-row {
  margin-top: 1.4rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
}

.button.primary {
  background: var(--primary);
  color: #fff;
}

.button.primary:hover {
  background: var(--primary-deep);
  color: #fff;
}

.button.ghost {
  border-color: var(--line);
  background: #fff;
}

.hours-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 1.1rem;
}

.hours-card h2 {
  font-size: 1.24rem;
}

.caption {
  margin: 0.5rem 0 0.8rem;
  color: var(--text-soft);
  font-size: 0.93rem;
}

.hours-card table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
}

.hours-card th,
.hours-card td {
  border: 1px solid var(--line);
  text-align: center;
  padding: 0.45rem;
}

.hours-card thead th {
  background: #e1f0fa;
}

.legend {
  margin: 0.72rem 0 0;
  font-size: 0.84rem;
  color: var(--text-soft);
}

.section {
  padding: 2rem 0;
}

.section-title {
  font-family: "Shippori Mincho B1", "Hiragino Mincho ProN", serif;
  font-size: clamp(1.36rem, 2.3vw, 2rem);
  margin-bottom: 1rem;
}

.cards {
  display: grid;
  gap: 0.9rem;
}

.closure-board {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fffef9;
  padding: 0.9rem 1rem;
  margin-bottom: 0.9rem;
}

.closure-board h3 {
  font-size: 1rem;
  margin-bottom: 0.45rem;
}

.closure-empty {
  margin: 0;
  color: var(--text-soft);
}

.closure-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.closure-list li {
  display: grid;
  grid-template-columns: 13rem 1fr;
  gap: 0.6rem;
  border-top: 1px solid var(--line);
  padding-top: 0.45rem;
}

.closure-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.closure-date {
  font-weight: 700;
  color: var(--primary-deep);
}

.closure-note {
  color: var(--text-soft);
}

.cards.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  padding: 1rem;
}

.card h3 {
  font-size: 1.08rem;
  margin-bottom: 0.4rem;
}

.card p,
.card li {
  color: var(--text-soft);
}

.card ul {
  margin: 0;
  padding-left: 1.2rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: start;
}

.access-split {
  grid-template-columns: 0.95fr 1.05fr;
  align-items: center;
}

.signature {
  margin-top: 1.1rem;
  font-weight: 700;
  text-align: right;
}

.plain-list {
  margin: 0;
  padding-left: 1.2rem;
}

.map-link {
  margin-top: 1rem;
}

.map-card {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  width: min(100%, 560px);
  justify-self: center;
  background: #f8fbff;
  padding: 0.5rem;
  box-shadow: var(--shadow);
}

.map-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 500 / 345;
  object-fit: contain;
  border-radius: 12px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.7rem;
}

.gallery figure {
  margin: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
}

.gallery img {
  width: 100%;
  height: 165px;
  object-fit: cover;
}

.gallery figcaption {
  font-size: 0.83rem;
  color: var(--text-soft);
  padding: 0.4rem 0.55rem 0.55rem;
}

.link-list {
  margin: 0;
  padding-left: 1.2rem;
}

.link-list li + li {
  margin-top: 0.4rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  padding: 1.35rem 0 1.8rem;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  gap: 0.4rem;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 980px) {
  .hero-grid,
  .split,
  .cards.three,
  .cards.two {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 740px) {
  .logo-bar {
    width: min(68vw, 270px);
  }

  .menu-button {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.45rem);
    padding: 0.7rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.97);
    box-shadow: var(--shadow);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .nav-links.open {
    display: flex;
  }

  .hero {
    padding-top: 3.2rem;
  }

  .whale-mark-wrap {
    width: min(100%, 280px);
  }

  .hours-card {
    padding: 0.9rem;
  }

  .hours-card table {
    font-size: 0.82rem;
  }

  .gallery img {
    height: 140px;
  }

  .closure-list li {
    grid-template-columns: 1fr;
    gap: 0.12rem;
  }
}