:root {
  --color-bg: #0b0d10;
  --color-text: #14161a;
  --color-muted: #6b7280;
  --color-accent: #3b5bfd;
  --color-accent-2: #7b3bfd;
  --color-light: #f4f5f7;
  --color-white: #ffffff;
  --radius: 14px;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.8;
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(11, 13, 16, 0.75);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand-logo {
  height: 40px;
  width: auto;
  border-radius: 6px;
}

.nav-list {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: var(--color-white);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: opacity 0.2s;
}

.nav-list a:hover { opacity: 0.7; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-white);
}

/* Hero */
.hero {
  min-height: 100vh;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  color: var(--color-white);
  padding-top: 64px;
}

.hero-inner {
  text-align: center;
  padding-top: 60px;
  padding-bottom: 60px;
}

.hero-logo {
  height: 76px;
  width: auto;
  margin: 0 auto 24px;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}

.hero-tag {
  letter-spacing: 0.15em;
  font-size: 13px;
  font-weight: 700;
  color: #cfd6ff;
  margin: 0 0 18px;
}

.hero h1 {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 900;
  margin: 0 0 20px;
  line-height: 1.5;
}

.hero-sub {
  font-size: 16px;
  color: #e6e8ee;
  margin: 0 auto 34px;
  max-width: 520px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.7);
}

/* Sections */
.section {
  padding: 90px 0;
}

.section-title {
  font-size: 13px;
  letter-spacing: 0.2em;
  font-weight: 700;
  color: var(--color-accent);
  margin: 0 0 10px;
  text-align: center;
}

.section-lead {
  font-size: 26px;
  font-weight: 700;
  text-align: center;
  margin: 0 0 50px;
}

/* About */
.about { background: var(--color-light); }

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.about-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 32px 26px;
  box-shadow: 0 6px 24px rgba(20,22,26,0.06);
}

.about-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.about-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14.5px;
}

/* Info */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto 8px;
}

.price-card {
  background: var(--color-light);
  border-radius: var(--radius);
  padding: 26px 20px;
  text-align: center;
}

.price-card-wide {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #eef0ff, #f7f0ff);
}

.price-name {
  margin: 0 0 8px;
  font-size: 14.5px;
  color: var(--color-muted);
  font-weight: 500;
}

.price-amount {
  margin: 0;
  font-size: 28px;
  font-weight: 900;
  color: var(--color-text);
}

.price-amount span {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
  margin-left: 4px;
}

.price-note {
  text-align: center;
  color: var(--color-muted);
  font-size: 14px;
  margin: 0 0 60px;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  max-width: 640px;
  margin: 0 auto;
}

.info-table th, .info-table td {
  text-align: left;
  padding: 16px 12px;
  border-bottom: 1px solid #e7e8ec;
  font-size: 15px;
}

.info-table th {
  width: 140px;
  color: var(--color-muted);
  font-weight: 500;
}

.note {
  text-align: center;
  color: var(--color-muted);
  font-size: 13px;
  margin-top: 24px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* Boat */
.boat-card {
  display: flex;
  gap: 40px;
  align-items: stretch;
  background: var(--color-light);
  border-radius: 20px;
  overflow: hidden;
}

.boat-photo {
  width: 42%;
  object-fit: cover;
}

.boat-text {
  flex: 1;
  padding: 36px 36px 36px 0;
}

.boat-text h3 {
  margin: 0 0 14px;
  font-size: 24px;
}

.boat-desc {
  color: var(--color-muted);
  font-size: 14.5px;
  margin: 0 0 24px;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
}

.spec-table th, .spec-table td {
  text-align: left;
  padding: 10px 0;
  border-bottom: 1px solid #e7e8ec;
  font-size: 14px;
}

.spec-table th {
  width: 110px;
  color: var(--color-muted);
  font-weight: 500;
}

.spec-source {
  margin: 16px 0 0;
  font-size: 12px;
  color: var(--color-muted);
}

/* Access */
.access { background: var(--color-light); }

.address {
  text-align: center;
  font-size: 15px;
  font-weight: 500;
  margin: 0 0 24px;
}

.map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(20,22,26,0.08);
}

/* Instagram */
.insta-card {
  display: flex;
  align-items: center;
  gap: 40px;
  background: linear-gradient(135deg, #eef0ff, #f7f0ff);
  border-radius: 20px;
  padding: 40px;
}

.insta-qr {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 16px;
  flex-shrink: 0;
}

.insta-handle {
  font-weight: 700;
  font-size: 20px;
  color: var(--color-accent);
  margin: 0 0 12px;
}

.insta-text p {
  color: var(--color-muted);
  font-size: 14.5px;
}

/* Footer */
.site-footer {
  background: var(--color-bg);
  color: #a9adb8;
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo {
  height: 30px;
  border-radius: 4px;
  opacity: 0.9;
}

.footer-inner p {
  margin: 0;
  font-size: 12.5px;
}

/* Responsive */
@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
  .insta-card { flex-direction: column; text-align: center; }
  .price-grid { grid-template-columns: 1fr 1fr; }
  .boat-card { flex-direction: column; }
  .boat-photo { width: 100%; height: 240px; }
  .boat-text { padding: 0 28px 28px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .nav-list {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11,13,16,0.97);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .nav-list.open {
    max-height: 300px;
  }

  .nav-list li { border-top: 1px solid rgba(255,255,255,0.08); }

  .nav-list a {
    display: block;
    padding: 16px 20px;
  }
}