:root {
  --yad-teal: #0e7c7b;
  --yad-teal-dark: #0a5958;
  --yad-teal-light: #e4f3f2;
  --yad-coral: #ff7a59;
  --yad-coral-dark: #e35c3b;
  --yad-bg: #faf7f2;
  --yad-card: #ffffff;
  --yad-ink: #1a2e2c;
  --yad-ink-soft: #4d5f5d;
  --yad-border: #e2ded4;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(14, 124, 123, 0.08);
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Sans", "Yu Gothic", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--yad-bg);
  color: var(--yad-ink);
  line-height: 1.75;
}

a { color: var(--yad-teal); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  background: var(--yad-card);
  border-bottom: 1px solid var(--yad-border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--yad-ink);
}
.logo:hover { text-decoration: none; }
.logo .shell { width: 48px; height: 48px; object-fit: contain; }
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
  font-size: 0.95rem;
}
.nav-links a { color: var(--yad-ink-soft); font-weight: 500; }
.nav-links a:hover { color: var(--yad-teal); text-decoration: none; }
.btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--yad-coral); color: #fff; }
.btn-primary:hover { background: var(--yad-coral-dark); }
.btn-outline { background: transparent; color: var(--yad-teal); border: 1.5px solid var(--yad-teal); }
.btn-outline:hover { background: var(--yad-teal-light); }
.btn-lg { padding: 14px 32px; font-size: 1.05rem; }

/* Hero */
.hero {
  padding: 72px 0 56px;
  text-align: center;
  background: linear-gradient(180deg, var(--yad-teal-light) 0%, var(--yad-bg) 100%);
}
.hero .eyebrow {
  display: inline-block;
  background: #fff;
  border: 1px solid var(--yad-border);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 0.85rem;
  color: var(--yad-teal-dark);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: 2.5rem;
  line-height: 1.4;
  margin: 0 0 16px;
}
.hero p.lead {
  font-size: 1.15rem;
  color: var(--yad-ink-soft);
  max-width: 620px;
  margin: 0 auto 32px;
}
.hero .cta-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero .note {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--yad-ink-soft);
}

/* Card demo */
.demo-card {
  max-width: 420px;
  margin: 40px auto 0;
  background: var(--yad-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  text-align: left;
}
.demo-card img.hotel-photo {
  border-radius: 10px;
  height: 200px;
  object-fit: cover;
  width: 100%;
  background: linear-gradient(135deg, #cfe8e6, #9fd2ce);
}
.demo-card h3 { margin: 14px 0 4px; font-size: 1.1rem; }
.demo-card .meta { color: var(--yad-ink-soft); font-size: 0.85rem; margin-bottom: 12px; }
.demo-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.demo-buttons a {
  display: block;
  text-align: center;
  padding: 10px 0;
  border-radius: 8px;
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
}
.demo-credit { text-align: right; font-size: 0.7rem; color: #b8b3a6; margin-top: 10px; }

/* Sections */
section { padding: 64px 0; }
section.alt { background: #fff; border-top: 1px solid var(--yad-border); border-bottom: 1px solid var(--yad-border); }
.section-title { text-align: center; margin-bottom: 12px; font-size: 1.9rem; }
.section-sub { text-align: center; color: var(--yad-ink-soft); max-width: 620px; margin: 0 auto 48px; }

/* Before/After */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}
.compare .panel {
  background: var(--yad-card);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--yad-border);
}
.compare .panel.before { opacity: 0.85; }
.compare .panel.after { border-color: var(--yad-teal); box-shadow: var(--shadow); }
.compare h4 { margin-top: 0; }
.compare ul { padding-left: 20px; color: var(--yad-ink-soft); }
.messy-links { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
.messy-links span {
  display: block;
  background: #f1efe8;
  border: 1px dashed #c9c2b0;
  padding: 8px 12px;
  font-size: 0.85rem;
  color: #8a8474;
  border-radius: 6px;
}

/* Developer story */
.dev-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.dev-story .quote {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--yad-teal-dark);
  line-height: 1.6;
  margin-bottom: 16px;
}
.stat-shot {
  background: var(--yad-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}
.stat-shot .stat-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--yad-border); font-size: 0.9rem; }
.stat-shot .stat-row:last-child { border-bottom: none; }
.stat-shot .stat-row b { color: var(--yad-teal-dark); }

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--yad-card);
  border: 1px solid var(--yad-border);
  border-radius: var(--radius);
  padding: 24px;
}
.feature-card .tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.tag.free { background: var(--yad-teal-light); color: var(--yad-teal-dark); }
.tag.premium { background: #fff0e9; color: var(--yad-coral-dark); }
.feature-card h4 { margin: 0 0 8px; }
.feature-card p { color: var(--yad-ink-soft); font-size: 0.92rem; margin: 0; }

/* Pricing table */
.price-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  max-width: 780px;
  margin: 0 auto;
}
.price-card {
  background: var(--yad-card);
  border-radius: var(--radius);
  border: 1px solid var(--yad-border);
  padding: 32px;
  text-align: center;
}
.price-card.highlight { border: 2px solid var(--yad-coral); box-shadow: var(--shadow); position: relative; }
.price-card.highlight::before {
  content: "おすすめ";
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--yad-coral);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
}
.price-card .plan-name { font-weight: 700; color: var(--yad-ink-soft); margin-bottom: 8px; }
.price-card .price { font-size: 2.2rem; font-weight: 800; margin-bottom: 4px; }
.price-card .price small { font-size: 1rem; font-weight: 500; color: var(--yad-ink-soft); }
.price-jpy-note { font-size: 0.8rem; color: var(--yad-ink-soft); margin: 0 0 12px; }
.price-jpy-note a { color: inherit; text-decoration: underline; }
.price-card ul { text-align: left; padding-left: 20px; color: var(--yad-ink-soft); margin: 20px 0; }
.price-card ul li { margin-bottom: 8px; }

/* FAQ */
.faq-item {
  background: var(--yad-card);
  border: 1px solid var(--yad-border);
  border-radius: 10px;
  padding: 18px 22px;
  margin-bottom: 12px;
}
.faq-item h4 { margin: 0 0 8px; font-size: 1rem; }
.faq-item p { margin: 0; color: var(--yad-ink-soft); font-size: 0.92rem; }

/* Compare table */
table.compare-table { width: 100%; border-collapse: collapse; background: var(--yad-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
table.compare-table th, table.compare-table td { padding: 14px 16px; border-bottom: 1px solid var(--yad-border); text-align: center; font-size: 0.9rem; }
table.compare-table th { background: var(--yad-teal-light); color: var(--yad-teal-dark); }
table.compare-table td:first-child, table.compare-table th:first-child { text-align: left; }
table.compare-table tr:last-child td { border-bottom: none; }

/* Docs */
.docs-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.docs-list li {
  background: var(--yad-card);
  border: 1px solid var(--yad-border);
  border-radius: 10px;
  padding: 16px 20px;
  display: flex;
  gap: 14px;
  align-items: baseline;
}
.docs-list li .num { color: var(--yad-teal); font-weight: 700; min-width: 24px; }
.docs-list li.soon { opacity: 0.55; }
.docs-list li .soon-badge { font-size: 0.7rem; background: #f1efe8; color: #8a8474; padding: 2px 8px; border-radius: 999px; margin-left: 8px; }

.doc-page main.container { max-width: 760px; padding-top: 40px; padding-bottom: 60px; }
.doc-page h1 { font-size: 1.9rem; }
.doc-page h2 { font-size: 1.3rem; margin-top: 40px; color: var(--yad-teal-dark); }
.doc-page pre {
  background: #1a2e2c;
  color: #dff5f3;
  padding: 16px 18px;
  border-radius: 10px;
  overflow-x: auto;
  font-size: 0.85rem;
}
.doc-page code { background: #eef0ec; padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }
.doc-page pre code { background: none; padding: 0; }
.breadcrumb { font-size: 0.85rem; color: var(--yad-ink-soft); margin-bottom: 8px; }
.doc-nav { display: flex; justify-content: space-between; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--yad-border); font-size: 0.9rem; }

/* Legal pages */
.legal-page main.container { max-width: 780px; padding-top: 40px; padding-bottom: 60px; }
.legal-page h2 { font-size: 1.2rem; margin-top: 36px; color: var(--yad-teal-dark); }
.legal-page table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.legal-page table th, .legal-page table td { text-align: left; padding: 12px; border-bottom: 1px solid var(--yad-border); font-size: 0.92rem; vertical-align: top; }
.legal-page table th { width: 30%; color: var(--yad-ink-soft); font-weight: 600; }
.updated { color: var(--yad-ink-soft); font-size: 0.85rem; }

/* Contact form */
.contact-form { max-width: 560px; margin: 0 auto; background: var(--yad-card); border: 1px solid var(--yad-border); border-radius: var(--radius); padding: 32px; }
.contact-form label { display: block; font-weight: 600; margin: 16px 0 6px; font-size: 0.9rem; }
.contact-form label:first-child { margin-top: 0; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--yad-border); border-radius: 8px; font-size: 0.95rem; font-family: inherit;
}
.contact-form textarea { min-height: 120px; resize: vertical; }
.contact-form .btn { margin-top: 22px; width: 100%; }
.quick-faq { max-width: 560px; margin: 0 auto 32px; }
.quick-faq h3 { text-align: center; }

/* Footer */
.site-footer {
  background: var(--yad-ink);
  color: #cfe3e1;
  padding: 48px 0 28px;
  font-size: 0.88rem;
}
.footer-grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 32px; margin-bottom: 32px; }
.footer-col h5 { color: #fff; margin: 0 0 14px; font-size: 0.9rem; }
.footer-col a { color: #b7cbc9; display: block; margin-bottom: 8px; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #2b403e; padding-top: 20px; color: #8ba7a4; font-size: 0.8rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

.mascot-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--yad-ink-soft);
  font-size: 0.85rem;
  margin-top: 16px;
}
.mascot-icon { width: 88px; height: 88px; object-fit: contain; flex-shrink: 0; }
@media (max-width: 480px) {
  .mascot-note { text-align: left; }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .compare, .dev-story, .feature-grid, .price-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.9rem; }
}