/* UNRYUTO - 風俗経営×AI / Premium Edition 2026-04-30 */
:root {
  --primary: #0a0e1a;
  --primary-light: #1a2030;
  --accent: #1e3a8a;
  --accent-dark: #172554;
  --gold: #c9a961;
  --gold-dark: #a88b3f;
  --gold-light: #e2c989;
  --text: #2d3748;
  --text-light: #6b7280;
  --bg: #ffffff;
  --bg-dark: #0a0e1a;
  --bg-section: #faf9f6;
  --bg-warm: #f5f2ea;
  --border: #e8e4dc;
  --border-strong: #d4cdbf;
  --max-w: 1180px;
  --space-section: 120px;
  --font-serif: 'Cormorant Garamond', 'Noto Serif JP', 'Yu Mincho', serif;
  --shadow-sm: 0 1px 2px rgba(10,14,26,.04);
  --shadow-md: 0 8px 24px rgba(10,14,26,.06);
  --shadow-lg: 0 24px 60px rgba(10,14,26,.12);
  --radius-card: 4px;
  --radius-pill: 999px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans JP', 'Yu Gothic', 'Hiragino Sans', sans-serif;
  color: var(--text);
  line-height: 1.95;
  letter-spacing: 0.02em;
  background: var(--bg);
  font-feature-settings: "palt";
}

a { color: var(--accent); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--gold-dark); }

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

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 28px; }

/* Header */
.site-header {
  background: var(--bg-dark);
  padding: 18px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(201, 169, 97, 0.15);
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.site-logo {
  display: inline-flex;
  align-items: center;
  color: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 0;
}
.site-logo img { display: block; height: 38px; width: auto; }
.site-logo span { color: var(--gold); font-family: var(--font-serif); font-style: italic; font-weight: 500; }
.site-nav { display: flex; gap: 28px; align-items: center; }
.site-nav a { color: #cbd5e1; font-size: .88rem; font-weight: 500; letter-spacing: 0.05em; transition: color .25s ease; }
.site-nav a:hover { color: var(--gold-light); }
.nav-cta {
  background: transparent;
  color: var(--gold) !important;
  padding: 9px 22px;
  border-radius: 0;
  border: 1px solid var(--gold);
  font-weight: 600;
  font-size: .82rem;
  letter-spacing: 0.08em;
  transition: all .3s ease;
}
.nav-cta:hover { background: var(--gold); color: var(--primary) !important; }

/* Hamburger */
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: #fff; margin: 5px 0; transition: .3s; }

/* Hero */
.hero {
  background:
    radial-gradient(ellipse at 30% 40%, rgba(30,58,138,.12) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 60%, rgba(201,169,97,.08) 0%, transparent 50%),
    linear-gradient(135deg, #0a0e1a 0%, #1a2030 50%, #0a0e1a 100%);
  color: #fff;
  padding: 160px 0 140px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 1px;
  background: var(--gold);
}
.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.04em;
  margin-bottom: 28px;
  position: relative;
}
.hero h1 .highlight {
  color: var(--gold);
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 0 4px;
}
.hero .subtitle {
  font-size: 1.08rem;
  color: #b8bcc8;
  margin-bottom: 48px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  letter-spacing: 0.04em;
  line-height: 2;
}
.hero-badge {
  display: inline-block;
  background: transparent;
  color: var(--gold);
  padding: 7px 22px;
  border-radius: 0;
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  margin-bottom: 32px;
  border: 1px solid rgba(201,169,97,.4);
  position: relative;
  text-transform: uppercase;
}
.hero-cta {
  display: inline-block;
  background: var(--gold);
  color: var(--primary);
  padding: 17px 50px;
  border-radius: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: all .35s ease;
  position: relative;
  border: 1px solid var(--gold);
}
.hero-cta:hover {
  background: transparent;
  color: var(--gold);
  border-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(201,169,97,.2);
}

/* Section */
.section { padding: var(--space-section) 0; }
.section-alt { background: var(--bg-section); }
.section-title {
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--primary);
  text-align: center;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 28px;
  line-height: 1.4;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 1px;
  background: var(--gold);
}
.section-eyebrow {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--gold-dark);
  letter-spacing: 0.15em;
  margin-bottom: 8px;
  text-align: center;
  font-weight: 500;
}
.section-lead {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 64px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  letter-spacing: 0.03em;
  line-height: 2.05;
}

/* Problem Section */
.problems {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}
.problem-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 40px 32px;
  transition: all .35s ease;
}
.problem-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--gold-light);
}
.problem-card .icon {
  width: 36px;
  height: 36px;
  margin-bottom: 18px;
  color: var(--gold-dark);
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.problem-card .icon svg { width: 32px; height: 32px; stroke: var(--gold-dark); fill: none; stroke-width: 1.5; }
.problem-card h3 {
  font-size: 1.08rem;
  margin-bottom: 12px;
  color: var(--primary);
  letter-spacing: 0.05em;
  font-weight: 700;
  line-height: 1.6;
}
.problem-card p { font-size: .92rem; color: var(--text-light); line-height: 1.95; }

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}
.feature-card {
  background: #fff;
  border-radius: var(--radius-card);
  padding: 44px 36px;
  box-shadow: var(--shadow-sm);
  border-top: 2px solid var(--gold);
  transition: all .35s ease;
  position: relative;
}
.feature-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.feature-card h3 {
  font-size: 1.18rem;
  margin-bottom: 14px;
  color: var(--primary);
  letter-spacing: 0.04em;
  font-weight: 700;
  line-height: 1.55;
}
.feature-card p { font-size: .94rem; color: var(--text-light); line-height: 1.95; }
.feature-tag {
  display: inline-block;
  background: transparent;
  color: var(--gold-dark);
  padding: 4px 14px;
  border: 1px solid var(--gold);
  border-radius: 0;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 36px;
  max-width: 1000px;
  margin: 0 auto;
}
.price-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 56px 36px 44px;
  text-align: center;
  transition: all .35s ease;
  position: relative;
}
.price-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.price-card.featured {
  border-color: var(--gold);
  border-top: 3px solid var(--gold);
  box-shadow: var(--shadow-md);
}
.price-card.featured::before {
  content: 'RECOMMENDED';
  position: absolute;
  top: -1px; left: 50%;
  transform: translateX(-50%) translateY(-100%);
  background: var(--gold);
  color: var(--primary);
  padding: 6px 22px;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
}
.price-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--primary);
  letter-spacing: 0.06em;
  font-weight: 700;
}
.price-amount {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--primary);
  margin: 20px 0;
  letter-spacing: 0.02em;
  font-family: var(--font-serif);
}
.price-amount span { font-size: .85rem; font-weight: 400; color: var(--text-light); font-family: 'Noto Sans JP', sans-serif; letter-spacing: 0.05em; }
.price-card ul { list-style: none; text-align: left; margin: 28px 0; }
.price-card li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: .93rem;
  letter-spacing: 0.03em;
  position: relative;
  padding-left: 22px;
}
.price-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 22px;
  width: 12px; height: 1px;
  background: var(--gold);
}
.price-btn {
  display: block;
  width: 100%;
  padding: 16px;
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
  border-radius: 0;
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: all .3s ease;
}
.price-btn:hover { background: transparent; color: var(--primary); border-color: var(--primary); }
.price-card.featured .price-btn { background: var(--gold); border-color: var(--gold); color: var(--primary); }
.price-card.featured .price-btn:hover { background: transparent; color: var(--gold-dark); border-color: var(--gold-dark); }

/* Profile */
.profile {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
  align-items: start;
  max-width: 860px;
  margin: 0 auto;
}
.profile-img {
  width: 220px;
  height: 220px;
  border-radius: 0;
  background: linear-gradient(135deg, #faf9f6, #f5f2ea);
  border: 1px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-dark);
  font-size: 4.5rem;
  font-weight: 500;
  font-family: var(--font-serif);
  font-style: italic;
  position: relative;
}
.profile-img::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid var(--gold-light);
  pointer-events: none;
}
.profile-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
  letter-spacing: 0.06em;
}
.profile-title {
  color: var(--gold-dark);
  font-size: .92rem;
  margin-bottom: 20px;
  letter-spacing: 0.1em;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
}
.profile p { font-size: .96rem; line-height: 2.05; letter-spacing: 0.03em; color: var(--text); }
.profile-stats {
  display: flex;
  gap: 32px;
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.stat { text-align: center; }
.stat-num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gold-dark);
  display: block;
  font-family: var(--font-serif);
  letter-spacing: 0.02em;
}
.stat-label {
  font-size: .78rem;
  color: var(--text-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* CTA Section */
.cta-section {
  background:
    radial-gradient(ellipse at center, rgba(201,169,97,.08) 0%, transparent 60%),
    linear-gradient(135deg, #0a0e1a, #1a2030);
  color: #fff;
  padding: 110px 0;
  text-align: center;
  position: relative;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 40px; left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 1px;
  background: var(--gold);
}
.cta-section h2 {
  font-size: 2.1rem;
  margin-bottom: 20px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.5;
}
.cta-section h2 em {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--gold);
  font-weight: 500;
}
.cta-section p {
  color: #b8bcc8;
  margin-bottom: 40px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  line-height: 2;
  letter-spacing: 0.04em;
}
.cta-btn {
  display: inline-block;
  background: var(--gold);
  color: var(--primary);
  padding: 17px 56px;
  border-radius: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  transition: all .35s ease;
  border: 1px solid var(--gold);
}
.cta-btn:hover {
  background: transparent;
  color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(201,169,97,.25);
}

/* Footer */
.site-footer {
  background: var(--bg-dark);
  color: #94a3b8;
  padding: 60px 0 28px;
  font-size: .85rem;
  border-top: 1px solid rgba(201,169,97,.15);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
.footer-brand {
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: 0.12em;
}
.footer-brand span { color: var(--gold); font-family: var(--font-serif); font-style: italic; font-weight: 500; }
.footer-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--gold);
  font-size: .92rem;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  font-weight: 500;
}
.footer-links h4 {
  color: #fff;
  font-size: .85rem;
  margin-bottom: 16px;
  letter-spacing: 0.15em;
  font-weight: 600;
  text-transform: uppercase;
}
.footer-links a { display: block; color: #94a3b8; padding: 4px 0; font-size: .85rem; letter-spacing: 0.03em; }
.footer-links a:hover { color: var(--gold-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 24px;
  text-align: center;
  letter-spacing: 0.05em;
  font-size: .78rem;
}

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.active { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.85rem; line-height: 1.5; }
  .hero { padding: 90px 0 70px; }
  .hero .subtitle { font-size: 1rem; }
  .site-nav { display: none; }
  .site-nav.active { display: flex; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: var(--bg-dark); padding: 24px; gap: 18px; }
  .hamburger { display: block; }
  .section { padding: 70px 0; }
  .section-title { font-size: 1.5rem; letter-spacing: 0.06em; }
  .profile { grid-template-columns: 1fr; text-align: center; gap: 32px; }
  .profile-img { margin: 0 auto; width: 160px; height: 160px; font-size: 3rem; }
  .profile-stats { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .cta-section h2 { font-size: 1.5rem; }
  .container { padding: 0 22px; }
}