/* UNRYUTO - 風俗経営×AI */
:root {
  --primary: #0f172a;
  --accent: #3b82f6;
  --accent-dark: #1d4ed8;
  --gold: #f59e0b;
  --text: #334155;
  --text-light: #64748b;
  --bg: #ffffff;
  --bg-dark: #0f172a;
  --bg-section: #f8fafc;
  --border: #e2e8f0;
  --max-w: 1100px;
}

*, *::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: 1.8;
  background: var(--bg);
}

a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent-dark); }

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

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

/* Header */
.site-header {
  background: var(--bg-dark);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0,0,0,.3);
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.site-logo {
  color: #fff;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: .05em;
}
.site-logo span { color: var(--accent); }
.site-nav { display: flex; gap: 24px; align-items: center; }
.site-nav a { color: #cbd5e1; font-size: .9rem; font-weight: 500; }
.site-nav a:hover { color: #fff; }
.nav-cta {
  background: var(--accent);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 700;
  font-size: .85rem;
}
.nav-cta:hover { background: var(--accent-dark); }

/* 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: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  color: #fff;
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(59,130,246,.08) 0%, transparent 50%);
}
.hero h1 {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
  position: relative;
}
.hero h1 .highlight { color: var(--accent); }
.hero .subtitle {
  font-size: 1.15rem;
  color: #94a3b8;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}
.hero-badge {
  display: inline-block;
  background: rgba(245,158,11,.15);
  color: var(--gold);
  padding: 6px 18px;
  border-radius: 50px;
  font-size: .85rem;
  font-weight: 700;
  margin-bottom: 24px;
  border: 1px solid rgba(245,158,11,.3);
  position: relative;
}
.hero-cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 16px 40px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  transition: all .3s;
  position: relative;
}
.hero-cta:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(59,130,246,.3); }

/* Section */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-section); }
.section-title {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--primary);
  text-align: center;
  margin-bottom: 16px;
}
.section-lead {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 50px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Problem Section */
.problems {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.problem-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 30px;
  transition: box-shadow .3s;
}
.problem-card:hover { box-shadow: 0 8px 30px rgba(0,0,0,.08); }
.problem-card .icon { font-size: 2rem; margin-bottom: 12px; }
.problem-card h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--primary); }

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}
.feature-card {
  background: #fff;
  border-radius: 12px;
  padding: 35px;
  box-shadow: 0 2px 15px rgba(0,0,0,.05);
  border-top: 4px solid var(--accent);
}
.feature-card h3 { font-size: 1.15rem; margin-bottom: 10px; color: var(--primary); }
.feature-tag {
  display: inline-block;
  background: rgba(59,130,246,.1);
  color: var(--accent);
  padding: 3px 12px;
  border-radius: 4px;
  font-size: .8rem;
  font-weight: 700;
  margin-bottom: 12px;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 960px;
  margin: 0 auto;
}
.price-card {
  background: #fff;
  border: 2px solid var(--border);
  border-radius: 16px;
  padding: 40px 30px;
  text-align: center;
  transition: all .3s;
  position: relative;
}
.price-card.featured {
  border-color: var(--accent);
  box-shadow: 0 10px 40px rgba(59,130,246,.15);
  transform: scale(1.03);
}
.price-card.featured::before {
  content: 'おすすめ';
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  padding: 4px 20px;
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 700;
}
.price-card h3 { font-size: 1.2rem; margin-bottom: 8px; color: var(--primary); }
.price-amount { font-size: 2.2rem; font-weight: 900; color: var(--primary); margin: 16px 0; }
.price-amount span { font-size: .9rem; font-weight: 400; color: var(--text-light); }
.price-card ul { list-style: none; text-align: left; margin: 24px 0; }
.price-card li { padding: 8px 0; border-bottom: 1px solid var(--border); font-size: .95rem; }
.price-card li::before { content: '✓ '; color: var(--accent); font-weight: 700; }
.price-btn {
  display: block;
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .3s;
}
.price-btn:hover { background: var(--accent); color: #fff; }
.price-card.featured .price-btn { background: var(--accent); }
.price-card.featured .price-btn:hover { background: var(--accent-dark); }

/* Profile */
.profile {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: start;
  max-width: 800px;
  margin: 0 auto;
}
.profile-img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 3rem;
  font-weight: 900;
}
.profile-name { font-size: 1.4rem; font-weight: 900; color: var(--primary); margin-bottom: 4px; }
.profile-title { color: var(--text-light); font-size: .95rem; margin-bottom: 16px; }
.profile-stats {
  display: flex;
  gap: 20px;
  margin-top: 16px;
}
.stat { text-align: center; }
.stat-num { font-size: 1.5rem; font-weight: 900; color: var(--accent); display: block; }
.stat-label { font-size: .8rem; color: var(--text-light); }

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, #0f172a, #1e3a5f);
  color: #fff;
  padding: 80px 0;
  text-align: center;
}
.cta-section h2 { font-size: 2rem; margin-bottom: 16px; }
.cta-section p { color: #94a3b8; margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-btn {
  display: inline-block;
  background: var(--gold);
  color: var(--primary);
  padding: 16px 48px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 900;
  transition: all .3s;
}
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(245,158,11,.3); color: var(--primary); }

/* Footer */
.site-footer {
  background: var(--bg-dark);
  color: #94a3b8;
  padding: 40px 0 24px;
  font-size: .85rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}
.footer-brand { font-size: 1.2rem; font-weight: 900; color: #fff; margin-bottom: 8px; }
.footer-links h4 { color: #fff; font-size: .9rem; margin-bottom: 12px; }
.footer-links a { display: block; color: #94a3b8; padding: 3px 0; font-size: .85rem; }
.footer-links a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 20px;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.7rem; }
  .hero { padding: 60px 0 50px; }
  .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: 20px; gap: 16px; }
  .hamburger { display: block; }
  .section { padding: 50px 0; }
  .section-title { font-size: 1.4rem; }
  .profile { grid-template-columns: 1fr; text-align: center; }
  .profile-img { margin: 0 auto; width: 150px; height: 150px; font-size: 2rem; }
  .profile-stats { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .price-card.featured { transform: none; }
  .pricing-grid { grid-template-columns: 1fr; }
}