:root {
  --primary: #0f172a;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --bg-light: #f8fafc;
  --text-main: #334155;
  --text-light: #64748b;
  --white: #ffffff;
  --border: #e2e8f0;
  --transition: all 0.3s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text-main);
  background-color: var(--white);
  line-height: 1.8;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.skip-link {
  position: absolute; top: -40px; left: 0; background: var(--accent); color: var(--white);
  padding: 8px; z-index: 100; transition: top 0.3s;
}
.skip-link:focus { top: 0; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}
header {
  position: sticky; top: 0; background: var(--white); border-bottom: 1px solid var(--border);
  z-index: 1000; box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.nav-container {
  max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between;
  align-items: center; padding: 1rem 2rem;
}
.logo { font-size: 1.25rem; font-weight: 700; color: var(--primary); display: flex; align-items: center; gap: 0.5rem; }
.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { font-size: 0.95rem; font-weight: 500; color: var(--text-main); transition: var(--transition); }
.nav-links a:hover { color: var(--accent); }
.btn {
  display: inline-block; background: var(--accent); color: var(--white); padding: 0.75rem 1.75rem;
  border-radius: 6px; font-weight: 600; transition: var(--transition); border: none; cursor: pointer; text-align: center;
}
.btn:hover { background: var(--accent-hover); }
.burger { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--primary); }

/* Hero Section */
.hero {
  padding: 6rem 2rem; background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  display: flex; align-items: center; min-height: 80vh;
}
.hero-grid {
  max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.hero h1 { font-size: 2.5rem; font-weight: 700; color: var(--primary); margin-bottom: 1.5rem; line-height: 1.3; }
.hero p { font-size: 1.1rem; color: var(--text-light); margin-bottom: 2rem; }
.hero-img img { width: 100%; border-radius: 12px; box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1); }

/* Statistics */
.stats { background: var(--primary); color: var(--white); padding: 4rem 2rem; }
.stats-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
.stat-item h3 { font-size: 2.5rem; font-weight: 700; color: #38bdf8; margin-bottom: 0.5rem; }
.stat-item p { color: #cbd5e1; font-size: 0.95rem; }

/* Sections */
section { padding: 5rem 2rem; }
.container { max-width: 1200px; margin: 0 auto; }
.section-title { text-align: center; font-size: 2rem; font-weight: 700; color: var(--primary); margin-bottom: 1rem; }
.section-desc { text-align: center; color: var(--text-light); max-width: 700px; margin: 0 auto 3rem auto; }

/* Steps / How it works */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.step-card { background: var(--bg-light); padding: 2rem; border-radius: 8px; border: 1px solid var(--border); position: relative; }
.step-num { font-size: 2rem; font-weight: 700; color: var(--accent); margin-bottom: 1rem; }
.step-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--primary); }

/* Services */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.service-card { background: var(--white); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; transition: var(--transition); }
.service-card:hover { transform: translateY(-5px); box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05); }
.service-img { height: 200px; width: 100%; object-fit: cover; }
.service-content { padding: 1.5rem; }
.service-content h3 { font-size: 1.25rem; margin-bottom: 0.75rem; color: var(--primary); }

/* Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; align-items: stretch; }
.pricing-card { background: var(--white); border: 1px solid var(--border); border-radius: 8px; padding: 2.5rem; display: flex; flex-direction: column; position: relative; }
.pricing-card.featured { border-color: var(--accent); box-shadow: 0 10px 25px -5px rgba(37,99,235,0.15); }
.badge { position: absolute; top: -12px; right: 2rem; background: var(--accent); color: var(--white); padding: 0.25rem 0.75rem; font-size: 0.8rem; border-radius: 4px; font-weight: 600; }
.price { font-size: 2rem; font-weight: 700; color: var(--primary); margin: 1.5rem 0; }
.pricing-features { margin-bottom: 2rem; flex-grow: 1; }
.pricing-features li { padding: 0.5rem 0; border-bottom: 1px solid var(--border); color: var(--text-light); font-size: 0.95rem; }

/* Form */
.form-section { background: var(--bg-light); }
.form-container { max-width: 600px; margin: 0 auto; background: var(--white); padding: 3rem; border-radius: 12px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05); border: 1px solid var(--border); }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: 0.5rem; color: var(--primary); }
.form-group input, .form-group textarea { width: 100%; padding: 0.75rem 1rem; border: 1px solid var(--border); border-radius: 6px; font-family: inherit; font-size: 1rem; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.checkbox-group { display: flex; align-items: flex-start; gap: 0.75rem; margin-bottom: 1.5rem; }
.checkbox-group input { width: auto; margin-top: 0.3rem; }

/* Trust Layer & Footer */
.trust-layer { background: #f1f5f9; padding: 2.5rem 2rem; border-top: 1px solid var(--border); font-size: 0.9rem; color: var(--text-light); }
.trust-content { max-width: 1200px; margin: 0 auto; line-height: 1.6; }
footer { background: var(--primary); color: #cbd5e1; padding: 3rem 2rem; text-align: center; font-size: 0.9rem; }
.footer-links { display: flex; justify-content: center; gap: 2rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.footer-links a { color: #cbd5e1; transition: var(--transition); }
.footer-links a:hover { color: var(--white); }

/* Cookie Banner */
.cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0; background: var(--primary); color: var(--white);
  padding: 1rem 2rem; display: flex; justify-content: space-between; align-items: center; z-index: 9999;
  box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
}
.cookie-banner p { font-size: 0.9rem; max-width: 800px; }
.cookie-btns { display: flex; gap: 1rem; }
.btn-secondary { background: transparent; border: 1px solid var(--white); color: var(--white); padding: 0.5rem 1rem; border-radius: 6px; cursor: pointer; }
.btn-secondary:hover { background: rgba(255,255,255,0.1); }

/* Responsive */
@media (max-width: 968px) {
  .hero-grid, .services-grid, .pricing-grid, .steps-grid, .stats-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--white); flex-direction: column; padding: 1.5rem; border-bottom: 1px solid var(--border); box-shadow: 0 10px 15px rgba(0,0,0,0.05); }
  .nav-links.active { display: flex; }
  .burger { display: block; }
}