@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');

:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #d97706;
  --accent-hover: #b45309;
  --text-dark: #0f172a;
  --text-muted: #475569;
  --bg-light: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: all 0.3s ease;
  --radius: 12px;
  --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
}

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

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

body {
  font-family: var(--font-family);
  color: var(--text-dark);
  background-color: #ffffff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  z-index: 10000;
  text-decoration: none;
  border-radius: 4px;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 10px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--primary);
  font-weight: 700;
  font-size: 1.25rem;
}
.brand-logo img {
  width: 36px;
  height: 36px;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 28px;
  align-items: center;
}
.main-nav a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}
.main-nav a:hover, .main-nav a.active {
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-size: 1rem;
}
.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
}
.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}
.btn-outline {
  background-color: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background-color: var(--primary);
  color: #ffffff;
}

.burger-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary);
  cursor: pointer;
}

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  width: 100%;
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 20px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
  z-index: 999;
}
.mobile-nav.open {
  display: block;
}
.mobile-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.mobile-nav a {
  text-decoration: none;
  color: var(--text-dark);
  font-size: 1.1rem;
  font-weight: 500;
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(217, 119, 6, 0.15) 0%, rgba(255,255,255,0) 70%);
  border-radius: 50%;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero-content h1 {
  font-size: 2.5rem;
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--primary);
}
.hero-content p {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 30px;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
}

/* Stats Section */
.stats {
  padding: 40px 0;
  background: var(--primary);
  color: #ffffff;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  text-align: center;
}
.stat-item h3 {
  font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 4px;
}
.stat-item p {
  font-size: 0.95rem;
  opacity: 0.9;
}

/* How It Works Section */
.section {
  padding: 80px 0;
}
.section-title {
  text-align: center;
  margin-bottom: 50px;
}
.section-title h2 {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-title p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 30px;
}
.step-card {
  background: var(--bg-card);
  padding: 30px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  text-align: center;
  position: relative;
  transition: var(--transition);
}
.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}
.step-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(217, 119, 6, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 20px;
}
.step-number {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #cbd5e1;
}

/* Trust Principles Section */
.trust-section {
  background-color: var(--bg-light);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}
.trust-card {
  background: #ffffff;
  padding: 32px;
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
  box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}
.trust-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--primary);

}
.trust-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}
.service-img {
  height: 200px;
  width: 100%;
  object-fit: cover;
}
.service-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.service-body h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--primary);
}
.service-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

/* Features Asymmetric */
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.features-image img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.features-list {
  list-style: none;
  margin-top: 20px;
}
.features-list li {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 1.05rem;
  color: var(--text-dark);
}
.features-list i {
  color: var(--accent);
  margin-top: 4px;
}

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 40px 30px;
  text-align: center;
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.pricing-card.featured {
  border: 2px solid var(--accent);
  box-shadow: var(--shadow);
  transform: scale(1.03);
}
.pricing-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
}
.price-amount {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary);
  margin: 20px 0;
}
.pricing-features {
  list-style: none;
  margin-bottom: 30px;
  text-align: left;
  flex-grow: 1;
}
.pricing-features li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--border-color);
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Form Section */
.form-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #ffffff;
}
.form-section .section-title h2 {
  color: #ffffff;
}
.form-section .section-title p {
  color: #cbd5e1;
}
.lead-form-container {
  max-width: 650px;
  margin: 0 auto;
  background: #ffffff;
  color: var(--text-dark);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.95rem;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}
.form-control:focus {
  border-color: var(--accent);
  outline: none;
}
.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.checkbox-group input {
  margin-top: 4px;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  background: #ffffff;
}
.faq-question {
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  background: none;
  border: none;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  display: none;
  font-size: 1rem;
}
.faq-item.active .faq-answer {
  display: block;
}

/* Trust Layer (Global) */
.trust-layer {
  background: #f1f5f9;
  border-top: 1px solid var(--border-color);
  padding: 30px 0;
  margin-top: 60px;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.trust-layer-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.trust-layer-icon {
  font-size: 2rem;
  color: var(--accent);
  flex-shrink: 0;
}
.trust-layer-content h4 {
  color: var(--primary);
  margin-bottom: 6px;
  font-size: 1rem;
}
.trust-disclaimer {
  margin-top: 8px;
  font-size: 0.8rem;
  opacity: 0.8;
}

/* Footer */
.site-footer {
  background-color: var(--primary);
  color: #94a3b8;
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-col h3, .footer-col h4 {
  color: #ffffff;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  color: #94a3b8;
  text-decoration: none;
  transition: var(--transition);
}
.footer-col a:hover {
  color: #ffffff;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 500px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  border-radius: var(--radius);
  padding: 20px;
  z-index: 10000;
  display: none;
}
.cookie-banner.show {
  display: block;
}
.cookie-banner p {
  font-size: 0.85rem;
  color: var(--text-dark);
  margin-bottom: 16px;
}
.cookie-btns {
  display: flex;
  gap: 10px;
}
.cookie-btns button {
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: 6px;
  cursor: pointer;
  border: none;
}

/* Responsive Rules */
@media (max-width: 992px) {
  .hero-grid, .features-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .burger-btn { display: block; }
  .hero-content h1 { font-size: 1.8rem; }
  .pricing-card.featured { transform: none; }
}