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

:root {
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-primary: #0f172a;
  --text-muted: #475569;
  --color-primary: #1e3a8a;
  --color-primary-hover: #1e40af;
  --color-accent: #0d9488;
  --color-accent-gold: #d97706;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.12);
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Noto Sans JP', sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 10px;
  background: var(--color-primary);
  color: #fff;
  padding: 10px 16px;
  z-index: 10000;
  text-decoration: none;
  border-radius: 6px;
  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);
  white-space: nowrap;
  border: 0;
}

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

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

/* Header */
.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-img {
  width: 40px;
  height: 40px;
}

.nav-menu {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

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

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  color: #ffffff;
  padding: 90px 0;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(13,148,136,0.2) 0%, rgba(0,0,0,0) 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-title {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: #cbd5e1;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
}
.btn-primary:hover {
  background-color: #0f766e;
}

.btn-secondary {
  background-color: transparent;
  color: #ffffff;
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-secondary:hover {
  background-color: rgba(255,255,255,0.1);
  border-color: #ffffff;
}

.hero-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
}

/* Stats Section */
.stats-section {
  background-color: #ffffff;
  padding: 50px 0;
  border-bottom: 1px solid var(--border-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Sections General */
.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-desc {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px auto;
  color: var(--text-muted);
}

/* Grid & Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-icon {
  font-size: 2.2rem;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

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

.service-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

/* Feature Asymmetric */
.feature-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  background: #ffffff;
  border-radius: var(--radius);
  padding: 40px;
  border: 1px solid var(--border-color);
}

.feature-img {
  width: 100%;
  height: 100%;
  max-height: 380px;
  object-fit: cover;
  border-radius: 8px;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

.feature-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: var(--text-muted);
}

.feature-list li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* Pricing */
.pricing-card {
  background: #ffffff;
  border-radius: var(--radius);
  padding: 40px 30px;
  border: 1px solid var(--border-color);
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border: 2px solid var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
}

.badge-popular {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent-gold);
  color: #ffffff;
  padding: 4px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 20px;
}

.price-amount {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 20px 0;
}

.price-features {
  list-style: none;
  margin: 20px 0 30px 0;
  text-align: left;
  flex-grow: 1;
}

.price-features li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--border-color);
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Form Section */
.form-section {
  background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
  color: #ffffff;
  border-radius: var(--radius);
  padding: 60px 40px;
  margin: 60px 0;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group.full {
  grid-column: span 2;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: #e2e8f0;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: 6px;
  border: 1px solid #334155;
  background-color: #0f172a;
  color: #ffffff;
  font-size: 1rem;
  font-family: inherit;
}

.form-control:focus {
  border-color: var(--color-accent);
  outline: none;
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: #cbd5e1;
}

.checkbox-group a {
  color: #38bdf8;
  text-decoration: underline;
}

/* FAQ Accordion */
.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 16px;
  overflow: hidden;
}

.faq-btn {
  width: 100%;
  padding: 20px;
  text-align: left;
  background: none;
  border: none;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-content {
  padding: 0 20px 20px 20px;
  color: var(--text-muted);
  display: none;
}

.faq-item.active .faq-content {
  display: block;
}

.faq-item.active .faq-btn i {
  transform: rotate(180deg);
}

/* Trust Layer */
.trust-layer {
  background-color: #f1f5f9;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 30px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.trust-layer-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.trust-layer-title {
  font-weight: 700;
  color: var(--text-primary);
}

/* Footer */
.site-footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 60px 0 30px 0;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1rem;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 30px;
  text-align: center;
  font-size: 0.8rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 500px;
  background-color: #0f172a;
  color: #ffffff;
  padding: 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  display: none;
  font-size: 0.85rem;
}

.cookie-actions {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

/* Media Queries */
@media (max-width: 992px) {
  .hero-grid, .feature-box, .grid-3, .grid-2, .pricing-card.featured {
    grid-template-columns: 1fr;
    transform: none;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: block;
  }
  .nav-menu {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: #ffffff;
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow-md);
  }
  .nav-menu.open {
    display: flex;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-group.full {
    grid-column: span 1;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

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