/* ==========================================================================
   Nimgugot Studio - Premium Stylesheet (ja-JP)
   ========================================================================== */
@charset "UTF-8";

:root {
  --font-main: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Hiragino Sans', 'Meiryo', sans-serif;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-soft: #f1f5f9;
  --color-primary: #0f172a;
  --color-primary-light: #1e293b;
  --color-accent: #b45309;
  --color-accent-hover: #92400e;
  --color-accent-soft: #fef3c7;
  --color-text: #1e293b;
  --color-text-muted: #475569;
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  --color-success: #15803d;
  --color-focus: #2563eb;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --max-w: 1200px;
  --transition: all 0.25s ease-in-out;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  letter-spacing: 0.025em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-accent);
}

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

/* Accessibility */
.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--color-primary);
  color: #ffffff;
  padding: 12px 20px;
  z-index: 10000;
  border-radius: var(--radius-sm);
  font-weight: 700;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 20px;
  outline: 3px solid var(--color-accent);
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.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;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding-top: 80px;
  padding-bottom: 80px;
}

.section-muted {
  background-color: var(--color-surface-soft);
}

.section-dark {
  background-color: var(--color-primary);
  color: #ffffff;
}

.section-title-wrap {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}

.section-dark .section-tag {
  background-color: rgba(217, 119, 6, 0.2);
  color: #fcd34d;
}

.section-title {
  font-size: 2.15rem;
  font-weight: 800;
  line-height: 1.35;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section-dark .section-title {
  color: #ffffff;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-dark .section-desc {
  color: #cbd5e1;
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
}

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

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  padding: 8px 4px;
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1rem;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.btn-light {
  background-color: #ffffff;
  color: var(--color-primary);
}

.btn-light:hover {
  background-color: #f8fafc;
  color: var(--color-accent);
}

.burger-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-primary);
  cursor: pointer;
  padding: 8px;
}

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  width: 100%;
  height: calc(100vh - 80px);
  background-color: #ffffff;
  padding: 32px 24px;
  border-top: 1px solid var(--color-border);
  overflow-y: auto;
  z-index: 999;
}

.mobile-nav.open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mobile-nav-link {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  display: block;
  padding: 8px 0;
}

/* Hero Section */
.hero {
  padding: 80px 0 100px;
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.85rem;
  font-weight: 900;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.hero-lead {
  font-size: 1.15rem;
  line-height: 1.85;
  color: var(--color-text-muted);
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.hero-image-wrap {
  position: relative;
}

.hero-image-wrap img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.hero-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: #ffffff;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--color-accent);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-badge i {
  font-size: 1.75rem;
  color: var(--color-accent);
}

.hero-badge-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.hero-badge-val {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-primary);
}

/* Stats Section */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: var(--color-surface);
  padding: 32px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.stat-number {
  font-size: 2.35rem;
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1.1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.stat-sub {
  font-size: 0.825rem;
  color: var(--color-text-muted);
}

/* Steps / Workflow */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  background: #ffffff;
  padding: 32px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  position: relative;
  display: flex;
  flex-direction: column;
}

.step-num {
  font-size: 1rem;
  font-weight: 900;
  color: var(--color-accent);
  margin-bottom: 16px;
  display: inline-block;
  background: var(--color-accent-soft);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  align-self: flex-start;
}

.step-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.step-desc {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Trust Principles */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.trust-card {
  background: #ffffff;
  padding: 36px 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.trust-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.trust-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.trust-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* Services Cards */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

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

.service-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.service-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-category {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.service-card-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.service-card-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}

.service-link {
  font-weight: 700;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
}

/* Feature Asymmetric */
.feature-asym {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.feature-img-wrap img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.feature-bullets {
  list-style: none;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-bullet {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.feature-bullet i {
  color: var(--color-accent);
  font-size: 1.15rem;
  margin-top: 4px;
}

.feature-bullet-text strong {
  display: block;
  font-size: 1.05rem;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.feature-bullet-text span {
  font-size: 0.925rem;
  color: var(--color-text-muted);
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  align-items: stretch;
}

.pricing-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.pricing-card.featured {
  border: 2px solid var(--color-accent);
  box-shadow: var(--shadow-xl);
  transform: scale(1.02);
  z-index: 2;
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
}

.pricing-header {
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 24px;
  margin-bottom: 24px;
}

.pricing-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 2.45rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 4px;
}

.pricing-price span {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.pricing-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 8px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pricing-features li {
  font-size: 0.925rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-features li i {
  color: var(--color-accent);
  font-size: 0.95rem;
}

/* Contact & Form */
.form-section-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.form-label .required-mark {
  color: #dc2626;
  margin-left: 4px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
  background-color: #ffffff;
  border-color: var(--color-accent);
  outline: none;
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.form-checkbox-label input[type="checkbox"] {
  margin-top: 4px;
  width: 16px;
  height: 16px;
}

/* FAQ Accordion */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 24px;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-main);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
}

.faq-question:hover {
  background-color: var(--color-surface-soft);
}

.faq-icon {
  font-size: 1rem;
  color: var(--color-accent);
  transition: transform 0.25s ease;
}

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

.faq-answer {
  display: none;
  padding: 0 24px 24px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  border-top: 1px solid transparent;
}

.faq-item.active .faq-answer {
  display: block;
  border-top-color: var(--color-border);
}

/* Legal Documents & Content Pages */
.legal-content {
  background: #ffffff;
  padding: 48px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  margin-top: 24px;
}

.legal-content h2 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-top: 36px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-content p,
.legal-content ul {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: 16px;
}

.legal-content ul {
  padding-left: 24px;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.95rem;
}

.legal-table th,
.legal-table td {
  padding: 16px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.legal-table th {
  background-color: var(--color-surface-soft);
  color: var(--color-primary);
  font-weight: 700;
  width: 30%;
}

/* Trust Layer */
.trust-layer {
  background-color: #0b1322;
  color: #94a3b8;
  padding: 48px 0;
  border-top: 1px solid #1e293b;
  border-bottom: 1px solid #1e293b;
  font-size: 0.875rem;
  line-height: 1.75;
}

.trust-layer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: 40px;
}

.trust-layer-title {
  color: #f8fafc;
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.trust-layer-title i {
  color: var(--color-accent);
}

.trust-layer-links {
  margin-top: 12px;
  display: flex;
  gap: 16px;
}

.trust-layer-links a {
  color: #cbd5e1;
  text-decoration: underline;
}

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

/* Footer */
.site-footer {
  background-color: #080d1a;
  color: #64748b;
  padding: 40px 0 32px;
  font-size: 0.875rem;
}

.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 24px;
  list-style: none;
}

.footer-link {
  color: #94a3b8;
  font-weight: 600;
}

.footer-link:hover {
  color: #ffffff;
}

.footer-copy {
  text-align: center;
  border-top: 1px solid #1e293b;
  padding-top: 24px;
  color: #64748b;
  font-size: 0.8rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 520px;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-xl);
  z-index: 9999;
  display: none;
}

.cookie-banner.show {
  display: block;
}

.cookie-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.cookie-text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

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

.cookie-actions .btn {
  padding: 8px 16px;
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid,
  .feature-asym,
  .form-section-grid,
  .trust-layer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .stats-grid,
  .steps-grid,
  .trust-grid,
  .services-grid,
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-card.featured {
    transform: none;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .burger-btn {
    display: block;
  }
  
  .hero-content h1 {
    font-size: 2.15rem;
  }
  
  .stats-grid,
  .steps-grid,
  .trust-grid,
  .services-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .legal-content {
    padding: 24px;
  }
}