/* ==========================================================================
   Vulvuxsyt Studio - Japan Master Stylesheet
   Typography: Noto Sans JP | WCAG AA Compliant | Responsive Mobile-First
   ========================================================================== */

:root {
  --color-primary: #0f1f38;
  --color-primary-light: #1e3a5f;
  --color-accent: #c8963e;
  --color-accent-hover: #b07f2b;
  --color-accent-light: #f9f4ea;
  --color-text-main: #24292f;
  --color-text-muted: #57606a;
  --color-bg-body: #f8f9fb;
  --color-bg-card: #ffffff;
  --color-border: #e1e4e8;
  --color-success: #1a7f37;
  --font-family-base: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --transition-speed: 0.28s;
  --container-width: 1180px;
  --shadow-subtle: 0 4px 16px rgba(15, 31, 56, 0.06);
  --shadow-hover: 0 12px 28px rgba(15, 31, 56, 0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

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

@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;
  }
}

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

body {
  font-family: var(--font-family-base);
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-text-main);
  background-color: var(--color-bg-body);
  -webkit-font-smoothing: antialiased;
}

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

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

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

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.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;
}

.skip-link {
  position: absolute;
  top: -60px;
  left: 16px;
  background: var(--color-accent);
  color: #ffffff;
  padding: 12px 20px;
  font-weight: 700;
  z-index: 99999;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
}

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

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

.brand-tagline-badge {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  font-weight: 400;
  display: block;
  line-height: 1.2;
}

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

.main-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-main);
  padding: 6px 0;
  position: relative;
}

.main-nav a:hover, .main-nav a.active {
  color: var(--color-accent);
}

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

.nav-cta-btn {
  background-color: var(--color-accent);
  color: #ffffff !important;
  padding: 10px 22px !important;
  border-radius: var(--radius-sm);
  font-weight: 700 !important;
  transition: background-color var(--transition-speed) ease;
}

.nav-cta-btn:hover {
  background-color: var(--color-accent-hover) !important;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--color-primary);
  cursor: pointer;
  padding: 8px;
}

/* ==========================================================================
   Buttons & UI Elements
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 30px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  border: 2px solid transparent;
  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(-2px);
  box-shadow: 0 6px 16px rgba(200, 150, 62, 0.3);
}

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

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

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

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

.badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 50px;
  background-color: var(--color-accent-light);
  color: var(--color-accent-hover);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #0b172a 0%, #172a45 60%, #1f3b60 100%);
  color: #ffffff;
  padding: 90px 0 100px;
  overflow: hidden;
}

.hero-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.07;
  background-image: radial-gradient(#ffffff 1.5px, transparent 1.5px);
  background-size: 28px 28px;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content h1 {
  font-size: 2.5rem;
  line-height: 1.35;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.hero-content h1 span {
  color: var(--color-accent);
}

.hero-lead {
  font-size: 1.12rem;
  line-height: 1.85;
  color: #e2e8f0;
  margin-bottom: 34px;
}

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

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

.hero-image-wrap img {
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  border: 3px solid rgba(255, 255, 255, 0.12);
}

.hero-floating-card {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: #ffffff;
  color: var(--color-text-main);
  padding: 18px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-hover);
  display: flex;
  align-items: center;
  gap: 14px;
}

.hero-floating-card i {
  font-size: 2rem;
  color: var(--color-accent);
}

.hero-floating-card strong {
  display: block;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.hero-floating-card span {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Stats Banner
   ========================================================================== */
.stats-section {
  background-color: #ffffff;
  padding: 45px 0;
  border-bottom: 1px solid var(--color-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.stat-item h3 span {
  color: var(--color-accent);
}

.stat-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ==========================================================================
   General Section Layouts
   ========================================================================== */
.section {
  padding: 85px 0;
}

.section-alt {
  background-color: #ffffff;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 55px;
}

.section-header h2 {
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  line-height: 1.35;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

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

.step-card {
  background-color: var(--color-bg-card);
  padding: 36px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-subtle);
  position: relative;
  transition: transform var(--transition-speed) ease;
}

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

.step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-accent-light);
  color: var(--color-accent-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.step-card h3 {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.step-card p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ==========================================================================
   Trust & Methodology Block
   ========================================================================== */
.trust-principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.principle-card {
  background: #ffffff;
  padding: 36px 30px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-subtle);
}

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

.principle-card h3 {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 14px;
}

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

/* ==========================================================================
   Services Grid
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

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

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.service-img-wrap {
  height: 240px;
  overflow: hidden;
}

.service-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.service-card:hover .service-img-wrap img {
  transform: scale(1.04);
}

.service-body {
  padding: 30px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.service-body h3 {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.service-body p {
  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: 8px;
}

.service-link:hover {
  color: var(--color-accent-hover);
}

/* ==========================================================================
   Features / Asymmetric Section
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

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

.features-list {
  list-style: none;
  margin-top: 24px;
}

.features-list li {
  position: relative;
  padding-left: 36px;
  margin-bottom: 20px;
  font-size: 1rem;
  color: var(--color-text-main);
}

.features-list li i {
  position: absolute;
  left: 0;
  top: 4px;
  color: var(--color-success);
  font-size: 1.2rem;
}

/* ==========================================================================
   Pricing Section
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  align-items: stretch;
}

.pricing-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  border: 2px solid var(--color-accent);
  box-shadow: 0 12px 32px rgba(200, 150, 62, 0.18);
  transform: translateY(-8px);
}

.pricing-badge-popular {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #ffffff;
  padding: 4px 18px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

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

.pricing-plan-name {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.pricing-amount {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-primary);
}

.pricing-amount span {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.92rem;
  color: var(--color-text-main);
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-features li i {
  color: var(--color-accent);
  font-size: 0.9rem;
}

/* ==========================================================================
   Form Section (Lead Capture)
   ========================================================================== */
.form-section {
  background: linear-gradient(135deg, #0f1f38 0%, #1a365d 100%);
  color: #ffffff;
}

.form-box {
  background: #ffffff;
  color: var(--color-text-main);
  border-radius: var(--radius-lg);
  padding: 45px;
  max-width: 760px;
  margin: 0 auto;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.form-box h3 {
  font-size: 1.6rem;
  color: var(--color-primary);
  margin-bottom: 8px;
  text-align: center;
}

.form-box-sub {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: 30px;
}

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

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition-speed) ease;
  background-color: #fafbfc;
}

.form-group input:focus, .form-group textarea:focus {
  border-color: var(--color-accent);
  background-color: #ffffff;
}

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.form-consent input[type="checkbox"] {
  margin-top: 4px;
  accent-color: var(--color-accent);
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   Accordion / FAQ
   ========================================================================== */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
}

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

.faq-trigger {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 22px 26px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-trigger i {
  color: var(--color-accent);
  transition: transform var(--transition-speed) ease;
}

.faq-trigger[aria-expanded="true"] i {
  transform: rotate(180deg);
}

.faq-content {
  padding: 0 26px 24px;
  font-size: 0.98rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  display: none;
}

.faq-content.open {
  display: block;
}

/* ==========================================================================
   Trust Layer (Legal & Corporate Transparency)
   ========================================================================== */
.trust-layer {
  background-color: #f1f4f8;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 36px 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.trust-layer-title {
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.trust-layer-details {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
}

.trust-disclaimer {
  font-size: 0.8rem;
  color: #768390;
  margin-top: 12px;
  border-top: 1px dashed var(--color-border);
  padding-top: 10px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: #0b172a;
  color: #cbd5e1;
  padding: 70px 0 35px;
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.05rem;
  margin-bottom: 20px;
  font-weight: 700;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col ul li a {
  color: #94a3b8;
}

.footer-col ul li a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  text-align: center;
  font-size: 0.82rem;
  color: #64748b;
}

/* ==========================================================================
   Cookie Banner
   ========================================================================== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(15, 31, 56, 0.97);
  backdrop-filter: blur(8px);
  color: #ffffff;
  padding: 20px;
  z-index: 99999;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  display: none;
}

.cookie-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
}

.cookie-text {
  font-size: 0.88rem;
  line-height: 1.6;
}

.cookie-text a {
  color: var(--color-accent);
  text-decoration: underline;
}

.cookie-buttons {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

.btn-cookie-accept {
  background-color: var(--color-accent);
  color: #ffffff;
  border: none;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
}

.btn-cookie-decline {
  background-color: transparent;
  color: #cbd5e1;
  border: 1px solid #475569;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ==========================================================================
   Page Headers (Subpages)
   ========================================================================== */
.subpage-hero {
  background: linear-gradient(135deg, #0b172a 0%, #1a365d 100%);
  color: #ffffff;
  padding: 60px 0;
  text-align: center;
}

.subpage-hero h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.subpage-hero p {
  color: #cbd5e1;
  font-size: 1rem;
  max-width: 680px;
  margin: 0 auto;
}

.legal-content {
  background: #ffffff;
  padding: 60px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-subtle);
  margin: 50px auto;
  max-width: 920px;
}

.legal-content h2 {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin-top: 36px;
  margin-bottom: 16px;
  border-left: 4px solid var(--color-accent);
  padding-left: 12px;
}

.legal-content p, .legal-content ul {
  font-size: 0.95rem;
  color: var(--color-text-main);
  line-height: 1.85;
  margin-bottom: 18px;
}

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

.legal-table th, .legal-table td {
  border: 1px solid var(--color-border);
  padding: 14px 18px;
  font-size: 0.92rem;
  text-align: left;
}

.legal-table th {
  background-color: #f8f9fa;
  color: var(--color-primary);
  width: 28%;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-floating-card {
    position: static;
    margin-top: 20px;
    display: inline-flex;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .trust-principles-grid, .pricing-grid {
    grid-template-columns: 1fr;
  }
  .pricing-card.featured {
    transform: none;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .trust-layer-details {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  .main-nav {
    position: fixed;
    top: 76px;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }
  .main-nav.open {
    max-height: 480px;
  }
  .main-nav ul {
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    align-items: flex-start;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .form-box {
    padding: 28px 20px;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .cookie-inner {
    flex-direction: column;
    text-align: center;
  }
  .legal-content {
    padding: 28px 18px;
  }
}