/* =========================================
   EC Catcher - Common Styles
   ========================================= */

/* CSS Variables */
:root {
  /* Brand Colors */
  --color-primary: #3B82F6;
  --color-primary-dark: #2563EB;
  --color-primary-light: #60A5FA;
  --color-accent: #F7931E;
  --color-accent-dark: #E07D0A;
  
  /* Neutrals */
  --color-text: #1F2937;
  --color-text-light: #6B7280;
  --color-text-muted: #9CA3AF;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F9FAFB;
  --color-bg-dark: #111827;
  --color-border: #E5E7EB;
  
  /* Mall Colors */
  --color-rakuten: #BF0000;
  --color-amazon: #FF9900;
  --color-amazon-bg: #232F3E;
  --color-yahoo: #FF0033;
  
  /* Typography */
  --font-main: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Noto Sans JP', sans-serif;
  
  /* Spacing */
  --section-padding: 80px 0;
  --container-width: 1200px;
  --container-padding: 24px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
}

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

/* Container */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* =========================================
   Header
   ========================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

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

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: var(--color-text-light);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

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

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: var(--transition-fast);
}

/* =========================================
   Buttons
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-border);
  color: var(--color-text);
}

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

.btn-accent:hover {
  background: var(--color-accent-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

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

/* =========================================
   Section Styles
   ========================================= */
.section {
  padding: var(--section-padding);
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-dark {
  background: var(--color-bg-dark);
  color: white;
}

.section-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
}

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

.section-dark .section-title,
.section-gradient .section-title {
  color: white;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-light);
  text-align: center;
  margin-bottom: 48px;
}

.section-dark .section-subtitle,
.section-gradient .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
  padding: 260px 0 200px;
  min-height: auto;
  display: flex;
  align-items: center;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-bg-alt);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
  border: 1px solid var(--color-border);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--color-text);
}

.hero-title-accent {
  color: var(--color-primary);
  white-space: nowrap;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--color-text-light);
  margin-bottom: 28px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-malls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mall-badge {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
}

.mall-rakuten {
  background: var(--color-rakuten);
  color: white;
}

.mall-amazon {
  background: var(--color-amazon-bg);
  color: var(--color-amazon);
}

.mall-yahoo {
  background: var(--color-yahoo);
  color: white;
}

.hero-visual {
  position: relative;
}

.hero-screenshot {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
}

/* =========================================
   Features Grid
   ========================================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  position: relative;
  background: white;
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.feature-description {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* =========================================
   Screenshots Carousel
   ========================================= */
.screenshots-wrapper {
  position: relative;
  overflow: hidden;
}

.screenshots-track {
  display: flex;
  gap: 24px;
  transition: transform var(--transition-slow);
}

.screenshot-item {
  flex: 0 0 280px;
  text-align: center;
}

.screenshot-item img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin-bottom: 16px;
  border: 1px solid var(--color-border);
}

.screenshot-caption {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

.carousel-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.carousel-dot.active {
  background: var(--color-primary);
  transform: scale(1.2);
}

/* =========================================
   Pricing
   ========================================= */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 2px solid var(--color-border);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
}

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

.pricing-card.featured {
  border-color: var(--color-primary);
  transform: scale(1.02);
}

.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
}

.pricing-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-light);
}

.pricing-description {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
}

.pricing-features li {
  padding: 10px 0;
  font-size: 0.95rem;
  color: var(--color-text);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.pricing-features li::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 600;
  flex-shrink: 0;
}

.pricing-note {
  text-align: center;
  margin-top: 32px;
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* =========================================
   Steps
   ========================================= */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.step-item {
  text-align: center;
  position: relative;
}

.step-number {
  width: 64px;
  height: 64px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 20px;
}

.step-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.step-description {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

/* =========================================
   CTA Section
   ========================================= */
.cta-section {
  text-align: center;
  padding: 80px 0;
}

.cta-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-description {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 32px;
}

/* =========================================
   Footer
   ========================================= */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: white;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.footer-logo img {
  width: 36px;
  height: 36px;
}

.footer-description {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-company {
  font-size: 0.85rem;
  line-height: 1.8;
}

.footer-heading {
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 20px;
}

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

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
}

.footer-legal {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 12px;
  line-height: 1.8;
}

.footer-copyright {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* =========================================
   Legal Pages
   ========================================= */
.legal-page {
  padding: 120px 0 80px;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}

.legal-updated {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 48px;
}

.legal-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text);
}

.legal-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--color-text);
}

.legal-content p {
  margin-bottom: 16px;
  color: var(--color-text);
}

.legal-content ul, .legal-content ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.legal-content li {
  margin-bottom: 8px;
  color: var(--color-text);
}

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

.legal-content th,
.legal-content td {
  padding: 12px 16px;
  text-align: left;
  border: 1px solid var(--color-border);
}

.legal-content th {
  background: var(--color-bg-alt);
  font-weight: 600;
}

/* Contact Page */
.contact-section {
  padding: 120px 0 80px;
}

.contact-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact-info {
  background: var(--color-bg-alt);
  padding: 40px;
  border-radius: var(--radius-lg);
  margin-top: 32px;
}

.contact-item {
  margin-bottom: 24px;
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-label {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.contact-value {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text);
}

.contact-value a {
  color: var(--color-primary);
}

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-malls {
    justify-content: center;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }
  
  .pricing-card.featured {
    transform: none;
  }
  
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }
  
  .header-inner {
    height: 64px;
  }
  
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
  }
  
  .nav.active {
    display: flex;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .header-cta .btn {
    display: none;
  }
  
  .hero {
    padding: 96px 0 48px;
    min-height: auto;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .legal-title {
    font-size: 1.5rem;
  }
}

/* =========================================
   Utilities
   ========================================= */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mb-5 { margin-bottom: 48px; }

/* =========================================
   Features Category (Plan-grouped)
   ========================================= */
.features-category {
  margin-bottom: 64px;
}
.features-category:last-child {
  margin-bottom: 0;
}
.features-category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.features-category-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
}
.features-category-badge {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-free {
  background: #E0F2FE;
  color: #0369A1;
}
.badge-pro {
  background: #FEF3C7;
  color: #B45309;
}
.badge-business {
  background: #F3E8FF;
  color: #7C3AED;
}
.feature-card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 600;
}
.feature-plan-note {
  display: block;
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Feature Card - Mall Badges (small) */
.feature-malls {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  flex-wrap: wrap;
}
.mall-badge-sm {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.6;
}
.mall-badge-sm.mall-rakuten {
  background: var(--color-rakuten);
  color: white;
}
.mall-badge-sm.mall-amazon {
  background: var(--color-amazon-bg);
  color: var(--color-amazon);
}
.mall-badge-sm.mall-yahoo {
  background: var(--color-yahoo);
  color: white;
}

/* =========================================
   Hero Malls Label
   ========================================= */
.hero-malls-label {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

/* =========================================
   Agent Section
   ========================================= */
.agent-check-list {
  list-style: none;
  margin-bottom: 24px;
  padding: 0;
}
.agent-check-list li {
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 12px;
}
.agent-check-mark {
  color: var(--color-primary);
  font-weight: 600;
}
.agent-note {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* =========================================
   Use Cases Grid (2-column)
   ========================================= */
.usecases-grid {
  grid-template-columns: repeat(2, 1fr);
  max-width: 900px;
  margin: 0 auto;
}

/* =========================================
   Comparison Table
   ========================================= */
.comparison-table-wrapper {
  max-width: 800px;
  margin: 40px auto 0;
  overflow-x: auto;
}
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.comparison-table th,
.comparison-table td {
  padding: 12px 16px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}
.comparison-table th {
  font-weight: 600;
  background: var(--color-bg-alt);
}
.comparison-table th:first-child,
.comparison-table td:first-child {
  text-align: left;
  font-weight: 500;
}
.comparison-table .highlight-col {
  background: rgba(124, 58, 237, 0.04);
}

/* =========================================
   FAQ Section
   ========================================= */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 24px 0;
}
.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}
.faq-question {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-question::after {
  content: '+';
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-text-light);
  flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-item.open .faq-question::after {
  content: '-';
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item.open .faq-answer {
  max-height: 500px;
}
.faq-answer p {
  padding-top: 12px;
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* =========================================
   Responsive (Additional)
   ========================================= */
@media (max-width: 1024px) {
  .usecases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .usecases-grid {
    grid-template-columns: 1fr;
  }
  .comparison-table {
    font-size: 0.8rem;
  }
  .comparison-table th,
  .comparison-table td {
    padding: 8px 10px;
  }
}
/* =========================================
   EC Catcher LP v2.0 - 追加CSS
   既存 styles.css の末尾に追記
   ========================================= */

/* =========================================
   CSS Variables (追加)
   ========================================= */
:root {
  --color-earlybird: #DC2626;
  --color-earlybird-dark: #B91C1C;
  --color-earlybird-bg: linear-gradient(135deg, #DC2626 0%, #991B1B 100%);
  --color-success: #059669;
  --color-success-light: #D1FAE5;
  --earlybird-bar-height: 44px;
}

/* =========================================
   Earlybird Announcement Bar
   ========================================= */
.earlybird-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  background: var(--color-earlybird-bg);
  color: white;
  padding: 0;
  height: var(--earlybird-bar-height);
  display: flex;
  align-items: center;
}

.earlybird-bar .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: 100%;
}

.earlybird-bar p {
  font-size: 0.875rem;
  font-weight: 500;
  margin: 0;
  line-height: 1.4;
}

.earlybird-bar strong {
  font-weight: 700;
  font-size: 1rem;
}

.earlybird-bar a {
  color: white;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  white-space: nowrap;
}

.earlybird-bar a:hover {
  color: rgba(255, 255, 255, 0.85);
}

.earlybird-close {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.earlybird-close:hover {
  color: white;
}

/* Header offset for earlybird bar */
body.has-earlybird .header {
  top: var(--earlybird-bar-height);
}

body.has-earlybird .hero {
  padding-top: calc(130px + var(--earlybird-bar-height));
}

/* When bar is closed */
body:not(.has-earlybird) .earlybird-bar {
  display: none;
}

/* =========================================
   Painpoints Section
   ========================================= */
#painpoints {
  padding-top: 56px;
}

.painpoints-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.painpoint-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

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

.painpoint-pain {
  padding: 32px 28px 24px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.painpoint-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.painpoint-text {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.8;
}

.painpoint-solution {
  padding: 24px 28px 32px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.painpoint-arrow {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
  line-height: 1.7;
}

.painpoint-resolve {
  font-size: 0.95rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  line-height: 1.7;
}

/* =========================================
   Pricing - 4 Column Layout
   ========================================= */
.pricing-grid {
  grid-template-columns: repeat(4, 1fr);
  max-width: 1200px;
}

/* =========================================
   Pricing - Earlybird Display (強化版)
   ========================================= */

.pricing-original {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  display: inline-block;
}

/* 太い赤の取り消し線 */
.pricing-original::after {
  content: '';
  position: absolute;
  left: -4px;
  right: -4px;
  top: 50%;
  height: 3px;
  background: var(--color-earlybird);
  transform: rotate(-8deg);
  border-radius: 2px;
}

.pricing-dual-arrow {
  font-size: 1.25rem;
  color: var(--color-earlybird);
  font-weight: 700;
}

.pricing-price-original {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-bottom: 0;
}

.pricing-price-earlybird {
  color: var(--color-earlybird);
}

.pricing-price-earlybird span {
  color: var(--color-text-light);
}

.pricing-earlybird-badge {
  display: inline-block;
  background: var(--color-earlybird);
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

/* =========================================
   30%OFF Ribbon Badge
   ========================================= */
.pricing-ribbon {
  position: absolute;
  top: 20px;
  left: -8px;
  z-index: 2;
}

.pricing-ribbon-inner {
  position: relative;
  background: var(--color-earlybird-bg);
  color: white;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 12px 6px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
  letter-spacing: 0.02em;
}

/* Ribbon fold effect */
.pricing-ribbon-inner::after {
  display: none;
}

/* Star decoration on ribbon */
.pricing-ribbon-star {
  display: inline-block;
  margin-right: 4px;
  font-size: 0.7rem;
}

/* =========================================
   Pricing - Enterprise Card
   ========================================= */
.pricing-card-enterprise {
  border-color: var(--color-text-muted);
  background: linear-gradient(180deg, #FAFAFA 0%, #FFFFFF 100%);
}

.pricing-card-enterprise .pricing-name {
  color: var(--color-text);
}

.pricing-price-from {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-light);
}

/* =========================================
   Use Cases Timeline
   ========================================= */
.usecase-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
}

/* 横ラインの接続線 */
.usecase-timeline::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(12.5% + 16px);
  right: calc(12.5% + 16px);
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}

.usecase-step {
  text-align: center;
  padding: 0 16px;
  position: relative;
}

.usecase-time {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px white, 0 0 0 8px var(--color-border);
}

/* 最後のカード（夕方）のアクセント色 */
.usecase-step:last-child .usecase-time {
  background: var(--color-accent);
  box-shadow: 0 0 0 6px white, 0 0 0 8px rgba(247, 147, 30, 0.3);
}

.usecase-content {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  transition: all var(--transition-base);
}

.usecase-content:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.usecase-step:last-child .usecase-content:hover {
  border-color: var(--color-accent);
}

.usecase-heading {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.5;
}

.usecase-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Responsive - Timeline */
@media (max-width: 1024px) {
  .usecase-timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 24px;
    max-width: 700px;
  }

  .usecase-timeline::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .usecase-timeline {
    grid-template-columns: 1fr;
    max-width: 480px;
    gap: 32px;
  }

  .usecase-step {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    text-align: left;
    padding: 0;
  }

  .usecase-time {
    flex-shrink: 0;
    margin-bottom: 0;
    box-shadow: 0 0 0 4px white, 0 0 0 6px var(--color-border);
  }

  .usecase-content {
    padding: 20px 16px;
  }
}

/* =========================================
   Comparison Table - 5 Columns
   ========================================= */
.comparison-table-wrapper {
  max-width: 1000px;
}

.comparison-table .highlight-col-biz {
  background: rgba(59, 130, 246, 0.04);
}

.comparison-table .highlight-col-ent {
  background: rgba(107, 114, 128, 0.04);
}

/* Mall note in comparison table */
.comparison-mall-note {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  display: block;
  margin-top: 2px;
}

/* =========================================
   ROI Section
   ========================================= */
.roi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.roi-card {
  background: white;
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all var(--transition-base);
}

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

.roi-number {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  line-height: 1.2;
}

.roi-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.roi-description {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* =========================================
   Hero Slideshow Fade
   ========================================= */
.hero-slideshow {
  position: relative;
  width: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.hero-slide.active {
  position: relative;
  opacity: 1;
}

/* =========================================
   Hero Earlybird CTA (Secondary)
   ========================================= */
.btn-earlybird {
  background: rgba(220, 38, 38, 0.08);
  color: var(--color-earlybird);
  border: 2px solid var(--color-earlybird);
  font-weight: 600;
}

.btn-earlybird:hover {
  background: var(--color-earlybird);
  color: white;
}

/* =========================================
   Responsive - Earlybird Bar
   ========================================= */
@media (max-width: 768px) {
  :root {
    --earlybird-bar-height: 56px;
  }

  .earlybird-bar p {
    font-size: 0.75rem;
    text-align: center;
    line-height: 1.3;
  }

  .earlybird-bar strong {
    font-size: 0.85rem;
  }

  body.has-earlybird .hero {
    padding-top: calc(260px + var(--earlybird-bar-height));
  }
}

/* =========================================
   Responsive - Painpoints
   ========================================= */
@media (max-width: 1024px) {
  .painpoints-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 700px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .painpoints-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
  }
}

/* =========================================
   Responsive - Pricing 4 Columns
   ========================================= */
@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 700px;
  }
}

@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .pricing-ribbon-inner {
    font-size: 0.7rem;
    padding: 5px 12px 5px 10px;
  }

  .pricing-original {
    font-size: 1.4rem;
  }
}

/* =========================================
   Responsive - ROI
   ========================================= */
@media (max-width: 1024px) {
  .roi-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
}

/* =========================================
   Responsive - Comparison Table 5 Columns
   ========================================= */
@media (max-width: 768px) {
  .comparison-table-wrapper {
    max-width: 100%;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 6px 8px;
    font-size: 0.7rem;
  }
}

/* =========================================
   Tips Section
   ========================================= */
.tips-grid {
  display: flex;
  flex-direction: column;
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.tips-row {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 40px;
  align-items: center;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.tips-image img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  width: 100%;
}

.tips-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(59, 130, 246, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.tips-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}

.tips-text {
  font-size: 0.93rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* Responsive - Tips */
@media (max-width: 768px) {
  .tips-row {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 24px;
  }

  .tips-image {
    max-width: 280px;
    margin: 0 auto;
  }
}