/* ==========================================================================
   Design System - 株式会社MIP
   Based on Design Guidelines
   ========================================================================== */

/* CSS Variables - Color Palette */
:root {
  /* Primary Colors */
  --color-primary: #1a237e;
  --color-primary-light: #534bae;
  --color-primary-dark: #000051;
  
  /* Secondary Colors */
  --color-secondary: #3949ab;
  --color-secondary-light: #6f74dd;
  --color-secondary-dark: #00227b;
  
  /* Accent Colors */
  --color-accent: #00bcd4;
  --color-accent-light: #62efff;
  --color-accent-dark: #008ba3;
  
  /* Neutral Colors */
  --color-text-primary: #212121;
  --color-text-secondary: #616161;
  --color-text-disabled: #9e9e9e;
  --color-border: #e0e0e0;
  --color-background: #fafafa;
  --color-white: #ffffff;
  
  /* Spacing System */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 96px;
  
  /* Typography */
  --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --line-height-tight: 1.2;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.10);
  --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.12);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

body {
  font-family: var(--font-family);
  color: var(--color-text-primary);
  line-height: var(--line-height-normal);
  background-color: var(--color-white);
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-primary);
}

h1 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 36px;
  margin-bottom: var(--spacing-lg);
}

h3 {
  font-size: 24px;
  margin-bottom: var(--spacing-md);
}

p {
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: var(--line-height-normal);
  margin-bottom: var(--spacing-md);
}

.text-large {
  font-size: 18px;
  line-height: var(--line-height-relaxed);
}

.text-small {
  font-size: 14px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-block;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  font-family: var(--font-family);
}

.btn-primary {
  background: var(--color-secondary);
  color: var(--color-white);
  padding: 12px 24px;
  border-radius: var(--radius-md);
}

.btn-primary:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(26, 35, 126, 0.2);
}

.btn-secondary {
  background: transparent;
  color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
  padding: 10px 22px;
  border-radius: var(--radius-md);
}

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

.btn-cta {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 18px;
}

.btn-cta:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 188, 212, 0.3);
}

/* ==========================================================================
   Links
   ========================================================================== */

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

a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ==========================================================================
   Cards & Containers
   ========================================================================== */

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.card-minimal {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
}

.card-minimal:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Sections
   ========================================================================== */

.section {
  padding: var(--spacing-4xl) 0;
}

.section-compact {
  padding: var(--spacing-3xl) 0;
}

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

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

.section-bg-primary h1,
.section-bg-primary h2,
.section-bg-primary h3 {
  color: var(--color-white);
}

.section-bg-primary p {
  color: rgba(255, 255, 255, 0.9);
}

/* ==========================================================================
   Gradients
   ========================================================================== */

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

.gradient-secondary {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent) 100%);
}

.gradient-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
}

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

/* ==========================================================================
   MVV Specific Styles - Redesigned
   ========================================================================== */

.mvv-hero {
  padding: var(--spacing-3xl) 0;
  background: var(--color-background);
  text-align: center;
}

.mvv-hero h1 {
  color: var(--color-primary);
  font-size: 42px;
  margin-bottom: var(--spacing-sm);
}

.mvv-hero .subtitle {
  color: var(--color-text-secondary);
  font-size: 20px;
  font-weight: 400;
}

.mvv-section {
  padding: var(--spacing-4xl) 0;
  position: relative;
  overflow: hidden;
}

.mvv-section-mission {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.mvv-section-vision {
  background: var(--color-background);
}

.mvv-section-values {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.mvv-content {
  max-width: 900px;
  margin: 0 auto;
}

.mvv-label {
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-sm);
}

.mvv-title {
  color: var(--color-primary);
  font-size: 36px;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.mvv-statement {
  color: var(--color-primary);
  font-size: 24px;
  font-weight: 600;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 2px solid var(--color-border);
}

.mvv-description {
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: var(--line-height-relaxed);
  text-align: left;
}

.mvv-description p {
  margin-bottom: var(--spacing-lg);
}

.mvv-description p:last-child {
  margin-bottom: 0;
}

.mvv-emphasis {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 18px;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

/* Values Cards - Redesigned */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.value-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  text-align: left;
}

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

.value-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-full);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

.value-title {
  color: var(--color-primary);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.value-subtitle {
  color: var(--color-text-secondary);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.value-description {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: var(--line-height-relaxed);
  text-align: left;
  flex: 1;
  margin-top: auto;
}

/* Company Info Section */
.company-info {
  background: var(--color-background);
  padding: var(--spacing-4xl) 0;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
}

.info-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table tr {
  border-bottom: 1px solid var(--color-border);
}

.info-table tr:last-child {
  border-bottom: none;
}

.info-table th {
  padding: var(--spacing-md) 0;
  text-align: left;
  color: var(--color-primary);
  font-weight: 600;
  width: 35%;
}

.info-table td {
  padding: var(--spacing-md) 0;
  color: var(--color-text-secondary);
}

/* CTA Section */
.cta-section {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-4xl) 0;
  text-align: center;
}

.cta-section h2 {
  color: var(--color-white);
  font-size: 36px;
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 18px;
  margin-bottom: var(--spacing-xl);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
  h1 {
    font-size: 36px;
  }
  
  h2 {
    font-size: 28px;
  }
  
  h3 {
    font-size: 20px;
  }
  
  .mvv-hero h1 {
    font-size: 32px;
  }
  
  .mvv-title {
    font-size: 28px;
  }
  
  .mvv-statement {
    font-size: 20px;
  }
  
  .info-grid {
    grid-template-columns: 1fr;
  }
  
  .values-grid {
    grid-template-columns: 1fr;
  }
  
  .section {
    padding: var(--spacing-3xl) 0;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 28px;
  }
  
  h2 {
    font-size: 24px;
  }
  
  .mvv-hero h1 {
    font-size: 28px;
  }
  
  .btn-cta {
    padding: 12px 24px;
    font-size: 16px;
  }
}