/* Why Choose Us Page Styles */

/* AOS Library */
@import url('https://unpkg.com/aos@2.3.1/dist/aos.css');

/* General */
body {
  font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
  color: #1a1a1a;
  line-height: 1.8;
}

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

/* Hero Section */
.why-hero {
  position: relative;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  overflow: hidden;
  padding: 100px 20px;
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
  animation: particlesFloat 20s ease-in-out infinite;
}

@keyframes particlesFloat {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.6;
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
    opacity: 0.8;
  }
  66% {
    transform: translate(-30px, 30px) scale(0.9);
    opacity: 0.7;
  }
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.1);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  animation: heroFadeIn 1.2s ease-out;
}

@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  padding: 10px 28px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 28px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: 3px;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 1.4rem;
  font-weight: 300;
  opacity: 0.95;
}

/* Promise Section */
.promise-section {
  padding: 120px 0;
  background: #fff;
}

.section-title-center {
  font-size: 2.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: #1a1a1a;
}

.section-subtitle-center {
  font-size: 1.2rem;
  text-align: center;
  color: #6b7280;
  margin-bottom: 5rem;
}

.promise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.promise-card {
  background: #fff;
  padding: 50px 35px;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.promise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.promise-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 20px 60px rgba(102, 126, 234, 0.25);
  border-color: #667eea;
}

.promise-card:hover::before {
  transform: scaleX(1);
}

.promise-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  color: #fff;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.promise-card:hover .promise-icon {
  transform: rotateY(360deg);
}

.promise-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: #1a1a1a;
}

.promise-description {
  font-size: 1rem;
  color: #4b5563;
  line-height: 1.8;
}

/* Stats Section */
.stats-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.stat-item {
  text-align: center;
  padding: 40px 20px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-item:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.stat-number {
  font-size: 4rem;
  font-weight: 800;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.stat-suffix {
  font-size: 2rem;
  font-weight: 700;
  display: inline-block;
  margin-left: 5px;
}

.stat-label {
  font-size: 1.1rem;
  font-weight: 500;
  opacity: 0.9;
}

/* Reasons Section */
.reasons-section {
  padding: 120px 0;
  background: linear-gradient(180deg, #f9fafb 0%, #fff 50%, #f9fafb 100%);
}

.reason-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 120px;
  padding: 60px;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.reason-item:hover {
  box-shadow: 0 20px 60px rgba(102, 126, 234, 0.15);
  transform: translateY(-5px);
}

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

.reason-item.reverse {
  grid-template-columns: 1fr 1fr;
}

.reason-item.reverse .reason-content {
  order: 2;
}

.reason-item.reverse .reason-visual {
  order: 1;
}

.reason-number {
  display: inline-block;
  font-size: 1.2rem;
  font-weight: 700;
  color: #667eea;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.reason-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #1a1a1a;
  line-height: 1.3;
}

.reason-description {
  font-size: 1.05rem;
  color: #4b5563;
  line-height: 1.9;
  margin-bottom: 2rem;
}

.reason-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.reason-features li {
  padding: 12px 0;
  padding-left: 32px;
  position: relative;
  color: #6b7280;
  font-size: 0.95rem;
  font-weight: 500;
}

.reason-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #667eea;
  font-weight: 700;
  font-size: 1.2rem;
}

.reason-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-box {
  width: 100%;
  max-width: 400px;
  padding: 40px;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8eeff 100%);
  border-radius: 24px;
  box-shadow: 0 10px 40px rgba(102, 126, 234, 0.1);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.reason-item:hover .visual-box {
  transform: scale(1.05);
  box-shadow: 0 15px 50px rgba(102, 126, 234, 0.2);
}

.reason-svg {
  width: 100%;
  height: auto;
}

/* Process Section */
.process-section {
  padding: 120px 0;
  background: #fff;
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-top: 60px;
}

.process-step {
  text-align: center;
  padding: 40px 30px;
  background: linear-gradient(135deg, #f9fafb 0%, #fff 100%);
  border-radius: 20px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.process-step::after {
  content: '→';
  position: absolute;
  right: -30px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2rem;
  color: #667eea;
  font-weight: 700;
}

.process-step:last-child::after {
  display: none;
}

.process-step:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 50px rgba(102, 126, 234, 0.15);
  background: linear-gradient(135deg, #f0f4ff 0%, #fff 100%);
}

.step-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  color: #fff;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.process-step:hover .step-icon {
  transform: rotateY(360deg);
}

.step-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #1a1a1a;
}

.step-description {
  font-size: 0.95rem;
  color: #6b7280;
  line-height: 1.7;
}

/* CTA Section */
.why-cta {
  padding: 120px 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.why-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.15) 0%, transparent 60%);
  animation: ctaPulse 10s ease-in-out infinite;
}

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

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.cta-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.2);
  letter-spacing: 1px;
}

.cta-description {
  font-size: 1.3rem;
  margin-bottom: 3rem;
  opacity: 0.95;
  font-weight: 300;
}

.cta-button {
  display: inline-block;
  background: #fff;
  color: #667eea;
  padding: 20px 60px;
  font-size: 1.2rem;
  font-weight: 700;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.3);
}

.cta-button:hover {
  background: #f0f4ff;
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 12px 40px rgba(255, 255, 255, 0.4);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .promise-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .reason-item,
  .reason-item.reverse {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .reason-item.reverse .reason-content {
    order: 1;
  }

  .reason-item.reverse .reason-visual {
    order: 2;
  }

  .reason-features {
    grid-template-columns: 1fr;
  }

  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-step::after {
    display: none;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.8rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .section-title-center {
    font-size: 2.2rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .reason-item {
    padding: 40px 30px;
    margin-bottom: 60px;
  }

  .reason-title {
    font-size: 1.6rem;
  }

  .process-timeline {
    grid-template-columns: 1fr;
  }

  .cta-title {
    font-size: 2.2rem;
  }

  .cta-description {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .why-hero {
    padding: 80px 20px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .promise-card {
    padding: 40px 25px;
  }

  .promise-section,
  .reasons-section,
  .process-section {
    padding: 80px 0;
  }

  .stats-section,
  .why-cta {
    padding: 80px 0;
  }

  .reason-item {
    padding: 30px 20px;
  }

  .cta-button {
    padding: 16px 40px;
    font-size: 1rem;
  }
}