/* ==========================================
   Detection Mechanism Page Styles
   Following New Site Layout & Color Standards
   ========================================== */

:root {
  --color-primary: #F5A623;
  --color-dark: #1A1A1A;
  --color-white: #FFFFFF;
  --color-gray: #666666;
  --color-light-gray: #F5F5F5;
  --color-border: #E0E0E0;
  --color-border-light: #DDDDDD;
  --color-text-light: #999999;
  --container-width: 1488px;
  --section-padding: 80px;
  --section-padding-small: 60px;
  --card-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  --card-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s ease;
  --border-radius: 8px;
  --border-radius-small: 4px;
}

/* ==========================================
   Section General Styles
   ========================================== */

.detection-ratio,
.detection-flow,
.detection-lab,
.detection-training {
  padding: var(--section-padding) 0;
}

.detection-ratio,
.detection-lab {
  background: var(--color-white);
}

.detection-flow,
.detection-training {
  background: var(--color-light-gray);
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 42px;
  font-weight: 900;
  color: var(--color-dark);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-header p {
  font-size: 18px;
  color: var(--color-gray);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ==========================================
   Detection Ratio Section
   ========================================== */

.detection-ratio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.detection-ratio-card {
  background: var(--color-white);
  border-radius: var(--border-radius);
  padding: 40px;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  border-bottom: 4px solid transparent;
}

.detection-ratio-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--card-shadow-hover);
  border-bottom-color: var(--color-primary);
}

.detection-ratio-card__icon {
  width: 80px;
  height: 80px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  transition: var(--transition);
}

.detection-ratio-card:hover .detection-ratio-card__icon {
  transform: scale(1.1);
}

.detection-ratio-card__icon i {
  font-size: 36px;
  color: var(--color-white);
}

.detection-ratio-card__number {
  font-size: 56px;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 12px;
}

.detection-ratio-card__title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.detection-ratio-card__desc {
  font-size: 16px;
  color: var(--color-gray);
  line-height: 1.6;
  margin-bottom: 20px;
}

.detection-ratio-card__list {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
}

.detection-ratio-card__list li {
  font-size: 15px;
  color: var(--color-gray);
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
}

.detection-ratio-card__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* ==========================================
   Detection Flow Section - Horizontal Timeline
   ========================================== */

.detection-flow-timeline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: nowrap;
  overflow-x: auto;
  padding: 20px 0;
}

.detection-flow-item {
  flex: 0 0 auto;
  width: 260px;
  background: var(--color-white);
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  border-bottom: 4px solid transparent;
  position: relative;
}

.detection-flow-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--card-shadow-hover);
  border-bottom-color: var(--color-primary);
}

.detection-flow-item__step {
  width: 50px;
  height: 50px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 900;
  color: var(--color-white);
  margin: 0 auto 20px;
}

.detection-flow-item__icon {
  width: 70px;
  height: 70px;
  background: rgba(245, 166, 35, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.detection-flow-item__icon i {
  font-size: 32px;
  color: var(--color-primary);
}

.detection-flow-item__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
  text-align: center;
}

.detection-flow-item__desc {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.6;
  text-align: center;
}

.detection-flow-arrow {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  margin-top: 80px;
}

.detection-flow-arrow i {
  font-size: 28px;
  color: var(--color-primary);
  opacity: 0.5;
}

/* ==========================================
   Detection Lab Section
   ========================================== */

.detection-lab-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.detection-lab-card {
  background: var(--color-white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  border-bottom: 4px solid transparent;
  display: flex;
  flex-direction: column;
}

.detection-lab-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--card-shadow-hover);
  border-bottom-color: var(--color-primary);
}

.detection-lab-card__image {
  width: 100%;
  height: 240px;
  overflow: hidden;
  background: var(--color-light-gray);
}

.detection-lab-card__image svg {
  width: 100%;
  height: 100%;
  transition: transform 0.5s ease;
}

.detection-lab-card:hover .detection-lab-card__image svg {
  transform: scale(1.05);
}

.detection-lab-card__content {
  padding: 30px;
  flex: 1;
}

.detection-lab-card__content h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.detection-lab-card__content p {
  font-size: 16px;
  color: var(--color-gray);
  line-height: 1.6;
  margin-bottom: 16px;
}

.detection-lab-card__content ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.detection-lab-card__content ul li {
  font-size: 15px;
  color: var(--color-gray);
  padding: 6px 0;
  padding-left: 24px;
  position: relative;
}

.detection-lab-card__content ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* ==========================================
   Detection Training Section
   ========================================== */

.detection-training-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.detection-training-card {
  background: var(--color-white);
  border-radius: var(--border-radius);
  padding: 40px;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  border-bottom: 4px solid transparent;
  text-align: center;
}

.detection-training-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--card-shadow-hover);
  border-bottom-color: var(--color-primary);
}

.detection-training-card__icon {
  width: 90px;
  height: 90px;
  background: linear-gradient(135deg, var(--color-primary), #e0951c);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  transition: var(--transition);
}

.detection-training-card:hover .detection-training-card__icon {
  transform: scale(1.1) rotate(5deg);
}

.detection-training-card__icon i {
  font-size: 40px;
  color: var(--color-white);
}

.detection-training-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.detection-training-card p {
  font-size: 16px;
  color: var(--color-gray);
  line-height: 1.6;
  margin-bottom: 20px;
}

.detection-training-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
}

.detection-training-card ul li {
  font-size: 15px;
  color: var(--color-gray);
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
}

.detection-training-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* ==========================================
   Image Placeholder Styles
   ========================================== */

.image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-light-gray);
}

/* ==========================================
   Responsive Styles
   ========================================== */

@media (max-width: 1200px) {
  .detection-ratio-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
  }
  
  .detection-lab-grid {
    grid-template-columns: 1fr;
    max-width: 700px;
    margin: 0 auto;
  }
  
  .detection-training-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .detection-flow-timeline {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .detection-flow-arrow {
    display: none;
  }
}

@media (max-width: 992px) {
  .detection-ratio,
  .detection-flow,
  .detection-lab,
  .detection-training {
    padding: var(--section-padding-small) 0;
  }
  
  .section-header h2 {
    font-size: 36px;
  }
  
  .section-header p {
    font-size: 16px;
  }
}

@media (max-width: 768px) {
  .detection-training-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
  
  .detection-flow-item {
    width: 100%;
    max-width: 320px;
  }
  
  .detection-flow-timeline {
    flex-direction: column;
    align-items: center;
  }
  
  .detection-ratio-card,
  .detection-training-card {
    padding: 30px;
  }
  
  .detection-lab-card__content {
    padding: 24px;
  }
  
  .detection-ratio-card__number {
    font-size: 48px;
  }
  
  .section-header h2 {
    font-size: 32px;
  }
}

@media (max-width: 576px) {
  .detection-ratio-card,
  .detection-training-card {
    padding: 24px;
  }
  
  .detection-lab-card__image {
    height: 200px;
  }
  
  .section-header h2 {
    font-size: 28px;
  }
}

/* ==========================================
   Scroll Animations (JS Controlled)
   ========================================== */

.detection-ratio-card,
.detection-flow-item,
.detection-lab-card,
.detection-training-card {
  opacity: 1;
  transform: none;
}