/* ============================================
   ABOUT PAGE - MODERN PROFESSIONAL DESIGN
   ============================================ */

/* ============================================
   PAGE HERO SECTION
   ============================================ */
.page-hero {
  position: relative;
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #1e3a8a 0%, #991b1b 100%);
  overflow: hidden;
}

.page-hero-background {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 60px,
      rgba(255, 255, 255, 0.02) 60px,
      rgba(255, 255, 255, 0.02) 61px
    );
}

.page-hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  animation: fadeIn 0.6s ease-out;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color 0.3s;
}

.breadcrumb a:hover {
  color: white;
}

.breadcrumb .separator {
  color: rgba(255, 255, 255, 0.5);
}

/* Page Title */
.page-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: white;
  margin-bottom: 16px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  animation: fadeInUp 0.8s ease-out;
}

.page-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* ============================================
   INTRODUCTION SECTION
   ============================================ */
.intro-section {
  padding: 100px 0;
  background: white;
}

.intro-content {
  max-width: 1100px;
  margin: 0 auto;
}

.intro-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: rgba(30, 58, 138, 0.1);
  border: 2px solid rgba(30, 58, 138, 0.2);
  border-radius: 50px;
  color: #1e3a8a;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.intro-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 32px;
  line-height: 1.2;
}

.intro-text {
  font-size: 17px;
  line-height: 1.8;
  color: #475569;
  margin-bottom: 24px;
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 60px;
}

.metric-card {
  background: white;
  border: 2px solid #e2e8f0;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #1e3a8a, #991b1b);
  transform: scaleX(0);
  transition: transform 0.3s;
}

.metric-card:hover {
  transform: translateY(-8px);
  border-color: #1e3a8a;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

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

.metric-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, #1e3a8a, #3b82f6);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: all 0.3s;
}

.metric-card:hover .metric-icon {
  transform: scale(1.1) rotate(5deg);
}

.metric-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1;
  margin-bottom: 8px;
}

.metric-label {
  font-size: 14px;
  font-weight: 600;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================
   EXPERTISE SECTION
   ============================================ */
.expertise-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
}

.content-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 80px;
  align-items: start;
}

.section-badge {
  display: inline-block;
  padding: 8px 16px;
  background: rgba(30, 58, 138, 0.1);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: #1e3a8a;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 24px;
  line-height: 1.2;
  text-align: left;
}

.content-text {
  font-size: 16px;
  line-height: 1.8;
  color: #475569;
  margin-bottom: 20px;
}

.content-text strong {
  color: #0f172a;
  font-weight: 700;
}

/* Expertise Features */
.expertise-features {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}

.feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 24px;
  background: white;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  transition: all 0.3s;
}

.feature-item:hover {
  transform: translateX(8px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  border-color: #1e3a8a;
}

.feature-check {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-item h4 {
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 4px;
}

.feature-item p {
  font-size: 14px;
  color: #64748b;
  margin: 0;
}

/* Content Visual */
.content-visual {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 100px;
}

.visual-box {
  padding: 40px 32px;
  border-radius: 20px;
  text-align: center;
  color: white;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  transition: all 0.3s;
}

.visual-box:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

.visual-primary {
  background: linear-gradient(135deg, #1e3a8a, #3b82f6);
}

.visual-secondary {
  background: linear-gradient(135deg, #0f766e, #14b8a6);
}

.visual-icon {
  margin: 0 auto 24px;
}

.visual-box h3 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1;
  color: white;
}

.visual-box p {
  font-size: 15px;
  font-weight: 600;
  opacity: 0.9;
  margin: 0;
  color: white;
}

/* ============================================
   BILLING PROCESS SECTION
   ============================================ */
.billing-process-section {
  padding: 100px 0;
  background: white;
}

.section-header-center {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 60px;
}

.section-description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: #64748b;
  margin-top: 16px;
}

.billing-intro {
  max-width: 900px;
  margin: 0 auto 60px;
  padding: 32px;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.05), rgba(153, 27, 27, 0.05));
  border-radius: 16px;
  border: 1px solid #e2e8f0;
}

.billing-intro p {
  font-size: 16px;
  line-height: 1.8;
  color: #475569;
  margin: 0;
}

/* Process Timeline */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-bottom: 60px;
}

.process-step {
  position: relative;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, #1e3a8a, #3b82f6);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 8px 20px rgba(30, 58, 138, 0.25);
  transition: all 0.3s;
}

.process-step:hover .step-number {
  transform: scale(1.1);
  box-shadow: 0 12px 30px rgba(30, 58, 138, 0.35);
}

.step-content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 8px;
  line-height: 1.3;
}

.step-content p {
  font-size: 14px;
  line-height: 1.6;
  color: #64748b;
  margin: 0;
}

/* Process Summary */
.process-summary {
  display: flex;
  gap: 24px;
  align-items: center;
  padding: 40px;
  background: linear-gradient(135deg, #f8fafc, white);
  border-radius: 20px;
  border: 2px solid #e2e8f0;
  max-width: 900px;
  margin: 0 auto;
}

.summary-icon {
  width: 80px;
  height: 80px;
  border-radius: 16px;
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.summary-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 8px;
}

.summary-content p {
  font-size: 15px;
  line-height: 1.7;
  color: #64748b;
  margin: 0;
}

/* ============================================
   ICD SECTION
   ============================================ */
.icd-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
}

.icd-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: center;
}

/* ICD Visual */
.icd-visual {
  text-align: center;
}

.icd-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  background: linear-gradient(135deg, #10b981, #059669);
  border-radius: 60px;
  color: white;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 40px;
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

.icd-stats {
  display: flex;
  gap: 24px;
  justify-content: center;
}

.icd-stat-item {
  padding: 40px;
  background: white;
  border-radius: 20px;
  border: 2px solid #e2e8f0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.3s;
}

.icd-stat-item:hover {
  transform: translateY(-8px);
  border-color: #1e3a8a;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.icd-stat-item .stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1;
  margin-bottom: 8px;
}

.icd-stat-item .stat-label {
  font-size: 14px;
  font-weight: 600;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ICD Features */
.icd-features {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.icd-feature-card {
  padding: 20px;
  background: white;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  transition: all 0.3s;
}

.icd-feature-card:hover {
  transform: translateX(8px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  border-color: #10b981;
}

.icd-feature-card h4 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 8px;
}

.icd-feature-card h4 svg {
  color: #10b981;
  flex-shrink: 0;
}

.icd-feature-card p {
  font-size: 14px;
  color: #64748b;
  margin: 0;
  line-height: 1.6;
}

/* ============================================
   COMMITMENT SECTION
   ============================================ */
.commitment-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #1e3a8a 0%, #991b1b 100%);
  position: relative;
  overflow: hidden;
}

.commitment-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
}

.commitment-card {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.commitment-content h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  color: white;
  margin-bottom: 20px;
  line-height: 1.2;
}

.commitment-content p {
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
}

.commitment-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1200px) {
  .content-grid {
    gap: 60px;
  }
  
  .icd-grid {
    gap: 60px;
  }
}

@media (max-width: 968px) {
  .page-hero {
    padding: 120px 0 60px;
  }
  
  .metrics-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
  
  .content-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .content-visual {
    position: static;
    flex-direction: row;
  }
  
  .process-timeline {
    grid-template-columns: 1fr;
  }
  
  .icd-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .icd-visual {
    order: -1;
  }
  
  .process-summary {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .page-hero {
    padding: 100px 0 50px;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  
  .content-visual {
    flex-direction: column;
  }
  
  .icd-stats {
    flex-direction: column;
  }
  
  .commitment-cta {
    flex-direction: column;
  }
  
  .commitment-cta .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: 2rem;
  }
  
  .intro-title,
  .section-title {
    font-size: 1.75rem;
  }
  
  .metric-card,
  .feature-item,
  .icd-feature-card {
    padding: 20px 16px;
  }
  
  .billing-intro {
    padding: 24px;
  }
  
  .process-summary {
    padding: 24px;
  }
  
  .visual-box {
    padding: 32px 24px;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.btn:focus-visible,
a:focus-visible {
  outline: 3px solid #3b82f6;
  outline-offset: 3px;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .page-hero,
  .commitment-section,
  .footer {
    display: none;
  }
  
  .section {
    page-break-inside: avoid;
  }
  
  body {
    background: white;
  }
}