/* ==========================================================================
   DR. KAVISH SHARMA — KIDNEY CARE EXPERTISE PAGE STYLES v3.2
   World-Class Specialist Medical Architecture & Design System
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. EDITORIAL HERO SECTION
   -------------------------------------------------------------------------- */
.expertise-hero {
  padding: clamp(40px, 5vw, 68px) 0;
  background: radial-gradient(circle at 90% 10%, #EBF4FF 0%, var(--color-background) 65%);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.expertise-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-6);
  align-items: center;
}

.expertise-hero-content {
  max-width: 680px;
}

.expertise-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background-color: var(--color-primary-light);
  border: 1px solid rgba(20, 110, 245, 0.16);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.expertise-hero-title {
  font-size: var(--font-size-h1);
  font-family: var(--font-heading);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-navy);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-3);
  letter-spacing: -0.025em;
}

.expertise-hero-desc {
  font-size: var(--font-size-body-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-body);
  margin-bottom: var(--space-5);
  max-width: 620px;
}

.expertise-hero-ctas {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.expertise-hero-trust-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  box-shadow: var(--shadow-xs);
}

/* Hero Right Visual Column: Clinical Profile Card */
.expertise-hero-visual-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}

.clinical-hero-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 440px;
  position: relative;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.clinical-hero-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.clinical-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-meta);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-dark);
  background-color: var(--color-primary-light);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-4);
}

.clinical-avatar-badge-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.clinical-hero-icon-large {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 6px 16px rgba(20, 110, 245, 0.28);
  flex-shrink: 0;
}

.badge-title {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  line-height: 1.25;
}

.badge-sub {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-secondary-dark);
  font-weight: var(--font-weight-semibold);
}

.clinical-hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.stat-mini-box {
  background-color: var(--color-surface-tint);
  border: 1px solid rgba(20, 110, 245, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-2);
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary-dark);
  line-height: 1.1;
}

.stat-label {
  display: block;
  font-size: 0.7rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-top: 2px;
}

.clinical-hero-highlight-box {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background-color: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

/* --------------------------------------------------------------------------
   2. STICKY CLINICAL SUB-NAVIGATION BAR WITH SCROLL CONTROLS
   -------------------------------------------------------------------------- */
.expertise-subnav-sticky {
  position: sticky;
  top: var(--header-height, 72px);
  z-index: 990;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 4px 16px rgba(11, 31, 68, 0.08);
  padding: 10px 0;
  transition: top var(--transition-fast);
  pointer-events: auto;
}

.subnav-nav-wrapper {
  display: flex;
  align-items: center;
  position: relative;
  width: 100%;
}

.subnav-scroll-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  z-index: 10;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.subnav-scroll-btn:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.subnav-scroll-left {
  margin-right: 8px;
}

.subnav-scroll-right {
  margin-left: 8px;
}

.subnav-scroll-container {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  white-space: nowrap;
  padding: 4px 2px;
  scroll-behavior: smooth;
  flex-grow: 1;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
}

.subnav-scroll-container::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}

.subnav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  background-color: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  text-decoration: none;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  user-select: none;
  cursor: pointer;
  height: 38px;
}

.subnav-link .nav-num {
  font-size: 0.72rem;
  font-weight: var(--font-weight-extrabold);
  opacity: 0.85;
  background-color: rgba(0, 0, 0, 0.06);
  padding: 1px 6px;
  border-radius: var(--radius-xs);
  margin-right: 2px;
}

.subnav-link:hover {
  color: var(--color-primary-dark);
  background-color: var(--color-primary-light);
  border-color: rgba(20, 110, 245, 0.3);
}

.subnav-link.is-active,
.subnav-link.active {
  color: var(--color-white);
  background-color: var(--color-navy);
  border-color: var(--color-navy);
  box-shadow: 0 4px 14px rgba(11, 31, 68, 0.28);
}

.subnav-link.is-active .nav-num,
.subnav-link.active .nav-num {
  background-color: rgba(255, 255, 255, 0.25);
  color: var(--color-white);
}

.subnav-link:focus-visible {
  outline: 2px solid var(--color-primary-dark);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   3. CLINICAL EXPERTISE OVERVIEW & 7 CARDS GRID
   -------------------------------------------------------------------------- */
.expertise-intro-box {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  background: linear-gradient(135deg, var(--color-surface-tint) 0%, #EBF4FF 100%);
  border: 1px solid rgba(20, 110, 245, 0.14);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-xs);
}

.expertise-intro-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(20, 110, 245, 0.25);
}

.expertise-intro-text {
  font-size: var(--font-size-body-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-body);
  margin: 0;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.expertise-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.expertise-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(20, 110, 245, 0.3);
}

.card-num-badge {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-light);
  background-color: var(--color-surface-soft);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

.expertise-icon-box {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border: 1px solid rgba(20, 110, 245, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: var(--space-4);
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.expertise-card:hover .expertise-icon-box {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.05);
}

.expertise-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  margin-bottom: var(--space-2);
  line-height: var(--line-height-heading);
}

.expertise-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.expertise-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
  margin-top: auto;
}

.expertise-link i {
  transition: transform var(--transition-fast);
}

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

.expertise-link:hover i {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   4. DETAILED CLINICAL FOCUS SECTIONS (GENEROUS SCROLL MARGIN & TOP ALIGNMENT)
   -------------------------------------------------------------------------- */
.focus-section {
  padding: 36px 0 52px 0;
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: calc(var(--header-height, 80px) + 60px + 32px);
  position: relative;
  clear: both;
}

.focus-section:nth-child(even) {
  background-color: var(--color-background);
}

.focus-section:nth-child(odd) {
  background-color: var(--color-surface);
}

.focus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: start;
}

.focus-content-col {
  margin-top: 0;
}

.focus-grid-reversed .focus-content-col {
  order: 2;
}

.focus-grid-reversed .focus-panel-col {
  order: 1;
}

.focus-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  background-color: var(--color-secondary-light);
  border: 1px solid rgba(13, 148, 136, 0.2);
  color: var(--color-secondary-dark);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
  margin-top: 0;
}

.focus-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-navy);
  line-height: var(--line-height-heading);
  margin-bottom: var(--space-3);
  letter-spacing: -0.015em;
}

.focus-description {
  font-size: var(--font-size-body-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-body);
  margin-bottom: var(--space-4);
}

.focus-features-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.focus-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: var(--font-size-body);
  color: var(--color-text);
  line-height: 1.45;
}

.focus-feature-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Structured Clinical Panel Card Component */
.clinical-panel {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  margin-top: 0;
  transition: box-shadow var(--transition-normal);
}

.clinical-panel:hover {
  box-shadow: var(--shadow-lg);
}

.clinical-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 5px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.clinical-panel-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.panel-header-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.panel-header-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  margin: 0;
}

.clinical-panel-block {
  margin-bottom: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface-tint);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
}

.clinical-panel-block:nth-child(3) {
  border-left-color: var(--color-secondary);
}

.clinical-panel-block:last-child {
  margin-bottom: 0;
  border-left-color: var(--color-success);
}

.panel-block-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-extrabold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-dark);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
}

.panel-block-content {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-body);
  margin: 0;
}

/* --------------------------------------------------------------------------
   5. PATIENT-CARE APPROACH (4-STEP TIMELINE)
   -------------------------------------------------------------------------- */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  position: relative;
}

.approach-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

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

.approach-step-badge {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.approach-card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  margin-bottom: var(--space-2);
}

.approach-card-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-body);
  margin: 0;
}

/* --------------------------------------------------------------------------
   6. VERIFICATION POLICY & STATUS CHIPS
   -------------------------------------------------------------------------- */
.verification-policy-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  margin-top: var(--space-6);
  box-shadow: var(--shadow-xs);
}

.policy-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.status-chip-verified {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-success-dark);
  background-color: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
}

/* --------------------------------------------------------------------------
   7. APPOINTMENT CTA BANNER
   -------------------------------------------------------------------------- */
.expertise-cta-banner {
  background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-2xl);
  padding: clamp(36px, 4vw, 56px) clamp(20px, 3vw, 40px);
  text-align: center;
  box-shadow: var(--shadow-xl);
  max-width: 1040px;
  margin: 0 auto;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.expertise-cta-banner .section-eyebrow {
  color: #81D4FA;
}

.expertise-cta-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.expertise-cta-desc {
  font-size: var(--font-size-body-lg);
  color: #81D4FA;
  max-width: 680px;
  margin: 0 auto var(--space-5) auto;
  line-height: var(--line-height-body);
}

.expertise-cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.expertise-cta-actions .btn-medical-ghost {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.25);
}

.expertise-cta-actions .btn-medical-ghost:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   8. RESPONSIVE BREAKPOINTS FOR EXPERTISE PAGE
   -------------------------------------------------------------------------- */
@media (max-width: 1199px) {
  .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 991px) {
  .expertise-hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .expertise-hero-content {
    max-width: 100%;
  }

  .expertise-hero-visual-wrap {
    justify-content: flex-start;
  }

  .clinical-hero-card {
    max-width: 100%;
  }

  .focus-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .focus-grid-reversed .focus-content-col {
    order: 1;
  }

  .focus-grid-reversed .focus-panel-col {
    order: 2;
  }

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

@media (max-width: 767px) {
  .expertise-grid {
    grid-template-columns: 1fr;
  }

  .expertise-intro-box {
    flex-direction: column;
    padding: var(--space-4);
  }

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

  .expertise-cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .expertise-cta-actions .btn-medical {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .clinical-hero-stats-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}