/* ==========================================================================
   HealthGood.in - Clinical Design System & Stylesheet
   Tier-1 Audience Targeted: US, UK, Canada, Australia
   Strict E-E-A-T & YMYL Quality Compliance | Core Web Vitals Optimized
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette - Clinical Trustworthy */
  --color-primary-950: #020617;
  --color-primary-900: #0f172a; /* Deep Navy Base */
  --color-primary-800: #1e293b;
  --color-primary-700: #334155;
  --color-primary-600: #475569;
  --color-primary-500: #64748b;
  
  --color-teal-900: #134e4a;
  --color-teal-800: #115e59;
  --color-teal-700: #0f766e;
  --color-teal-600: #0d9488; /* Clinical Teal Accent */
  --color-teal-500: #14b8a6;
  --color-teal-100: #ccfbf1;
  --color-teal-50: #f0fdfa;

  --color-surface-bg: #f8fafc; /* Slate White Background */
  --color-surface-card: #ffffff;
  --color-surface-subtle: #f1f5f9;
  --color-surface-border: #e2e8f0;
  --color-surface-border-strong: #cbd5e1;

  /* Typography Colors (High Contrast WCAG AAA/AA) */
  --color-text-main: #0f172a;
  --color-text-muted: #475569;
  --color-text-subtle: #64748b;
  --color-text-inverse: #ffffff;

  /* Clinical State Indicators */
  --color-verified-bg: #ecfdf5;
  --color-verified-text: #065f46;
  --color-verified-border: #a7f3d0;

  --color-warning-bg: #fffbeb;
  --color-warning-text: #92400e;
  --color-warning-border: #fde68a;

  --color-danger-bg: #fef2f2;
  --color-danger-text: #991b1b;
  --color-danger-border: #fecaca;

  --color-info-bg: #eff6ff;
  --color-info-text: #1e40af;
  --color-info-border: #bfdbfe;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Elevation Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.07);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.06);

  /* Transitions & Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. Reset & Core Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-main);
  background-color: var(--color-surface-bg);
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--color-text-main);
  background-color: var(--color-surface-bg);
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
}

input, button, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

a {
  color: var(--color-teal-700);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-teal-900);
  text-decoration: underline;
  text-underline-offset: 3px;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary-900);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  margin-bottom: 1.25rem;
  color: var(--color-primary-800);
}

ul, ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.375rem;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--color-teal-600);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Containers (Consistent Layout Grid) */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-narrow {
  width: 100%;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* --------------------------------------------------------------------------
   3. Medical Disclaimer Sitewide Banner
   -------------------------------------------------------------------------- */
.disclaimer-banner {
  background-color: var(--color-primary-900);
  color: #f8fafc;
  font-size: 0.8125rem;
  line-height: 1.4;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--color-primary-800);
  position: relative;
  z-index: 50;
}

.disclaimer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  max-width: 1240px;
  margin: 0 auto;
}

.disclaimer-content {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
}

.disclaimer-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  background-color: #d97706;
  color: #ffffff;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.disclaimer-text {
  color: #cbd5e1;
}

.disclaimer-text a {
  color: #38bdf8;
  text-decoration: underline;
}

.disclaimer-close {
  color: #94a3b8;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.disclaimer-close:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.1);
}

/* --------------------------------------------------------------------------
   4. Header & Global Navigation
   -------------------------------------------------------------------------- */
.site-header {
  background-color: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--color-surface-border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-fast);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
  gap: 1rem;
}

/* Brand Logo */
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-icon {
  width: 2.25rem;
  height: 2.25rem;
  background: linear-gradient(135deg, var(--color-teal-600), var(--color-teal-800));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(13, 148, 136, 0.3);
  flex-shrink: 0;
}

.brand-icon svg {
  width: 1.35rem;
  height: 1.35rem;
  stroke: #ffffff;
  stroke-width: 2.2;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.3125rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-primary-950);
  line-height: 1.1;
}

.brand-name span {
  color: var(--color-teal-600);
}

.brand-tagline {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary-500);
}

/* Navigation Links (Single-Line, No Wrap Guarantee) */
.nav-desktop {
  display: none;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary-700);
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap !important;
  transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-teal-700);
  background-color: var(--color-teal-50);
  text-decoration: none;
}

.nav-badge {
  font-size: 0.6875rem;
  background-color: var(--color-teal-100);
  color: var(--color-teal-800);
  padding: 0.125rem 0.45rem;
  border-radius: var(--radius-full);
  font-weight: 700;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.search-trigger {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-surface-border);
  color: var(--color-text-subtle);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.search-trigger:hover {
  background-color: #ffffff;
  border-color: var(--color-teal-500);
  color: var(--color-text-main);
  box-shadow: 0 0 0 3px var(--color-teal-100);
}

.search-kbd {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  background-color: #ffffff;
  border: 1px solid var(--color-surface-border-strong);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  color: var(--color-text-muted);
}

.mobile-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  color: var(--color-primary-900);
  border-radius: var(--radius-sm);
}

@media (min-width: 1024px) {
  .mobile-nav-toggle {
    display: none;
  }
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 85%;
  max-width: 360px;
  background-color: #ffffff;
  z-index: 100;
  box-shadow: var(--shadow-xl);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
}

.mobile-drawer.open {
  transform: translateX(0);
}

.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.6);
  z-index: 90;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-surface-border);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
}

.mobile-nav-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary-800);
  border-radius: var(--radius-md);
  text-decoration: none;
}

.mobile-nav-links a:hover {
  background-color: var(--color-teal-50);
  color: var(--color-teal-700);
}

/* --------------------------------------------------------------------------
   5. Search Modal & Autocomplete
   -------------------------------------------------------------------------- */
.search-modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(4px);
  z-index: 110;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 4rem 1.25rem 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.search-modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.search-modal {
  background-color: #ffffff;
  width: 100%;
  max-width: 640px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-surface-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-surface-border);
  gap: 0.75rem;
}

.search-input-wrapper svg {
  color: var(--color-teal-600);
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1.125rem;
  color: var(--color-primary-900);
  background: transparent;
}

.search-results {
  max-height: 400px;
  overflow-y: auto;
  padding: 0.5rem;
}

.search-result-item {
  display: flex;
  flex-direction: column;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.search-result-item:hover, .search-result-item.selected {
  background-color: var(--color-teal-50);
  text-decoration: none;
}

.search-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.search-result-title {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--color-primary-900);
}

.search-result-category {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  background-color: var(--color-surface-subtle);
  color: var(--color-primary-600);
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
}

.search-result-snippet {
  font-size: 0.8125rem;
  color: var(--color-primary-600);
  margin-bottom: 0;
  line-height: 1.4;
}

.search-footer {
  padding: 0.75rem 1.25rem;
  background-color: var(--color-surface-subtle);
  border-top: 1px solid var(--color-surface-border);
  font-size: 0.75rem;
  color: var(--color-text-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   6. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  padding: 3.5rem 0 3rem;
  background: linear-gradient(180deg, #ffffff 0%, var(--color-surface-bg) 100%);
  border-bottom: 1px solid var(--color-surface-border);
  text-align: center;
  width: 100%;
}

.hero .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-left: auto !important;
  margin-right: auto !important;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--color-teal-50);
  border: 1px solid var(--color-teal-100);
  color: var(--color-teal-800);
  padding: 0.35rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2rem, 4vw + 1rem, 3.25rem);
  font-weight: 900;
  color: var(--color-primary-950);
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.hero-title span {
  color: var(--color-teal-600);
}

.hero-subtitle {
  font-size: 1.1875rem;
  color: var(--color-primary-600);
  max-width: 720px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-search-box {
  max-width: 640px;
  margin: 0 auto 1.5rem;
  position: relative;
}

.hero-search-input {
  width: 100%;
  padding: 1rem 3.5rem 1rem 1.25rem;
  border-radius: var(--radius-xl);
  border: 2px solid var(--color-surface-border-strong);
  font-size: 1rem;
  background-color: #ffffff;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.hero-search-input:focus {
  border-color: var(--color-teal-600);
  box-shadow: 0 0 0 4px var(--color-teal-100);
  outline: none;
}

.hero-search-btn {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--color-teal-600);
  color: #ffffff;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

.hero-search-btn:hover {
  background-color: var(--color-teal-700);
}

.hero-quick-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.quick-link-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-subtle);
  margin-right: 0.25rem;
}

.quick-link-chip {
  background-color: #ffffff;
  border: 1px solid var(--color-surface-border);
  color: var(--color-primary-700);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.quick-link-chip:hover {
  border-color: var(--color-teal-600);
  color: var(--color-teal-700);
  background-color: var(--color-teal-50);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   7. Section Headers, Breadcrumbs & Badges
   -------------------------------------------------------------------------- */
.section {
  padding: 4rem 0;
}

.section-alt {
  background-color: #ffffff;
}

.section-header {
  margin-bottom: 2.75rem;
  text-align: center;
}

.section-header.text-left {
  text-align: left;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background-color: var(--color-teal-100);
  color: var(--color-teal-800);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 2.5vw + 0.5rem, 2.25rem);
  font-weight: 800;
  color: var(--color-primary-950);
  margin-bottom: 0.75rem;
  letter-spacing: -0.025em;
}

.section-description {
  font-size: 1.0625rem;
  color: var(--color-primary-600);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* Breadcrumbs (Globally Centered on Hubs) */
.breadcrumbs {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-primary-500);
  margin-bottom: 1.5rem;
}

.breadcrumbs a {
  color: var(--color-primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--color-teal-700);
}

.breadcrumbs .separator {
  color: var(--color-surface-border-strong);
}

.breadcrumbs span:last-child {
  color: var(--color-primary-900);
  font-weight: 600;
}

/* Filter Pills Bar (Centered Filter Row) */
.filter-pills-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

/* --------------------------------------------------------------------------
   8. Interactive Calculators Component System
   -------------------------------------------------------------------------- */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .calc-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.calc-card {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-surface-border);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.calc-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-teal-500);
  transform: translateY(-2px);
}

.calc-card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  background-color: var(--color-teal-50);
  color: var(--color-teal-700);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.calc-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-primary-900);
}

.calc-card-desc {
  font-size: 0.875rem;
  color: var(--color-primary-600);
  margin-bottom: 1.5rem;
  flex: 1;
}

.calc-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--color-surface-subtle);
}

.calc-letter-badge {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background-color: var(--color-teal-50);
  border: 1px solid var(--color-teal-100);
  color: var(--color-teal-700);
  font-weight: 800;
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.calc-open-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-teal-700);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.calc-open-link:hover {
  color: var(--color-teal-900);
  text-decoration: none;
  transform: translateX(2px);
}

/* Color Gauge Bar (BMI, Body Fat, Risk) */
.gauge-track {
  width: 100%;
  height: 10px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, #0284c7 0%, #0d9488 25%, #10b981 50%, #d97706 75%, #dc2626 100%);
  position: relative;
  margin: 1.25rem 0 0.5rem;
}

.gauge-marker {
  position: absolute;
  top: -4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: #ffffff;
  border: 3px solid var(--color-primary-900);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  transform: translateX(-50%);
  transition: left 0.3s ease;
}

/* Macro Bar Split */
.macro-split-bar {
  display: flex;
  height: 14px;
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: 1rem 0;
  background-color: var(--color-surface-subtle);
}

.macro-split-protein {
  background-color: #0d9488;
  transition: width 0.3s ease;
}

.macro-split-carbs {
  background-color: #0284c7;
  transition: width 0.3s ease;
}

.macro-split-fats {
  background-color: #d97706;
  transition: width 0.3s ease;
}

.calc-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--color-teal-600);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.calc-btn-primary:hover {
  background-color: var(--color-teal-700);
  color: #ffffff;
  text-decoration: none;
}

/* Dedicated Calculator Widget Box */
.calculator-box {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-surface-border);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: 2.5rem;
}

.calculator-header {
  padding: 1.5rem 2rem;
  background: linear-gradient(135deg, var(--color-primary-900), var(--color-primary-800));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.calculator-title-area h2 {
  color: #ffffff;
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.calculator-title-area p {
  color: #cbd5e1;
  font-size: 0.875rem;
  margin-bottom: 0;
}

/* Unit Switcher (Imperial vs Metric) */
.unit-switcher {
  display: inline-flex;
  background-color: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  padding: 0.25rem;
}

.unit-btn {
  padding: 0.35rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #e2e8f0;
  transition: all var(--transition-fast);
}

.unit-btn.active {
  background-color: #ffffff;
  color: var(--color-primary-900);
  box-shadow: var(--shadow-sm);
}

.calculator-body {
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 900px) {
  .calculator-body {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary-800);
  margin-bottom: 0.375rem;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--color-primary-500);
  margin-top: 0.25rem;
}

.input-with-addon {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-surface-border-strong);
  font-size: 1rem;
  background-color: #ffffff;
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-teal-600);
  box-shadow: 0 0 0 3px var(--color-teal-100);
  outline: none;
}

.input-addon {
  position: absolute;
  right: 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary-500);
  pointer-events: none;
}

.form-select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-surface-border-strong);
  font-size: 0.9375rem;
  background-color: #ffffff;
  color: var(--color-primary-800);
}

.form-select:focus {
  border-color: var(--color-teal-600);
  box-shadow: 0 0 0 3px var(--color-teal-100);
  outline: none;
}

.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* Results Display Box */
.calc-results-panel {
  background-color: var(--color-surface-subtle);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-surface-border);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.results-header {
  border-bottom: 1px solid var(--color-surface-border);
  padding-bottom: 0.75rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.results-header h3 {
  font-size: 1.125rem;
  color: var(--color-primary-900);
}

.results-badge {
  background-color: var(--color-teal-100);
  color: var(--color-teal-800);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
}

.metric-highlight {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-surface-border);
  padding: 1.25rem;
  margin-bottom: 1rem;
  text-align: center;
}

.metric-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-500);
  margin-bottom: 0.25rem;
}

.metric-value {
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--color-teal-700);
  line-height: 1.1;
}

.metric-subtext {
  font-size: 0.8125rem;
  color: var(--color-primary-600);
  margin-top: 0.35rem;
}

.breakdown-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin-top: 1rem;
}

.breakdown-table th, .breakdown-table td {
  padding: 0.625rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--color-surface-border);
}

.breakdown-table th {
  font-weight: 700;
  color: var(--color-primary-700);
  background-color: rgba(255, 255, 255, 0.5);
}

.breakdown-table td:last-child {
  text-align: right;
  font-weight: 700;
  color: var(--color-primary-900);
}

/* Macro Bar Visualizer */
.macro-bar {
  display: flex;
  height: 0.875rem;
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: 1rem 0 0.5rem;
}

.macro-segment {
  height: 100%;
  transition: width var(--transition-base);
}

.macro-protein { background-color: #0d9488; }
.macro-carb { background-color: #3b82f6; }
.macro-fat { background-color: #f59e0b; }

.macro-legend {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 600;
}

.legend-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
}

/* --------------------------------------------------------------------------
   9. Clinical Guides Grid & Cards
   -------------------------------------------------------------------------- */
.guides-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .guides-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .guides-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.guide-card {
  background-color: #ffffff;
  border-radius: 16px;
  border: 1px solid var(--color-surface-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 10px -2px rgba(15, 23, 42, 0.05);
  transition: all 0.25s ease;
}

.guide-card:hover {
  box-shadow: 0 12px 28px -4px rgba(15, 23, 42, 0.1);
  border-color: #cbd5e1;
  transform: translateY(-4px);
}

.guide-card-header {
  padding: 1.25rem 1.25rem 0.5rem;
}

.guide-meta-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.625rem;
}

.category-chip {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background-color: var(--color-surface-subtle);
  color: var(--color-primary-700);
}

.reviewed-chip {
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background-color: var(--color-verified-bg);
  color: var(--color-verified-text);
  border: 1px solid var(--color-verified-border);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.guide-card-title {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-primary-950);
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.8rem;
}

.guide-card-title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.guide-card-title a:hover {
  color: var(--color-teal-700);
}

.guide-card-excerpt {
  font-size: 0.8125rem;
  color: var(--color-primary-600);
  line-height: 1.5;
  margin-bottom: 1rem;
  padding: 0 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.guide-card-footer {
  padding: 0.875rem 1.25rem;
  background-color: var(--color-surface-bg);
  border-top: 1px solid var(--color-surface-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
}

.author-mini {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.author-avatar-sm {
  width: 1.875rem;
  height: 1.875rem;
  border-radius: 50%;
  background-color: var(--color-teal-100);
  color: var(--color-teal-800);
  font-weight: 700;
  font-size: 0.6875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-teal-500);
}

.read-time {
  color: var(--color-text-subtle);
  font-weight: 500;
}

/* Guide Card Thumbnail Media (Fixed Uniform Shape) */
.guide-card-image {
  position: relative;
  width: 100%;
  height: 190px !important;
  max-height: 190px !important;
  overflow: hidden;
  background-color: var(--color-surface-subtle);
  border-bottom: 1px solid var(--color-surface-border);
  display: block;
}

.guide-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.guide-card:hover .guide-card-image img {
  transform: scale(1.05);
}

/* Clinical Article Lead Figure */
.article-lead-figure {
  margin: 2rem 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-surface-border);
  background-color: var(--color-surface-subtle);
  box-shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.05);
}

.article-lead-figure img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  object-position: center;
  display: block;
}

.article-lead-caption {
  padding: 0.875rem 1.25rem;
  font-size: 0.8125rem;
  color: var(--color-primary-700);
  background-color: #ffffff;
  border-top: 1px solid var(--color-surface-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.article-lead-caption strong {
  color: var(--color-primary-950);
}

.article-lead-caption .caption-credit {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Hero Visual Showcase */
.hero-visual-card {
  margin: 2.25rem auto 0 !important;
  width: 100% !important;
  max-width: 860px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-surface-border);
  box-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.08);
  background-color: #ffffff;
  position: relative;
  display: block;
}

.hero-visual-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero-visual-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0) 0%, rgba(15, 23, 42, 0.75) 30%, rgba(15, 23, 42, 0.95) 100%);
  padding: 1.5rem 2rem;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  z-index: 2;
}

@media (max-width: 640px) {
  .hero-visual-card img {
    height: 220px;
  }
  .hero-visual-caption {
    padding: 0.875rem 1rem;
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-visual-caption p {
    display: none;
  }
}

.hero-visual-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(13, 148, 136, 0.9);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   10. E-E-A-T Trust Section
   -------------------------------------------------------------------------- */
.trust-section {
  background-color: var(--color-primary-900);
  color: #ffffff;
  padding: 5rem 0;
  position: relative;
}

.trust-section .section-title {
  color: #ffffff;
}

.trust-section .section-description {
  color: #cbd5e1;
}

.trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .trust-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.trust-card {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: 2rem 1.5rem;
  text-align: left;
  transition: background-color var(--transition-fast);
}

.trust-card:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

.trust-icon {
  width: 3rem;
  height: 3rem;
  background-color: rgba(13, 148, 136, 0.2);
  border: 1px solid var(--color-teal-500);
  color: #2dd4bf;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.trust-card h3 {
  color: #ffffff;
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.trust-card p {
  color: #94a3b8;
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   11. E-E-A-T Article Layout & Reader Components
   -------------------------------------------------------------------------- */
/* Sticky Reading Progress Bar */
.reading-progress-container {
  position: fixed;
  top: 4.25rem;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: transparent;
  z-index: 45;
}

.reading-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-teal-500), #38bdf8);
  width: 0%;
  transition: width 50ms linear;
}

/* Article Hero Header */
.article-header {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--color-surface-border);
  background-color: #ffffff;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  margin-bottom: 1.25rem;
}

.breadcrumbs a {
  color: var(--color-primary-600);
}

.breadcrumbs span.separator {
  color: var(--color-surface-border-strong);
}

.article-title {
  font-size: clamp(2rem, 3.5vw + 0.5rem, 2.75rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--color-primary-950);
  margin-bottom: 1.25rem;
}

/* Author & Reviewer Meta Card */
.article-meta-box {
  background-color: var(--color-surface-bg);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

@media (min-width: 640px) {
  .article-meta-box {
    grid-template-columns: 1fr 1fr;
  }
}

.meta-profile {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.profile-avatar {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background-color: var(--color-teal-100);
  color: var(--color-teal-800);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9375rem;
  border: 2px solid #ffffff;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.profile-info {
  display: flex;
  flex-direction: column;
}

.profile-role {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-500);
  margin-bottom: 0.125rem;
}

.profile-name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary-900);
}

.profile-credentials {
  font-size: 0.75rem;
  color: var(--color-primary-600);
  line-height: 1.3;
}

.verify-link {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-teal-600);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
  margin-top: 0.25rem;
}

.verify-link:hover {
  text-decoration: underline;
}

.article-dates {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-surface-border);
}

/* Executive Summary Box ("Key Takeaways") */
.key-takeaways-box {
  background-color: var(--color-info-bg);
  border-left: 4px solid #2563eb;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: 1.5rem;
  margin: 2rem 0;
}

.key-takeaways-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.0625rem;
  color: #1e3a8a;
  margin-bottom: 0.75rem;
}

.key-takeaways-box ul {
  margin-bottom: 0;
  padding-left: 1.25rem;
  color: #1e40af;
}

.key-takeaways-box li {
  margin-bottom: 0.5rem;
}

.key-takeaways-box li:last-child {
  margin-bottom: 0;
}

/* Article Layout: Two Column (Content + Sidebar) */
.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding: 3rem 0;
}

@media (min-width: 1024px) {
  .article-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
  }
}

.article-main {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-primary-800);
}

.article-main h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 2.5rem 0 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-surface-border);
}

.article-main h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 1.75rem 0 0.75rem;
}

/* Data Tables */
.clinical-table-wrapper {
  overflow-x: auto;
  margin: 1.75rem 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-surface-border);
  box-shadow: var(--shadow-sm);
}

.clinical-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  background-color: #ffffff;
}

.clinical-table th {
  background-color: var(--color-primary-900);
  color: #ffffff;
  padding: 0.875rem 1rem;
  font-weight: 700;
  text-align: left;
}

.clinical-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--color-surface-border);
  color: var(--color-primary-800);
}

.clinical-table tr:nth-child(even) td {
  background-color: var(--color-surface-subtle);
}

.clinical-table tr:hover td {
  background-color: var(--color-teal-50);
}

/* Callout Blocks */
.callout {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  margin: 1.75rem 0;
  border-left: 4px solid;
}

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

.callout-warning {
  background-color: var(--color-warning-bg);
  border-left-color: #d97706;
  color: var(--color-warning-text);
}

.callout-warning strong {
  color: #78350f;
}

.callout-danger {
  background-color: var(--color-danger-bg);
  border-left-color: #dc2626;
  color: var(--color-danger-text);
}

.callout-info {
  background-color: var(--color-teal-50);
  border-left-color: var(--color-teal-600);
  color: var(--color-teal-900);
}

/* Numbered Scientific References */
.references-section {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 2px solid var(--color-surface-border);
}

.references-section h2 {
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
  border-top: none;
  padding-top: 0;
}

.references-list {
  list-style: decimal;
  padding-left: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-primary-600);
}

.references-list li {
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

.ref-pmid {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background-color: var(--color-surface-subtle);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  color: var(--color-teal-700);
  margin-left: 0.35rem;
}

/* Sidebar & Sticky Table of Contents */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-sticky-wrap {
  position: sticky;
  top: 5.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.toc-card {
  background-color: #ffffff;
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-xl);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.toc-title {
  font-size: 0.875rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-500);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.toc-link {
  font-size: 0.875rem;
  color: var(--color-primary-700);
  text-decoration: none;
  display: block;
  padding: 0.35rem 0.625rem;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
}

.toc-link:hover, .toc-link.active {
  color: var(--color-teal-700);
  background-color: var(--color-teal-50);
  border-left-color: var(--color-teal-600);
  text-decoration: none;
  font-weight: 600;
}

/* Social Share Bar */
.share-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-surface-border);
  background-color: #ffffff;
  color: var(--color-primary-700);
  font-size: 0.8125rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.share-btn:hover {
  background-color: var(--color-surface-subtle);
  color: var(--color-primary-900);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   12. Standard IAB Ad Placement Slots (Zero CLS Safeguards)
   -------------------------------------------------------------------------- */
.ad-slot-wrapper {
  margin: 2rem auto !important;
  width: 100% !important;
  max-width: 1200px !important;
  padding: 0 1.5rem;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  text-align: center !important;
}

.container.ad-slot-wrapper {
  margin-left: auto !important;
  margin-right: auto !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  text-align: center !important;
}

.ad-label {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #94a3b8;
  margin-bottom: 0.35rem;
  text-align: center;
  display: block;
  width: 100%;
}

/* Header Leaderboard (728x90 desktop / 320x50 mobile) */
.ad-container-leaderboard {
  width: 100%;
  max-width: 728px;
  min-height: 90px;
  margin-left: auto !important;
  margin-right: auto !important;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-size: 0.75rem;
  font-weight: 500;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.02);
}

/* In-Article Non-Intrusive Ad */
.ad-container-inarticle {
  width: 100%;
  max-width: 640px;
  min-height: 250px;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-size: 0.75rem;
  font-weight: 500;
  text-align: center;
  margin: 2.25rem auto;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.02);
}

/* Sidebar Medium Rectangle (300x250) */
.ad-container-sidebar {
  width: 300px;
  min-height: 250px;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-size: 0.75rem;
  font-weight: 500;
  text-align: center;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   13. Verification Modal (Medical Review Audit)
   -------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(4px);
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  max-width: 540px;
  width: 100%;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid var(--color-surface-border);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  background-color: var(--color-primary-900);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  color: #ffffff;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-body {
  padding: 1.5rem;
  font-size: 0.9375rem;
  color: var(--color-primary-800);
}

.verify-badge-large {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background-color: var(--color-verified-bg);
  color: var(--color-verified-text);
  border: 1px solid var(--color-verified-border);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.8125rem;
  margin-bottom: 1rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  background-color: var(--color-surface-subtle);
  border-top: 1px solid var(--color-surface-border);
  display: flex;
  justify-content: flex-end;
}

/* --------------------------------------------------------------------------
   14. Global Clinical Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-primary-950);
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
  margin-top: auto;
  border-top: 1px solid var(--color-primary-800);
  font-size: 0.875rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

.footer-brand h4 {
  color: #ffffff;
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  color: #94a3b8;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.footer-col h5 {
  color: #ffffff;
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #2dd4bf;
  text-decoration: none;
}

.footer-disclaimer-card {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2.5rem;
}

.footer-disclaimer-card h6 {
  color: #f59e0b;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.footer-disclaimer-card p {
  color: #94a3b8;
  font-size: 0.8125rem;
  line-height: 1.5;
  margin-bottom: 0;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8125rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

/* --------------------------------------------------------------------------
   15. Toast Notification
   -------------------------------------------------------------------------- */
.toast-notice {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--color-primary-900);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 150;
  transform: translateY(150%);
  transition: transform var(--transition-base);
}

.toast-notice.show {
  transform: translateY(0);
}