/* BODY FAT PERCENTAGE CALCULATOR - STYLESHEET - Slate Professional Theme */
:root {
  --primary: #475569;
  --primary-dark: #334155;
  --primary-light: #64748b;
  --primary-bg: #f1f5f9;
  --secondary: #1e293b;
  --accent: #f97316;
  --success: #22c55e;
  --success-bg: #dcfce7;
  --warning: #f59e0b;
  --warning-bg: #fef3c7;
  --error: #ef4444;
  --error-bg: #fee2e2;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-sans); font-size: 16px; line-height: 1.6; color: var(--gray-800); background: var(--gray-50); min-height: 100vh; display: flex; flex-direction: column; }
h1, h2, h3 { font-weight: 600; line-height: 1.3; color: var(--gray-900); }
h1 { font-size: 2.25rem; margin-bottom: 1rem; }
h2 { font-size: 1.5rem; margin-top: 2rem; margin-bottom: 1rem; }
h3 { font-size: 1.125rem; margin-top: 1.5rem; margin-bottom: 0.75rem; }
p { margin-bottom: 1rem; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-light); text-decoration: underline; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1rem; }
.content-narrow { max-width: 800px; margin: 0 auto; }
main { flex: 1; padding: 2rem 0 3rem; }

/* Header */
.header { background: var(--secondary); border-bottom: 1px solid var(--primary-dark); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 0.5rem; font-weight: 700; font-size: 1.125rem; color: white; text-decoration: none; }
.logo:hover { text-decoration: none; color: var(--gray-200); }
.logo-icon { width: 32px; height: 32px; color: var(--accent); }
.nav-desktop { display: flex; align-items: center; gap: 1.5rem; }
.nav-desktop a { font-size: 0.9375rem; font-weight: 500; color: rgba(255,255,255,0.8); padding: 0.5rem 0; border-bottom: 2px solid transparent; }
.nav-desktop a:hover, .nav-desktop a.active { color: white; text-decoration: none; border-bottom-color: var(--accent); }
.nav-toggle { display: none; background: none; border: none; padding: 0.5rem; cursor: pointer; color: white; }
.nav-toggle svg { width: 24px; height: 24px; }
.nav-mobile { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--secondary); padding: 1rem; box-shadow: var(--shadow-lg); z-index: 99; }
.nav-mobile.active { display: block; }
.nav-mobile a { display: block; padding: 0.75rem 1rem; color: rgba(255,255,255,0.9); font-weight: 500; border-radius: var(--radius-md); min-height: 44px; }
@media (max-width: 768px) { .nav-desktop { display: none; } .nav-toggle { display: block; } }

/* Intro */
.intro-text { font-size: 1.125rem; color: var(--gray-600); margin-bottom: 1.5rem; max-width: 800px; margin-left: auto; margin-right: auto; }

/* Calculator Card - Compact 720px */
.calculator-card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  margin-bottom: 1.5rem;
  overflow: hidden;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* Tabs */
.calc-tabs { display: flex; background: var(--gray-100); border-bottom: 1px solid var(--gray-200); overflow-x: auto; }
.calc-tab {
  flex: 1;
  min-width: 80px;
  padding: 0.875rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray-600);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  border-bottom: 3px solid transparent;
  transition: all 0.15s ease;
}
.calc-tab:hover { color: var(--gray-800); background: var(--gray-50); }
.calc-tab.active { color: var(--primary-dark); background: white; border-bottom-color: var(--accent); }
.calc-tab svg { width: 20px; height: 20px; }
.calc-tab-label { white-space: nowrap; }
.calc-panel { display: none; padding: 1.25rem; }
.calc-panel.active { display: block; }

/* Form Elements */
.form-grid { display: grid; gap: 1rem; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
.form-row-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 600px) { .form-row, .form-row-3 { grid-template-columns: 1fr; } }
.form-group { display: flex; flex-direction: column; gap: 0.375rem; }
.form-label { font-size: 0.875rem; font-weight: 500; color: var(--gray-700); }
.form-hint { font-size: 0.75rem; color: var(--gray-500); }
.form-input, .form-select {
  width: 100%;
  height: 44px;
  padding: 0 0.875rem;
  font-size: 1rem;
  color: var(--gray-800);
  background: white;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-input:focus, .form-select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-bg); }
.form-select { cursor: pointer; -webkit-appearance: none; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.75rem center; background-size: 1rem; padding-right: 2.5rem; }

/* Radio Options */
.radio-group { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.radio-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  min-height: 44px;
  transition: all 0.15s ease;
}
.radio-option:hover { border-color: var(--primary-light); background: var(--primary-bg); }
.radio-option:has(input:checked) { border-color: var(--primary); background: var(--primary-bg); }
.radio-option input { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }

/* Calculate Button */
.calculate-btn {
  width: 100%;
  height: 48px;
  margin-top: 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 14px 0 rgba(71, 85, 105, 0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.calculate-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px 0 rgba(71, 85, 105, 0.5); }
.calculate-btn svg { width: 20px; height: 20px; }

/* Results Section - Wider 800px */
.results-section {
  display: none;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--gray-200);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.results-section.visible { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Primary Result Display */
.result-primary {
  text-align: center;
  padding: 1.25rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-bg) 0%, #e2e8f0 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-300);
}
.result-label { font-size: 0.8125rem; font-weight: 500; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.025em; margin-bottom: 0.375rem; }
.result-value { font-size: 2.75rem; font-weight: 700; color: var(--primary-dark); line-height: 1.2; }
.result-unit { font-size: 1.125rem; font-weight: 500; color: var(--gray-500); }
.result-sublabel { font-size: 0.9375rem; color: var(--gray-600); margin-top: 0.375rem; }
.result-category { display: inline-block; padding: 0.25rem 0.75rem; border-radius: var(--radius-full); font-size: 0.8125rem; font-weight: 600; margin-top: 0.5rem; }
.category-essential { background: #dbeafe; color: #1d4ed8; }
.category-athlete { background: #dcfce7; color: #16a34a; }
.category-fitness { background: #d1fae5; color: #059669; }
.category-average { background: #fef3c7; color: #d97706; }
.category-obese { background: #fee2e2; color: #dc2626; }

/* Results Grid */
.results-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; margin-top: 1rem; }
.results-grid-3 { grid-template-columns: repeat(3, 1fr); }
.results-grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 600px) { .results-grid, .results-grid-3, .results-grid-4 { grid-template-columns: repeat(2, 1fr); } }
.result-item { padding: 0.875rem; background: var(--gray-50); border-radius: var(--radius-md); text-align: center; border: 1px solid var(--gray-200); }
.result-item-label { font-size: 0.6875rem; color: var(--gray-500); margin-bottom: 0.25rem; text-transform: uppercase; letter-spacing: 0.025em; }
.result-item-value { font-size: 1.125rem; font-weight: 600; color: var(--gray-800); }

/* Body Fat Visual Chart */
.bf-chart { margin: 1.25rem 0; }
.bf-chart-bar { height: 36px; border-radius: var(--radius-full); display: flex; overflow: hidden; font-size: 0.625rem; font-weight: 600; }
.bf-chart-segment { display: flex; align-items: center; justify-content: center; color: white; text-shadow: 0 1px 2px rgba(0,0,0,0.2); }
.bf-essential { background: #3b82f6; }
.bf-athlete { background: #22c55e; }
.bf-fitness { background: #84cc16; }
.bf-average { background: #f59e0b; }
.bf-obese { background: #ef4444; }
.bf-chart-marker { position: relative; height: 24px; margin-top: 0.25rem; }
.bf-marker { position: absolute; transform: translateX(-50%); text-align: center; }
.bf-marker::before { content: ''; display: block; width: 2px; height: 8px; background: var(--primary-dark); margin: 0 auto 2px; }
.bf-marker-label { font-size: 0.75rem; font-weight: 600; color: var(--primary-dark); white-space: nowrap; background: white; padding: 0 4px; border-radius: 2px; }

/* Army Status */
.army-status { padding: 1rem; border-radius: var(--radius-lg); margin-top: 1rem; text-align: center; }
.army-pass { background: var(--success-bg); border: 1px solid var(--success); }
.army-fail { background: var(--error-bg); border: 1px solid var(--error); }
.army-status-icon { font-size: 1.5rem; }
.army-status-text { font-size: 1rem; font-weight: 600; margin-top: 0.25rem; }

/* Enhanced Results Components */
.results-report { margin-top: 1.5rem; }
.results-report-title { font-size: 1rem; font-weight: 600; color: var(--gray-800); margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--accent); }

/* Results Subheading */
.results-subheading { font-size: 0.9375rem; font-weight: 600; color: var(--gray-700); margin: 1.25rem 0 0.75rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--gray-200); }

/* Input Summary */
.input-summary { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 0.75rem 0.875rem; margin-bottom: 1rem; display: flex; flex-wrap: wrap; gap: 0.375rem 1rem; font-size: 0.8125rem; }
.input-summary-title { font-size: 0.75rem; font-weight: 600; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.input-summary-grid { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; font-size: 0.875rem; }
.input-summary-item { color: var(--gray-600); }
.input-summary-item strong { color: var(--gray-800); font-weight: 600; }

/* Key Results Table */
.key-results-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; margin-bottom: 1rem; }
.key-results-table th, .key-results-table td { padding: 0.625rem 0.75rem; text-align: left; border-bottom: 1px solid var(--gray-200); }
.key-results-table th { font-weight: 600; color: var(--gray-600); background: var(--gray-50); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.025em; }
.key-results-table td { color: var(--gray-700); }
.key-results-table td:nth-child(2) { font-weight: 600; color: var(--gray-900); }
.key-results-table tr:last-child td { border-bottom: none; }

/* Actionable Tips Grid */
.tips-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin: 1rem 0; }
@media (max-width: 768px) { .tips-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .tips-grid { grid-template-columns: 1fr; } }
.tip-card { padding: 0.875rem; background: white; border: 1px solid var(--gray-200); border-radius: var(--radius-md); }
.tip-card-title { font-size: 0.8125rem; font-weight: 600; color: var(--gray-800); margin-bottom: 0.375rem; display: flex; align-items: center; gap: 0.375rem; }
.tip-card-title::before { content: ''; display: inline-block; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.tip-card p { font-size: 0.8125rem; color: var(--gray-600); margin: 0; line-height: 1.5; }

/* What This Means Section */
.interpretation-box { background: #f0f9ff; border: 1px solid #bae6fd; border-radius: var(--radius-md); padding: 1rem; margin: 1rem 0; }
.interpretation-box p { margin: 0; font-size: 0.9375rem; color: #0c4a6e; line-height: 1.6; }
.interpretation-box p + p { margin-top: 0.75rem; }

/* Print Button */
.print-btn { display: inline-flex; align-items: center; gap: 0.375rem; padding: 0.5rem 0.875rem; font-size: 0.8125rem; font-weight: 500; color: var(--gray-600); background: var(--gray-100); border: 1px solid var(--gray-300); border-radius: var(--radius-md); cursor: pointer; margin-top: 1rem; transition: all 0.15s ease; }
.print-btn:hover { background: var(--gray-200); color: var(--gray-800); }
.print-btn svg { width: 16px; height: 16px; }
@media print {
  .header, .nav-mobile, .footer, .calculate-btn, .print-btn, .calc-tabs { display: none !important; }
  .calculator-card, .results-section, .content-section { box-shadow: none !important; border: 1px solid #ddd !important; }
  .results-section { display: block !important; }
  body { background: white !important; }
}

/* Progress Bar */
.progress-bar-container { margin: 1rem 0; }
.progress-bar-label { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--gray-500); margin-bottom: 0.25rem; }
.progress-bar { height: 8px; background: var(--gray-200); border-radius: var(--radius-full); overflow: hidden; }
.progress-bar-fill { height: 100%; border-radius: var(--radius-full); transition: width 0.3s ease; }
.progress-bar-fill.good { background: var(--success); }
.progress-bar-fill.warning { background: var(--warning); }
.progress-bar-fill.danger { background: var(--error); }

/* Content Section - 800px width */
.content-section {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.content-section h2 { margin-top: 0; }
.content-section h2::after { content: ''; display: block; width: 60px; height: 3px; background: var(--accent); margin-top: 0.5rem; border-radius: var(--radius-full); }

/* Data Tables */
.table-responsive { overflow-x: auto; margin: 1.25rem 0; -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.data-table th, .data-table td { padding: 0.625rem 0.875rem; text-align: left; border-bottom: 1px solid var(--gray-200); }
.data-table th { font-weight: 600; color: var(--gray-700); background: var(--gray-50); white-space: nowrap; }
.data-table td { color: var(--gray-600); }

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.faq-item { border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; }
.faq-question {
  width: 100%;
  padding: 0.875rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9375rem;
  font-weight: 500;
  text-align: left;
  color: var(--gray-800);
  background: var(--gray-50);
  border: none;
  cursor: pointer;
  min-height: 44px;
}
.faq-question:hover { background: var(--gray-100); }
.faq-question svg { width: 18px; height: 18px; color: var(--gray-400); transition: transform 0.15s ease; flex-shrink: 0; }
.faq-item.open .faq-question svg { transform: rotate(180deg); }
.faq-answer { display: none; padding: 1rem; background: white; }
.faq-item.open .faq-answer { display: block; }

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.blog-card { background: white; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--gray-200); overflow: hidden; transition: transform 0.15s ease, box-shadow 0.15s ease; }
.blog-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.blog-card-content { padding: 1rem; }
.blog-card-meta { font-size: 0.6875rem; color: var(--gray-500); margin-bottom: 0.375rem; text-transform: uppercase; letter-spacing: 0.025em; }
.blog-card h3 { margin: 0 0 0.375rem; font-size: 1rem; }
.blog-card h3 a { color: var(--gray-900); }
.blog-card p { font-size: 0.8125rem; color: var(--gray-600); margin-bottom: 0; line-height: 1.5; }

/* Footer */
.footer { background: var(--gray-900); color: var(--gray-400); padding: 2.5rem 0 1.5rem; margin-top: auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand .logo { color: white; margin-bottom: 1rem; }
.footer-brand .logo-icon { color: var(--accent); }
.footer-brand p { font-size: 0.875rem; }
.footer-nav h4 { color: white; font-size: 0.8125rem; font-weight: 600; text-transform: uppercase; margin-bottom: 1rem; }
.footer-nav ul { list-style: none; }
.footer-nav li { margin-bottom: 0.5rem; }
.footer-nav a { font-size: 0.875rem; color: var(--gray-400); }
.footer-nav a:hover { color: white; text-decoration: none; }
.footer-bottom { padding-top: 1.5rem; border-top: 1px solid var(--gray-800); font-size: 0.8125rem; }

/* Utility Classes */
.text-center { text-align: center; }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }

/* ============================================
   BLOG CONTENT ENHANCEMENT COMPONENTS
   ============================================ */

/* Blog Body Fat Chart - Colored horizontal bar */
.blog-bf-chart { margin: 1.5rem 0; }
.blog-bf-chart-label { font-size: 0.875rem; font-weight: 600; color: var(--gray-700); margin-bottom: 0.5rem; }
.blog-bf-chart-bar { height: 40px; border-radius: var(--radius-lg); display: flex; overflow: hidden; font-size: 0.6875rem; font-weight: 600; }
.blog-bf-chart-bar .seg { display: flex; align-items: center; justify-content: center; color: white; text-shadow: 0 1px 2px rgba(0,0,0,0.2); white-space: nowrap; padding: 0 0.25rem; }
.seg-essential { background: #3b82f6; }
.seg-athlete { background: #22c55e; }
.seg-fitness { background: #84cc16; }
.seg-average { background: #f59e0b; }
.seg-obese { background: #ef4444; }
.blog-bf-chart-legend { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.5rem; font-size: 0.75rem; color: var(--gray-600); }
.blog-bf-chart-legend span { display: flex; align-items: center; gap: 0.25rem; }
.blog-bf-chart-legend span::before { content: ''; display: inline-block; width: 12px; height: 12px; border-radius: 2px; }
.blog-bf-chart-legend .leg-essential::before { background: #3b82f6; }
.blog-bf-chart-legend .leg-athlete::before { background: #22c55e; }
.blog-bf-chart-legend .leg-fitness::before { background: #84cc16; }
.blog-bf-chart-legend .leg-average::before { background: #f59e0b; }
.blog-bf-chart-legend .leg-obese::before { background: #ef4444; }

/* Comparison Bars - Horizontal bars comparing values */
.comparison-bars { margin: 1.5rem 0; }
.comparison-bars-title { font-size: 0.9375rem; font-weight: 600; color: var(--gray-800); margin-bottom: 0.75rem; }
.comp-bar-item { margin-bottom: 0.625rem; }
.comp-bar-label { display: flex; justify-content: space-between; font-size: 0.8125rem; color: var(--gray-700); margin-bottom: 0.25rem; }
.comp-bar-label span:last-child { font-weight: 600; color: var(--gray-800); }
.comp-bar-track { height: 24px; background: var(--gray-100); border-radius: var(--radius-full); overflow: hidden; }
.comp-bar-fill { height: 100%; border-radius: var(--radius-full); display: flex; align-items: center; padding-left: 0.5rem; font-size: 0.6875rem; font-weight: 600; color: white; transition: width 0.3s ease; }
.comp-bar-fill.bar-blue { background: #3b82f6; }
.comp-bar-fill.bar-green { background: #22c55e; }
.comp-bar-fill.bar-lime { background: #84cc16; }
.comp-bar-fill.bar-amber { background: #f59e0b; }
.comp-bar-fill.bar-red { background: #ef4444; }
.comp-bar-fill.bar-purple { background: #8b5cf6; }
.comp-bar-fill.bar-slate { background: var(--primary); }

/* Callout Boxes */
.callout { padding: 1rem 1.25rem; border-radius: var(--radius-lg); margin: 1.5rem 0; border-left: 4px solid; }
.callout-title { font-size: 0.9375rem; font-weight: 600; margin-bottom: 0.5rem; display: flex; align-items: center; gap: 0.375rem; }
.callout p, .callout ul { font-size: 0.875rem; line-height: 1.6; margin-bottom: 0.5rem; }
.callout ul { padding-left: 1.25rem; }
.callout li { margin-bottom: 0.25rem; }
.callout p:last-child, .callout ul:last-child { margin-bottom: 0; }
.callout-info { background: #eff6ff; border-color: #3b82f6; color: #1e3a5f; }
.callout-info .callout-title { color: #1d4ed8; }
.callout-tip { background: #f0fdf4; border-color: #22c55e; color: #14532d; }
.callout-tip .callout-title { color: #16a34a; }
.callout-warning { background: #fefce8; border-color: #f59e0b; color: #713f12; }
.callout-warning .callout-title { color: #d97706; }
.callout-success { background: #f0fdf4; border-color: #22c55e; color: #14532d; }
.callout-success .callout-title { color: #16a34a; }
.callout-key { background: #f1f5f9; border-color: var(--primary); color: var(--gray-700); }
.callout-key .callout-title { color: var(--primary-dark); }

/* Related Articles Grid */
.related-articles { margin-top: 2rem; padding-top: 1.5rem; border-top: 2px solid var(--gray-200); }
.related-articles h2 { font-size: 1.25rem; margin-top: 0; margin-bottom: 1rem; }
.related-articles h2::after { content: ''; display: block; width: 60px; height: 3px; background: var(--accent); margin-top: 0.5rem; border-radius: var(--radius-full); }
.related-articles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; }
.related-article-card { padding: 1rem; background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius-lg); transition: transform 0.15s ease, box-shadow 0.15s ease; }
.related-article-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.related-article-card a { color: var(--gray-900); font-weight: 600; font-size: 0.9375rem; line-height: 1.4; display: block; text-decoration: none; }
.related-article-card a:hover { color: var(--primary); text-decoration: none; }
.related-article-card p { font-size: 0.8125rem; color: var(--gray-500); margin: 0.375rem 0 0; }

/* Stat Highlights */
.stat-highlights { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 0.75rem; margin: 1.5rem 0; }
.stat-highlight { text-align: center; padding: 1rem 0.75rem; background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius-lg); }
.stat-highlight-value { font-size: 1.5rem; font-weight: 700; color: var(--primary-dark); line-height: 1.2; }
.stat-highlight-label { font-size: 0.75rem; color: var(--gray-500); margin-top: 0.25rem; text-transform: uppercase; letter-spacing: 0.025em; }

/* Comparison Layout - Side by Side */
.comparison-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.5rem 0; }
@media (max-width: 600px) { .comparison-layout { grid-template-columns: 1fr; } }
.comparison-column { padding: 1rem; border-radius: var(--radius-lg); border: 1px solid var(--gray-200); }
.comparison-column h3 { font-size: 1rem; margin-top: 0; margin-bottom: 0.75rem; }
.comparison-column ul { padding-left: 1.25rem; font-size: 0.875rem; }
.comparison-column li { margin-bottom: 0.375rem; }
.col-men { background: #eff6ff; border-color: #bfdbfe; }
.col-men h3 { color: #1d4ed8; }
.col-women { background: #fdf2f8; border-color: #fbcfe8; }
.col-women h3 { color: #be185d; }
.col-positive { background: #f0fdf4; border-color: #bbf7d0; }
.col-positive h3 { color: #16a34a; }
.col-negative { background: #fef2f2; border-color: #fecaca; }
.col-negative h3 { color: #dc2626; }

/* Visual Scale */
.visual-scale { margin: 1.5rem 0; }
.visual-scale-label { font-size: 0.875rem; font-weight: 600; color: var(--gray-700); margin-bottom: 0.5rem; }
.visual-scale-bar { height: 28px; border-radius: var(--radius-full); background: linear-gradient(to right, #3b82f6, #22c55e, #84cc16, #f59e0b, #ef4444); position: relative; }
.visual-scale-marker { position: absolute; top: -6px; transform: translateX(-50%); width: 4px; height: 40px; background: var(--gray-900); border-radius: 2px; }
.visual-scale-marker::after { content: attr(data-label); position: absolute; top: 44px; left: 50%; transform: translateX(-50%); font-size: 0.75rem; font-weight: 600; color: var(--gray-800); white-space: nowrap; background: white; padding: 0.125rem 0.375rem; border-radius: 4px; border: 1px solid var(--gray-200); }
.visual-scale-labels { display: flex; justify-content: space-between; font-size: 0.6875rem; color: var(--gray-500); margin-top: 2rem; }

/* CTA Box */
.cta-box { background: linear-gradient(135deg, var(--primary-bg) 0%, #e2e8f0 100%); border: 1px solid var(--gray-300); border-radius: var(--radius-xl); padding: 1.5rem; text-align: center; margin: 2rem 0; }
.cta-box h3 { font-size: 1.125rem; color: var(--gray-900); margin: 0 0 0.5rem; }
.cta-box p { font-size: 0.9375rem; color: var(--gray-600); margin-bottom: 1rem; }
.cta-btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1.5rem; font-size: 1rem; font-weight: 600; color: white; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); border-radius: var(--radius-lg); text-decoration: none; box-shadow: 0 4px 14px 0 rgba(71, 85, 105, 0.4); transition: transform 0.15s ease, box-shadow 0.15s ease; }
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px 0 rgba(71, 85, 105, 0.5); color: white; text-decoration: none; }

/* Enhanced Table Variants */
.data-table-striped tbody tr:nth-child(even) { background: var(--gray-50); }
.data-table-striped tbody tr:hover { background: #eff6ff; }
.row-highlight { background: #eff6ff !important; font-weight: 600; }
.data-table-compact th, .data-table-compact td { padding: 0.375rem 0.625rem; font-size: 0.8125rem; }