/* ApexBearing - Profile 1 Design System (ab-*) */
:root {
  --ab-navy: #0f172a;
  --ab-slate: #1e293b;
  --ab-steel: #334155;
  --ab-muted: #64748b;
  --ab-light-muted: #94a3b8;
  --ab-border: #e2e8f0;
  --ab-emerald: #10b981;
  --ab-emerald-dark: #059669;
  --ab-emerald-light: #ecfdf5;
  --ab-emerald-border: #a7f3d0;
  --ab-bg: #f8fafc;
  --ab-card: #ffffff;
  --ab-radius: 12px;
  --ab-radius-sm: 6px;
  --ab-radius-lg: 16px;
  --ab-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
  --ab-shadow-lg: 0 10px 30px -4px rgba(15, 23, 42, 0.1);
  --ab-font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ab-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--ab-font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ab-slate);
  background-color: var(--ab-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ab-emerald-dark);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--ab-emerald);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.ab-container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Navigation */
.ab-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ab-border);
}

.ab-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.ab-logo-link {
  display: flex;
  align-items: center;
}

.ab-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.ab-nav-link {
  font-family: var(--ab-font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ab-steel);
  transition: color 0.2s ease;
}

.ab-nav-link:hover, .ab-nav-link.active {
  color: var(--ab-emerald-dark);
}

.ab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  font-family: var(--ab-font-display);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--ab-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.ab-btn-primary {
  background-color: var(--ab-emerald);
  color: #ffffff;
}

.ab-btn-primary:hover {
  background-color: var(--ab-emerald-dark);
  color: #ffffff;
}

.ab-btn-outline {
  background-color: transparent;
  border-color: var(--ab-navy);
  color: var(--ab-navy);
}

.ab-btn-outline:hover {
  background-color: var(--ab-navy);
  color: #ffffff;
}

.ab-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.ab-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--ab-navy);
  margin: 5px 0;
  transition: 0.2s;
}

/* Split-Screen 50/50 Hero (Profile 1) */
.ab-hero-split {
  padding: 70px 0 50px;
  background: linear-gradient(135deg, #f8fafc 0%, #ecfdf5 100%);
  border-bottom: 1px solid var(--ab-border);
}

.ab-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.ab-badge {
  display: inline-block;
  padding: 6px 14px;
  font-family: var(--ab-font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background-color: var(--ab-emerald-light);
  color: var(--ab-emerald-dark);
  border: 1px solid var(--ab-emerald-border);
  border-radius: 999px;
  margin-bottom: 20px;
}

.ab-hero-title {
  font-family: var(--ab-font-display);
  font-size: 2.7rem;
  line-height: 1.15;
  font-weight: 800;
  color: var(--ab-navy);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.ab-hero-desc {
  font-size: 1.12rem;
  color: var(--ab-steel);
  line-height: 1.7;
  margin-bottom: 32px;
}

.ab-hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.ab-hero-img-box {
  background-color: var(--ab-card);
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius-lg);
  padding: 20px;
  box-shadow: var(--ab-shadow-lg);
}

/* Interactive Pace & Heart Rate Zones Calculator */
.ab-calculator-section {
  padding: 60px 0;
  background-color: #ffffff;
  border-bottom: 1px solid var(--ab-border);
}

.ab-calc-box {
  max-width: 860px;
  margin: 0 auto;
  background-color: var(--ab-bg);
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius-lg);
  padding: 40px;
  box-shadow: var(--ab-shadow);
}

.ab-calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.ab-calc-group {
  display: flex;
  flex-direction: column;
}

.ab-calc-label {
  font-family: var(--ab-font-display);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--ab-slate);
  margin-bottom: 8px;
}

.ab-calc-input {
  padding: 12px 16px;
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius-sm);
  font-family: var(--ab-font-body);
  font-size: 0.95rem;
  color: var(--ab-slate);
  background-color: #ffffff;
}

.ab-calc-results {
  background-color: #ffffff;
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius);
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  text-align: center;
  margin-top: 20px;
}

.ab-calc-val {
  font-family: var(--ab-font-display);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--ab-emerald-dark);
  margin-bottom: 4px;
}

.ab-calc-sub {
  font-size: 0.85rem;
  color: var(--ab-muted);
  font-weight: 600;
}

/* 3-Column Features */
.ab-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 40px 0;
}

.ab-feature-card {
  background-color: var(--ab-card);
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius);
  padding: 32px 28px;
  box-shadow: var(--ab-shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.ab-feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--ab-emerald-border);
}

.ab-feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--ab-radius-sm);
  background-color: var(--ab-emerald-light);
  color: var(--ab-emerald-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 20px;
  font-family: var(--ab-font-display);
  font-weight: 700;
}

.ab-feature-card h3 {
  font-family: var(--ab-font-display);
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--ab-navy);
}

.ab-feature-card p {
  color: var(--ab-steel);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Standard Content Layout */
.ab-page-header {
  padding: 60px 0 40px;
  background: linear-gradient(180deg, #ecfdf5 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--ab-border);
}

.ab-page-title {
  font-family: var(--ab-font-display);
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--ab-navy);
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.ab-page-lead {
  font-size: 1.1rem;
  color: var(--ab-steel);
  max-width: 820px;
  line-height: 1.65;
}

.ab-content-area {
  padding: 50px 0 70px;
}

.ab-article {
  max-width: 840px;
  margin: 0 auto;
}

.ab-article h2 {
  font-family: var(--ab-font-display);
  font-size: 1.65rem;
  margin: 36px 0 16px;
  color: var(--ab-navy);
}

.ab-article h3 {
  font-family: var(--ab-font-display);
  font-size: 1.25rem;
  margin: 24px 0 12px;
  color: var(--ab-slate);
}

.ab-article p {
  margin-bottom: 18px;
  color: var(--ab-steel);
  line-height: 1.75;
}

.ab-article ul, .ab-article ol {
  margin: 16px 0 24px 28px;
  color: var(--ab-steel);
  line-height: 1.75;
}

.ab-article li {
  margin-bottom: 8px;
}

.ab-callout {
  background-color: var(--ab-emerald-light);
  border-left: 4px solid var(--ab-emerald);
  padding: 20px 24px;
  border-radius: 0 var(--ab-radius-sm) var(--ab-radius-sm) 0;
  margin: 28px 0;
}

.ab-callout p {
  color: #065f46;
  margin-bottom: 0;
  font-weight: 600;
}

/* Comparison Table */
.ab-table-wrap {
  overflow-x: auto;
  margin: 30px 0;
}

.ab-table {
  width: 100%;
  border-collapse: collapse;
  background-color: #ffffff;
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius-sm);
  overflow: hidden;
}

.ab-table th {
  background-color: #f1f5f9;
  color: var(--ab-navy);
  font-family: var(--ab-font-display);
  font-weight: 700;
  text-align: left;
  padding: 14px 18px;
  border-bottom: 1px solid var(--ab-border);
}

.ab-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--ab-border);
  color: var(--ab-steel);
  font-size: 0.95rem;
}

.ab-table tr:last-child td {
  border-bottom: none;
}

/* Expert Review Board Cards */
.ab-expert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 36px 0;
}

.ab-expert-card {
  background-color: #ffffff;
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--ab-shadow);
}

.ab-expert-img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto 16px;
  object-fit: cover;
  border: 3px solid var(--ab-emerald);
}

.ab-expert-name {
  font-family: var(--ab-font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ab-navy);
  margin-bottom: 4px;
}

.ab-expert-role {
  font-size: 0.85rem;
  color: var(--ab-emerald-dark);
  font-weight: 600;
  margin-bottom: 12px;
}

.ab-expert-bio {
  font-size: 0.88rem;
  color: var(--ab-muted);
  line-height: 1.5;
}

/* Legal Entity Box */
.ab-legal-box {
  background-color: #ffffff;
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius);
  padding: 28px;
  margin: 32px 0;
  box-shadow: var(--ab-shadow);
}

.ab-legal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.ab-legal-item {
  font-size: 0.92rem;
}

.ab-legal-label {
  font-weight: 600;
  color: var(--ab-navy);
  display: block;
  margin-bottom: 2px;
}

.ab-legal-val {
  color: var(--ab-steel);
}

/* Forms */
.ab-form-group {
  margin-bottom: 20px;
}

.ab-form-label {
  display: block;
  font-family: var(--ab-font-display);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ab-navy);
}

.ab-form-input, .ab-form-textarea, .ab-form-select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius-sm);
  font-family: var(--ab-font-body);
  font-size: 0.95rem;
  color: var(--ab-slate);
  background-color: #ffffff;
  transition: border-color 0.2s ease;
}

.ab-form-input:focus, .ab-form-textarea:focus, .ab-form-select:focus {
  outline: none;
  border-color: var(--ab-emerald);
}

.ab-form-textarea {
  min-height: 130px;
  resize: vertical;
}

/* Footer */
.ab-footer {
  background-color: var(--ab-navy);
  color: #cbd5e1;
  padding: 60px 0 30px;
  font-size: 0.92rem;
  border-top: 1px solid #1e293b;
}

.ab-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.ab-footer-brand p {
  color: var(--ab-light-muted);
  font-size: 0.9rem;
  margin-top: 14px;
  line-height: 1.6;
}

.ab-footer-heading {
  font-family: var(--ab-font-display);
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 18px;
}

.ab-footer-links {
  list-style: none;
}

.ab-footer-links li {
  margin-bottom: 10px;
}

.ab-footer-links a {
  color: #94a3b8;
}

.ab-footer-links a:hover {
  color: var(--ab-emerald);
}

.ab-footer-bottom {
  padding-top: 24px;
  border-top: 1px solid #1e293b;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: #64748b;
}

/* Cookie Banner */
.ab-cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 640px;
  margin: 0 auto;
  background-color: #ffffff;
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius);
  padding: 20px 24px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  z-index: 9999;
  display: none;
}

.ab-cookie-inner {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ab-cookie-text {
  font-size: 0.88rem;
  color: var(--ab-steel);
  line-height: 1.5;
}

.ab-cookie-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

@media (max-width: 900px) {
  .ab-hero-grid {
    grid-template-columns: 1fr;
  }
  .ab-features-grid, .ab-expert-grid, .ab-footer-grid, .ab-calc-grid, .ab-calc-results {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .ab-hero-title {
    font-size: 2.1rem;
  }
  .ab-legal-grid {
    grid-template-columns: 1fr;
  }
  .ab-nav {
    display: none;
  }
  .ab-menu-toggle {
    display: block;
  }
  .ab-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 74px;
    left: 0;
    width: 100%;
    background-color: #ffffff;
    padding: 20px;
    border-bottom: 1px solid var(--ab-border);
    box-shadow: var(--ab-shadow-lg);
  }
}