/* ================================================
   Exercise Detail Page — Enriched Reference Card
   ================================================
   Uses --group-color custom property set per-page
   inline on <body> (resolves to --chest, --back, etc.)
   ================================================ */

/* --- Hero: compact, no giant glow orb --- */
.ex-hero {
  padding: var(--space-4xl) 0 var(--space-xl);
}
.ex-hero__breadcrumb {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg) 0;
}
.ex-hero__breadcrumb li {
  font: 400 13px/1.4 var(--font-body);
  color: var(--text-tertiary);
}
.ex-hero__breadcrumb a {
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color 0.2s;
}
.ex-hero__breadcrumb a:hover {
  color: var(--flame);
}
.ex-hero__title {
  font: 800 clamp(26px, 5vw, 42px)/1.15 var(--font-display);
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}
.ex-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.ex-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 6px;
  font: 600 12px/1 var(--font-body);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}
.ex-badge--group {
  background: color-mix(in srgb, var(--group-color) 15%, transparent);
  color: var(--group-color);
}
.ex-badge--type {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
}
.ex-badge--equipment {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
}

/* --- Main content card: description + how-to + form cues + mistakes consolidated --- */
.ex-content {
  padding: var(--space-lg) 0 var(--space-xl);
}
.ex-main-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--group-color);
  overflow: hidden;
}
.ex-main-card__description {
  padding: var(--space-xxl) var(--space-xxl) var(--space-lg);
  color: var(--text-secondary);
  font: 400 15px/1.7 var(--font-body);
}
.ex-main-card__divider {
  height: 1px;
  background: var(--glass-border);
  margin: 0 var(--space-xxl);
}

/* Form cues + mistakes: two-column grid */
.ex-tips-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.ex-tips-column {
  padding: var(--space-xl) var(--space-xxl);
}
.ex-tips-column:first-child {
  border-right: 1px solid var(--glass-border);
}
.ex-tips-column__heading {
  font: 700 13px/1 var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.ex-tips-column__heading--cues {
  color: var(--success);
}
.ex-tips-column__heading--mistakes {
  color: #FFB74D;
}
.ex-tip-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.ex-tip-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font: 400 14px/1.6 var(--font-body);
  color: var(--text-secondary);
}
.ex-tip-list li svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Sets and Reps grid --- */
.ex-sets-reps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

/* --- YouTube card --- */
.ex-video-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
  margin-top: var(--space-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.ex-video-card:hover {
  background: rgba(255, 0, 0, 0.06);
  border-color: rgba(255, 68, 68, 0.2);
  transform: translateY(-2px);
}
.ex-video-card__play {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 0, 0, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
}
.ex-video-card__text {
  flex: 1;
}
.ex-video-card__title {
  font: 600 15px/1.3 var(--font-body);
  color: var(--text-primary);
}
.ex-video-card__sub {
  font: 400 13px/1.4 var(--font-body);
  color: var(--text-tertiary);
  margin-top: 2px;
}
.ex-video-card__arrow {
  flex-shrink: 0;
  color: var(--text-tertiary);
  transition: transform 0.2s, color 0.2s;
}
.ex-video-card:hover .ex-video-card__arrow {
  transform: translateX(4px);
  color: #FF4444;
}

/* --- CTA: inline compact banner --- */
.ex-cta {
  margin-top: var(--space-xl);
  padding: var(--space-xl) var(--space-xxl);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  flex-wrap: wrap;
}
.ex-cta__text {
  flex: 1;
  min-width: 200px;
}
.ex-cta__title {
  font: 700 16px/1.3 var(--font-display);
  color: var(--text-primary);
  margin-bottom: 4px;
}
.ex-cta__sub {
  font: 400 13px/1.5 var(--font-body);
  color: var(--text-tertiary);
}
.ex-cta .btn-primary {
  white-space: nowrap;
  padding: 12px 24px;
  font-size: 14px;
}

/* --- Related exercises --- */
.ex-related {
  padding: var(--space-3xl) 0 var(--space-5xl);
}
.ex-related__heading {
  font: 700 18px/1.3 var(--font-display);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}
.ex-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-md);
}
.ex-related-card {
  display: block;
  padding: var(--space-lg) var(--space-xl);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--group-color);
  text-decoration: none;
  transition: transform 0.25s cubic-bezier(.22,1,.36,1), background 0.2s, box-shadow 0.25s;
}
.ex-related-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.ex-related-card__name {
  font: 600 15px/1.4 var(--font-body);
  color: var(--text-primary);
  margin-bottom: 4px;
}
.ex-related-card__type {
  font: 400 12px/1 var(--font-body);
  color: var(--text-tertiary);
}

/* --- Group heading: visually stronger H2 that wraps multiple H3 subsections --- */
.ex-group-heading {
  font: 800 clamp(20px, 3vw, 26px)/1.2 var(--font-display);
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin: var(--space-xl) 0 var(--space-md) 0;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--glass-border);
}
.ex-group-heading + .ex-group-heading__lead {
  color: var(--text-secondary);
  font: 400 15px/1.7 var(--font-body);
  margin-bottom: var(--space-md);
}

/* --- Long-form sections (quick stats, anatomy, programming, safety) --- */
.ex-section {
  margin-top: var(--space-xl);
  padding: var(--space-xl) var(--space-xxl);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}
.ex-section__heading {
  font: 700 18px/1.3 var(--font-display);
  color: var(--text-primary);
  margin: 0 0 var(--space-md) 0;
}
.ex-section__subheading {
  font: 600 14px/1.3 var(--font-display);
  color: var(--text-primary);
  margin: var(--space-md) 0 var(--space-sm) 0;
}
.ex-section__text {
  color: var(--text-secondary);
  font: 400 15px/1.7 var(--font-body);
  margin: 0 0 var(--space-sm) 0;
}
.ex-section__text a {
  color: var(--flame);
  text-decoration: underline;
  text-decoration-color: rgba(255, 109, 0, 0.4);
  text-underline-offset: 2px;
}
.ex-section__text a:hover {
  text-decoration-color: var(--flame);
}

.ex-quick-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--group-color);
}
.ex-stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ex-stat-label {
  font: 600 11px/1 var(--font-body);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.ex-stat-value {
  font: 700 14px/1.3 var(--font-display);
  color: var(--text-primary);
}

.ex-anatomy-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.ex-anatomy-item {
  padding: var(--space-sm) var(--space-md);
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  border-left: 3px solid rgba(255,255,255,0.08);
}
.ex-anatomy-item--primary {
  border-left-color: #66BB6A;
  background: rgba(102, 187, 106, 0.06);
}
.ex-anatomy-item__name {
  font: 600 14px/1.3 var(--font-display);
  color: var(--text-primary);
  margin-bottom: 2px;
}
.ex-anatomy-item__desc {
  font: 400 14px/1.6 var(--font-body);
  color: var(--text-secondary);
}

.ex-decision-list,
.ex-placement-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.ex-decision-item {
  padding: var(--space-md) var(--space-lg);
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--flame);
}
.ex-decision-item__cond {
  font: 700 13px/1.3 var(--font-display);
  color: var(--flame);
  margin-bottom: 4px;
}
.ex-decision-item__text {
  font: 400 14px/1.6 var(--font-body);
  color: var(--text-secondary);
}
.ex-placement-item {
  font: 400 14px/1.7 var(--font-body);
  color: var(--text-secondary);
  padding-left: var(--space-md);
  border-left: 2px solid var(--glass-border);
}
.ex-placement-item strong {
  color: var(--text-primary);
  font-weight: 700;
}

/* --- Mobile: stack the tips columns + sets grid --- */
@media (max-width: 680px) {
  .ex-tips-grid {
    grid-template-columns: 1fr;
  }
  .ex-tips-column:first-child {
    border-right: none;
    border-bottom: 1px solid var(--glass-border);
  }
  .ex-sets-reps-grid {
    grid-template-columns: 1fr;
  }
  .ex-cta {
    flex-direction: column;
    text-align: center;
    align-items: stretch;
  }
  .ex-cta .btn-primary {
    justify-content: center;
  }
  .ex-hero {
    padding-top: var(--space-3xl);
  }
  .ex-section {
    padding: var(--space-lg) var(--space-xl);
  }
  .ex-quick-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}
