@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== HERO SECTION ===== */
.page-hero {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-title {
  font-size: 2.8rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.hero-meta {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gray);
}

.meta-icon {
  font-size: 1rem;
}

/* ===== ARTICLE INTRO ===== */
.article-intro {
  margin-bottom: var(--spacing-xxl);
}

.intro-lead {
  font-size: 1.2rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
  color: var(--text-light);
}

.key-points-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--membrane-medium);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  backdrop-filter: blur(10px);
}

.key-points-title {
  color: var(--primary);
  margin-bottom: var(--spacing-md);
  font-size: 1.4rem;
}

.key-points-list {
  list-style: none;
  padding-left: 0;
}

.key-point {
  padding: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-lg);
  position: relative;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.key-point:last-child {
  border-bottom: none;
}

.key-point::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary);
}

/* ===== ATHLETE PROFILES ===== */
.athlete-profiles {
  margin-bottom: var(--spacing-xxl);
}

.section-title {
  font-size: 2rem;
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  color: var(--text-muted);
  margin-bottom: var(--spacing-xl);
  font-size: 1.1rem;
}

.profiles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.profile-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(123, 45, 255, 0.2);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.profile-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
}

.profile-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.profile-header {
  margin-bottom: var(--spacing-md);
}

.profile-sport {
  display: inline-block;
  background: rgba(0, 200, 255, 0.1);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.profile-name {
  font-size: 1.4rem;
  color: var(--text-light);
  margin-bottom: 0;
}

.profile-body {
  color: var(--text-muted);
}

.profile-injury {
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.profile-treatment {
  line-height: 1.6;
  font-size: 0.95rem;
}

.more-profiles-note {
  background: rgba(123, 45, 255, 0.05);
  border-left: 4px solid var(--secondary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  font-style: italic;
  color: var(--text-muted);
}

/* ===== TREATMENTS SECTION ===== */
.treatments-explained {
  margin-bottom: var(--spacing-xxl);
}

.treatments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.treatment-card {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  transition: var(--transition);
  border: 1px solid rgba(61, 74, 223, 0.2);
}

.treatment-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.treatment-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.treatment-name {
  color: var(--primary);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
}

.treatment-desc {
  color: var(--text-muted);
  line-height: 1.7;
}

.treatment-use {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

/* ===== DISCLAIMER ===== */
.disclaimer-section {
  margin-bottom: var(--spacing-xxl);
}

.disclaimer-card {
  background: rgba(255, 170, 0, 0.05);
  border: 2px solid var(--warning);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  animation: pulseWarning 3s infinite;
}

@keyframes pulseWarning {
  0%, 100% { border-color: var(--warning); }
  50% { border-color: rgba(255, 170, 0, 0.5); }
}

.disclaimer-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.disclaimer-icon {
  font-size: 2rem;
}

.disclaimer-title {
  color: var(--warning);
  margin-bottom: 0;
  font-size: 1.5rem;
}

.disclaimer-content {
  color: var(--text-light);
}

.disclaimer-list {
  list-style: none;
  padding-left: 0;
  margin: var(--spacing-lg) 0;
}

.disclaimer-list li {
  padding: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-lg);
  position: relative;
  margin-bottom: var(--spacing-sm);
}

.disclaimer-list li::before {
  content: "⚠";
  position: absolute;
  left: 0;
  color: var(--warning);
}

.disclaimer-closing {
  font-weight: 600;
  color: var(--warning);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 170, 0, 0.3);
}

/* ===== EDUCATIONAL CONTEXT ===== */
.educational-context {
  margin-bottom: var(--spacing-xxl);
}

.context-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.context-point {
  background: rgba(255, 255, 255, 0.03);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border-left: 3px solid var(--primary);
}

.context-point-title {
  color: var(--primary);
  font-size: 1.2rem;
  margin-bottom: var(--spacing-sm);
}

.conclusion-card {
  background: rgba(123, 45, 255, 0.05);
  border: 1px solid var(--membrane-medium);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.conclusion-title {
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.conclusion-tagline {
  text-align: right;
  color: var(--text-muted);
  font-style: italic;
  margin-top: var(--spacing-lg);
}

/* ===== RELATED READING ===== */
.related-reading {
  margin-top: var(--spacing-xxl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.related-title {
  color: var(--text-light);
  margin-bottom: var(--spacing-lg);
  font-size: 1.3rem;
}

.related-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.related-link {
  color: var(--primary);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
  background: rgba(0, 200, 255, 0.05);
  border: 1px solid transparent;
}

.related-link:hover {
  background: rgba(0, 200, 255, 0.1);
  border-color: var(--primary);
  transform: translateX(5px);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .container {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .hero-meta {
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
    max-width: 300px;
    margin: 0 auto;
  }
  
  .profiles-grid {
    grid-template-columns: 1fr;
  }
  
  .treatments-grid {
    grid-template-columns: 1fr;
  }
  
  .context-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.8rem;
  }
  
  .section-title {
    font-size: 1.6rem;
  }
  
  .profile-card,
  .treatment-card,
  .context-point {
    padding: var(--spacing-md);
  }
}


.js-hidden {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.js-visible {
  opacity: 1;
  transform: translateY(0);
}

.js-filter-ui {
  margin-bottom: var(--spacing-xl);
}

.filter-search-container {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(123, 45, 255, 0.2);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
}

.search-wrapper {
  position: relative;
  margin-bottom: var(--spacing-md);
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
}

.search-input {
  width: 100%;
  padding: 14px 14px 14px 48px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--primary);
  border-radius: var(--border-radius);
  color: white;
  font-size: 1rem;
  transition: var(--transition);
}

.search-input:focus {
  outline: none;
  box-shadow: var(--shadow-glow);
  border-color: var(--primary-dark);
}

.clear-search-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--text-muted);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition);
}

.clear-search-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.filter-stats {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
}

.sport-filters {
  margin-top: var(--spacing-md);
}

.filter-label {
  display: block;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sport-filter-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--primary);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
}

.sport-filter-btn.active {
  background: var(--primary);
  color: var(--dark);
  font-weight: 600;
}

.sport-filter-btn:hover:not(.active) {
  background: rgba(0, 200, 255, 0.2);
  transform: translateY(-1px);
}

.sport-icon {
  font-size: 1rem;
}

.no-results-message {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  margin: var(--spacing-lg) 0;
  animation: fadeIn 0.5s ease-out;
}

@media (max-width: 768px) {
  .filter-buttons {
    justify-content: center;
  }
  
  .sport-filter-btn {
    flex: 1;
    min-width: 120px;
    justify-content: center;
  }
  
  .js-copy-disclaimer-btn {
    position: relative;
    top: 0;
    right: 0;
    margin-bottom: var(--spacing-md);
    width: 100%;
    justify-content: center;
  }
}