/* Modern Journal Page Styles */

:root {
  --primary-color: #d4145a;
  --secondary-color: #932091;
  --accent-color: #4facfe;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  --info-color: #17a2b8;
  
  --text-dark: #2c3e50;
  --text-light: #6c757d;
  --text-muted: #adb5bd;
  
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;
  --bg-gray: #f0f2f5;
  
  --border-color: rgba(0, 0, 0, 0.125);
  --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
  
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--bg-light);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes ai-particle-float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(10px, -15px) rotate(90deg); }
  50% { transform: translate(-5px, -25px) rotate(180deg); }
  75% { transform: translate(-15px, -10px) rotate(270deg); }
}

@keyframes ai-glow {
  0%, 100% { box-shadow: 0 4px 15px rgba(79, 172, 254, 0.2); }
  50% { box-shadow: 0 8px 25px rgba(79, 172, 254, 0.4); }
}

/* Header Styles */
.navbar {
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.navbar-nav {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 1rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--primary-color);
}

/* Journal Header */
.journal-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
  padding: 4rem 0;
  position: relative;
  overflow: hidden;
}

.journal-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  animation: ai-particle-float 20s ease-in-out infinite;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.journal-title h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  animation: slideInDown 1s ease;
}

.journal-subtitle {
  font-size: 1.2rem;
  opacity: 0.9;
  animation: fadeInUp 1s ease 0.2s both;
}

.journal-actions {
  display: flex;
  gap: 1rem;
  flex-shrink: 0;
  animation: fadeInUp 1s ease 0.4s both;
}

/* Floating Circles */
.floating-circle {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 182, 193, 0.3), rgba(147, 112, 219, 0.4));
  box-shadow: 0 4px 15px rgba(79, 172, 254, 0.2);
  animation: ai-particle-float 8s ease-in-out infinite, ai-glow 4s ease-in-out infinite;
  pointer-events: none;
}

.floating-circle:nth-child(1) { width: 80px; height: 80px; top: 10%; left: 5%; animation-delay: 0s; }
.floating-circle:nth-child(2) { width: 60px; height: 60px; top: 20%; right: 10%; animation-delay: 1s; }
.floating-circle:nth-child(3) { width: 100px; height: 100px; top: 70%; left: 15%; animation-delay: 2s; }
.floating-circle:nth-child(4) { width: 40px; height: 40px; top: 60%; right: 20%; animation-delay: 3s; }

/* Button Styles */
.btn {
  padding: 0.8rem 2rem;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  font-size: 0.95rem;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.8);
}

.btn-outline:hover {
  background: white;
  color: var(--primary-color);
  border-color: white;
}

/* Metrics Section */
.metrics-section {
  background: var(--bg-white);
  padding: 3rem 0;
  border-bottom: 1px solid var(--border-color);
}

.metrics-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  animation: fadeInUp 1s ease;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-light);
  opacity: 0.9;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.metric-card {
  background: linear-gradient(135deg, var(--bg-white), var(--bg-gray));
  border-radius: var(--border-radius-xl);
  padding: 2rem;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.metric-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.metric-card:hover::before {
  transform: scaleX(1);
}

.metric-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.5rem;
}

.metric-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 0.25rem;
}

.metric-subtitle {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

/* Articles Section */
.articles-section {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
  animation: fadeInUp 1s ease 0.8s both;
}

.articles-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.nav-tab {
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-dark);
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  border: 1px solid var(--border-color);
}

.nav-tab:hover {
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.nav-tab.active {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border-color: var(--primary-color);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--bg-white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  backdrop-filter: blur(20px);
  position: relative;
  border: 1px solid var(--border-color);
}

.article-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.article-card:hover::before {
  transform: scaleX(1);
}

.article-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.article-header {
  padding: 2rem 2rem 1rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--text-light);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

.article-status {
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--success-color), #20c997);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
}

.article-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1rem;
  line-height: 1.4;
}

.article-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.article-title a:hover {
  color: var(--primary-color);
}

.article-authors {
  color: var(--text-light);
  font-weight: 500;
  margin-bottom: 1rem;
}

.article-abstract {
  color: var(--text-dark);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-footer {
  padding: 1rem 2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.article-actions {
  display: flex;
  gap: 1rem;
}

.action-btn {
  padding: 0.5rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: 25px;
  background: var(--bg-white);
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.action-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.article-date {
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-light);
}

.empty-state i {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
  }
  
  .journal-title h1 {
    font-size: 2rem;
  }
  
  .journal-actions {
    justify-content: center;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  .articles-nav {
    flex-wrap: wrap;
  }
  
  .article-footer {
    flex-direction: column;
    align-items: stretch;
  }
  
  .article-actions {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .journal-title h1 {
    font-size: 1.75rem;
  }
  
  .journal-subtitle {
    font-size: 1rem;
  }
  
  .btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .articles-section {
    padding: 0 1rem;
  }
  
  .article-header {
    padding: 1.5rem 1.5rem 1rem;
  }
  
  .article-footer {
    padding: 1rem 1.5rem 1.5rem;
  }
}

/* Print Styles */
@media print {
  .floating-circle,
  .journal-actions,
  .articles-nav,
  .article-actions {
    display: none;
  }
  
  .article-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--border-color);
  }
}