/* Custom Styles for Project Maxwell - Academic Enhancement */

/* Academic Typography */
@import url('https://fonts.googleapis.com/css2?family=Crimson+Text:ital,wght@0,400;0,600;1,400&family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Academic Color Palette */
  --academic-navy: #1e3a8a;
  --academic-blue: #2563eb;
  --academic-light-blue: #3b82f6;
  --academic-gold: #f59e0b;
  --academic-deep-red: #dc2626;
  --academic-forest: #059669;
  --academic-slate: #475569;
  --academic-cream: #fefce8;
  --academic-paper: #fefbf3;

  /* Academic Spacing */
  --academic-section-spacing: 5rem;
  --academic-content-spacing: 2.5rem;

  /* Academic Shadows */
  --academic-card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --academic-card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --academic-card-shadow-dark: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
}

/* Academic Typography Classes */
.academic-heading {
  font-family: 'Crimson Text', Georgia, serif;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.academic-body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  letter-spacing: -0.01em;
}

.academic-caption {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

/* Academic Background Patterns */
.bg-grid-pattern {
  background-image:
    linear-gradient(rgba(30, 58, 138, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 138, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
}

.dark .bg-grid-pattern {
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
}

/* Mathematical Pattern Background */
.bg-math-pattern {
  background-image: radial-gradient(circle at 20px 20px, rgba(30, 58, 138, 0.03) 1px, transparent 0);
  background-size: 40px 40px;
}

.dark .bg-math-pattern {
  background-image: radial-gradient(circle at 20px 20px, rgba(59, 130, 246, 0.04) 1px, transparent 0);
}

/* Academic Gradient Backgrounds */
.bg-academic-gradient {
  background: linear-gradient(135deg, var(--academic-cream) 0%, #ffffff 100%);
}

.dark .bg-academic-gradient {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.bg-academic-hero {
  background: linear-gradient(135deg, var(--academic-paper) 0%, #f8fafc 50%, var(--academic-cream) 100%);
}

.dark .bg-academic-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
}

/* Academic Button Styles */
.btn-primary {
  @apply inline-flex items-center justify-center px-8 py-4 border border-transparent text-base font-semibold text-white transition-all duration-300 whitespace-nowrap;
  border-radius: 1rem;
  background: linear-gradient(135deg, var(--academic-light-blue), #60a5fa);
  box-shadow:
    0 6px 20px rgba(59, 130, 246, 0.15),
    0 2px 8px rgba(59, 130, 246, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  letter-spacing: 0.025em;
  position: relative;
  overflow: hidden;
  min-width: fit-content;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #3b82f6, #60a5fa);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow:
    0 12px 30px rgba(59, 130, 246, 0.2),
    0 4px 12px rgba(59, 130, 246, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-secondary {
  @apply inline-flex items-center justify-center px-8 py-4 border-2 text-base font-semibold transition-all duration-300 whitespace-nowrap;
  border-radius: 1rem;
  border-color: var(--academic-light-blue);
  color: var(--academic-light-blue);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  letter-spacing: 0.025em;
  box-shadow:
    0 6px 20px rgba(59, 130, 246, 0.08),
    0 2px 8px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  position: relative;
  overflow: hidden;
  min-width: fit-content;
}

.btn-secondary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--academic-light-blue), #60a5fa);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.btn-secondary:hover::before {
  opacity: 1;
}

.btn-secondary:hover {
  transform: translateY(-2px) scale(1.01);
  color: white;
  border-color: #60a5fa;
  box-shadow:
    0 12px 30px rgba(59, 130, 246, 0.15),
    0 4px 12px rgba(59, 130, 246, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.dark .btn-secondary {
  border-color: var(--academic-light-blue);
  color: var(--academic-light-blue);
  background: rgba(15, 23, 42, 0.95);
  box-shadow:
    0 8px 25px rgba(0, 0, 0, 0.15),
    0 3px 10px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.dark .btn-secondary::before {
  background: linear-gradient(135deg, var(--academic-light-blue), var(--academic-blue));
}

.dark .btn-secondary:hover {
  color: var(--academic-navy);
  border-color: var(--academic-light-blue);
  box-shadow:
    0 15px 35px rgba(0, 0, 0, 0.25),
    0 5px 15px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-outline {
  @apply inline-flex items-center px-6 py-3 border border-slate-300 dark:border-slate-600 text-base font-medium transition-all duration-300;
  border-radius: 1.25rem;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.btn-outline:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
}

/* Academic Navigation Links */
.nav-link {
  @apply px-4 py-3 text-sm font-semibold transition-all duration-300;
  border-radius: 1rem;
  color: var(--academic-slate);
  letter-spacing: 0.025em;
  position: relative;
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--academic-navy), var(--academic-blue));
  transition: width 0.3s ease;
}

.nav-link:hover::before {
  width: 80%;
}

.nav-link:hover {
  color: var(--academic-navy);
  background: rgba(59, 130, 246, 0.05);
}

.nav-link.active {
  color: var(--academic-navy);
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.1), rgba(59, 130, 246, 0.05));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.nav-link.active::before {
  width: 100%;
}

.dark .nav-link {
  color: rgb(148, 163, 184);
}

.dark .nav-link:hover {
  color: var(--academic-light-blue);
  background: rgba(59, 130, 246, 0.1);
}

.dark .nav-link.active {
  color: var(--academic-light-blue);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(30, 58, 138, 0.1));
}

.mobile-nav-link {
  @apply block px-3 py-2 rounded-md text-base font-medium text-slate-700 dark:text-slate-300 hover:text-primary-600 dark:hover:text-primary-400 hover:bg-slate-50 dark:hover:bg-slate-800 transition-colors duration-200;
}

/* Academic Paper Card Styles */
.paper-card {
  @apply bg-white dark:bg-slate-800 transition-all duration-500;
  border-radius: 1.25rem;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(30, 58, 138, 0.08);
  box-shadow:
    0 8px 25px rgba(30, 58, 138, 0.08),
    0 3px 10px rgba(0, 0, 0, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  position: relative;
  overflow: hidden;
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
}

.paper-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--academic-navy), var(--academic-blue), var(--academic-light-blue));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.paper-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.paper-card:hover::before {
  opacity: 1;
}

.paper-card:hover::after {
  opacity: 1;
}

.paper-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow:
    0 20px 40px rgba(30, 58, 138, 0.15),
    0 8px 25px rgba(59, 130, 246, 0.1),
    0 0 0 1px rgba(59, 130, 246, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 1);
  background: rgba(255, 255, 255, 1);
  border-color: rgba(59, 130, 246, 0.25);
}

.dark .paper-card {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.9));
  border-color: rgba(59, 130, 246, 0.15);
  box-shadow:
    0 8px 25px rgba(0, 0, 0, 0.25),
    0 3px 10px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.dark .paper-card:hover {
  background: linear-gradient(145deg, rgba(30, 41, 59, 1), rgba(15, 23, 42, 0.95));
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.4),
    0 8px 25px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(59, 130, 246, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Academic Person Card Styles */
.person-card {
  @apply bg-white dark:bg-slate-800 text-center transition-all duration-500;
  border-radius: 1.75rem;
  padding: 2.5rem 2rem;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(30, 58, 138, 0.08);
  box-shadow:
    0 10px 30px rgba(30, 58, 138, 0.08),
    0 4px 15px rgba(0, 0, 0, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  position: relative;
  overflow: hidden;
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
}

.person-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--academic-gold), var(--academic-forest), var(--academic-blue));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.person-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--academic-gold), var(--academic-forest));
  transition: width 0.4s ease;
  border-radius: 2px 2px 0 0;
}

.person-card:hover::before {
  opacity: 1;
}

.person-card:hover::after {
  width: 90%;
}

.person-card:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow:
    0 20px 40px rgba(30, 58, 138, 0.12),
    0 8px 25px rgba(245, 158, 11, 0.08),
    0 0 0 1px rgba(59, 130, 246, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 1);
  border-color: rgba(245, 158, 11, 0.2);
  background: rgba(255, 255, 255, 1);
}

.dark .person-card {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.9));
  border-color: rgba(245, 158, 11, 0.15);
  box-shadow:
    0 10px 30px rgba(0, 0, 0, 0.25),
    0 4px 15px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.dark .person-card:hover {
  background: linear-gradient(145deg, rgba(30, 41, 59, 1), rgba(15, 23, 42, 0.95));
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.4),
    0 8px 25px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(245, 158, 11, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Person Name Card Styles */
.person-name-card {
  @apply inline-flex items-center cursor-pointer m-2 transition-all duration-300;
  border-radius: 1.5rem;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(30, 58, 138, 0.1);
  box-shadow:
    0 6px 20px rgba(30, 58, 138, 0.06),
    0 2px 8px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
}

.person-name-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--academic-gold), var(--academic-forest), var(--academic-blue));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.person-name-card:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow:
    0 12px 30px rgba(30, 58, 138, 0.12),
    0 6px 20px rgba(245, 158, 11, 0.06),
    0 0 0 1px rgba(59, 130, 246, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 1);
  background: rgba(255, 255, 255, 1);
  border-color: rgba(245, 158, 11, 0.2);
}

.dark .person-name-card {
  background: rgba(30, 41, 59, 0.95);
  border-color: rgba(245, 158, 11, 0.15);
  box-shadow:
    0 6px 20px rgba(0, 0, 0, 0.2),
    0 2px 8px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.dark .person-name-card:hover {
  background: rgba(30, 41, 59, 1);
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow:
    0 12px 30px rgba(0, 0, 0, 0.3),
    0 6px 20px rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(245, 158, 11, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Avatar Styles */
.avatar {
  @apply w-24 h-24 rounded-full mx-auto mb-6 flex items-center justify-center font-semibold text-lg transition-all duration-300;
  background: linear-gradient(135deg, var(--academic-blue), var(--academic-light-blue));
  color: white;
  border: 3px solid rgba(255, 255, 255, 0.9);
  box-shadow:
    0 8px 25px rgba(59, 130, 246, 0.15),
    0 3px 10px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.avatar::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--academic-gold), var(--academic-forest), var(--academic-blue));
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.avatar:hover::before {
  opacity: 1;
}

.avatar:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow:
    0 12px 35px rgba(59, 130, 246, 0.25),
    0 6px 15px rgba(245, 158, 11, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 1);
}

.avatar-large {
  @apply w-32 h-32 text-xl mb-8;
  border-width: 4px;
}

.avatar-small {
  @apply w-16 h-16 text-sm mb-4;
  border-width: 2px;
}

.dark .avatar {
  border-color: rgba(30, 41, 59, 0.8);
  box-shadow:
    0 8px 25px rgba(0, 0, 0, 0.2),
    0 3px 10px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.dark .avatar:hover {
  border-color: rgba(30, 41, 59, 1);
  box-shadow:
    0 12px 35px rgba(0, 0, 0, 0.3),
    0 6px 15px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* Academic Status Badge Styles */
.status-badge {
  @apply inline-flex items-center px-3 py-1.5 text-xs font-bold transition-all duration-300;
  border-radius: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.status-released {
  background: linear-gradient(135deg, var(--academic-forest), #10b981);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.status-preprint {
  background: linear-gradient(135deg, var(--academic-gold), #fbbf24);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.status-in_submission {
  background: linear-gradient(135deg, var(--academic-blue), var(--academic-light-blue));
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.status-badge:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Academic Venue Badge */
.venue-badge {
  @apply inline-flex items-center px-3 py-1 text-xs font-semibold;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, var(--academic-navy), var(--academic-slate));
  color: white;
  letter-spacing: 0.025em;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 2px 6px rgba(30, 58, 138, 0.2);
}

/* Academic Keyword Tag Styles */
.keyword-tag {
  @apply inline-flex items-center px-3 py-1 text-xs font-semibold transition-all duration-200;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.1), rgba(59, 130, 246, 0.05));
  color: var(--academic-navy);
  border: 1px solid rgba(30, 58, 138, 0.15);
  letter-spacing: 0.025em;
}

.keyword-tag:hover {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.2), rgba(59, 130, 246, 0.1));
  transform: translateY(-1px);
  border-color: rgba(30, 58, 138, 0.3);
}

.dark .keyword-tag {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(30, 58, 138, 0.1));
  color: var(--academic-light-blue);
  border-color: rgba(59, 130, 246, 0.3);
}

.dark .keyword-tag:hover {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.25), rgba(30, 58, 138, 0.15));
  border-color: rgba(59, 130, 246, 0.4);
}

/* Academic Research Area Tags */
.research-tag {
  @apply inline-flex items-center px-4 py-2 text-sm font-semibold transition-all duration-300;
  border-radius: 1.5rem;
  background: linear-gradient(135deg, var(--academic-cream), #fff7ed);
  color: var(--academic-deep-red);
  border: 1px solid rgba(220, 38, 38, 0.15);
  letter-spacing: 0.025em;
  box-shadow: 0 2px 6px rgba(220, 38, 38, 0.1);
}

.research-tag:hover {
  transform: translateY(-2px);
  box-shadow: var(--academic-card-shadow);
  background: linear-gradient(135deg, #fff7ed, var(--academic-cream));
  border-color: rgba(220, 38, 38, 0.3);
}

.dark .research-tag {
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.1), rgba(239, 68, 68, 0.05));
  color: #fca5a5;
  border-color: rgba(220, 38, 38, 0.3);
}

/* Link Button Styles */
.link-btn {
  @apply inline-flex items-center px-3 py-1.5 text-sm font-medium rounded-lg transition-colors duration-200;
}

.link-btn-primary {
  @apply bg-primary-600 text-white hover:bg-primary-700;
}

.link-btn-secondary {
  @apply bg-slate-100 dark:bg-slate-700 text-slate-700 dark:text-slate-300 hover:bg-slate-200 dark:hover:bg-slate-600;
}

/* Social Link Styles */
.social-link {
  @apply inline-flex items-center justify-center w-8 h-8 rounded-lg text-slate-600 dark:text-slate-400 hover:text-primary-600 dark:hover:text-primary-400 hover:bg-slate-100 dark:hover:bg-slate-700 transition-colors duration-200;
}

/* Animation Classes */
.animate-fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

.animate-slide-up {
  animation: slideUp 0.5s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

/* Responsive Typography */
@media (max-width: 640px) {
  .text-responsive-xl {
    @apply text-2xl;
  }

  .text-responsive-2xl {
    @apply text-3xl;
  }

  .text-responsive-3xl {
    @apply text-4xl;
  }
}

/* Focus States for Accessibility */
*:focus {
  @apply outline-none;
}

*:focus-visible {
  @apply ring-2 ring-primary-500 ring-offset-2 dark:ring-offset-slate-900;
}

/* Print Styles */
@media print {
  .no-print {
    display: none !important;
  }

  .paper-card,
  .person-card {
    @apply shadow-none border border-slate-300;
  }

  .bg-gradient-to-r,
  .bg-gradient-to-br {
    background: white !important;
    color: black !important;
  }
}

/* Loading States */
.loading {
  @apply animate-pulse;
}

.loading-card {
  @apply bg-slate-200 dark:bg-slate-700 rounded-2xl h-48;
}

.loading-text {
  @apply bg-slate-200 dark:bg-slate-700 rounded h-4;
}

.loading-text-sm {
  @apply bg-slate-200 dark:bg-slate-700 rounded h-3;
}

/* Smooth Transitions */
* {
  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, transform, box-shadow;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
}

/* Academic Navigation Enhancements */
.dark nav {
  background: rgba(15, 23, 42, 0.9) !important;
  border-color: rgba(59, 130, 246, 0.2) !important;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  @apply bg-slate-100 dark:bg-slate-800;
}

::-webkit-scrollbar-thumb {
  @apply bg-slate-300 dark:bg-slate-600 rounded-full;
}

::-webkit-scrollbar-thumb:hover {
  @apply bg-slate-400 dark:bg-slate-500;
}

/* Selection Colors */
::selection {
  @apply bg-primary-200 dark:bg-primary-800 text-slate-900 dark:text-slate-100;
}

/* Academic Metrics and Indicators */
.academic-metric {
  @apply text-center p-6 transition-all duration-300;
  border-radius: 1.25rem;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.1),
    0 2px 6px rgba(0, 0, 0, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  margin-bottom: 1rem;
}

.academic-metric:hover {
  transform: translateY(-2px);
  box-shadow:
    0 8px 20px rgba(0, 0, 0, 0.15),
    0 4px 10px rgba(0, 0, 0, 0.1),
    0 0 0 1px rgba(59, 130, 246, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 1);
  border-color: rgba(59, 130, 246, 0.3);
}

.dark .academic-metric {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
  border-color: rgba(59, 130, 246, 0.2);
}

.metric-number {
  @apply text-3xl font-bold;
  color: var(--academic-navy);
  font-family: 'Inter', sans-serif;
}

.dark .metric-number {
  color: var(--academic-light-blue);
}

.metric-label {
  @apply text-sm font-semibold mt-2;
  color: var(--academic-slate);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.dark .metric-label {
  color: rgb(148, 163, 184);
}

/* Academic Section Dividers */
.academic-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--academic-navy), transparent);
  margin: var(--academic-section-spacing) 0;
  position: relative;
}

.academic-divider::before {
  content: '§';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: white;
  color: var(--academic-navy);
  padding: 0 1rem;
  font-size: 1.25rem;
  font-weight: bold;
}

.dark .academic-divider {
  background: linear-gradient(90deg, transparent, var(--academic-light-blue), transparent);
}

.dark .academic-divider::before {
  background: #0f172a;
  color: var(--academic-light-blue);
}

/* Institution Affiliation Styles */
.institution-badge {
  @apply inline-flex items-center px-4 py-2 text-sm font-semibold transition-all duration-300;
  border-radius: 1.25rem;
  background: linear-gradient(135deg, var(--academic-gold), #fbbf24);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  letter-spacing: 0.025em;
  box-shadow: 0 2px 6px rgba(245, 158, 11, 0.3);
}

.institution-badge:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Mathematical Symbol Decorations */
.math-decoration {
  position: relative;
  display: inline-block;
}

.math-decoration::before {
  content: attr(data-symbol);
  position: absolute;
  top: -0.5rem;
  right: -0.5rem;
  font-size: 0.75rem;
  color: var(--academic-blue);
  opacity: 0.3;
  font-family: 'Times New Roman', serif;
}

/* Academic Excellence Indicators */
.excellence-badge {
  @apply inline-flex items-center px-3 py-1 text-xs font-bold transition-all duration-300;
  border-radius: 1rem;
  background: linear-gradient(135deg, #dc2626, #ef4444);
  color: white;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 2px 6px rgba(220, 38, 38, 0.25);
}

.excellence-badge:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(220, 38, 38, 0.4);
}

/* Academic Conference Quality Indicators */
.conference-tier {
  @apply inline-flex items-center px-2 py-1 rounded text-xs font-bold;
}

.tier-a {
  background: linear-gradient(135deg, #059669, #10b981);
  color: white;
}

.tier-b {
  background: linear-gradient(135deg, #0ea5e9, #3b82f6);
  color: white;
}

/* Mathematical Formula Decoration */
.formula-decoration {
  position: relative;
  overflow: hidden;
}

.formula-decoration::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text y="50" font-size="20" fill="%23e2e8f0" opacity="0.3">∫∑∂λφπθα</text></svg>') repeat;
  animation: float 20s infinite linear;
  pointer-events: none;
}

@keyframes float {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Academic Impact Metrics */
.impact-metric {
  @apply text-center p-4 transition-all duration-300;
  border-radius: 1.25rem;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.8), rgba(248, 250, 252, 0.6));
  border: 1px solid rgba(59, 130, 246, 0.08);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.impact-metric:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.12), 0 2px 6px rgba(59, 130, 246, 0.08);
}

.impact-number {
  @apply text-2xl font-bold mb-1;
  background: linear-gradient(135deg, var(--academic-navy), var(--academic-blue));
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

/* Research Quality Indicators */
.research-quality {
  position: relative;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(34, 197, 94, 0.05));
  border: 1px solid rgba(16, 185, 129, 0.15);
  border-radius: 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #059669;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 2px 6px rgba(16, 185, 129, 0.1);
}

.research-quality::before {
  content: '★';
  margin-right: 0.5rem;
  color: #fbbf24;
}

/* Academic Timeline Elements */
.timeline-item {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 2rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 0.75rem;
  height: 0.75rem;
  background: linear-gradient(135deg, var(--academic-blue), var(--academic-light-blue));
  border-radius: 50%;
  border: 3px solid white;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: 0.375rem;
  top: 1.25rem;
  width: 2px;
  height: calc(100% + 1rem);
  background: linear-gradient(180deg, var(--academic-blue), transparent);
}

.timeline-item:last-child::after {
  display: none;
}

/* Sophisticated Hover Effects */
.hover-glow:hover {
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.4), 0 0 40px rgba(59, 130, 246, 0.2);
}

.hover-lift {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
}

/* Academic Seal/Logo Enhancement */
.academic-seal {
  position: relative;
  display: inline-block;
  padding: 1rem;
  background: radial-gradient(circle, rgba(30, 58, 138, 0.05), rgba(59, 130, 246, 0.02));
  border: 2px solid rgba(30, 58, 138, 0.1);
  border-radius: 50%;
}

.academic-seal::before {
  content: '';
  position: absolute;
  inset: -4px;
  border: 1px solid rgba(30, 58, 138, 0.2);
  border-radius: 50%;
}

/* Reduce Motion for Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .formula-decoration::before {
    animation: none;
  }
}

/* Academic Button Group Styles */
.btn-group {
  position: relative;
  padding: 1.5rem;
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-group::before {
  content: '';
  position: absolute;
  inset: -1px;
  background: linear-gradient(135deg,
    rgba(30, 58, 138, 0.1),
    rgba(59, 130, 246, 0.05),
    rgba(245, 158, 11, 0.1));
  border-radius: 1.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.btn-group:hover::before {
  opacity: 1;
}

.dark .btn-group {
  background: rgba(15, 23, 42, 0.1);
  border-color: rgba(255, 255, 255, 0.05);
}

/* Academic Section Navigation Button */
.btn-section {
  @apply inline-flex items-center justify-center transition-all duration-300 whitespace-nowrap;
  padding: 1rem 2rem;
  border-radius: 2rem;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(59, 130, 246, 0.15);
  backdrop-filter: blur(12px);
  position: relative;
  color: var(--academic-navy);
  font-weight: 500;
  letter-spacing: 0.02em;
  min-width: fit-content;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.08);
}

.btn-section::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 2rem;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(30, 58, 138, 0.08));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-section:hover::before {
  opacity: 1;
}

.btn-section:hover {
  transform: translateY(-2px);
  box-shadow:
    0 8px 25px rgba(59, 130, 246, 0.15),
    0 3px 10px rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.25);
  color: var(--academic-blue);
}

.dark .btn-section {
  background: rgba(30, 41, 59, 0.8);
  border-color: rgba(59, 130, 246, 0.2);
  color: var(--academic-light-blue);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.dark .btn-section:hover {
  background: rgba(30, 41, 59, 0.95);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow:
    0 8px 25px rgba(0, 0, 0, 0.2),
    0 3px 10px rgba(59, 130, 246, 0.1);
  color: #60a5fa;
}

/* Enhanced Academic Button Animations */
.btn-primary,
.btn-secondary {
  position: relative;
  z-index: 1;
}

.btn-primary svg,
.btn-secondary svg,
.btn-section svg {
  transition: transform 0.3s ease;
}

.btn-primary:hover svg,
.btn-secondary:hover svg {
  transform: scale(1.1) rotate(5deg);
}

.btn-section .btn-icon {
  transition: transform 0.3s ease;
}

.btn-section:hover .btn-icon {
  transform: scale(1.05);
}

.btn-section .btn-arrow {
  transition: transform 0.3s ease;
}

.btn-section:hover .btn-arrow {
  transform: translateX(2px);
}

/* Enhanced Dark Mode Card Styles */
.dark .paper-card {
  background: rgba(30, 41, 59, 0.95) !important;
  border-color: rgba(255, 255, 255, 0.1) !important;
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.3),
    0 2px 6px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1) !important;
}

.dark .paper-card:hover {
  background: rgba(30, 41, 59, 1) !important;
  border-color: rgba(59, 130, 246, 0.4) !important;
}

.dark .person-card {
  background: rgba(30, 41, 59, 0.95) !important;
  border-color: rgba(255, 255, 255, 0.1) !important;
}

.dark .person-name-card {
  background: rgba(30, 41, 59, 0.95) !important;
  border-color: rgba(255, 255, 255, 0.1) !important;
}

.dark .academic-metric {
  background: rgba(30, 41, 59, 0.95) !important;
  border-color: rgba(255, 255, 255, 0.1) !important;
}