/* Modern styles with enhanced animations and effects */

:root {
  --primary: #18BC9C;
  --secondary: #2C3E50;
  --gradient-primary: linear-gradient(135deg, #18BC9C 0%, #128f76 100%);
  --gradient-dark: linear-gradient(135deg, #2C3E50 0%, #1a252f 100%);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --shadow-hover: 0 15px 30px rgba(0,0,0,0.15);
}

/* Smooth scrolling and animations */
html {
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
}

/* Enhanced header animations */
.masthead {
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.masthead::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTQ4MCIgaGVpZ2h0PSI2NTAiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+ICAgIDxwYXRoIGQ9Ik03MzEuMjA3IDY0OS44MDJDOTM1LjQ4NCA2NDkuODAyIDExMDIuMzggNTA1LjM1NyAxMTAyLjM4IDMyOC41MDJDMTEwMi4zOCAxNTEuNjQ3IDkzNS40ODQgNy4yMDE2NiA3MzEuMjA3IDcuMjAxNjZDNTI2LjkzIDcuMjAxNjYgMzYwLjAzNCAxNTEuNjQ3IDM2MC4wMzQgMzI4LjUwMkMzNjAuMDM0IDUwNS4zNTcgNTI2LjkzIDY0OS44MDIgNzMxLjIwNyA2NDkuODAyWiIgZmlsbD0id2hpdGUiIGZpbGwtb3BhY2l0eT0iMC4xIi8+PC9zdmc+') no-repeat center center;
  opacity: 0.1;
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.1; }
  50% { transform: scale(1.05); opacity: 0.15; }
}

/* Enhanced profile image effects */
.profile-img {
  position: relative;
  transition: var(--transition-smooth);
}

.profile-img::after {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  border-radius: 50%;
  background: var(--gradient-primary);
  z-index: -1;
  opacity: 0;
  transition: var(--transition-smooth);
}

.profile-img:hover {
  transform: scale(1.02) translateY(-5px);
}

.profile-img:hover::after {
  opacity: 0.2;
  transform: scale(1.1);
}

/* Modern card designs */
.card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: var(--transition-smooth);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(31, 38, 135, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
}

/* Enhanced icon animations */
.icon-circle {
  position: relative;
  overflow: hidden;
}

.icon-circle::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition-smooth);
  z-index: 0;
}

.icon-circle:hover::before {
  opacity: 0.1;
}

.icon-circle i {
  position: relative;
  z-index: 1;
  transition: var(--transition-smooth);
}

.icon-circle:hover i {
  transform: scale(1.2);
  color: var(--primary);
}

/* Modern button styles */
.btn {
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

/* Enhanced expertise badges */
.expertise-badges .badge {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.expertise-badges .badge:hover {
  background: rgba(255, 255, 255, 0.25);
  box-shadow: var(--shadow-hover);
}

.expertise-badges .badge i {
  transition: var(--transition-smooth);
}

.expertise-badges .badge:hover i {
  transform: scale(1.2);
}

/* Project card enhancements */
.hover-effect {
  transition: var(--transition-smooth);
  border: none;
  background: linear-gradient(145deg, #ffffff, #f5f5f5);
  box-shadow: var(--shadow-md);
}

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

.hover-effect .fa {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: var(--transition-smooth);
}

.hover-effect:hover .fa {
  transform: scale(1.2) rotate(360deg);
}

/* List item animations */
.list-unstyled li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  opacity: 0.9;
  transition: var(--transition-smooth);
}

.list-unstyled li:hover {
  opacity: 1;
  transform: translateX(5px);
}

.list-unstyled li .fa {
  position: absolute;
  left: 0;
  top: 0.25rem;
  color: var(--primary);
  transition: var(--transition-smooth);
}

.list-unstyled li:hover .fa {
  transform: scale(1.2);
}

/* Enhanced Section transitions */
section {
  position: relative;
  overflow: hidden;
  transition: background-color 0.5s ease;
}

section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(24,188,156,0.3), transparent);
  transform: scaleX(0.8);
  opacity: 0.8;
  transition: transform 0.6s ease, opacity 0.6s ease;
}

section:hover::before {
  transform: scaleX(1);
  opacity: 1;
}

/* Scroll to top enhancement */
.scroll-to-top {
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-to-top a {
  background: var(--gradient-primary);
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
}

.scroll-to-top a:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* Contact form enhancement */
.form-control {
  border: 2px solid transparent;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.2rem rgba(24,188,156,0.25);
  transform: translateY(-2px);
}

/* Footer social icons enhancement */
.btn-social {
  position: relative;
  overflow: hidden;
}

.btn-social::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition-smooth);
}

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

.btn-social i {
  position: relative;
  z-index: 1;
  transition: var(--transition-smooth);
}

.btn-social:hover i {
  transform: scale(1.2);
  color: white;
}