/* Modern CSS with Dark Mode Support */
:root {
  /* Light Mode Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-muted: #868e96;
  --accent-primary: #2d3748;
  --accent-secondary: #4a5568;
  --accent-success: #38a169;
  --accent-warning: #d69e2e;
  --accent-danger: #e53e3e;
  --border-color: #dee2e6;
  --shadow-light: rgba(0, 0, 0, 0.1);
  --shadow-medium: rgba(0, 0, 0, 0.15);
  --shadow-heavy: rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 5rem;
}

[data-theme="dark"] {
  /* Dark Mode Colors */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --text-primary: #f0f6fc;
  --text-secondary: #c9d1d9;
  --text-muted: #8b949e;
  --accent-primary: #60a5fa;
  --accent-secondary: #a78bfa;
  --accent-success: #34d399;
  --accent-warning: #fbbf24;
  --accent-danger: #f87171;
  --border-color: #30363d;
  --shadow-light: rgba(0, 0, 0, 0.3);
  --shadow-medium: rgba(0, 0, 0, 0.4);
  --shadow-heavy: rgba(0, 0, 0, 0.6);
}

/* Base Styles */
* {
  transition: background-color var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal);
}

html {
  --scroll-behavior: smooth;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  padding-top: 54px;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (min-width: 992px) {
  body {
    padding-top: 0;
    padding-left: 15rem;
  }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', 'Saira Extra Condensed', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1, h2 {
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1.1;
  background: linear-gradient(135deg, #2d3748, #4a5568, #718096);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h3 {
  font-size: 1.75rem;
  font-weight: 600;
}

.subheading {
  text-transform: uppercase;
  font-weight: 500;
  font-family: 'Inter', 'Saira Extra Condensed', sans-serif;
  font-size: 1.35rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
}

/* Navigation */
#sideNav {
  background: linear-gradient(135deg, #2d3748, #4a5568, #718096) !important;
  box-shadow: 0 0 20px var(--shadow-medium);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
}

#sideNav .navbar-nav .nav-item .nav-link {
  font-weight: 600;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.9) !important;
  transition: all var(--transition-fast);
  position: relative;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  margin: var(--spacing-xs) 0;
}

#sideNav .navbar-nav .nav-item .nav-link:hover {
  color: #ffffff !important;
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateX(5px);
}

#sideNav .navbar-nav .nav-item .nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: #ffffff;
  transform: scaleY(0);
  transition: transform var(--transition-fast);
}

#sideNav .navbar-nav .nav-item .nav-link:hover::before {
  transform: scaleY(1);
}

@media (min-width: 992px) {
  #sideNav {
    text-align: center;
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    width: 17rem;
    height: 100vh;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  }
  
  #sideNav .navbar-brand {
    display: flex;
    margin: auto auto 0;
    padding: var(--spacing-md);
  }
  
  #sideNav .navbar-brand .img-profile {
  max-width: 10rem;
  max-height: 10rem;
  border: 0.5rem solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  box-shadow: 0 10px 30px var(--shadow-heavy);
  transition: transform var(--transition-normal);
  position: relative;
  z-index: 10;
}
  
  #sideNav .navbar-brand .img-profile:hover {
    transform: scale(1.05);
  }
  
  #sideNav .navbar-collapse {
    display: flex;
    align-items: flex-start;
    flex-grow: 0;
    width: 100%;
    margin-bottom: auto;
  }
  
  #sideNav .navbar-collapse .navbar-nav {
    flex-direction: column;
    width: 100%;
  }
  
  #sideNav .navbar-collapse .navbar-nav .nav-item {
    display: block;
  }
  
  #sideNav .navbar-collapse .navbar-nav .nav-item .nav-link {
    display: block;
  }
}

/* Dark Mode Toggle */
.dark-mode-toggle {
  display: flex;
  align-items: center;
  margin-left: auto;
  z-index: 1000;
}

.modern-toggle-btn {
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  min-width: 80px;
}

.modern-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow-medium);
}

.modern-toggle-btn:active {
  transform: translateY(0);
}

.toggle-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

#darkModeIcon {
  font-size: 1rem;
}

/* Download Resume Button */
.modern-download-btn {
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  min-width: 120px;
  margin-left: var(--spacing-md);
}

.modern-download-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow-medium);
}

.modern-download-btn:active {
  transform: translateY(0);
}

.modern-download-btn .download-text {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

@media (max-width: 768px) {
  .modern-download-btn {
    min-width: auto;
    padding: var(--spacing-sm);
  }
  
  .modern-download-btn .download-text {
    display: none;
  }
}

/* Notification Styles */
.notification {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
}

.notification-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.notification-content i {
  font-size: 1.1rem;
}

.notification-content span {
  font-size: 0.9rem;
}

/* Sections */
section.resume-section {
  border-bottom: 1px solid var(--border-color);
  padding-top: var(--spacing-xxl) !important;
  padding-bottom: var(--spacing-xxl) !important;
  background: var(--bg-primary);
  position: relative;
}

section.resume-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
}

section.resume-section .resume-item .resume-date {
  min-width: none;
  color: var(--text-muted);
  font-weight: 500;
}

@media (min-width: 768px) {
  section.resume-section {
    min-height: 100vh;
  }
  section.resume-section .resume-item .resume-date {
    min-width: 18rem;
  }
}

@media (min-width: 992px) {
  section.resume-section {
    padding-top: var(--spacing-xl) !important;
    padding-bottom: var(--spacing-xl) !important;
  }
}

/* Cards and Components */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 6px var(--shadow-light);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px var(--shadow-medium);
}

.card-header {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-md);
}

.card-body {
  padding: var(--spacing-md);
}

/* Buttons */
.btn {
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: all var(--transition-fast);
  padding: var(--spacing-sm) var(--spacing-lg);
}

.btn-primary {
  background: linear-gradient(135deg, #2d3748, #4a5568, #718096);
  border: none;
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px var(--shadow-medium);
}

/* Social Icons */
.list-social-icons a {
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  display: inline-block;
}

.list-social-icons a:hover {
  color: var(--accent-primary);
  transform: translateY(-3px);
}

.list-social-icons a .fa-lg {
  font-size: 1.75rem;
}

.list-icons {
  font-size: 3rem;
}

.list-icons .list-inline-item i:hover {
  color: var(--accent-primary);
  transform: scale(1.1);
}

/* Links */
a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

a:hover, a:focus, a:active {
  color: var(--accent-secondary);
  text-decoration: none;
}

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

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-secondary);
}

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
  .dark-mode-toggle {
    margin-left: var(--spacing-md);
  }
  
  .modern-toggle-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .toggle-label {
    display: none;
  }
  
  #darkModeIcon {
    font-size: 1.2rem;
  }
}

/* Loading Animation */
.loading {
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-normal);
}

.loading.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* Modern About Section Styles */
.modern-heading {
  position: relative;
  overflow: hidden;
}

.modern-subheading {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.email-link {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.email-link:hover {
  color: var(--accent-secondary);
  text-decoration: none;
}

.separator {
  color: var(--text-muted);
  font-weight: 300;
}

.location {
  color: var(--text-secondary);
  font-weight: 400;
}

/* Status Indicator */
.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  width: fit-content;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.2);
  }
}

.status-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Section Titles */
.section-title {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--accent-primary);
  width: fit-content;
}

.section-title i {
  color: var(--accent-primary);
}

/* Certifications Grid */
.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.certification-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: all var(--transition-normal);
  text-align: center;
}

.certification-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px var(--shadow-medium);
  border-color: var(--accent-primary);
}

.certification-link {
  display: block;
  text-decoration: none;
}

.certification-badge {
  width: 100%;
  height: auto;
  max-width: 100px;
  transition: transform var(--transition-fast);
}

.certification-card:hover .certification-badge {
  transform: scale(1.05);
}

/* Social Grid */
.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.social-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: all var(--transition-normal);
  text-align: center;
}

.social-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px var(--shadow-medium);
  border-color: var(--accent-primary);
}

.social-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.social-link:hover {
  color: var(--accent-primary);
  text-decoration: none;
}

.social-icon-wrapper {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #2d3748, #4a5568, #718096);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  transition: all var(--transition-fast);
}

.social-item:hover .social-icon-wrapper {
  transform: scale(1.1) rotate(5deg);
}

.social-name {
  font-weight: 500;
  font-size: 0.9rem;
}

/* GitHub Chart */
.github-section {
  margin-top: var(--spacing-xl);
}

.github-chart-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.github-chart-container:hover {
  box-shadow: 0 10px 25px var(--shadow-medium);
}

.github-chart {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-fast);
}

.github-chart-container:hover .github-chart {
  transform: scale(1.02);
}

/* Content Section */
.content-section {
  margin-top: var(--spacing-lg);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .modern-subheading {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }
  
  .certifications-grid {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  }
  
  .social-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }
  
  .section-title {
    font-size: 1.25rem;
  }
}

/* Modern Footer Styles */
.modern-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-xl) 0 var(--spacing-lg) 0;
  margin-top: var(--spacing-xxl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.footer-section h4,
.footer-section h5 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

.footer-brand h4 {
  font-size: 1.5rem;
  background: linear-gradient(135deg, #2d3748, #4a5568, #718096);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-tagline {
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 0;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  display: inline-block;
}

.footer-links a:hover {
  color: var(--accent-primary);
  transform: translateX(5px);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-social-link:hover {
  background: var(--accent-primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px var(--shadow-medium);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.footer-info p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-location {
  color: var(--text-secondary) !important;
  font-weight: 500;
}

.footer-tech {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.tech-badge {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.tech-badge:hover {
  background: var(--accent-primary);
  color: white;
  transform: translateY(-2px);
}

/* Footer responsive adjustments */
@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-tech {
    justify-content: center;
  }
}