/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

/* Added CSS variables for theme switching */
:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #e2e8f0;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent-primary: #60a5fa;
  --accent-secondary: #3b82f6;
  --border-color: rgba(148, 163, 184, 0.1);
  --shadow-color: rgba(0, 0, 0, 0.3);
  --gradient-primary: linear-gradient(135deg, #3b82f6, #60a5fa);
}

[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #e2e8f0;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --accent-primary: #3b82f6;
  --accent-secondary: #1d4ed8;
  --border-color: rgba(148, 163, 184, 0.2);
  --shadow-color: rgba(0, 0, 0, 0.1);
  --gradient-primary: linear-gradient(135deg, #1d4ed8, #3b82f6);
}

body {
  font-family: "Inter", sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
  transition: all 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Enhanced loading screen */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

.loading-content {
  text-align: center;
}

.loading-logo {
  font-size: 4rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 1rem;
  animation: pulse 2s infinite;
}

.loading-text {
  color: var(--text-secondary);
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.loading-bar {
  width: 200px;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 auto;
}

.loading-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 2px;
  animation: loading 3s ease-in-out infinite;
}

@keyframes loading {
  0% {
    width: 0%;
  }
  50% {
    width: 70%;
  }
  100% {
    width: 100%;
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* Particle Background */
#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -1;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-tertiary) 100%);
  transition: all 0.3s ease;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.3s ease;
  border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .navbar {
  background: rgba(255, 255, 255, 0.95);
}

.navbar.scrolled {
  background: rgba(15, 23, 42, 0.98);
  box-shadow: 0 4px 20px var(--shadow-color);
}

[data-theme="light"] .navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo a {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-logo a:hover {
  color: var(--accent-secondary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

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

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

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Added nav actions container and theme toggle */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  background: none;
  border: 2px solid var(--border-color);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  transform: scale(1.1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--text-secondary);
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-greeting {
  display: block;
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  opacity: 0;
  animation: fadeInUp 1s ease 0.2s forwards;
}

.hero-name {
  display: block;
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeInUp 1s ease 0.4s forwards;
}

.hero-subtitle {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--accent-primary);
  margin-bottom: 2rem;
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  animation: fadeInUp 1s ease 0.6s forwards;
}

.cursor {
  animation: blink 1s infinite;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  animation: fadeInUp 1s ease 0.8s forwards;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 1s ease 1s forwards;
}

.btn {
  padding: 12px 30px;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}

.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;
}

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

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--accent-primary);
  border: 2px solid var(--accent-primary);
}

.btn-secondary:hover {
  background: var(--accent-primary);
  color: var(--bg-primary);
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  animation: fadeInUp 1s ease 1.2s forwards;
}

.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--accent-primary);
  border-bottom: 2px solid var(--accent-primary);
  transform: rotate(45deg);
  margin-top: 10px;
  animation: bounce 2s infinite;
}

/* Section Styles */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 80px;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-line {
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  margin: 0 auto 2rem;
  border-radius: 2px;
}

.section-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* About Section */
.about {
  background: rgba(30, 41, 59, 0.3);
}

[data-theme="light"] .about {
  background: rgba(248, 250, 252, 0.8);
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.about-intro {
  font-size: 1.3rem !important;
  color: var(--text-primary) !important;
  font-weight: 500;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.stat-item {
  text-align: center;
  padding: 2rem;
  background: rgba(51, 65, 85, 0.3);
  border-radius: 15px;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease;
}

[data-theme="light"] .stat-item {
  background: rgba(255, 255, 255, 0.8);
}

.stat-item:hover {
  transform: translateY(-5px);
}

.stat-number {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-muted);
  font-size: 1rem;
}

/* Education Section */
.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-primary);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: 4rem;
  width: 50%;
}

.timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 3rem;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 3rem;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  top: 0;
  width: 20px;
  height: 20px;
  background: var(--accent-primary);
  border-radius: 50%;
  border: 4px solid var(--bg-primary);
  z-index: 1;
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -10px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -10px;
}

.timeline-content {
  background: rgba(51, 65, 85, 0.3);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease;
}

[data-theme="light"] .timeline-content {
  background: rgba(255, 255, 255, 0.8);
}

.timeline-content:hover {
  transform: translateY(-5px);
}

.timeline-date {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.timeline-content h3 {
  color: var(--text-primary);
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.timeline-content h4 {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.timeline-content p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Skills Section */
.skills {
  background: rgba(30, 41, 59, 0.3);
}

[data-theme="light"] .skills {
  background: rgba(248, 250, 252, 0.8);
}

.skills-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 4rem;
}

.skills-category h3 {
  color: var(--text-primary);
  font-size: 1.5rem;
  margin-bottom: 2rem;
  text-align: center;
}

.skill-item {
  margin-bottom: 2rem;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.skill-bar {
  height: 8px;
  background: rgba(51, 65, 85, 0.5);
  border-radius: 4px;
  overflow: hidden;
}

[data-theme="light"] .skill-bar {
  background: rgba(226, 232, 240, 0.8);
}

.skill-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 4px;
  width: 0;
  transition: width 2s ease;
}

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

.project-card {
  background: rgba(51, 65, 85, 0.3);
  border-radius: 15px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

[data-theme="light"] .project-card {
  background: rgba(255, 255, 255, 0.8);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--shadow-color);
}

.project-image {
  position: relative;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-link {
  width: 50px;
  height: 50px;
  background: var(--accent-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.project-link:hover {
  transform: scale(1.1);
}

.project-content {
  padding: 2rem;
}

.project-content h3 {
  color: var(--text-primary);
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.project-content p {
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project-tech span {
  background: rgba(96, 165, 250, 0.2);
  color: var(--accent-primary);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.9rem;
  border: 1px solid rgba(96, 165, 250, 0.3);
}

/* Achievements Section */
.achievements {
  background: rgba(30, 41, 59, 0.3);
}

[data-theme="light"] .achievements {
  background: rgba(248, 250, 252, 0.8);
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.achievement-item {
  background: rgba(51, 65, 85, 0.3);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: transform 0.3s ease;
}

[data-theme="light"] .achievement-item {
  background: rgba(255, 255, 255, 0.8);
}

.achievement-item:hover {
  transform: translateY(-5px);
}

.achievement-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: white;
}

.achievement-content h3 {
  color: var(--text-primary);
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.achievement-content p {
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.achievement-date {
  color: var(--accent-primary);
  font-weight: 600;
}

/* Experience Section */
.experience-timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.experience-timeline::before {
  content: "";
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-primary);
}

.experience-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 4rem;
}

.experience-dot {
  position: absolute;
  left: 21px;
  top: 0;
  width: 20px;
  height: 20px;
  background: var(--accent-primary);
  border-radius: 50%;
  border: 4px solid var(--bg-primary);
  z-index: 1;
}

.experience-content {
  background: rgba(51, 65, 85, 0.3);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease;
}

[data-theme="light"] .experience-content {
  background: rgba(255, 255, 255, 0.8);
}

.experience-content:hover {
  transform: translateX(10px);
}

.experience-date {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.experience-content h3 {
  color: var(--text-primary);
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.experience-content h4 {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.experience-content p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.experience-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.experience-skills span {
  background: rgba(96, 165, 250, 0.2);
  color: var(--accent-primary);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.9rem;
  border: 1px solid rgba(96, 165, 250, 0.3);
}

/* Contact Section */
.contact {
  background: rgba(30, 41, 59, 0.3);
}

[data-theme="light"] .contact {
  background: rgba(248, 250, 252, 0.8);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-item {
  display: flex;
  align-items: center;
  margin-bottom: 2rem;
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1.5rem;
  font-size: 1.5rem;
  color: white;
}

.contact-details h3 {
  color: var(--text-primary);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.contact-details p {
  color: var(--text-muted);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.social-link {
  width: 50px;
  height: 50px;
  background: rgba(51, 65, 85, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.3s ease;
}

[data-theme="light"] .social-link {
  background: rgba(255, 255, 255, 0.8);
}

.social-link:hover {
  background: var(--accent-primary);
  color: white;
  transform: translateY(-3px);
}

.contact-form {
  background: rgba(51, 65, 85, 0.3);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid var(--border-color);
}

[data-theme="light"] .contact-form {
  background: rgba(255, 255, 255, 0.8);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
  background: rgba(255, 255, 255, 0.9);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-error {
  color: #ef4444;
  font-size: 0.9rem;
  margin-top: 0.5rem;
  display: block;
}

/* Enhanced button with loading state */
.btn-loader {
  display: none;
}

.btn.loading .btn-text {
  display: none;
}

.btn.loading .btn-loader {
  display: inline-block;
}

/* Chatbot styles */
.chatbot-container {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 1000;
}

.chatbot-toggle {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
  transition: all 0.3s ease;
}

.chatbot-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4);
}

.chatbot-window {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 350px;
  height: 450px;
  background: var(--bg-secondary);
  border-radius: 15px;
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 40px var(--shadow-color);
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.chatbot-window.active {
  display: flex;
}

.chatbot-header {
  background: var(--gradient-primary);
  color: white;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chatbot-header h4 {
  margin: 0;
  font-size: 1.1rem;
}

.chatbot-close {
  background: none;
  border: none;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease;
}

.chatbot-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.chatbot-messages {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chatbot-message {
  max-width: 80%;
  animation: slideInUp 0.3s ease;
}

.bot-message {
  align-self: flex-start;
}

.user-message {
  align-self: flex-end;
}

.message-content {
  padding: 0.8rem 1rem;
  border-radius: 15px;
  font-size: 0.9rem;
  line-height: 1.4;
}

.bot-message .message-content {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-bottom-left-radius: 5px;
}

.user-message .message-content {
  background: var(--gradient-primary);
  color: white;
  border-bottom-right-radius: 5px;
}

.chatbot-input {
  padding: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 0.5rem;
}

.chatbot-input input {
  flex: 1;
  padding: 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 25px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.9rem;
}

.chatbot-input input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.chatbot-input button {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.chatbot-input button:hover {
  transform: scale(1.1);
}

/* Footer */
.footer {
  background: rgba(15, 23, 42, 0.8);
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid var(--border-color);
}

[data-theme="light"] .footer {
  background: rgba(248, 250, 252, 0.8);
}

.footer-content p {
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

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

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

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0) rotate(45deg);
  }
  40% {
    transform: translateY(-10px) rotate(45deg);
  }
  60% {
    transform: translateY(-5px) rotate(45deg);
  }
}

/* Scroll reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.6s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Enhanced responsive design */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background: rgba(15, 23, 42, 0.98);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    padding: 2rem 0;
    gap: 1rem;
  }

  [data-theme="light"] .nav-menu {
    background: rgba(255, 255, 255, 0.98);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-actions {
    gap: 0.5rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-stats {
    flex-direction: row;
    justify-content: space-around;
  }

  .stat-item {
    padding: 1rem;
  }

  .stat-number {
    font-size: 2rem;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    left: 0 !important;
    padding-left: 3rem !important;
    padding-right: 0 !important;
    text-align: left !important;
  }

  .timeline-dot {
    left: 11px !important;
    right: auto !important;
  }

  .skills-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .achievements-grid {
    grid-template-columns: 1fr;
  }

  .experience-timeline::before {
    left: 20px;
  }

  .experience-item {
    padding-left: 3rem;
  }

  .experience-dot {
    left: 11px;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .social-links {
    justify-content: center;
  }

  .chatbot-window {
    width: 300px;
    height: 400px;
  }

  .chatbot-container {
    bottom: 20px;
    right: 20px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  section {
    padding: 60px 0;
  }

  .hero-name {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .about-stats {
    flex-direction: column;
    gap: 1rem;
  }

  .contact-item {
    flex-direction: column;
    text-align: center;
  }

  .contact-icon {
    margin-right: 0;
    margin-bottom: 1rem;
  }

  .chatbot-window {
    width: calc(100vw - 40px);
    right: -10px;
  }
}

/* Added toast notification styles */
.toastify {
  font-family: "Inter", sans-serif !important;
  border-radius: 10px !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3) !important;
}

.toast-success {
  background: linear-gradient(135deg, #10b981, #059669) !important;
}

.toast-error {
  background: linear-gradient(135deg, #ef4444, #dc2626) !important;
}

.toast-info {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8) !important;
}