/* Root Variables */
:root {
  --primary-bg: #0f172a;
  --darker-bg: #1a2238;
  --card-bg: #1e293b;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --accent-color: #327ffc;
  --accent-hover: #0b42da;
  --light-accent: #60a5fa;
  --nav-height: 80px;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;

  /* Shadows */
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
  --shadow-primary: 0 0 15px rgba(50, 127, 252, 0.5);

  /* Border radius */
  --border-radius: 12px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition: all 0.3s ease;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--primary-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

a {
  text-decoration: none;
  color: var(--accent-color);
  transition: var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

p {
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.preloader.loaded {
  opacity: 0;
  visibility: hidden;
}

.preloader-inner {
  text-align: center;
}

.preloader-grid {
  width: 50px;
  height: 50px;
  background: linear-gradient(45deg, var(--accent-color), var(--accent-hover));
  border-radius: 8px;
  margin-bottom: 1rem;
  animation: grid-pulse 1.5s infinite;
}

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

.preloader-spinner {
  position: relative;
  width: 60px;
  height: 60px;
  margin: 0 auto;
}

.spinner-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 4px solid transparent;
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.spinner-ring.ring-delayed {
  animation-delay: 0.5s;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.preloader-text {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-top: 1rem;
}

.preloader-percentage {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-top: 0.5rem;
}

.preloader-progress {
  width: 200px;
  height: 4px;
  background: var(--darker-bg);
  margin-top: 0.5rem;
  border-radius: 2px;
  overflow: hidden;
}

.preloader-progress::after {
  content: '';
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent-color);
  transition: width 0.1s linear;
}

/* Navigation */
.navbar {
  background: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transition: var(--transition);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.navbar.scrolled {
  background: var(--darker-bg);
  box-shadow: var(--box-shadow);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  color: var(--text-primary);
}

.navbar-brand img {
  height: 40px;
  transition: var(--transition);
}

.navbar-brand:hover img {
  transform: scale(1.1);
}

.nav-link {
  color: var(--text-primary);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 1rem !important;
  margin: 0 0.25rem;
  transition: var(--transition);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1rem;
  width: calc(100% - 2rem);
  height: 2px;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.navbar-toggler {
  border: none;
  padding: 0.5rem;
}

.navbar-toggler .line {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: var(--transition);
}

.navbar-toggler:hover .line {
  background: var(--accent-color);
}

.btn-resume {
  margin-left: 0.5rem;
  padding: 0.5rem 1rem;
  max-height: fit-content;
  align-self: center;
  background-color: var(--accent-hover);
  color: var(--text-primary);
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: var(--transition);
}

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

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
  transform-origin: left;
  z-index: 1000;
  transition: transform 0.1s ease;
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 20px) 0 80px;
  overflow: hidden;
  background: linear-gradient(to bottom, var(--glass-bg), var(--darker-bg));
}

.hero-content {
  max-width: 600px;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.text-gradient {
  background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: 2rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.typing-text {
  color: var(--accent-color);
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.hero-cta .btn {
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  margin-right: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
  gap: var(--space-xs);
  -webkit-user-select: none;
  user-select: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
  pointer-events: auto;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
  z-index: -1;
  transition: opacity 0.3s ease;
  opacity: 0;
}

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

.btn-primary {
  background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
  border: none;
  box-shadow: var(--box-shadow);
  color: var(--text-primary);
  z-index: 10;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(50, 127, 252, 0.3);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--glass-border);
  color: var(--text-primary);
  z-index: 10;
}

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

.hero-social a {
  font-size: 1.5rem;
  margin-right: 1rem;
  color: var(--text-secondary);
}

.hero-social a:hover {
  color: var(--accent-color);
  transform: translateY(-2px);
}

.hero-image-wrapper {
  position: relative;
  text-align: center;
  z-index: 2;
}

.profile-image-container {
  position: relative;
  display: inline-block;
  width: 350px;
  height: 350px;
  overflow: visible;
  z-index: 2;
}

.profile-image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid var(--text-primary);
  z-index: 2;
  transition: var(--transition);
}

.profile-image-container:hover .profile-image {
  transform: scale(1.05);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.profile-glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(50, 127, 252, 0.3) 0%, transparent 70%);
  z-index: 1;
}

.tech-icons {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  overflow: visible;
}

.tech-icons .icon {
  position: absolute;
  width: 60px;
  height: 60px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  box-shadow: var(--box-shadow);
  animation: float 6s ease-in-out infinite;
  opacity: 1 !important;
  visibility: visible !important;
}

.tech-icons .icon:hover {
  background: var(--accent-color);
  transform: scale(1.1) translateY(-5px) !important;
  box-shadow: 0 10px 20px rgba(50, 127, 252, 0.3);
}

.tech-icons .icon img {
  width: 35px;
  height: 35px;
}

.tech-icons .react { top: 10%; left: 5%; animation-delay: 0.2s; }
.tech-icons .js { top: 10%; right: 5%; animation-delay: 0.6s; }
.tech-icons .mongodb { bottom: 10%; left: 5%; animation-delay: 0.4s; }
.tech-icons .python { bottom: 10%; right: 5%; animation-delay: 1.2s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.tech-icons .icon[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--darker-bg);
  color: var(--text-primary);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  font-size: 0.85rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 11;
}

.tech-icons .icon:hover[data-tooltip]::after {
  opacity: 1;
  visibility: visible;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
}

.mouse {
  width: 26px;
  height: 40px;
  border: 2px solid var(--text-secondary);
  border-radius: 13px;
  position: relative;
}

.wheel {
  width: 4px;
  height: 8px;
  background: var(--text-secondary);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-wheel 1.5s infinite;
}

@keyframes scroll-wheel {
  0% { transform: translate(-50%, 0); opacity: 1; }
  100% { transform: translate(-50%, 10px); opacity: 0; }
}

.arrow span {
  display: block;
  width: 10px;
  height: 10px;
  border-bottom: 2px solid var(--text-secondary);
  border-right: 2px solid var(--text-secondary);
  transform: rotate(45deg);
  margin: -5px auto;
  animation: scroll-arrow 1.5s infinite;
}

.arrow span:nth-child(2) { animation-delay: 0.15s; }
.arrow span:nth-child(3) { animation-delay: 0.3s; }

@keyframes scroll-arrow {
  0% { opacity: 0; transform: rotate(45deg) translate(-5px, -5px); }
  50% { opacity: 1; }
  100% { opacity: 0; transform: rotate(45deg) translate(5px, 5px); }
}

/* Particles.js */
#particles-js {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  background-color: transparent;
  opacity: 0.5;
  pointer-events: none;
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-title {
  font-size: 2.5rem;
  position: relative;
  display: inline-block;
  color: var(--text-primary);
}

.section-subtitle {
  display: inline-block;
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-color);
  margin-bottom: var(--space-sm);
}

.section-description {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.divider {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
  margin: var(--space-md) auto;
  border-radius: var(--radius-full);
}

/* About Section */
.about-section {
  padding: 80px 0;
}

.about-image-col {
  text-align: center;
}

.about-image-wrapper {
  position: relative;
  display: inline-block;
}

.about-image {
  width: 300px;
  height: 300px;
  border-radius: var(--border-radius);
  object-fit: cover;
  border: 3px solid var(--glass-border);
  transition: var(--transition);
}

.about-image:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

.about-image-bg {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 100%;
  height: 100%;
  background: var(--glass-bg);
  border-radius: var(--border-radius);
  z-index: -1;
}

.about-experience {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--accent-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-md);
}

.exp-number {
  font-size: 1.5rem;
  font-weight: 700;
}

.exp-text {
  font-size: 0.9rem;
  line-height: 1.2;
}

.about-content h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.about-tabs .nav-tabs {
  border: none;
  justify-content: center;
  margin-bottom: 2rem;
}

.about-tabs .nav-link {
  color: var(--text-secondary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 0.5rem 1rem;
  margin: 0 0.5rem;
  transition: var(--transition);
}

.about-tabs .nav-link.active,
.about-tabs .nav-link:hover {
  background: var(--accent-color);
  color: var(--text-primary);
  border-color: var(--accent-color);
}

.skills-list .skill-item {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.skill-name {
  width: 150px;
  font-weight: 500;
}

.skill-level {
  flex-grow: 1;
  height: 8px;
  background: var(--darker-bg);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--accent-color);
  transition: width 1s ease;
}

.timeline {
  position: relative;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 4px;
  height: 100%;
  background: var(--glass-border);
  transform: translateX(-50%);
}

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

.timeline-date {
  width: 50%;
  text-align: right;
  padding-right: 2rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.timeline-content {
  width: 50%;
  padding-left: 2rem;
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1rem;
  position: relative;
  box-shadow: var(--shadow-md);
}

.timeline-icon {
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.timeline-header h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.timeline-header h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.timeline-company {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.timeline-description {
  list-style: none;
  margin: 1rem 0;
  padding-left: 1rem;
}

.timeline-description li {
  position: relative;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.timeline-description li::before {
  content: '•';
  position: absolute;
  left: -1rem;
  color: var(--accent-color);
}

.timeline-tech span {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  display: inline-block;
}

.hobbies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 1rem;
}

.hobby-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  transition: var(--transition);
}

.hobby-item:hover {
  background: var(--accent-color);
  transform: translateY(-5px);
}

.hobby-item i {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--accent-color);
}

.hobby-item:hover i {
  color: var(--text-primary);
}

.hobby-item span {
  display: block;
  font-size: 0.9rem;
}

/* Skills Section */
.skills-section {
  padding: 80px 0;
}

.skills-tabs .nav-pills {
  justify-content: center;
  margin-bottom: 2rem;
}

.skills-tabs .nav-link {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  margin: 0 0.5rem;
}

.skills-tabs .nav-link.active,
.skills-tabs .nav-link:hover {
  background: var(--accent-color);
  color: var(--text-primary);
  border-color: var(--accent-color);
}

.skill-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 1rem;
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  transition: var(--transition);
  opacity: 1;
  visibility: visible;
}

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

.skill-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
}

.skill-icon img {
  width: 40px;
  height: 40px;
}

.skill-info h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.skill-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.skill-progress {
  height: 8px;
  background: var(--darker-bg);
  border-radius: 4px;
  overflow: hidden;
}

.skill-progress .progress-bar {
  background: var(--accent-color);
}

.skill-progress .progress-bar.learning {
  background: var(--light-accent);
}

/* Projects Section */
.projects-section {
  padding: 80px 0;
}

.projects-filter {
  text-align: center;
  margin-bottom: 2rem;
}

.filter-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  margin: 0 0.5rem;
  transition: var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--accent-color);
  color: var(--text-primary);
  border-color: var(--accent-color);
}

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

.project-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  width: 500px;
  max-width: 100%;
}

.project-card.hidden {
  display: none;
}

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

.project-image {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 250px;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.project-card.filtered .project-image img {
  transform: scale3d(1.05);
}

.project-card:hover .project-image img:not(.filtered) {
  transform: scale(1.05);
}

.project-links {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

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

.project-link {
  background: var(--accent-color);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0.5rem;
  color: var(--text-primary);
  font-size: 1.2rem;
  transition: var(--transition);
}

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

.project-info {
  padding: 1.5rem;
}

.project-info h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.project-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.project-tech span {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  display: inline-block;
}

/* Cyberpunk Marquee */
.cyberpunk-marquee {
  background: var(--darker-bg);
  overflow: hidden;
  padding: 1rem 0;
}

.marquee-content {
  display: flex;
  width: max-content;
  animation: marquee 20s linear infinite;
}

.marquee-text {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-right: 2rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Experience Section */
.experience-section {
  padding: 80px 0;
}

/* Contact Section */
.contact-section {
  padding: 80px 0;
}

.contact-info-item {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  font-size: 1.2rem;
  color: var(--accent-color);
}

.contact-details h4 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.contact-details a,
.contact-details span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.contact-details a:hover {
  color: var(--accent-color);
}

.contact-social h4 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.social-links a {
  font-size: 1.5rem;
  margin-right: 1rem;
  color: var(--text-secondary);
}

.social-links a:hover {
  color: var(--accent-color);
  transform: translateY(-2px);
}

.contact-form {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.chatbot {
  display: flex;
  flex-direction: column;
  height: 400px;
}

.chatbot-messages {
  flex-grow: 1;
  overflow-y: auto;
  padding: 1rem;
  background: var(--darker-bg);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.message {
  margin-bottom: 1rem;
  display: flex;
}

.message.bot {
  justify-content: flex-start;
}

.message.user {
  justify-content: flex-end;
}

.message span {
  max-width: 70%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
}

.message.bot span {
  background: var(--accent-color);
  color: var(--text-primary);
}

.message.user span {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

.chatbot-input {
  display: flex;
  align-items: center;
}

.chatbot-input input {
  flex-grow: 1;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: 0.75rem;
  border-radius: var(--radius-md);
  margin-right: 0.5rem;
}

.chatbot-input input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 5px rgba(50, 127, 252, 0.5);
}

.chatbot-input button {
  padding: 0.75rem;
  border-radius: var(--radius-md);
}

/* Footer */
.footer {
  background: var(--darker-bg);
  padding: 3rem 0 2rem;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.footer-brand {
  flex: 1;
  min-width: 250px;
}

.footer-logo {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-color);
  display: inline-block;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-social a {
  font-size: 1.5rem;
  margin-right: 1rem;
  color: var(--text-secondary);
}

.footer-social a:hover {
  color: var(--accent-color);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-column {
  min-width: 150px;
}

.footer-column h4 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.footer-column ul {
  list-style: none;
}

.footer-column ul li {
  margin-bottom: 0.5rem;
}

.footer-column ul li a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-column ul li a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  padding-top: 1rem;
  border-top: 1px solid var(--glass-border);
}

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

.footer-credits {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-credits i {
  color: var(--accent-color);
}

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--accent-color);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 1.2rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

.back-to-top:hover {
  background: var(--accent-hover);
  transform: translateY(-5px);
}

/* Responsive Design */
@media (max-width: 991px) {
  .navbar-nav {
    padding: 1rem 0;
    background: var(--darker-bg);
    border-radius: var(--radius-md);
  }

  .nav-item {
    margin: 0.5rem 0;
  }

  .btn-resume {
    margin: 0.5rem 0;
    display: inline-block;
  }

  .hero-section {
    padding: calc(var(--nav-height) + 10px) 0 60px;
    text-align: center;
  }

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

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

  .hero-image-wrapper {
    margin-top: 2rem;
  }

  .profile-image-container {
    width: 250px;
    height: 250px;
  }

  .about-section .row {
    flex-direction: column;
  }

  .about-image-col {
    margin-bottom: 2rem;
  }

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

  .timeline-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .timeline-date {
    width: 100%;
    text-align: left;
    padding-right: 0;
    margin-bottom: 0.5rem;
  }

  .timeline-content {
    width: 100%;
    padding-left: 3rem;
  }

  .timeline-icon {
    left: -10px;
  }

  .contact-section .row {
    flex-direction: column;
  }

  .contact-info {
    margin-bottom: 2rem;
  }

  .projects-grid {
    justify-items: center;
  }
}

@media (max-width: 767px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

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

  .about-image {
    width: 200px;
    height: 200px;
  }

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

@media (max-width: 576px) {
  .hero-title {
    font-size: 1.8rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .profile-image-container {
    width: 200px;
    height: 200px;
  }

  .tech-icons .icon {
    width: 50px;
    height: 50px;
  }

  .tech-icons .icon img {
    width: 30px;
    height: 30px;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
  }
}