/* Base Styles and Variables */
:root {
  --primary-color: #6366f1;
  --secondary-color: #4f46e5;
  --accent-color: #818cf8;
  --text-color: #1f2937;
  --text-light: #4b5563;
  --bg-color: #ffffff;
  --bg-light: #f9fafb;
  --bg-dark: #111827;
  --border-color: #e5e7eb;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --gradient-1: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  --gradient-2: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
  --gradient-3: linear-gradient(135deg, #4f46e5 0%, #2563eb 100%);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --transition: all 0.3s ease;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-full: 9999px;
  --container-width: 1200px;
  --header-height: 80px;
}

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

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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans",
    "Helvetica Neue", sans-serif;
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

button,
input,
textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
}

/* Custom Cursor */
.cursor {
  position: fixed;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--primary-color);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s, background-color 0.3s;
  mix-blend-mode: difference;
}

.cursor-follower {
  position: fixed;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: rgba(99, 102, 241, 0.2);
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition:
    0.15s cubic-bezier(0.75, -0.27, 0.3, 1.33) transform, 0.2s cubic-bezier(0.75, -0.27, 0.3, 1.33) width, 0.2s cubic-bezier(
      0.75,
      -0.27,
      0.3,
      1.33
    ) height, 0.2s cubic-bezier(0.75, -0.27, 0.3, 1.33) background-color, 0.2s cubic-bezier(0.75, -0.27, 0.3, 1.33) border;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

header.scrolled {
  height: 70px;
  box-shadow: var(--shadow-md);
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  cursor: pointer;
}

nav ul {
  display: flex;
  gap: 2rem;
}

nav ul li a {
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

nav ul li a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  transition: var(--transition);
}

nav ul li a:hover::after,
nav ul li a.active::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.menu-toggle .bar {
  width: 30px;
  height: 3px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, rgba(79, 70, 229, 0.05) 100%);
  z-index: -1;
}

.hero .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-content h1 {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards;
}

.hero-content h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--text-light);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s 0.2s forwards;
}

.hero-content p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s 0.4s forwards;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s 0.6s forwards;
}

.hero-image {
  flex: 1;
  position: relative;
  opacity: 0;
  transform: translateX(20px);
  animation: fadeInRight 1s 0.8s forwards;
  z-index: -1;
}

.gradient-circle {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: var(--gradient-2);
  filter: blur(60px);
  opacity: 0.3;
  z-index: -1;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulse 6s infinite alternate;
}

.hero-image img {
  position: relative;
  z-index: 1;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 50%;
  height: auto;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.7;
  transition: var(--transition);
}

.scroll-indicator:hover {
  opacity: 1;
}

.mouse {
  width: 30px;
  height: 50px;
  border: 2px solid var(--primary-color);
  border-radius: 20px;
  position: relative;
}

.wheel {
  width: 6px;
  height: 6px;
  background-color: var(--primary-color);
  border-radius: 50%;
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 1.5s infinite;
}

.arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.arrow span {
  display: block;
  width: 10px;
  height: 10px;
  border-bottom: 2px solid var(--primary-color);
  border-right: 2px solid var(--primary-color);
  transform: rotate(45deg);
  animation: scrollArrow 1.5s infinite;
}

.arrow span:nth-child(2) {
  animation-delay: 0.2s;
}

.arrow span:nth-child(3) {
  animation-delay: 0.4s;
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.btn.primary {
  background: var(--gradient-1);
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn.primary:hover {
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
  transform: translateY(-2px);
}

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

.btn.secondary:hover {
  background-color: var(--primary-color);
  color: white;
}

/* About Section */
.about {
  padding: 6rem 0;
  background-color: var(--bg-light);
  position: relative;
  overflow: hidden;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.underline {
  width: 80px;
  height: 4px;
  background: var(--gradient-1);
  margin: 0 auto;
  border-radius: var(--border-radius-full);
}

.about-content {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.about-text {
  flex: 1;
}

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.personal-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin: 2rem 0;
}

.info-item {
  display: flex;
  flex-direction: column;
}

.info-title {
  font-weight: 600;
  color: var(--text-light);
}

.info-value {
  font-weight: 500;
}

.about-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.about-image {
  flex: 1;
  position: relative;
}

.image-wrapper {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gradient-box {
  position: absolute;
  width: 100%;
  height: 100%;
  background: var(--gradient-2);
  opacity: 0.1;
  z-index: 1;
}

.about-image img {
  position: relative;
  z-index: 2;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Skills Section */
.skills {
  padding: 6rem 0;
  position: relative;
}

.skills::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: var(--gradient-3);
  filter: blur(150px);
  opacity: 0.1;
  z-index: -1;
}

.skills-content {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

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

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 2rem;
}

.skill-item {
  background-color: white;
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.skill-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-1);
}

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

.skill-icon {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.skill-item h4 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.skill-progress {
  width: 100%;
  height: 6px;
  background-color: var(--border-color);
  border-radius: var(--border-radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--gradient-1);
  border-radius: var(--border-radius-full);
  width: 0;
  transition: width 1.5s ease-in-out;
}

/* Experience Section */
.experience {
  padding: 6rem 0;
  background-color: var(--bg-light);
  position: relative;
}

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

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: var(--gradient-1);
}

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

.timeline-dot {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gradient-1);
  z-index: 1;
}

.timeline-content {
  position: relative;
  width: calc(50% - 40px);
  padding: 1.5rem;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.timeline-item:nth-child(odd) .timeline-content {
  left: 0;
}

.timeline-item:nth-child(even) .timeline-content {
  left: calc(50% + 40px);
}

.timeline-date {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--gradient-1);
  color: white;
  border-radius: var(--border-radius);
  font-weight: 500;
  margin-bottom: 1rem;
}

.timeline-content h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.timeline-content h4 {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 1rem;
  font-weight: 500;
}

.alternate-timeline-content h4{
  color: white;
}

.timeline-content ul {
  padding-left: 1.5rem;
}

.timeline-content ul li {
  position: relative;
  padding-left: 0.5rem;
  margin-bottom: 0.5rem;
  list-style-type: disc;
}

.timeline-item.education .timeline-content {
  background: var(--gradient-1);
  color: white;
}

.timeline-item.education .timeline-date {
  background: white;
  color: var(--primary-color);
}

/* Projects Section */
.projects {
  padding: 6rem 0;
  position: relative;
}

.projects::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 400px;
  height: 400px;
  background: var(--gradient-2);
  filter: blur(150px);
  opacity: 0.1;
  z-index: -1;
}

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

.project-card {
  background-color: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.project-image {
  position: relative;
  overflow: hidden;
  height: 200px;
}

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

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(79, 70, 229, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

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

.project-link {
  padding: 0.75rem 1.5rem;
  background-color: white;
  color: var(--primary-color);
  border-radius: var(--border-radius);
  font-weight: 500;
  transform: translateY(20px);
  transition: var(--transition);
}

.project-card:hover .project-link {
  transform: translateY(0);
}

.project-info {
  padding: 1.5rem;
}

.project-info h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.project-info p {
  margin-bottom: 1.5rem;
  color: var(--text-light);
}

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

.project-tags span {
  padding: 0.25rem 0.75rem;
  background-color: var(--bg-light);
  border-radius: var(--border-radius-full);
  font-size: 0.85rem;
  font-weight: 500;
}

/* Certifications Section */
.certifications {
  padding: 6rem 0;
  background-color: var(--bg-light);
}

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

.certification-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background-color: white;
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.certification-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
}

.certification-info h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.certification-info p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* Contact Section */
.contact {
  padding: 6rem 0;
  position: relative;
}

.contact::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: var(--gradient-3);
  filter: blur(150px);
  opacity: 0.1;
  z-index: -1;
}

.contact-content {
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
}

.contact-text h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

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

.social-link {
  width: 40px;
  height: 40px;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-link:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.4);
}

.contact-form {
  background-color: white;
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  max-width: 800px;
  width: 100%;
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

/* Footer */
footer {
  background-color: var(--bg-dark);
  color: white;
  padding: 3rem 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer-logo {
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

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

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: var(--shadow-md);
}

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

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.5);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes pulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.3;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.05);
    opacity: 0.4;
  }
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.3;
  }
}

@keyframes scrollWheel {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
}

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

/* Responsive Styles */
@media (max-width: 1200px) {
  .hero-content h1 {
    font-size: 3.5rem;
  }

  .hero-content h2 {
    font-size: 1.8rem;
  }
}

@media (max-width: 992px) {
  .hero .container {
    flex-direction: column;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-buttons {
    justify-content: center;
  }

  .about-content {
    flex-direction: column;
  }

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

  .timeline::before {
    left: 30px;
  }

  .timeline-dot {
    left: 30px;
  }

  .timeline-content {
    width: calc(100% - 80px);
    left: 80px !important;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  nav {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 80%;
    height: calc(100vh - var(--header-height));
    background-color: white;
    box-shadow: var(--shadow);
    transition: var(--transition);
    z-index: 1000;
  }

  nav.active {
    left: 0;
  }

  nav ul {
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.active .bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

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

  .menu-toggle.active .bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  .hero-content h1 {
    font-size: 3rem;
  }

  .hero-content h2 {
    font-size: 1.5rem;
  }

  .personal-info {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 576px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }

  .section-header h2 {
    font-size: 2rem;
  }

  .about-buttons,
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

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