:root {
  --primary-color: #2563eb;
  --primary-light: #3b82f6;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-white: #ffffff;
  --bg-light: #f9fafb;
  --bg-gray: #f3f4f6;
  --border-color: #e5e7eb;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 100px 0;
}

h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

h2:after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(
    to right,
    var(--primary-color),
    var(--primary-light)
  );
  border-radius: 2px;
}

h3 {
  font-size: 1.5rem;
}

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

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

ul {
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 5px;
  font-weight: 500;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

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

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

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

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

.nav-menu li {
  margin-left: 30px;
}

.nav-menu a {
  font-weight: 500;
  position: relative;
}

.nav-menu a:after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

.nav-menu a:hover:after {
  width: 100%;
}

.hamburger {
  display: none;
  cursor: pointer;
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
  position: relative;
  overflow: hidden;
}

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

.hero h1 {
  margin-bottom: 1rem;
  animation: fadeInUp 1s ease;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease 0.2s both;
}

.hero-btns {
  display: flex;
  gap: 15px;
  animation: fadeInUp 1s ease 0.4s both;
}

.hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-light)
  );
  clip-path: polygon(25% 0%, 100% 0%, 100% 100%, 0% 100%);
  opacity: 0.1;
}

/* About Section */
.about {
  background-color: var(--bg-light);
}

.about-content {
  display: flex;
  align-items: center;
  gap: 50px;
}

.about-text {
  flex: 1;
}

.about-image {
  flex: 1;
  text-align: center;
}

.profile-img {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow);
  border: 5px solid white;
}

/* Skills Section */
.skills-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.skill-item {
  background-color: var(--bg-white);
  padding: 30px;
  border-radius: 10px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.skill-header {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.skill-icon {
  width: 50px;
  height: 50px;
  background-color: var(--bg-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  color: var(--primary-color);
  font-size: 1.5rem;
}

.skill-bar {
  height: 8px;
  background-color: var(--bg-gray);
  border-radius: 4px;
  margin-top: 10px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(
    to right,
    var(--primary-color),
    var(--primary-light)
  );
  border-radius: 4px;
}

/* Projects Section */
.projects {
  background-color: var(--bg-light);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
}

.project-card {
  background-color: var(--bg-white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-5px);
}

.project-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.project-content {
  padding: 20px;
}

.project-links {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

/* Startups Section */
.startup-card {
  background-color: var(--bg-white);
  padding: 30px;
  border-radius: 10px;
  box-shadow: var(--shadow);
  margin-bottom: 30px;
  transition: var(--transition);
}

.startup-card:hover {
  transform: translateY(-5px);
}

/* Blog Section */
.blog {
  background-color: var(--bg-light);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.blog-card {
  background-color: var(--bg-white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.blog-card:hover {
  transform: translateY(-5px);
}

.blog-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.blog-content {
  padding: 20px;
}

.blog-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 10px;
}

/* YouTube Section */
.youtube-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.video-card {
  background-color: var(--bg-white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.video-card:hover {
  transform: translateY(-5px);
}

.video-thumbnail {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.video-content {
  padding: 20px;
}

/* Education Section */
.education {
  background-color: var(--bg-light);
}

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

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

.timeline-item {
  width: 50%;
  padding: 20px 40px;
  position: relative;
}

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

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-item:before {
  content: "";
  position: absolute;
  top: 30px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--primary-color);
}

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

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

.timeline-content {
  background-color: var(--bg-white);
  padding: 20px;
  border-radius: 10px;
  box-shadow: var(--shadow);
}

/* Contact Section */
.contact-container {
  display: flex;
  gap: 50px;
}

.contact-info {
  flex: 1;
}

.contact-form {
  flex: 1;
}

.contact-item {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background-color: var(--bg-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  color: var(--primary-color);
  font-size: 1.2rem;
}

.form-group {
  margin-bottom: 20px;
}

.form-control {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  font-family: "Inter", sans-serif;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

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

/* Footer */
footer {
  background-color: var(--text-dark);
  color: white;
  padding: 50px 0 20px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.social-links {
  display: flex;
  gap: 15px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

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

.copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
}

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

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 992px) {
  h1 {
    font-size: 2.8rem;
  }

  h2 {
    font-size: 2.2rem;
  }

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

  .contact-container {
    flex-direction: column;
  }

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

  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 0;
  }

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

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

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 80%;
    height: calc(100vh - 70px);
    background-color: var(--bg-white);
    flex-direction: column;
    align-items: center;
    padding-top: 50px;
    transition: var(--transition);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
  }

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

  .nav-menu li {
    margin: 15px 0;
  }

  .hamburger {
    display: block;
  }

  .hero-bg {
    width: 100%;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 80%);
  }

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

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

  .footer-content {
    flex-direction: column;
    gap: 30px;
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 2.2rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  section {
    padding: 70px 0;
  }

  .projects-grid,
  .blog-grid,
  .youtube-container {
    grid-template-columns: 1fr;
  }
}