:root {
  --primary-color: #3498db;
  --secondary-color: #2c3e50;
  --text-color: #333;
  --light-text: #f8f9fa;
  --bg-color: #efefef;
  --card-bg: #f8f9fa;
  --dark-bg: #1a1a2e;
  --dark-card: #16213e;
  --transition: all 0.3s ease;
}

.dark-mode {
  --primary-color: #4fc3f7;
  --secondary-color: #bb86fc;
  --text-color: #f8f9fa;
  --light-text: #f8f9fa;
  --bg-color: #121212;
  --card-bg: #1e1e1e;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  /* font-size: 12px; */
}

body {
  font-family: "Poppins", sans-serif;
  color: var(--text-color);
  background-color: var(--bg-color);
  transition: var(--transition);
  line-height: 1.6;
}

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

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--bg-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

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

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

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover {
  color: var(--primary-color);
}

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

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

.hamburger {
  display: none;
  cursor: pointer;
  font-size: 24px;
  color: var(--text-color);
}

.theme-toggle {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-color);
  margin-left: 20px;
}

/* Hero Section */
#home {
  /* height: 100vh; */
  display: flex;
  /* align-items: center; */
  padding-top: 6rem;
}

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

.hero-text {
  flex: 1;
}

.hero-text h1 {
  font-size: 48px;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.hero-text h2 {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 20px;
  color: var(--text-color);
}

.hero-text p {
  margin-bottom: 30px;
  max-width: 600px;
}

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

.hero-image img {
  width: 350px;
  height: 350px;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid var(--primary-color);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  margin-left: 15px;
}

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

/* About Section */
section {
  padding: 3rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 36px;
  color: var(--primary-color);
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: "";
  position: absolute;
  width: 70px;
  height: 3px;
  background: var(--primary-color);
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
}

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

.about-text {
  flex: 1;
}

.about-text h3 {
  font-size: 24px;
  margin-bottom: 20px;
}

.about-text p {
  margin-bottom: 20px;
}

.skills {
  flex: 1;
}

.skill-item {
  margin-bottom: 25px;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

.skill-bar {
  height: 10px;
  background: #e0e0e0;
  border-radius: 5px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--primary-color);
  border-radius: 5px;
  transition: width 1s ease-in-out;
}

/* Projects Section */
.projects-filter {
  display: flex;
  justify-content: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: none;
  border: none;
  padding: 10px 20px;
  margin: 0 10px;
  cursor: pointer;
  color: var(--text-color);
  font-weight: 500;
  transition: var(--transition);
  border-radius: 30px;
}

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

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

.project-card {
  background: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.project-img {
  height: 200px;
  overflow: hidden;
}

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

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

.project-info {
  padding: 20px;
}

.project-info h3 {
  margin-bottom: 10px;
  color: var(--primary-color);
}

.project-info p {
  margin-bottom: 15px;
  font-size: 14px;
}

.project-links a {
  display: inline-block;
  margin-right: 15px;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
}

.project-links a i {
  margin-right: 5px;
}

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

.service-card {
  background: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.service-icon {
  font-size: 50px;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.service-card h3 {
  margin-bottom: 15px;
}

/* Resume Section */
.resume-container {
  display: flex;
  gap: 30px;
}

.resume-column {
  flex: 1;
}

.resume-item {
  background: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  margin-bottom: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.resume-item h3 {
  color: var(--primary-color);
  margin-bottom: 15px;
}

.resume-item h4 {
  margin-bottom: 10px;
}

.resume-item .date {
  display: inline-block;
  background: rgba(52, 152, 219, 0.1);
  color: var(--primary-color);
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 14px;
  margin-bottom: 15px;
}

.resume-item p {
  margin-bottom: 0;
}

.download-btn {
  text-align: center;
  margin-top: 50px;
}

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

.contact-info {
  flex: 1;
}

.contact-info h3 {
  margin-bottom: 20px;
  color: var(--primary-color);
}

.contact-details {
  margin-bottom: 30px;
}

.contact-item {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: rgba(52, 152, 219, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  color: var(--primary-color);
  font-size: 20px;
}

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

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: rgba(52, 152, 219, 0.1);
  border-radius: 50%;
  color: var(--primary-color);
  transition: var(--transition);
}

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

.contact-form {
  flex: 1;
  background: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-family: inherit;
  background: var(--bg-color);
  color: var(--text-color);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

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

.error {
  color: #e74c3c;
  font-size: 14px;
  margin-top: 5px;
  display: none;
}

/* Footer */
footer {
  background: var(--secondary-color);
  color: white;
  text-align: center;
  padding: 30px 0;
}

.footer-content p {
  margin-bottom: 20px;
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

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

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

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

.preloader.fade-out {
  opacity: 0;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 5px solid rgba(52, 152, 219, 0.2);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s linear infinite;
}

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

/* Responsive Styles */
@media (max-width: 992px) {
  .nav-links {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--bg-color);
    flex-direction: column;
    align-items: center;
    padding-top: 40px;
    transition: var(--transition);
  }

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

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

  .hamburger {
    display: block;
  }
  .hero-content {
    flex-direction: column;
    text-align: center;
  }

  .about-content,
  .contact-container {
    flex-direction: column;
  }

  .hero-text,
  .hero-image,
  .about-text,
  .skills,
  .contact-info,
  .contact-form {
    flex: none;
    width: 100%;
  }

  .hero-image {
    margin-top: 5px;
  }

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

@media (max-width: 768px) {
  

  .hero-text h1 {
    font-size: 36px;
  }

  .hero-text h2 {
    font-size: 20px;
  }

  .section-title h2 {
    font-size: 30px;
  }
}

@media (max-width: 576px) {
  .hero-text h1 {
    font-size: 30px;
  }

  .hero-btns {
    display: flex;
    flex-direction: column;
  }

  .btn-outline {
    margin-left: 0;
    margin-top: 15px;
  }

  .filter-btn {
    margin: 5px;
    padding: 8px 15px;
  }
}