:root {
  --primary: #0fd850;
  --secondary: #43cea2;
  --accent: #ff004f;
  --cv-btn: #6a11cb; /* New color for CV button */
  --cv-btn-hover: #2575fc; /* Hover color for CV button */
  --dark: #0a0a1a;
  --darker: #060612;
  --light: #f0f0f0;
  --gray: #ababab;
  --card-bg: rgba(35, 35, 79, 0.6);
  --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 100%);
  color: var(--light);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 10% 20%, rgba(15, 216, 80, 0.1) 0%, rgba(35, 35, 79, 0.05) 30%, transparent 70%);
  z-index: -2;
}

#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 100px 0;
  position: relative;
}

h1, h2, h3, h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 20px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  color: #fff;
  border-radius: 30px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(15, 216, 80, 0.3);
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 25px rgba(15, 216, 80, 0.5);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  box-shadow: none;
}

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

/* New CV button styles */
.btn-cv {
  background: linear-gradient(90deg, var(--cv-btn), var(--cv-btn-hover));
  color: #fff;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.btn-cv:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 25px rgba(106, 17, 203, 0.5);
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 10, 26, 0.95);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  padding: 20px 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

header.scrolled {
  padding: 15px 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
}

.logo span {
  color: var(--primary);
}

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

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

.nav-links a {
  color: var(--light);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding: 5px 0;
  transition: var(--transition);
}

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

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

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--light);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 150px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}

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

.hero-text h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  line-height: 1.1;
}

.hero-text h1 span {
  color: var(--primary);
}

.hero-text h2 {
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--gray);
  margin-bottom: 30px;
}

.hero-text p {
  margin-bottom: 40px;
  font-size: 1.1rem;
}

.hero-btns {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-img {
  flex: 1;
  max-width: 400px;
  position: relative;
}

.hero-img::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 100%;
  height: 100%;
  border: 3px solid var(--primary);
  border-radius: 50%;
  z-index: -1;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.7;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.hero-img img {
  width: 100%;
  border-radius: 50%;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

.hero-img:hover img {
  transform: scale(1.02);
}

.location {
  display: flex;
  align-items: center;
  margin-top: 20px;
  font-size: 1.1rem;
  color: var(--gray);
}

.location i {
  margin-right: 10px;
  color: var(--primary);
}

/* About Section */
#about {
  background: rgba(6, 6, 18, 0.7);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

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

.about-img {
  flex: 1;
  max-width: 400px;
}

.about-img img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.about-text {
  flex: 1;
}

.tab-titles {
  display: flex;
  margin: 30px 0;
  gap: 20px;
}

.tab-links {
  padding: 10px 20px;
  background: transparent;
  border: 2px solid var(--card-bg);
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.tab-links.active-link {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--dark);
}

.tab-contents {
  display: none;
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.tab-contents.active-tab {
  display: block;
}

.skills {
  margin-top: 20px;
}

.skill {
  margin-bottom: 25px;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.skill-bar {
  height: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  border-radius: 5px;
  position: relative;
  transition: width 1.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.skill-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

/* Services Section */
#services {
  background: rgba(10, 10, 26, 0.7);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.service-card {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0;
  background: linear-gradient(45deg, var(--primary), var(--secondary));
  transition: var(--transition);
  z-index: -1;
  opacity: 0;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-card:hover::before {
  height: 100%;
  opacity: 0.1;
}

.service-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 20px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
  color: var(--secondary);
}

.service-card h3 {
  margin-bottom: 15px;
  font-size: 1.5rem;
}

/* Portfolio Section */
#portfolio {
  background: rgba(6, 6, 18, 0.7);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  background: var(--card-bg);
  border: none;
  border-radius: 30px;
  color: var(--light);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

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

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

.portfolio-item {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  height: 300px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.portfolio-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.portfolio-item:hover .portfolio-img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(10, 10, 26, 0.9), transparent);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  opacity: 0;
  transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay h3 {
  margin-bottom: 10px;
  font-size: 1.5rem;
}

.portfolio-overlay p {
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.portfolio-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 15px;
}

.portfolio-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  font-size: 0.95rem;
}

.portfolio-link.source-link {
  color: var(--light);
  background: rgba(255, 255, 255, 0.1);
  padding: 8px 15px;
  border-radius: 30px;
  width: fit-content;
}

.portfolio-link.source-link:hover {
  background: rgba(255, 255, 255, 0.2);
}

.portfolio-link:hover {
  text-decoration: underline;
}

.portfolio-link i {
  font-size: 0.8rem;
}

/* Contact Section */
#contact {
  background: rgba(10, 10, 26, 0.7);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.contact-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 50px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
}

.contact-icon {
  font-size: 1.5rem;
  color: var(--primary);
  min-width: 40px;
}

.contact-details h4 {
  margin-bottom: 5px;
  font-size: 1.2rem;
}

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

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

.social-link:hover {
  background: var(--primary);
  color: var(--dark);
  transform: translateY(-5px);
}

.contact-form {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 40px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 25px;
}

.form-control {
  width: 100%;
  padding: 15px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: var(--light);
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 216, 80, 0.2);
}

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

.submit-btn {
  width: 100%;
  padding: 15px;
  font-size: 1rem;
  letter-spacing: 1px;
  position: relative;
}

.submit-btn .spinner {
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255,255,255,.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.form-message {
  margin-top: 20px;
  padding: 10px;
  border-radius: 5px;
  text-align: center;
  display: none;
}

.form-message.success {
  background: rgba(15, 216, 80, 0.2);
  border: 1px solid var(--primary);
  display: block;
}

.form-message.error {
  background: rgba(255, 0, 79, 0.2);
  border: 1px solid var(--accent);
  display: block;
}

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

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

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

.copyright .heart {
  color: var(--accent);
}

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

.floating {
  animation: float 4s ease-in-out infinite;
}

/* Responsive Design */
@media (max-width: 992px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-text {
    max-width: 100%;
  }
  
  .hero-btns {
    justify-content: center;
  }
  
  .hero-img {
    max-width: 300px;
  }
  
  .about-content {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 2rem;
  }
  
  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    flex-direction: column;
    background: rgba(10, 10, 26, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    transform: translateY(-150%);
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  }
  
  .nav-links.active {
    transform: translateY(0);
  }
  
  .nav-links li {
    margin: 15px 0;
    text-align: center;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .hero-text h1 {
    font-size: 2.5rem;
  }
  
  .hero-text h2 {
    font-size: 1.5rem;
  }
  
  .hero-btns {
    flex-direction: column;
    gap: 15px;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .hero-text h1 {
    font-size: 2rem;
  }
  
  .hero-text h2 {
    font-size: 1.2rem;
  }
  
  .tab-titles {
    flex-direction: column;
    gap: 10px;
  }
  
  .portfolio-links {
    flex-direction: column;
    align-items: flex-start;
  }
}