/* ========================================
   CSS Variables & Reset
======================================== */
:root {
  --primary-color: #00D9FF;
  --secondary-color: #6C63FF;
  --accent-color: #FF6B6B;
  --dark-bg: #0A192F;
  --darker-bg: #020C1B;
  --light-bg: #112240;
  --text-primary: #CCD6F6;
  --text-secondary: #8892B0;
  --text-highlight: #E6F1FF;
  --success-color: #64FFDA;
  --transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
  --shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ========================================
   Navigation
======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(10, 25, 47, 0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 0;
  box-shadow: 0 10px 30px -10px rgba(2, 12, 27, 0.7);
  transition: var(--transition);
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: 0 10px 30px -10px rgba(2, 12, 27, 0.9);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--success-color);
  font-family: var(--font-mono);
  cursor: pointer;
  transition: var(--transition);
}

.nav-logo:hover {
  color: var(--primary-color);
  transform: translateY(-2px);
}

.nav-menu {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-mono);
  position: relative;
  padding: 0.5rem 0;
  transition: var(--transition);
}

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

.nav-link:hover {
  color: var(--success-color);
}

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

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--success-color);
  transition: var(--transition);
  border-radius: 3px;
}

/* ========================================
   Hero Section
======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  position: relative;
  background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 50%, var(--light-bg) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(108, 99, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 217, 255, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-content {
  animation: fadeInUp 0.8s ease-out;
}

.greeting {
  color: var(--success-color);
  font-family: var(--font-mono);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  color: var(--text-highlight);
  margin-bottom: 0.5rem;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-description {
  max-width: 600px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2rem;
  font-size: 1rem;
  font-family: var(--font-mono);
  border-radius: 5px;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background-color: transparent;
  color: var(--success-color);
  border-color: var(--success-color);
}

.btn-primary:hover {
  background-color: rgba(100, 255, 218, 0.1);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px -10px var(--success-color);
}

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

.btn-secondary:hover {
  background-color: rgba(0, 217, 255, 0.1);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px -10px var(--primary-color);
}

.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;
}

.mouse {
  width: 24px;
  height: 40px;
  border: 2px solid var(--success-color);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.wheel {
  width: 4px;
  height: 8px;
  background-color: var(--success-color);
  border-radius: 2px;
  animation: scroll 1.5s ease-in-out infinite;
}

.arrow-down {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.arrow-down span {
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--success-color);
  border-bottom: 2px solid var(--success-color);
  transform: rotate(45deg);
  animation: arrowMove 1.5s ease-in-out infinite;
}

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

/* ========================================
   Section Styling
======================================== */
section {
  padding: 6rem 0;
  position: relative;
}

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

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text-highlight);
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.title-underline {
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, var(--success-color), var(--primary-color));
  margin: 0 auto;
  border-radius: 2px;
}

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

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-image {
  position: relative;
}

.image-wrapper {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  transition: var(--transition);
}

.image-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(100, 255, 218, 0.2), rgba(108, 99, 255, 0.2));
  z-index: 1;
  transition: var(--transition);
}

.image-wrapper:hover::before {
  opacity: 0;
}

.image-wrapper:hover {
  transform: translateY(-10px);
}

.image-wrapper img {
  border-radius: 10px;
  filter: grayscale(30%);
  transition: var(--transition);
}

.image-wrapper:hover img {
  filter: grayscale(0%);
}

.about-text h3 {
  font-size: 1.8rem;
  color: var(--text-highlight);
  margin-bottom: 1.5rem;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.8;
  font-size: 1.05rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
  background-color: var(--light-bg);
  border-radius: 10px;
  transition: var(--transition);
  border: 1px solid transparent;
}

.stat-item:hover {
  border-color: var(--success-color);
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.stat-item h4 {
  font-size: 2.5rem;
  color: var(--success-color);
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.stat-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

/* ========================================
   Experience Section
======================================== */
.experience {
  background: linear-gradient(180deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--success-color), var(--primary-color));
}

.timeline-item {
  position: relative;
  padding-left: 3rem;
  padding-bottom: 3rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -6px;
  top: 0;
  width: 14px;
  height: 14px;
  background-color: var(--success-color);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--dark-bg), 0 0 0 6px var(--success-color);
}

.timeline-content {
  background-color: var(--light-bg);
  padding: 2rem;
  border-radius: 10px;
  border: 1px solid rgba(100, 255, 218, 0.1);
  transition: var(--transition);
}

.timeline-content:hover {
  transform: translateX(10px);
  border-color: var(--success-color);
  box-shadow: var(--shadow);
}

.timeline-date {
  color: var(--success-color);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.timeline-content h3 {
  font-size: 1.5rem;
  color: var(--text-highlight);
  margin-bottom: 0.5rem;
}

.timeline-content h4 {
  color: var(--primary-color);
  font-size: 1.1rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

.timeline-content p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.achievement-list {
  list-style: none;
  padding: 0;
}

.achievement-list li {
  color: var(--text-secondary);
  padding-left: 1.5rem;
  margin-bottom: 0.8rem;
  position: relative;
}

.achievement-list li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-size: 1.2rem;
}

/* ========================================
   Skills Section
======================================== */
.skills {
  background-color: var(--darker-bg);
}

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

.skill-category {
  background-color: var(--light-bg);
  padding: 2rem;
  border-radius: 10px;
  border: 1px solid rgba(100, 255, 218, 0.1);
  transition: var(--transition);
}

.skill-category:hover {
  transform: translateY(-10px);
  border-color: var(--success-color);
  box-shadow: var(--shadow);
}

.category-icon {
  font-size: 2.5rem;
  color: var(--success-color);
  margin-bottom: 1.5rem;
}

.skill-category h3 {
  font-size: 1.5rem;
  color: var(--text-highlight);
  margin-bottom: 1.5rem;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.tech-badge {
  background-color: var(--dark-bg);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 5px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  border: 1px solid rgba(100, 255, 218, 0.2);
  transition: var(--transition);
}

.tech-badge:hover {
  background-color: rgba(100, 255, 218, 0.1);
  border-color: var(--success-color);
  color: var(--success-color);
  transform: translateY(-2px);
}

/* ========================================
   Projects Section
======================================== */
.projects {
  background: linear-gradient(180deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
}

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

.project-card {
  background-color: var(--light-bg);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(100, 255, 218, 0.1);
  transition: var(--transition);
}

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

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

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(100, 255, 218, 0.9), rgba(108, 99, 255, 0.9));
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

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

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

.project-links {
  display: flex;
  gap: 1.5rem;
}

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

.project-link:hover {
  background-color: var(--text-highlight);
  color: var(--dark-bg);
  transform: translateY(-5px);
}

.project-info {
  padding: 2rem;
}

.project-info h3 {
  font-size: 1.5rem;
  color: var(--text-highlight);
  margin-bottom: 1rem;
}

.project-info p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.project-tech span {
  background-color: var(--dark-bg);
  color: var(--success-color);
  padding: 0.4rem 0.8rem;
  border-radius: 5px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

/* ========================================
   Contact Section
======================================== */
.contact {
  background-color: var(--darker-bg);
  padding: 6rem 0 4rem;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-text h3 {
  font-size: 2rem;
  color: var(--text-highlight);
  margin-bottom: 1.5rem;
}

.contact-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
}

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

.contact-item {
  display: flex;
  align-items: start;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background-color: var(--light-bg);
  border-radius: 10px;
  transition: var(--transition);
  border: 1px solid transparent;
}

.contact-item:hover {
  border-color: var(--success-color);
  transform: translateX(10px);
}

.contact-item i {
  font-size: 1.5rem;
  color: var(--success-color);
  margin-top: 0.2rem;
}

.contact-item h4 {
  color: var(--text-highlight);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.contact-item p,
.contact-item a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-item a:hover {
  color: var(--success-color);
}

.social-links {
  display: flex;
  gap: 1.5rem;
  margin-top: 2rem;
}

.social-links a {
  width: 50px;
  height: 50px;
  background-color: var(--light-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--success-color);
  font-size: 1.5rem;
  transition: var(--transition);
  border: 1px solid transparent;
}

.social-links a:hover {
  background-color: rgba(100, 255, 218, 0.1);
  border-color: var(--success-color);
  transform: translateY(-5px);
}

.contact-form-wrapper {
  background-color: var(--light-bg);
  padding: 2.5rem;
  border-radius: 10px;
  border: 1px solid rgba(100, 255, 218, 0.1);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group input,
.form-group textarea {
  padding: 1rem;
  background-color: var(--dark-bg);
  border: 1px solid rgba(100, 255, 218, 0.2);
  border-radius: 5px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--success-color);
  box-shadow: 0 0 0 3px rgba(100, 255, 218, 0.1);
}

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

.contact-form .btn-primary {
  width: 100%;
  cursor: pointer;
  border: 2px solid var(--success-color);
  background-color: transparent;
  color: var(--success-color);
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 1rem;
}

.contact-form .btn-primary:hover {
  background-color: rgba(100, 255, 218, 0.1);
}

/* ========================================
   Footer
======================================== */
.footer {
  background-color: var(--darker-bg);
  padding: 2rem 0;
  border-top: 1px solid rgba(100, 255, 218, 0.1);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

.back-to-top {
  width: 40px;
  height: 40px;
  background-color: var(--light-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--success-color);
  transition: var(--transition);
  border: 1px solid transparent;
}

.back-to-top:hover {
  background-color: rgba(100, 255, 218, 0.1);
  border-color: var(--success-color);
  transform: translateY(-5px);
}

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

@keyframes scroll {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(10px);
  }
}

@keyframes arrowMove {
  0%, 100% {
    transform: translateY(0) rotate(45deg);
  }
  50% {
    transform: translateY(5px) rotate(45deg);
  }
}

/* ========================================
   Responsive Design
======================================== */
@media (max-width: 968px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: var(--light-bg);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    padding: 2rem 0;
    gap: 1rem;
  }

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

  .hamburger {
    display: flex;
  }

  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

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

  .about-stats {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 1rem;
  }

  section {
    padding: 4rem 0;
  }

  .hero {
    padding: 6rem 1rem 3rem;
  }

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

  .hero-subtitle {
    font-size: 1.8rem;
  }

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

  .timeline::before {
    left: 8px;
  }

  .timeline-item {
    padding-left: 2.5rem;
  }

  .timeline-dot {
    left: 2px;
  }

  .contact-form-wrapper {
    padding: 1.5rem;
  }

  .project-card {
    margin: 0 1rem;
  }
}

/* Smooth scroll for all anchor links */
html {
  scroll-padding-top: 80px;
}