:root {
  --color-text: #f3f4f6;
  --color-text-light: #9ca3af;
  --color-background: #111827;
  --color-background-alt: #1f2937;
  --color-border: #374151;
  --color-primary: #14b8a6;
  --color-primary-light: #2dd4bf;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-background);
  box-shadow: var(--shadow);
  z-index: 100;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.nav-menu {
  position: fixed;
  top: 4rem;
  right: -100%;
  width: 250px;
  height: 100vh;
  background-color: var(--color-background-alt);
  padding: 2rem;
  transition: right 0.3s ease;
  box-shadow: var(--shadow);
}

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

.nav-list {
  list-style: none;
}

.nav-link {
  display: block;
  padding: 1rem 0;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

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

.nav-toggle {
  display: block;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  position: relative;
  width: 30px;
  height: 20px;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  height: 2px;
  width: 100%;
  background-color: var(--color-text);
  transition: all 0.3s ease;
}

.hamburger {
  top: 50%;
  transform: translateY(-50%);
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  bottom: -8px;
}

.nav-toggle.active .hamburger {
  background-color: transparent;
}

.nav-toggle.active .hamburger::before {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .hamburger::after {
  transform: rotate(-45deg) translate(5px, -5px);
}

.hero {
  padding: 8rem 0 4rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

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

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero h2 {
  font-size: 1.5rem;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.accent {
  color: var(--color-primary);
}

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

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 0.375rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s;
}

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

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

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

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

.avatar {
  width: 300px;
  height: auto;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 2rem auto 0;
  border: 6px solid var(--color-primary);
  
}

.avatar:hover{
   border: 6px solid var(--color-primary-light);
}

section {
  padding: 5rem 0;
}

.section-title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 3rem;
}

.skills-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.skill-filter {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.375rem;
  background-color: var(--color-background-alt);
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.3s;
}

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

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background-color: var(--color-background-alt);
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
}

.skill-level {
  height: 0.5rem;
  background-color: var(--color-border);
  border-radius: 0.25rem;
  margin-top: 0.5rem;
}

.skill-level-fill {
  height: 100%;
  background-color: var(--color-primary);
  border-radius: 0.25rem;
  transition: width 0.3s;
}

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

.project-card {
  background-color: var(--color-background-alt);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s;
}

.project-card:hover {
  transform: translateY(-0.25rem);
}

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

.project-content {
  padding: 1.5rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.project-tags span {
  background-color: var(--color-background);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.875rem;
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 2px;
  background-color: var(--color-primary);
}

.timeline-item {
  margin-bottom: 2rem;
  padding-left: 2rem;
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -0.5rem;
  top: 0;
  width: 1rem;
  height: 1rem;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.timeline-date {
  color: var(--color-primary);
  font-weight: 500;
}

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

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  background-color: var(--color-background);
  color: var(--color-text);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-icon {
  font-size: 1.5rem;
}

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

.social-links a {
  color: var(--color-primary);
  text-decoration: none;
}

.footer {
  background-color: var(--color-background-alt);
  padding: 2rem 0;
  text-align: center;
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 4rem;
    right: -100%;
    width: 80%;
    height: 100vh;
    background-color: var(--color-background);
    padding: 2rem;
    transition: right 0.3s;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: center;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    text-align: center;
  }

  .hero-content {
    margin: 0 auto;
  }

  .avatar {
  width: 200px;
  height: 200px;
  }

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