* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Poppins', sans-serif;
  background: #0E0E10;
  color: #FFFFFF;
  scroll-behavior: smooth;
}
.container {
  max-width: 1100px;
  margin: auto;
  padding: 40px 20px;
}
h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 20px;
}
a {
  color: #00FFFF;
  text-decoration: none;
}
ul {
  list-style: none;
}
header {
  background: #121212;
  padding: 15px 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 999;
}
.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #00FFFF;
}
nav {
  float: right;
}
nav ul {
  display: flex;
  gap: 20px;
}
nav a:hover {
  background: rgba(0, 255, 255, 0.1);
  border-radius: 5px;
  padding: 5px 10px;
}
#theme-toggle {
  background: none;
  border: none;
  color: #00FFFF;
  font-size: 1.5rem;
  cursor: pointer;
  position: absolute;
  right: 30px;
  top: 25px;
}
.hero {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding-top: 80px;
  background: #0E0E10;
  text-align: center;
}
.profile-img {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 4px solid #00FFFF;
  object-fit: cover;
  margin-bottom: 20px;
}
.hero h2 {
  font-size: 2.5rem;
}
.hero span {
  color: #00FFFF;
}
.btn {
  display: inline-block;
  margin-top: 15px;
  padding: 10px 20px;
  background: transparent;
  color: #00FFFF;
  border: 2px solid #00FFFF;
  border-radius: 30px;
  transition: background 0.3s;
}
.btn:hover {
  background: rgba(0, 255, 255, 0.1);
}
.skills-grid, .project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-top: 20px;
}
.skill, .project {
  background: #1a1a1a;
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s ease;
}
.skill:hover, .project:hover {
  transform: scale(1.05);
}
.exp-block {
  background: #1a1a1a;
  margin-bottom: 20px;
  padding: 20px;
  border-radius: 12px;
}
footer {
  text-align: center;
  background: #121212;
  padding: 20px;
}

/* Light Theme */
body.light-theme {
  background: #FFFFFF;
  color: #111111;
}
body.light-theme header {
  background: #FFFFFF;
}
body.light-theme .logo {
  color: #005F5F;
}
body.light-theme .hero {
  background: #FAFAFA;
}
body.light-theme a, body.light-theme .btn {
  color: #005F5F;
  border-color: #005F5F;
}
body.light-theme .btn:hover, body.light-theme nav a:hover {
  background: rgba(0, 95, 95, 0.1);
}
body.light-theme .skill,
body.light-theme .project,
body.light-theme .exp-block,
body.light-theme footer {
  background: #FFFFFF;
  color: #111;
}