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

body {
  font-family: 'Space Grotesk', sans-serif;
  background: url('bg-dark.jpg') no-repeat center center fixed;
  background-size: cover;
  color: #fff;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: background 0.6s ease-in-out, color 0.6s ease-in-out;
}

body.light-mode {
  background: url('bg-light.jpg') no-repeat center center fixed;
  background-size: cover;
  color: #000;
}

.container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 2rem;
  backdrop-filter: blur(10px);
}

.card {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 2rem;
  max-width: 400px;
  width: 100%;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: background 0.3s ease;
}

body.light-mode .card {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(0, 0, 0, 0.1);
}

.profile-img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #fff;
  margin-bottom: 1rem;
}

.name {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.tagline {
  font-size: 1rem;
  opacity: 0.8;
  margin-bottom: 1.5rem;
  min-height: 24px;
}

.theme-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
}

.theme-toggle button {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: #fff;
  cursor: pointer;
}

body.light-mode .theme-toggle button {
  color: #000;
}

.footer {
  padding: 1rem 2rem;
  text-align: center;
  backdrop-filter: blur(8px);
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  font-size: 1rem;
}

.social-links a {
  color: inherit;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.3s ease;
}

.social-links a:hover {
  color: #00d8ff;
}