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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #333;
  background: #fafafa;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: 80px;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(250, 250, 250, 0.9);
  backdrop-filter: blur(10px);
  z-index: 100;
  padding: 20px 0;
}

.header-content {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: #666;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: #000;
}

.time-display {
  font-size: 14px;
  font-weight: 500;
  color: #666;
  font-variant-numeric: tabular-nums;
}

.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Main Content */
.content {
  padding: 40px 0;
}

.profile-image {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 600;
  color: white;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

h1 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 24px;
  color: #000;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.2s forwards;
}

.bio {
  font-size: 16px;
  color: #666;
  line-height: 1.7;
  margin-bottom: 32px;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.4s forwards;
}

.bio p {
  margin-bottom: 20px;
}

.bio p:last-child {
  margin-bottom: 0;
}

.bio a {
  color: #000;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.2s ease;
}

.bio a:hover {
  opacity: 0.7;
}

.newsletter {
  background: white;
  border-radius: 12px;
  padding: 24px;
  margin: 32px 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.05);
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.6s forwards;
}

.newsletter h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #000;
}

.newsletter p {
  font-size: 14px;
  color: #666;
  margin-bottom: 16px;
}

.newsletter-form {
  display: flex;
  gap: 12px;
}

.newsletter input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease;
}

.newsletter input:focus {
  border-color: #000;
}

.newsletter button {
  padding: 10px 16px;
  background: #000;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.newsletter button:hover {
  background: #333;
  transform: translateY(-1px);
}

.social-links {
  display: flex;
  gap: 24px;
  margin-top: 32px;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.6s forwards;
}

.social-links a {
  color: #666;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}

.social-links a:hover {
  color: #000;
}

/* Footer */
footer {
  padding: 24px;
  text-align: center;
  color: #999;
  font-size: 12px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  margin-top: auto;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .header-content {
    padding: 0 20px;
  }

  .nav-links {
    gap: 20px;
  }

  .nav-links a {
    font-size: 13px;
  }

  .time-display {
    font-size: 13px;
  }

  .content {
    padding: 20px 0;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .social-links {
    flex-wrap: wrap;
    gap: 16px;
  }
}

/* Hover effects for interactive elements */
.profile-image:hover {
  transform: scale(1.05);
  transition: transform 0.2s ease;
}

.newsletter {
  transition: all 0.2s ease;
}

.newsletter:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}