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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  background-color: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  color: #1a1a1a;
}

article {
  max-width: 400px;
  width: 100%;
  background: #ffffff;
  border-radius: 20px;
  padding: 40px 32px;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid #f0f0f0;
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

figure {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

figure img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #f5f5f5;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

figure img:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

header {
  text-align: center;
  margin-bottom: 12px;
}

header h2 {
  font-size: 28px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 8px;
}

article > p:first-of-type {
  text-align: center;
  color: #666666;
  line-height: 1.6;
  margin-bottom: 20px;
  font-size: 15px;
}

article > p:nth-of-type(2) {
  text-align: center;
  padding: 12px 20px;
  background: #f8f8f8;
  border-radius: 10px;
  margin-bottom: 24px;
  font-size: 14px;
  color: #666666;
  border: 1px solid #f0f0f0;
}

#currentTime {
  font-weight: 600;
  color: #1a1a1a;
  font-family: 'Courier New', monospace;
}

nav {
  margin-bottom: 32px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

nav li {
  flex: 1;
  min-width: 120px;
}

nav a {
  display: block;
  padding: 12px 20px;
  background: #1a1a1a;
  color: #ffffff;
  text-decoration: none;
  border-radius: 10px;
  text-align: center;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s ease;
  border: 2px solid #1a1a1a;
}

nav a:hover {
  background: #ffffff;
  color: #1a1a1a;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

section {
  margin-bottom: 24px;
}

section:last-child {
  margin-bottom: 0;
}

section h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid #f5f5f5;
}

section ul {
  list-style: none;
}

section ul li {
  padding: 8px 0;
  color: #666666;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

section ul li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: #1a1a1a;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Responsive Design */
@media (max-width: 480px) {
  article {
    padding: 32px 24px;
  }

  header h2 {
    font-size: 24px;
  }

  figure img {
    width: 100px;
    height: 100px;
  }

  nav li {
    flex: 1 1 100%;
  }
}