body {
  background: linear-gradient(to bottom right, #f5faff, #ffffff);
  color: #2c3e50;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  margin: 0;
  padding: 0;
}

header {
  background-color: #007aff;
  color: white;
  padding: 1rem 1.5rem;
  text-align: center;
  font-size: 1.5rem;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

main {
  padding: 2rem 1rem;
  max-width: 800px;
  margin: auto;
}

.record {
  background-color: #ffffff;
  border: 1px solid #dfe6e9;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  transition: transform 0.2s ease;
}

.record:hover {
  transform: scale(1.01);
}

.button {
  display: inline-block;
  margin-top: 12px;
  padding: 12px 18px;
  border-radius: 8px;
  background: linear-gradient(135deg, #007aff, #409eff);
  color: white;
  text-decoration: none;
  font-weight: 500;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: background 0.3s ease;
}

.button:hover {
  background: linear-gradient(135deg, #0056b3, #2d8bff);
}

.status {
  font-weight: bold;
  margin-bottom: 10px;
  font-size: 1rem;
}

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  color: #888;
  margin-top: 3rem;
}

.icon {
  margin-right: 6px;
  font-weight: bold;
}

.date-input-container {
  text-align: center;
  margin: 1.5rem auto;
}

input[type="date"] {
  font-size: 1rem;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #ccc;
}

@media (max-width: 600px) {
  header {
    font-size: 1rem;
    padding: 0.6rem 1rem;
  }

  main {
    padding: 0.8rem 0.5rem;
  }

  .record {
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 8px;
  }

  .button {
    padding: 10px;
    font-size: 0.9rem;
    display: block;
    width: 100%;
    box-sizing: border-box;
    text-align: center;
    margin-top: 10px;
  }

  .status {
    font-size: 0.9rem;
  }

  .date-input-container {
    margin: 0.8rem auto;
  }

  input[type="date"] {
    font-size: 0.9rem;
    padding: 6px 10px;
    width: 100%;
    box-sizing: border-box;
  }

  footer {
    font-size: 0.75rem;
    padding: 0.6rem;
  }
}