body {
  font-family: Arial, sans-serif;
  background: #f4f8fb;
  margin: 0;
  padding: 20px;
}

.container {
  max-width: 500px;
  margin: auto;
}

h1 {
  text-align: center;
  color: #2b7a78;
}

.subtitle {
  text-align: center;
  color: #555;
  margin-bottom: 20px;
}

.card {
  background: #fff;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

label {
  display: block;
  margin-bottom: 5px;
}

input, button {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
}

button {
  background: #2b7a78;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background: #205f5c;
}

.stats {
  display: flex;
  justify-content: space-between;
  margin-bottom: 15px;
}

.stats div {
  text-align: center;
  flex: 1;
}

.stats h3 {
  margin: 0;
  color: #17252a;
}

ul {
  padding-left: 20px;
}

.hidden {
  display: none;
}