body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #fdf4ff;
  margin: 0;
  padding: 0;
  color: #333;
}

nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  background-color: #e9d5ff;
  padding: 1rem;
}

nav button, nav select {
  background-color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 1rem;
  cursor: pointer;
  font-weight: bold;
}

.page {
  padding: 20px;
}

.card {
  background: white;
  border-radius: 1rem;
  padding: 1rem;
  margin: 1rem auto;
  max-width: 500px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

button.track {
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  background-color: #d946ef;
  color: white;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
}

button.track:hover {
  background-color: #c026d3;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 5px;
  max-width: 500px;
  margin: 20px auto;
}

.day {
  text-align: center;
  padding: 10px;
  border-radius: 6px;
}

.done {
  background-color: #bbf7d0;
}

.partial {
  background-color: #fef08a;
}

.none {
  background-color: #fecaca;
}