body {
  margin: auto;
  padding: 30px;
  background: rgba(255,255,255,0.85);
  min-height: 100vh;
}

h1 {
  text-align: center;
  font-size: 3rem;
}

.name-box {
  margin: 20px 0;
}

.name-box input {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: 2px solid #ff9ccf;
  font-size: 1rem;
}

.buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.upload-btn,
#resetBtn {
  background: #ff69b4;
  color: white;
  border: none;
  padding: 14px 20px;
  border-radius: 15px;
  cursor: pointer;
  font-size: 1rem;
}

.section {
  margin-bottom: 40px;
}

.tracker-row {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.circle {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  border: 4px solid #444;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: 0.2s;
}

.circle.active {
  background: #7dff9b;
  transform: scale(1.08);
}