body {
  background-color: #8cc0c2;
  color: #f0f0f0;
  font-family: 'Segoe UI', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 20px;
  box-sizing: border-box;
}

.container {
  background-color: #e3e1e1;
  padding: 30px 25px;
  border-radius: 15px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.6);
  width: 100%;
  max-width: 400px;
  box-sizing: border-box;
}

h1 {
  text-align: center;
  margin-bottom: 20px;
  color: #182a2d;
}

.progress-wrapper {
  text-align: center;
  margin: 20px 0;
}

.progress-circle {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto;
}

.progress-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.2rem;
  font-weight: bold;
  color: #00d1ff;
}

#statusText {
  margin-top: 10px;
  font-size: 0.9rem;
  color: #aaa;
}

.input-section {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

input[type="text"] {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  box-sizing: border-box;
}

button {
  padding: 12px 18px;
  background-color: #00d1ff;
  border: none;
  color: white;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background-color: #00a8cc;
}

ul {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}

li {
  background-color: #292929;
  margin-bottom: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
  cursor: pointer;
}

li.completed {
  text-decoration: line-through;
  color: #888;
  background-color: #1a1a1a;
}