* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #e0e5ec;
    font-family: 'Arial', sans-serif;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.progress-circle {
    position: relative;
    width: 150px;
    height: 150px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.circle-svg {
    transform: rotate(-90deg);
    /* Rotate to make progress start from top */
}

.background-circle {
    stroke: #e0e5ec;
}

.progress-bar {
    stroke: linear-gradient(90deg, #ff6b6b, #f7c964, #64f7c6, #648bf7);
    stroke-linecap: round;
    transition: stroke-dashoffset 0.5s ease;
}

.progress-text {
    position: absolute;
    font-size: 24px;
    font-weight: bold;
    color: #666;
}

input[type="range"] {
    margin-top: 20px;
    -webkit-appearance: none;
    width: 150px;
}

input[type="range"]::-webkit-slider-runnable-track {
    height: 8px;
    background-color: #ddd;
    border-radius: 5px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background-color: #888;
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
}

input[type="range"]:focus {
    outline: none;
}