body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    min-height: 100vh;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
    padding: 20px;
}

.widget-container {
    width: 100%;
    max-width: 600px;
    padding: 30px;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.visualization-container {
    position: relative;
    width: 100%;
    height: 300px;
    margin: 20px auto;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #fafafa;
    border-radius: 8px;
    border: 1px solid #eee;
}

.arrow-svg {
    width: 300px;
    height: 300px;
    overflow: visible;
}

.arrow-head {
    fill: none;
    stroke: #007aff;
    stroke-width: 12;
    stroke-linecap: round;
    stroke-linejoin: round;
    filter: drop-shadow(0 2px 4px rgba(0, 122, 255, 0.3));
    transition: transform 0.1s linear;
}

.arrow-stem {
    fill: none;
    stroke: #007aff;
    stroke-width: 12;
    stroke-linecap: round;
    transition: d 0.1s linear;
    filter: drop-shadow(0 2px 4px rgba(0, 122, 255, 0.3));
    transform: rotate(-40deg);
}

.controls-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin: 30px 0 20px;
    text-align: left;
}

.control-group {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
}

.control-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #666;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.control-group input[type="number"] {
    width: 100%;
    padding: 10px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.control-group input[type="number"]:focus {
    outline: none;
    border-color: #007aff;
}

.slider-container {
    width: 100%;
    margin-top: 30px;
    position: relative;
    padding: 0 10px;
    box-sizing: border-box;
}

input[type=range] {
    width: 100%;
    cursor: pointer;
    height: 8px;
    border-radius: 5px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    background: #e0e0e0;
    transition: background 0.3s ease;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #007aff;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 122, 255, 0.4);
    transition: transform 0.2s ease;
    margin-top: -8px;
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.stats {
    display: flex;
    justify-content: space-around;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 24px;
    font-weight: bold;
    color: #007aff;
    transition: all 0.3s ease;
}

.stat-label {
    font-size: 12px;
    color: #888;
    margin-top: 5px;
    text-transform: uppercase;
}

.percentage-display {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 40px;
    font-weight: 800;
    color: rgba(0, 0, 0, 0.1);
    pointer-events: none;
    z-index: 0;
}