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

body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background: white;
    padding: 20px;
    border-radius: 15px;
    width: 90vw;
    max-width: 700px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    text-align: center;
}

.controls {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

button {
    padding: 8px 20px;
    background: #2f6df6;
    border: none;
    color: white;
    border-radius: 6px;
    cursor: pointer;
}

button:hover {
    opacity: 0.9;
}

svg {
    width: 100%;
    height: 50vh;
    border: 2px dashed #ccc;
    border-radius: 10px;
    background: white;
    cursor: crosshair;
}

.count {
    margin-top: 12px;
    font-size: 16px;
    color: #333;
}