body {
    background-color: #0b0c10;
    color: #c5c6c7;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.paint-container {
    background-color: #1f2833;
    border: 2px solid #45f3ff;
    box-shadow: 0 0 20px rgba(69, 243, 255, 0.3);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    max-width: 840px;
}

h1 {
    color: #66fcf1;
    margin-top: 0;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.toolbar {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.settings-bar {
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    background: #0b0c10;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #45f3ff;
}

.settings-bar label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #66fcf1;
}

.settings-bar input[type="range"] {
    width: 100px;
}

.settings-bar input[type="color"] {
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    background: none;
}

.tool-btn {
    background: #0b0c10;
    color: #45f3ff;
    border: 1px solid #45f3ff;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: 0.2s;
}

.tool-btn:hover, .tool-btn.active {
    background: #45f3ff;
    color: #0b0c10;
}

.action-btn {
    border-color: #ff3366;
    color: #ff3366;
}

.action-btn:hover {
    background: #ff3366;
    color: #fff;
}

canvas {
    background-color: #ffffff;
    border-radius: 8px;
    cursor: crosshair;
    display: block;
    margin: 0 auto;
}