* {
    box-sizing: border-box
}

body {
    margin: 0;
    background: #111;
    color: #fff;
    font-family: system-ui;
    display: flex;
    flex-direction: column;
    height: 100vh
}

header {
    padding: 12px;
    text-align: center;
    font-weight: 700
}

main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px
}

canvas {
    max-width: 100%;
    max-height: 100%;
    border-radius: 12px;
    background: #222;
    touch-action: none
}

.toolbar {
    display: flex;
    gap: 10px;
    padding: 12px calc(12px + env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom)) calc(12px + env(safe-area-inset-left));
    background: #1b1b1b
}

button {
    flex: 1;
    padding: 14px;
    border: 0;
    border-radius: 10px;
    background: #ffb400;
    color: #111;
    font-weight: 700
}

.credits {
    text-align: center;
    font-size: 14px;
    color: #888;
    padding: 10px;
    margin-bottom: env(safe-area-inset-bottom);
}

.credits strong {
    color: #bbb;
}