html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background: #bcd7ff;
    font-family: "Verdana", "Tahoma", sans-serif;
    overflow: hidden;
}

#game-container {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    touch-action: none;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
    box-sizing: border-box;
}

canvas {
    display: block;
    touch-action: none;
    user-select: none;
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    height: 100%;
}

.edumario-help {
    position: fixed;
    top: 12px;
    right: 12px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    font-family: "Verdana", "Tahoma", sans-serif;
}

.edumario-help__toggle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid #94a3b8;
    background: rgba(255, 255, 255, 0.9);
    color: #0f172a;
    font-size: 20px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(15, 23, 42, 0.15);
}

.edumario-help__panel {
    width: min(320px, 90vw);
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid #94a3b8;
    border-radius: 12px;
    padding: 12px 14px;
    color: #0f172a;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.edumario-help__title {
    margin: 0 0 6px;
    font-size: 14px;
}

.edumario-help__body {
    margin: 0;
    font-size: 12px;
    line-height: 1.35;
    white-space: pre-line;
}

@media (max-width: 768px) {
    #game-container {
        width: 100vw;
        height: 100dvh;
    }
}