.hud {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 100;
}

.hud > * {
    pointer-events: auto;
}

.hud-top {
    position: absolute;
    top: 16px;
    left: 16px;
    right: 16px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 16px;
    align-items: start;
}

.hud-left,
.hud-right {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.hud-center {
    display: flex;
    justify-content: center;
}

.hud-bottom {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.cube-name-display {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 20px;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.currency-display {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.sparkle-icon {
    font-size: 18px;
}

.budget-display {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.budget-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
}

.budget-label {
    font-size: 14px;
}

.budget-progress {
    width: 80px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.budget-fill {
    height: 100%;
    background: var(--accent-color);
    transition: width 0.3s ease, background 0.3s ease;
}

.budget-fill.warning {
    background: var(--warning-color);
}

.budget-value {
    opacity: 0.7;
    font-size: 10px;
    min-width: 50px;
}

@media (max-width: 1200px) {
    .hud-top {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .hud-center {
        order: -1;
    }
}

.unfold-hint-banner {
    position: fixed;
    bottom: 50%;
    left: 50%;
    transform: translate(-50%, 50%);
    background: var(--panel-bg);
    border: 2px solid var(--accent-color);
    border-radius: 12px;
    padding: 16px 24px;
    font-size: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    z-index: 160;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: pulse 2s ease-in-out infinite;
}

.unfold-hint-banner strong {
    color: var(--accent-color);
    font-weight: 700;
}

@keyframes pulse {
    0%, 100% { 
        transform: translate(-50%, 50%) scale(1); 
        opacity: 1;
    }
    50% { 
        transform: translate(-50%, 50%) scale(1.05); 
        opacity: 0.9;
    }
}

body.ui-hidden .unfold-hint-banner {
    display: none !important;
}