.in-game-panel {
    position: absolute;
    background-color: rgba(0, 20, 20, 0.75); /* Dark, transparent cyan */
    border: 1px solid #00FFFF; /* Player color */
    padding: 15px;
    border-radius: 0; /* Sharp corners */
    color: #00FFFF; /* Player color */
    font-size: 1.2em;
    text-align: center;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
    z-index: 100;
    display: none;
}

.in-game-panel.active {
    display: block;
}

#planet-list-panel {
    top: 50%;
    transform: translateY(-50%);
    bottom: auto;
    right: 20px;
    left: auto;
    width: 240px;
    background: rgba(0, 15, 15, 0.85); /* Slightly darker */
    box-sizing: border-box;
    text-align: left;
    max-height: 80vh;
    overflow-y: auto;
    height: auto;
    padding: 10px 18px 10px 14px;
    border: 1px solid #00FFFF;
    z-index: 120;
}

#planet-list-panel h2 {
    color: #00FFFF;
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.3em;
    border-bottom: 1px solid rgba(0, 255, 255, 0.3);
    padding-bottom: 5px;
    text-transform: uppercase;
}

#planet-list {
    list-style: none;
    padding: 0;
    margin: 0;
    width: 100%;
}

#planet-list li {
    padding: 6px 5px;
    border-bottom: 1px solid rgba(0, 255, 255, 0.1);
    cursor: pointer;
    font-size: 0.95em;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

#planet-list li:hover {
    background-color: rgba(0, 255, 255, 0.15);
    color: #fff;
}

#planet-list li.active {
    background-color: rgba(0, 255, 255, 0.3);
    color: #fff;
    font-weight: bold;
}

#buildings-panel {
    position: fixed;
    width: 300px;
    right: var(--space-lg);
    bottom: calc(var(--space-lg) + 120px + 28px + 2px + 34px); 
    z-index: var(--z-panel);
    text-align: left;
    cursor: default;
    padding: 15px;
    box-sizing: border-box;
    
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.2s ease-out, transform 0.2s ease-out;
    pointer-events: none;
    display: block !important;
}

#buildings-panel.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

#buildings-panel h2 {
    text-align: center;
    font-size: 1.5em;
    margin-top: 0;
    margin-bottom: 15px;
    padding-bottom: 5px;
    border-bottom: 1px solid rgba(0, 255, 255, 0.3);
}