.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding-bottom: var(--space-xxs);
    margin-bottom: var(--space-xxs);
    border-bottom: none;
}

.panel-header .planet-name {
    font-size: 0.7em;
    color: var(--color-text-primary);
    margin: 0;
}

.panel-header .planet-type {
    font-size: 0.6em;
    color: var(--color-text-primary);
    font-style: normal;
    margin-left: var(--space-xs);
}

.planet-stats {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-xs);
    padding: 0 var(--space-xxs);
}

.planet-stats-info {
    display: flex;
    flex-direction: column;
    gap: 0;
    text-align: right;
    padding-top: 0;
}

.planet-stats .stat-item {
    font-size: 0.6em;
    color: var(--color-text-secondary);
    display: inline-flex;
    gap: var(--space-xs);
}

.planet-stats .stat-item strong {
    font-size: 1em;
    color: var(--color-primary);
    text-transform: uppercase;
}

.building-list-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-xxxs);
    padding: 0 var(--space-xxxs);
}

.building-item {
    display: grid;
    grid-template-columns: 1fr auto 55px auto min-content;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xxs);
    background: rgba(0, 255, 255, 0.05);
    border-radius: var(--border-radius-xs);
    border: 1px solid transparent;
    position: relative;
}

.building-item .building-name {
    font-weight: bold;
    font-size: 0.6em;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.building-item .building-cost-display {
    font-size: 0.55em;
    color: var(--color-text-primary);
    font-weight: normal;
    text-align: right;
}

.building-count-display {
    font-size: 0.6em;
    font-weight: bold;
    color: var(--color-text-primary);
    min-width: 16px;
    text-align: center;
}

.building-actions {
    display: flex;
    gap: var(--space-xxxs);
    justify-self: end;
}

.tooltip-trigger {
    font-size: 0.6em;
    color: var(--color-text-muted);
    border: 1px solid var(--color-text-muted);
    border-radius: 50%;
    width: 12px;
    height: 12px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    cursor: default;
}

.building-tooltip {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    bottom: 110%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-bg-panel-alt);
    border: 1px solid var(--color-primary);
    border-radius: var(--border-radius-sm);
    padding: var(--space-sm);
    font-size: 0.6em;
    color: var(--color-text-secondary);
    width: 150px;
    text-align: center;
    z-index: 10;
    transition: opacity 0.2s;
    pointer-events: none;
}

.tooltip-trigger:hover + .building-tooltip {
    visibility: visible;
    opacity: 1;
}

.building-actions button {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 1px solid;
    background: transparent;
    font-size: 0.8em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    line-height: 1;
}

.building-actions button.btn-build {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.building-actions button.btn-build:hover:not(:disabled) {
    background: var(--color-primary);
    color: var(--color-bg-primary);
    transform: scale(1.05);
}

.building-actions button.btn-destroy {
    color: var(--color-danger);
    border-color: var(--color-danger);
}

.building-actions button.btn-destroy:hover:not(:disabled) {
    background: var(--color-danger);
    color: var(--color-text-primary);
    transform: scale(1.05);
}

.building-actions button:disabled {
    border-color: #666;
    color: #666;
    background: transparent;
    cursor: not-allowed;
}

.build-queue-container {
    margin-top: var(--space-xs);
    border-top: 1px solid rgba(0, 255, 255, 0.3);
    padding-top: var(--space-xxs);
}

.build-queue-container h3 {
    font-size: 0.7em;
    text-align: center;
    margin: 0 0 var(--space-xxxs) 0;
    color: var(--color-secondary);
}

.build-queue-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xxxs);
    margin-top: var(--space-xs);
}

.queue-item {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: var(--space-xxxs);
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--border-radius-xs);
    position: relative;
    overflow: hidden;
}

.queue-item span {
    font-size: 0.6em;
    z-index: 2;
}

.progress-bar-bg {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background-color: rgba(0, 255, 255, 0.1);
    z-index: 1;
}

.progress-bar-fg {
    height: 100%;
    background-color: rgba(0, 255, 255, 0.3);
    transition: width 0.5s linear;
}

.queue-empty {
    font-size: 0.6em;
    text-align: center;
    color: var(--color-text-muted);
    font-style: normal;
    padding: var(--space-xxs);
}