.app-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.controls-bar {
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: 10px 20px;
    background: rgba(30, 41, 59, 0.7);
    border-radius: 8px;
    margin-bottom: 1rem;
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.control-group label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.control-group input[type="date"] {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    padding: 5px 10px;
    border-radius: 4px;
    font-family: inherit;
}

.control-group button {
    background: var(--tag-bg-blue);
    color: white;
    border: none;
    padding: 5px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: filter 0.2s;
}

.control-group button:hover {
    filter: brightness(1.1);
}

.canvas-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: radial-gradient(circle at center, #1a2030 0%, #0f111a 100%);
    border-radius: 8px;
    border: 1px solid var(--card-border);
    overflow: hidden;
    cursor: grab;
}

.canvas-wrapper:active {
    cursor: grabbing;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
}

#infoOverlay {
    position: absolute;
    top: 10px;
    left: 10px;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

#hoverInfo {
    background: rgba(0, 0, 0, 0.7);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--accent-color);
}

#galacticCenterIndicator {
    background: rgba(0, 0, 0, 0.7);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.85rem;
    color: #e879f9;
    /* Purple for galaxy */
}

#controlsHelp {
    margin-top: 10px;
    background: rgba(0, 0, 0, 0.5);
    padding: 8px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 4px;
    pointer-events: none;
}

.planet-info-panel {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 250px;
    background: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 15px;
    color: var(--text-main);
    transition: opacity 0.3s, transform 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.planet-info-panel.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateX(20px);
}

.planet-info-panel h2 {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.2rem;
    color: var(--accent-color);
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 5px;
}

.planet-info-panel #closeInfoBtn {
    position: absolute;
    top: 5px;
    right: 10px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.planet-info-panel #closeInfoBtn:hover {
    color: var(--text-main);
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-family: 'Space Mono', monospace;
    margin-top: 5px;
}

.info-label {
    color: var(--text-muted);
}

.info-value {
    color: var(--text-main);
}

.legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 1rem;
    padding: 10px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}