/* === GLOBAL STYLES === */
body {
    font-family: 'Raleway', sans-serif; 
    background-color: #0d0d0d; 
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    text-align: center;
}

.container {
    text-align: center;
    width: 100%;
}

/* === TYPOGRAPHY === */
h1 {
    font-family: 'Orbitron', sans-serif; 
    font-size: 48px;
    margin-bottom: 20px;
}

/* === UTILITY CLASSES === */
.hidden {
    display: none !important; 
}

/* === BUTTONS === */
button {
    background-color: #3498db; 
    color: white;
    padding: 10px 20px;
    border: none;
    font-size: 18px;
    cursor: pointer;
    border-radius: 5px;
    margin-top: 20px;
}

button:hover {
    background-color: #2980b9; 
}

/* === 3D PLANET CONTAINERS === */
#planetContainer, #finalPlanetContainer {
    flex: 1;
    max-width: 50%; 
    height: auto;
    aspect-ratio: 1; 
    margin-right: 20px;
    background-color: transparent; 
}

/* === CHOICE BUTTONS === */
.choice-btn {
    background-color: #16a085; 
    color: white;
    padding: 10px 20px;
    border: none;
    margin: 10px 0; 
    cursor: pointer;
    font-size: 16px;
    border-radius: 5px;
    width: 100%; 
    max-width: 300px;
}

.choice-btn:hover {
    background-color: #0e6655; 
}

/* === QUESTION SECTION === */
#questions {
    margin-top: 20px;
}

#questions p {
    font-size: 18px;
}

#factText {
    margin-top: 20px;
    font-size: 14px;
    color: #a0a0a0; 
}

/* === END PAGE LAYOUT === */
#endPage {
    margin-top: 50px;
}

#planetStats {
    margin-bottom: 20px;
}

input[type="text"] {
    padding: 10px;
    font-size: 18px;
    margin-bottom: 20px;
}

/* === SIMULATION PAGE LAYOUT === */
#simulationPage {
    display: flex;
    flex-direction: row; 
    justify-content: center;
    align-items: center; 
    margin-top: 20px;
    width: 100%;
    min-height: 80vh; 
}

#planetContainer {
    flex: 1;
    max-width: 50%;
    height: auto;
    aspect-ratio: 1;
}

#questions {
    flex: 1;
    max-width: 50%;
    margin-left: 20px;
    text-align: center; 
    display: flex;
    flex-direction: column;
    align-items: center;
}

#questionText {
    font-size: 18px;
    margin-bottom: 20px;
    font-weight: bold;
}

#choices {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px; 
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
    #simulationPage {
        flex-direction: column; 
        align-items: center;
    }
    
    #planetContainer, #questions {
        max-width: 90%; 
        margin: 10px 0;
    }
    
    h1 {
        font-size: 32px; 
    }
}

/* === END PAGE SPECIFIC === */
#endContent {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

#submitNameButton {
    margin-top: 5px;
}

#newSimulationButton {
    margin-top: 5px;
}

/* === BACKGROUND VIDEO === */
#backgroundVideo {
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -1; 
    background: url('path/to/fallback-image.jpg') no-repeat;
    background-size: cover;
}

/* === OVERLAY EFFECTS === */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); 
    z-index: -1; 
}

/* === PLANET NAME DISPLAY === */
#planetNameDisplay {
    font-size: 32px;
    font-weight: bold;
    color: #FFFFFF;
    text-shadow: 2px 2px 4px #000000; 
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%); 
    z-index: 10; 
}