#spaceship-interface {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

#spaceship-interface.hidden {
    display: none;
}

.spaceship-window {
    background: linear-gradient(45deg, #1a1a2e, #16213e);
    border: 2px solid #4a5568;
    border-radius: 15px;
    width: 100%;
    height: 100%;
    color: #fff;
    box-shadow: 0 0 20px rgba(0, 100, 255, 0.3);
    display: flex;
    flex-direction: column;
}

.spaceship-header {
    padding: 1rem;
    border-bottom: 2px solid #4a5568;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lesson-title {
    font-family: 'Orbitron', sans-serif;
    color: #00ff9d;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    padding: 0.5rem;
}

.spaceship-content {
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto auto auto;
    grid-gap: 2rem;
    height: calc(100% - 70px);
    overflow-y: auto;
}

.mission-brief {
    font-size: 1.2rem;
    background: rgba(255, 157, 0, 0.1);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #4a5568;
}

.concept-explanation {
    font-size: 1.2rem;
    background: rgba(0, 100, 255, 0.1);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #4a5568;
}

.problem-section {
    font-size: 1.2rem;
    grid-column: 1 / -1;
    background: rgba(0, 255, 157, 0.1);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #4a5568;
}

.problem-text {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #00ff9d;
}

.graph-panel {
    grid-column: 1 / -1;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    min-height: 350px;
    display: flex; 
    justify-content: center; 
    align-items: center;
}

.control-panel {
    grid-column: 1 / -1;
    display: flex;
    gap: 1rem;
}

#answer-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid #4a5568;
    border-radius: 5px;
    padding: 0.5rem 1rem;
    color: #fff;
    font-family: 'Space Grotesk', sans-serif;
}

#submit-answer {
    background: linear-gradient(45deg, #00ff9d, #00d6ff);
    border: none;
    border-radius: 5px;
    padding: 0.5rem 2rem;
    color: #1a1a2e;
    font-family: 'Orbitron', sans-serif;
    cursor: pointer;
    transition: transform 0.2s;
}

#submit-answer:hover {
    transform: scale(1.05);
}

#wormhole-challenge {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
}

#wormhole-challenge.hidden {
    display: none;
}

#wormholeCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.challenge-ui {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    color: white;
    font-family: 'Orbitron', sans-serif;
    pointer-events: none;
    padding-top: 5vh;
}

.question-panel {
    background: rgba(0, 0, 0, 0.7);
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 15vh;
    max-width: 750px;
    text-align: center;
}

.progress-indicator {
    position: absolute;
    top: 0rem;
    right: 0rem;
    background: rgba(0, 0, 0, 0.7);
    padding: 1rem;
    border-radius: 5px;
}