/* Header Navigation */
header nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    padding: 15px 0;
    background-color: #000;
}
  
header nav a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    font-weight: bold;
    padding: 8px 15px;
    border: 1px solid #fff;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
}
  
header nav a:hover {
    background-color: #fff;
    color: #000;
}

/* Main Section */
main {
    text-align: center;
    padding: 20px;
    background-color: #d3d3d3;
    min-height: calc(100vh - 60px); /* Full height minus header */
}

main h1 {
    font-size: 24px;
    margin-bottom: 20px;
    font-weight: bold;
    text-transform: uppercase;
    border: 2px solid black;
    display: inline-block;
    padding: 5px 20px;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

main h2 {
    font-size: 20px;
    margin: 20px 0;
}

/* Question Box Styling */
.question-block {
    background-color: #fff;
    border: 2px solid #333;
    border-radius: 8px;
    padding: 20px;
    margin: 20px auto;
    max-width: 600px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: left;
}

/* Question Text Styling */
.question-block h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

/* Option Styling */
.question-block label {
    display: block;
    background-color: #f9f9f9;
    padding: 12px 15px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.question-block label:hover {
    background-color: #eee;
    transform: translateX(5px);
}

/* Radio Button Styling */
.question-block input[type="radio"] {
    margin-right: 10px;
    vertical-align: middle;
}

/* Highlight Correct and Incorrect Answers */
.question-block label.correct {
    background-color: #90EE90;
    color: #006400;
    border-color: #006400;
    font-weight: bold;
}

.question-block label.incorrect {
    background-color: #FFB6C1;
    color: #8B0000;
    border-color: #8B0000;
    font-weight: bold;
}

/* Disabled Options Styling */
.question-block label input[disabled] {
    cursor: not-allowed;
}

.question-block label.disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Subject Cards Container */
.subjects-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Subject Card Styling */
.subject-card {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    width: 200px;
    height: 150px;
    background-color: #333;
    color: white;
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.subject-card:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
    background-color: #555;
}

/* Submit Button Styling */
.submit-btn {
    background-color: #4CAF50;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    margin: 20px 0;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background-color: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* Galaxy Canvas */
#galaxyCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-color: #000;
}

/* Responsive Design */
@media (max-width: 768px) {
    .question-block {
        margin: 20px 10px;
    }
    
    .subject-card {
        width: calc(50% - 20px);
    }
    
    main h1 {
        font-size: 20px;
    }
} 
/* Hero Section Styling */
.hero-section {
    padding: 40px 20px;
    text-align: center;
}

.exam-cards {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
}

.card-description {
    font-size: 14px;
    margin-top: 10px;
    opacity: 0.8;
}

/* Navigation Styling */
.nav-logo {
    font-size: 24px;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #333;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
    transition: background-color 0.3s;
}

.nav-button:hover {
    background-color: #555;
}

/* Subject Stats */
.subject-stats {
    font-size: 14px;
    opacity: 0.8;
    display: block;
    margin-top: 5px;
}

/* Back Button */
.back-button {
    margin-top: 30px;
    text-align: center;
}

.card-icon {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.card-stats {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.subjects-container .subject-card {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.subjects-container .subject-card h2 {
    margin: 0.5rem 0;
    font-size: 1.5rem;
}