/* Main styles for the ELT Course */

/* Global styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header styles */
header {
    background-color: #1e3a8a;
    color: white;
    padding: 2rem;
    text-align: center;
    border-radius: 8px 8px 0 0;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Navigation styles */
nav {
    background-color: #f0f4f8;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.navigation-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
}

.button {
    display: inline-block;
    background-color: #2563eb;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.button:hover {
    background-color: #1e40af;
}

nav h2 {
    margin-bottom: 1rem;
    color: #1e3a8a;
    border-bottom: 2px solid #1e3a8a;
    padding-bottom: 0.5rem;
}

nav ul {
    list-style-type: none;
}

nav ul li {
    margin-bottom: 0.8rem;
}

nav ul li a {
    display: block;
    color: #2563eb;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

nav ul li a:hover {
    background-color: #dbeafe;
    color: #1e40af;
    transform: translateX(5px);
}

/* Main content styles */
main {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

main h2 {
    color: #1e3a8a;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid #e5e7eb;
    padding-bottom: 0.5rem;
}

main p {
    margin-bottom: 1.5rem;
}

/* Footer styles */
footer {
    text-align: center;
    padding: 1.5rem;
    background-color: #1e3a8a;
    color: white;
    border-radius: 0 0 8px 8px;
}

/* Module page specific styles */
.module-content {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.module-content h2 {
    color: #1e3a8a;
    margin-bottom: 1.5rem;
}

.module-content h3 {
    color: #2563eb;
    margin: 1.5rem 0 1rem 0;
}

.module-content p {
    margin-bottom: 1rem;
}

.module-content ul, .module-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.module-content li {
    margin-bottom: 0.5rem;
}

/* Interactive elements */
.interactive-element {
    background-color: #f0f7ff;
    border-left: 4px solid #3b82f6;
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 8px 8px 0;
}

.interactive-element h4 {
    color: #1e40af;
    margin-bottom: 1rem;
}

.quiz-container {
    background-color: #f0f4f8;
    padding: 1.5rem;
    border-radius: 8px;
    margin: 2rem 0;
}

.quiz-question {
    margin-bottom: 1.5rem;
}

.quiz-options {
    list-style-type: none;
    padding-left: 1rem;
}

.quiz-options li {
    margin-bottom: 0.8rem;
    padding: 0.5rem;
    background-color: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.quiz-options li:hover {
    background-color: #dbeafe;
}

/* Responsive design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    header {
        padding: 1.5rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    nav, main {
        padding: 1rem;
    }
}