/* Body styling */
body {
    font-family: Arial, sans-serif;
    background-color: #f0f4f8;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding-top: 60px; /* Adjust distance for header height */
}

/* Header container styling */
.header-container {
    background-color: #3182ce; /* Blue background */
    color: #ffffff; /* White text */
    display: flex;
    justify-content: space-between; /* Space between title and close button */
    align-items: center;
    padding: 10px 20px;
    border-radius: 5px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000; /* Ensure it stays above other elements */
}

/* Title styling */
.header-title {
    font-size: 20px;
    font-weight: bold;
    margin: 0;
}

/* Close button styling */
.close-button {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 24px;
    cursor: pointer;
}

/* Modal styling */
.modal {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    width: 80%;
    max-width: 1000px;
}

/* Modal title */
.modal-title {
    font-size: 24px;
    margin-bottom: 20px;
}

/* Frameworks container */
.frameworks-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

/* Framework card styling */
.framework-card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    flex: 1 1 calc(25% - 20px); /* Four columns layout */
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.framework-card p {
    color: #888;
    opacity: 0.8;
}

.framework-card img {
    height: 50px;
    margin-bottom: 10px;
}

/* Tag styling */
.tag {
    background-color: #ddd;
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 12px;
    display: inline-block;
    margin-left: 5px;
}

/* Button containers */
.buttons {
    margin-top: 15px;
}

/* Button styling for continue and guide buttons */
.continue-btn, .guide-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.continue-btn {
    background-color: #007bff;
    color: white;
}

.guide-btn {
    background-color: #f0f0f0;
    color: #333;
    margin-left: 10px;
}

/* Container styling for edit custom challenge */
.container {
    width: 600px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
}

/* Reapply header styling in container for specific cases */
.container .header-container {
    background-color: #3498db;
    color: white;
    padding: 10px;
    border-radius: 8px 8px 0 0;
}

/* Title styling in container */
.container .header-title {
    font-size: 18px;
    margin: 0;
}

/* Close button styling */
.container .close-button {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

/* Form group styling */
.form-group {
    margin-top: 15px;
}

.form-group label {
    font-weight: bold;
    display: block;
    
    margin-bottom: 5px;
}

.form-group input[type="text"], .form-group select, .form-group textarea {
    width: 100%;
    padding: 8px;
    border-radius: 4px;
    border: 1px solid #ddd;
    font-size: 14px;
}

/* Container buttons styling */
.container .buttons {
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
}

/* Update button styling */
.button {
    background-color: #3498db;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

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

/* Test cases styling */
.test-cases {
    margin-top: 15px;
}

/* Test case input styling */
.test-case {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.test-case input {
    width: 45%;
    padding: 6px;
    border-radius: 4px;
    border: 1px solid #ddd;
}
/* Parent container to center content */
.parent-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    padding: 20px;
    gap: 40px;
}

/* Container for content */
.container {
    width: 100%;
    max-width: 600px;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 20px;
}

/* Header container */
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

.header-title {
    font-size: 24px;
    margin: 0;
}

.close-button {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #fefefe;
}

.close-button:hover {
    color: #f0ecec;
}


/* Form group styling */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.difficulty-container {
    display: flex;
    align-items: center;
    gap: 10px;
    
}

.difficulty-label {
    font-size: 14px;
}

.difficulty-select {
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

/* Input description */
.input-description {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.input-description:focus {
    border-color: #007bff;
    outline: none;
}

/* CTA Button */
.cta-button {
    background-color: #3e7af2;
    color: #ffffff;
    padding: 12px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    width: 100%;
    max-width: 400px;
    margin: 20px auto 0;
    display: block; /* Ensures the button behaves like a block element */
    text-align: center;
    transition: background-color 0.3s;
    
}

.cta-button:hover {
    background-color: #f7f8fb;
}
.description-container {
    display: flex;
    align-items: center; /* Align items vertically centered */
    gap: 10px; /* Space between label and input */
}

.description-label {
    font-size: 14px;
    color: #333;
    white-space: nowrap; /* Prevent label from wrapping */
    width: 120px; /* Fixed width for the label */
}

.input-description {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    flex: 1; /* Allow the input to take the remaining space */
}

.input-description:focus {
    border-color: #007bff;
    outline: none;
}
.continue-btn {
    display: inline-block;
    background-color: #007bff;
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 16px;
    text-align: center;
    cursor: pointer;
}

.continue-btn:hover {
    background-color: #0056b3;
}


/* Wrapper styling */
.content-wrapper {
    background-color: #ffffff;  /* Màu nền trắng cho khung */
    padding: 30px;              /* Khoảng cách bên trong khung */
    border-radius: 8px;         /* Bo tròn các góc */
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); /* Hiệu ứng bóng đổ */
    max-width: 700px;           /* Giới hạn chiều rộng của khung */
    margin: 40px auto;          /* Căn giữa khung và tạo khoảng trống trên dưới */
}