/* Import Google Font & Font Awesome for Icons */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/all.min.css');

/* Define Root Colors */
:root {
    --primary-color: #1e3a8a; /* Deep Blue */
    --secondary-color: #3b82f6; /* Light Blue */
    --background-color: #f5f7fa; /* Light Gray-Blue */
    --text-color: #333; /* Dark Gray */
    --button-hover: #4a90e2; /* Hover Blue */
    --menu-bg: #1e3a8a; /* Navigation Bar */
    --menu-hover: #ffd700; /* Gold */
    --white: #fff; /* White */
    --error-color: #e11d48; /* Error Red */
    --success-color: #22c55e; /* Success Green */
}

/* Global Styles */
body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    text-align: center;
    margin: 0;
    padding: 0;
}

/* Form Container */
form {
    background-color: var(--white);
    padding: 20px;
    border-radius: 10px;
    width: 60%;
    margin: 20px auto;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
}

form:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.2);
}

/* Input Fields */
input, select {
    width: 90%;
    padding: 10px;
    margin-top: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease-in-out;
}

input:focus, select:focus {
    border-color: var(--secondary-color);
    outline: none;
}

/* Buttons */
button {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 12px;
    border: none;
    border-radius: 6px;
    margin-top: 20px;
    cursor: pointer;
    width: 90%;
    font-size: 16px;
    transition: background-color 0.3s ease-in-out, transform 0.2s;
}

button:hover {
    background-color: var(--button-hover);
    transform: scale(1.05);
}

/* Navigation Menu */
.menu {
    background-color: var(--menu-bg);
    padding: 12px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.menu a {
    color: var(--white);
    text-decoration: none;
    margin: 0 15px;
    font-size: 18px;
    font-weight: 500;
    transition: color 0.3s ease-in-out;
}

.menu a:hover {
    color: var(--menu-hover);
}

/* Icons Styling */
i {
    margin-right: 8px;
}

/* Heading */
h2 {
    font-size: 26px;
    font-weight: 600;
    animation: fadeIn 1s ease-in-out;
}

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Table Styling */
table {
    width: 90%;
    margin: 20px auto;
    border-collapse: collapse;
    background: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

th, td {
    padding: 12px;
    border: 1px solid #ddd;
    text-align: center;
}

th {
    background: var(--primary-color);
    color: white;
}

tr:nth-child(even) {
    background: #f2f2f2;
}

/* Buttons */
.edit-btn, .delete-btn {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 5px;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
}

.edit-btn {
    background: var(--secondary-color);
    color: white;
}

.edit-btn:hover {
    background: #2563eb;
}

.delete-btn {
    background: var(--error-color);
    color: white;
}

.delete-btn:hover {
    background: #be123c;
}

/* Error Message */
.error-message {
    color: var(--error-color);
    font-weight: bold;
    margin-top: 10px;
}

/* Success Message */
.success-message {
    color: var(--success-color);
    font-weight: bold;
    margin-top: 10px;
}

/* Add New Course Button */
.open-modal-btn {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 12px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease-in-out, transform 0.2s;
    display: block;
    width: 200px;
    margin: 20px auto;
    text-align: center;
}

.open-modal-btn:hover {
    background-color: var(--button-hover);
    transform: scale(1.05);
}

/* Modal Popup */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
    background-color: var(--white);
    padding: 18px;
    width: 90%;
    border-radius: 10px;
    margin: 15% auto;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    animation: fadeIn 0.5s ease-in-out;
}

.modal-content h3 {
    color: var(--primary-color);
}

.close-btn {
    float: right;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
}

.close-btn:hover {
    color: var(--error-color);
}

#select {
    width: 92%;
    padding: 8px;
    margin-top: 5px;
    border: 1px solid #c9c9c9;
    border-radius: 5px;
}

.form-group {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.form-group label {
    width: 150px; /* Adjust label width */
    margin-right: 10px;
}

.form-group input,
.form-group select {
    flex: 1;
    padding: 5px;
}

button {
    margin-top: 10px;
    padding: 10px;
}

.main {
    display: flex;
    justify-content: space-around;
    background-color: var(--background-color);
}

.div-1 input {
    width: 100%;
    background-color: var(--error-color);
}

/* Subjects Container */
#subjectsContainer {
    margin-top: 20px;
}

.subject-row {
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
}

.subject-row label {
    font-weight: bold;
    margin-bottom: 5px;
}

.subject-row input {
    margin-bottom: 10px;
}

/* Back Button */
.back-btn {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease-in-out, transform 0.2s;
    text-decoration: none;
}

.back-btn:hover {
    background-color: var(--button-hover);
    transform: scale(1.05);
}