body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1, h2 {
    color: #0056b3;
    text-align: center;
    margin-bottom: 25px;
}

hr {
    border: 0;
    border-top: 1px solid #eee;
    margin: 30px 0;
}

/* Formulario */
.form-section {
    background-color: #e9f5ff;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

#student-form div {
    margin-bottom: 15px;
}

#student-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #004085;
}

#student-form input[type="text"],
#student-form input[type="number"] {
    width: calc(100% - 22px);
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box; /* Incluye padding y border en el ancho total */
}

#student-form button {
    background-color: #007bff;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-right: 10px;
    transition: background-color 0.2s ease-in-out;
}

#student-form button:hover {
    background-color: #0056b3;
}

#student-form .secondary-btn {
    background-color: #6c757d;
}

#student-form .secondary-btn:hover {
    background-color: #5a6268;
}

/* Lista de Estudiantes */
.list-section {
    background-color: #f0f8ff;
    padding: 20px;
    border-radius: 5px;
}

#students-list {
    list-style: none;
    padding: 0;
}

#students-list li {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-bottom: 10px;
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

#students-list li div {
    flex-grow: 1;
}

#students-list li span {
    display: block;
    margin-bottom: 5px;
}

#students-list li strong {
    color: #0056b3;
}

#students-list li .actions button {
    background-color: #ffc107;
    color: #333;
    padding: 8px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    margin-left: 10px;
    transition: background-color 0.2s ease-in-out;
}

#students-list li .actions button:hover {
    background-color: #e0a800;
}

#students-list li .actions button.delete-btn {
    background-color: #dc3545;
    color: white;
}

#students-list li .actions button.delete-btn:hover {
    background-color: #c82333;
}

/* Mensajes de error/éxito */
.message {
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 5px;
    text-align: center;
    font-weight: bold;
}

.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}