body {
    background-color: #e3f2fd; 
    margin: 0;
    padding: 20px;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    flex-direction: column; 
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}


.login-container {
    background-color: #0d47a1; 
    color: #ffffff; 
    padding: 30px;
    width: 320px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0px 10px 25px rgba(0,0,0,0.2);
    margin-bottom: 30px; 
}

h2, h3 {
    margin: 5px 0;
    color: #e3f2fd;
}

.form-group {
    margin-bottom: 15px;
    text-align: left; 
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #bbdefb;
}


input {
    width: 100%;
    padding: 12px;
    border: 1px solid #1976d2;
    border-radius: 6px;
    box-sizing: border-box; 
    background-color: #f1f8ff;
}


button {
    width: 100%;
    padding: 12px;
    background-color: #1976d2; 
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

button:hover {
    background-color: #1565c0;
}


.credenciales table {
    background-color: white;
    border-collapse: collapse;
    width: 350px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: none;
}

.credenciales th {
    background-color: #1976d2;
    color: white;
    padding: 12px;
    font-size: 14px;
}

.credenciales td {
    padding: 10px;
    text-align: center;
    border-bottom: 1px solid #e3f2fd;
    color: #0d47a1;
    font-size: 14px;
}

.error {
    background-color: #ffebee;
    color: #c62828;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
    font-size: 13px;
    border: 1px solid #ef9a9a;
}