html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

/*
body {
  margin-bottom: 60px;
}
*/

header.main_header {
  background:rgba(0,0,0,0.9); 
}

.logo {
    width:auto; 
    height: 26px;
    vertical-align: middle;
    margin: 15px;
    margin-left: 42px;
    margin-bottom: 12px;
}

.bg_bubble {
  background: url('../../assets/bg_bubble.jpg');
  background-size: cover;
  background-attachment: fixed;
  background-repeat: no-repeat;
  padding:6em 0;
}

h1 {
  font-size: 3em;
  font-weight: 700;
}

footer {
  background: #202020;
}

:root {
  --bg-gray: #f2f2f2;
  --bg-light-gray: rgba(255, 255, 255, 0.6);
}

.bg_gray {
  background: var(--bg-gray);
}

.bg_light_gray {
  background: var(--bg-light-gray);
}

.border_light_gray {
  border: 3px solid var(--bg-light-gray);
  box-shadow: 1px 1px 6px rgba(0, 0, 0, 0.6);
}

.text-right {
  text-align: right;
}

.text-right-md, .text-left-md {
  text-align: center;
}

.no_style_list {
  list-style: none;
}

.pointer {
  cursor: pointer;
}

.container-my-fluid {
  width: 100%;
  display: flex;
}

@media screen and (min-width: 768px) {
  .text-right-md {
    text-align: right;
  }

  .text-left-md {
    text-align: left;
  }
}

form {
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  background-color: #f7f7f7;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

  form input[type="text"],
  form input[type="email"],
  form select,
  form textarea {
    width: 100%;
    padding: 10px;
    margin: 5px 0 20px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
  }

  form input[type="submit"] {
    background-color: #4CAF50;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }

    form input[type="submit"]:hover {
      background-color: #45a049;
    }