html,
body {
  height: 100%;
}

:root {
  --background-color: #f5f5f5;
  --text-color: #333;
  --input-border-color: #ccc;
}

body {
  display: flex;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: var(--background-color);
  color: var(--text-color);
  background-image: url('../img/login_bg.png');
  background-size: cover; 
}

h1.h3  {
  color:white;
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;

}

.bd-placeholder-img {
  font-size: 1.125rem;
  text-anchor: middle;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

.btn-primary {
  color: #fff;
  background-color: #355c86;
  border-color: #355c86;
  text-transform: uppercase;
  font-size: 15px;
}

.copyright {
  position: fixed;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  color: white;
  font-size: 14px;
}

.form-signin {
  width: 100%;
  max-width: 330px;
  padding: 15px;
  margin: auto;
}

.form-signin .checkbox {
  font-weight: 400;
}

.form-signin .form-floating:focus-within {
  z-index: 2;
}

.form-signin input[type="email"] {
  margin-bottom: -1px;
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
  border-color: var(--input-border-color);
}

.form-signin input[type="password"] {
  margin-bottom: 10px;
  border-color: var(--input-border-color);
}

h5 {
  font-size: 50px !important;
}

/* Responzivní styl pro menší obrazovky */
@media (max-width: 576px) {
  .form-signin {
    max-width: 100%;
    padding: 10px;
  }

  h5 {
    font-size: 40px !important;
  }
}

@media (min-width: 768px) {
  .bd-placeholder-img-lg {
      font-size: 3.5rem;
  }
}