/* Úvodní stránka */
.uvod {
    margin: 0;
    width: auto;
    height: auto;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-image: url(obrázky/gif-wallpaper.gif);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.nadpis {
    position: fixed;
    color: #f2f2f2;
    text-align: center;
    top: 0;
    left: 0;
    width: 100%;
    font-size: 60px;
    margin-top: 260px;
}

.text1 {
    position: fixed;
    color: #f2f2f2;
    text-align: center;
    top: 0;
    left: 0;
    width: 100%;
    font-size: 20px;
    margin-top: 400px;

}

.createdby {
    position: fixed;
    color: #f2f2f2;
    text-align: center;
    left: 0;
    bottom: 0;
    width: 100%;
    font-size: 17px;
    margin-bottom: 43px;
}

/* Menu */
.menu {
    top: 0;
    z-index: 1;
    width: 100%;
    overflow: hidden;
    margin-left: auto;
    margin-right: auto;
    position: absolute;
    background-color: #333;
    box-shadow: 1px 1px 4px 0 rgba(0,0,0,.1);
}
  
.menu ul {
    list-style: none;
    overflow: hidden;
    background-color: #333;
    margin: 0;
    padding: 0;
}
  
.menu li a {
    display: block;
    color: #f2f2f2;
    text-decoration: none;
    padding: 19px 19px;
    border-right: 1px solid #333;
}
  
.menu li a:hover,
.menu .menu-btn:hover {
    background-color: rgb(25, 25, 25);
}
  
.menu .menu-logo {
    float: left;
    display: block;
    color: #f2f2f2;
    text-decoration: none;
    font-size: 20px;
    margin-top: 6px;
    padding: 10px 20px;
}
  
.menu .menu-list {
    clear: both;
    max-height: 0;
    font-size: 17px;
    text-align: center;
    transition: max-height .2s ease-out;
}
  
/* Menu-hamburger-ikona */
.menu .menu-icon {
    float: right;
    cursor: pointer;
    user-select: none;
    position: relative;
    padding: 28px 20px;
}
  
.menu .menu-icon .nav-icon {
    display: block;
    position: relative;
    background: #f2f2f2;
    transition: .2s ease-out;
    width: 18px;
    height: 2px;
}
  
.menu .menu-icon .nav-icon:before,
.menu .menu-icon .nav-icon:after {
    content: '';
    display: block;
    position: absolute;
    background: #f2f2f2;
    transition: all .2s ease-out;
    width: 100%;
    height: 100%;
}
  
  .menu .menu-icon .nav-icon:before {
    top: 5px;
}
  
.menu .menu-icon .nav-icon:after {
    top: -5px;
}
  
.menu .menu-btn {
    display: none;
}
  
.menu .menu-btn:checked ~ .menu-list {
    max-height: 240px;
}
  
.menu .menu-btn:checked ~ .menu-icon .nav-icon {
    background: transparent;
}
  
.menu .menu-btn:checked ~ .menu-icon .nav-icon:before {
    transform: rotate(-45deg);
    top:0;
}
  
.menu .menu-btn:checked ~ .menu-icon .nav-icon:after {
    transform: rotate(45deg);
    top:0;
}

/* Zobrazení-ikony-na-mobilu */
@media (min-width: 48em) {
    .menu li {
      float: left;
    }
    .menu li a {
      padding: 20px 30px;
    }
    .menu .menu-list {
      clear: none;
      float: right;
      max-height: none;
    }
    .menu .menu-icon {
      display: none;
    }
  }

/* O mně */  
.about {
    margin: 0;
    width: auto;
    height: auto;
    background-size: auto;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-image: linear-gradient(to bottom, #bd5c6e 0%, #042552 100%);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.about-nadpis {
    width: auto;
    height: auto;
    color: #f2f2f2;
    text-align: left;
    padding: 50px;
    font-size: 60px;
    margin-top: 60px;
    border-radius: 5px;
    border: 1px solid rgb(38, 41, 46);
    background-color: rgb(38, 41, 46);
}

.sekce {
    width: auto;
    display: flex;
    color: #f2f2f2;
    padding: 10px;
    transition: 0.2s;
    border-radius: 5px;
    margin-bottom: 25px;
    background-color: rgb(38, 41, 46);
    border: 1px solid rgb(38, 41, 46);
}

.sekce:hover {
    transform: scale(1.01);
    -ms-transform: scale(1.01);
    -webkit-transform: scale(1.01);
}

.about-text {
    width: auto;
    padding: 10px;
    font-size: 14px;
}

.projekt-odkazy {
    color: #f2f2f2;
    text-decoration: underline;
}

.about-box {
    width: auto;
    height: auto;
    display: block;
    margin-left: auto;
    margin-right: auto;
    padding: 15px;
    max-width: 1100px;
    background-color: rgba(38, 41, 46, 0.7);
    border: 1px solid rgba(38, 41, 46, 0.7);
}

#back-to-top {
    border: none;
    height: auto;
    display: none;
    position: fixed;
    cursor: pointer;
    color: #f2f2f2;
    right: 0;
    bottom: 0;
    margin-right: 70px;
    margin-bottom: 70px;
    background-color: #ffffff00;
}

.createdby1 {
    width: auto;
    color: #f2f2f2;
    text-align: center;
    font-size: 17px;
    margin-top: 50px;
    margin-bottom: 50px;
}

/* Zobrazeni-back-to-top-tlacitka-na-mobilu */
@media (max-width: 48em) {
    #back-to-top {
        margin-right: 10px;
        margin-bottom: 60px;
        text-align: center;
    }
}
/* Odkazy */
.kontakty {
    margin: 0;
    width: auto;
    height: auto;
    color: #f2f2f2;
    background-size: auto;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-image: linear-gradient(to bottom, #bd5c6e 0%, #042552 100%);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.kontaktní-formulář {
    width: auto;
    height: auto;
    display: block;
    margin-left: auto;
    margin-right: auto;
    padding: 20px;
    max-width: 650px;
    margin-top: 110px;
    border-radius: 10px;
    background-color: rgba(38, 41, 46, 0.7);
    border: 1px solid rgba(38, 41, 46, 0.7);
}

.formulář {
    display: flex;
    margin: 0 auto;
    max-width: 600px;
    flex-direction: column;
}
  
.formulář-text {
    margin-bottom: 10px;
}
  
input[type="text"],
input[type="email"],
textarea {
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
    border: 1px solid #f2f2f2;
}
  
input[type="submit"] {
    border: none;
    cursor: pointer;
    color: #f2f2f2;
    padding: 10px 20px;
    border-radius: 5px;
    background-color: #007bff;
}
  
input[type="submit"]:hover {
    background-color: #0062cc;
}

.textové-pole {
    resize: vertical;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.h2-nadpis {
    margin-top: 5px;
    text-align: center;
}

.socialní-sítě {
    width: auto;
    height: auto;
    display: flex;
    margin-left: auto;
    margin-right: auto;
    align-items: center;
    justify-content: center;
    padding: 20px;
    margin-top: 55px;
    max-width: 650px;
    border-radius: 10px;
    background-color: rgba(38, 41, 46, 0.7);
    border: 1px solid rgba(38, 41, 46, 0.7);
}

.bi {
    width: 55px;
    height: 55px;
    display: flex;
    margin-left: auto;
    margin-right: auto;
    align-items: center;
    justify-content: center;
    margin: 15px;
    max-width: 650px;
    border-radius: 50%;
    border: 1px solid #f2f2f2;
}

.bi:hover {
    transform: scale(1.04);
    -ms-transform: scale(1.04);
    -webkit-transform: scale(1.04);
}

.socialni-sit {
    color: #f2f2f2;
    text-decoration: none;
}

.createdby2 {
    color: #f2f2f2;
    text-align: center;
    text-decoration: none;
    left: 0;
    bottom: 0;
    width: 100%;
    font-size: 17px;
    margin-top: 121px;
    margin-bottom: 45px;
}

/* Zobrazeni-socialnich-siti-na-mobilu */
@media (max-width: 48em) {
    .h2-nadpis {
        margin-top: 5px;
        margin-bottom: 10px;
        font-size: 20px;
    }
    .kontaktní-formulář {
        margin-top: 80px;
        font-size: 16px;
    }
    .socialní-sítě {
        margin-top: 25px;
    }
    .bi {
        width: 40px;
        height: 40px;
    }
    .createdby2 {
        margin-top: 22px;
    }
  }