body{
  font-family: Arial, Helvetica, sans-serif;
  margin-right: 10%;
  margin-left: 10%;
  margin-top: 0%;
  margin-bottom: 3%;
}

p{
  font-family: Arial, Helvetica, sans-serif;
  margin-top: 12px;
  margin-bottom: 12px;
  text-align: justify;
  line-height: 23px;
}

ol{
  font-family: Arial, Helvetica, sans-serif;
  font-size: small;
  margin-top: 12px;
  margin-bottom: 12px;
  margin-left: 2%;
  text-align: justify;
  line-height: 23px;
}

.par02{
  font-style: italic;
}

.index-title{
  font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  color: black;  
  font-size: 24px;
  width: 280px;
  line-height: 36px;
}

.piece-title{
  font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  font-size: 24px;
  width: 400px;
  line-height: 24px;
  margin-top: 2%;
  margin-bottom: 18px;
}

.piece-subtitle{
  font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  font-size: 22px;
  width: 350px;
  line-height: 24px;
  margin-top: 2%;
  margin-bottom: 6px;
}
.index-subtitle{
  font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  color: black;
  font-size: 24px;
  width: 280px;
  line-height: 24px;
}

.author{
  font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  color: black;
  font-size: 18px;
  width: 280px;
  line-height: 24px;
}

a{
  font-family: Georgia, 'Times New Roman', Times, serif;
  text-decoration: none;
  color: black;
  font-size: normal;
  padding: 5px 12px;
  border-radius: 4px;  
  cursor: pointer;
  transition: opacity 0.15s;
  margin-left: auto;
  margin-right: auto;
}
a:hover{
  opacity: 0.8;
}
a:focus{
  outline: 3px solid #b3d5e0;
  
}

div.insert{
  margin-right: 15%;
  margin-left: 15%;
  margin-top: 0%;
  margin-bottom: 3%;
}

div.insert02{
  margin-right: 10%;
  margin-left: 10%;
  margin-top: 0%;
  margin-bottom: 3%;
}

div.insert03{
  margin-right: 5%;
  margin-left: 5%;
  margin-top: 0%;
  margin-bottom: 0%;
}


a.spoiler{
  font-family: Arial, Helvetica, sans-serif;
  text-decoration: none;
  color: black;
  padding: 7px 0px;
  border-radius: 4px;  
  font-size: large;
  font-weight: bold;
  text-decoration: underline;
  cursor: pointer;
  transition: opacity 0.15s;
  margin-left: auto;
  margin-right: auto;
}
a.spoiler:hover{
  opacity: 0.8;
}
a.spoiler:focus{
  outline: 3px solid #b3d5e0 / 20%;  
}

a.spoiler02{
  font-family: Arial, Helvetica, sans-serif;
  text-decoration: none;
  color: black;
  padding: 7px 0px;
  border-radius: 4px;
  text-decoration: underline;
  font-size: normal;
  font-weight: normal;
  cursor: pointer;
  transition: opacity 0.15s;
  margin-left: auto;
  margin-right: auto;
}
a.spoiler02:hover{
  opacity: 0.8;
}
a.spoiler02:focus{
  outline: 3px solid #b3d5e0 / 20%;  
}

a.mail{
  font-family: Arial, Helvetica, sans-serif;
  text-decoration: none;
  color: black;
  text-decoration: underline;
  background: white;
  padding: 0px 0px;
  border-radius: 0px;
  cursor: pointer;
  transition: opacity 0.15s;
  margin-left: auto;
  margin-right: auto;
}
a.mail:hover{
  opacity: 0.8;
}
a.mail:focus{
  outline: 3px solid #b3d5e0;
  
}

a.drop{
  font-family: Arial, Helvetica, sans-serif;
  text-decoration: none;
  color: black;
  padding: 0px 0px;
  border-radius: 0px;
  cursor: pointer;
  transition: opacity 0.15s;
  margin-left: auto;
  margin-right: auto;
}
a.drop:hover{
  opacity: 0.8;
}
a.drop:focus{
  outline: 3px solid #b3d5e0;
  
}

.box{
  box-sizing: border-box;
  display: block;
  float: none;
  line-height: normal;
  position: static;
  z-index: auto;

}

@import url('https://fonts.googleapis.com/css2?family=Rubik&display=swap');

:root {
  --font-google: 'Rubik', sans-serif;   
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {        
    height: 100vh;
}

nav {
    max-width: 50rem;
    margin: 1rem auto;
    font-family: var(--font-google);
}

nav ul {
    list-style: none;
}

/* Open/close menu button */

button {
    display: block;
    margin: 2rem auto;
    padding: .5em 1em;
    border: 0.25rem solid black;
    color: black;
    background-color: #b3d5e0;
    font-family: var(--font-google);
    font-size: 1rem;
    cursor: pointer;
    transition: 250ms;
    border-radius: 1em;
}

@media (min-width: 40rem) {    
    button {
        display: none;
    }
}

button:hover {
    background-color: #b3d5e0;
}

/* Menu */

.menu {
    --color-menu-dark: #b3d5e0;
    display: none;    
    flex-direction: column;      
    position: relative;
    box-shadow: 0 0 .5rem var(--color-menu-dark);
}  

@media (min-width: 40rem) {    
    .menu {   
        display: flex;     
        flex-direction: row;
        border-radius: 7px;              
    }  
}

.menu.activated {
    display: flex;
}

.menu--background {
    background-color: var(--color-menu-dark);
    color: black;    
}

/* Menu button */

.menu__button {    
    padding: .75em 1em;
    cursor: pointer;
    text-align: center;    
    flex: 1 0 auto;
    position: relative;   
}

.menu__button:hover {
    background-color: #82b2c2;
}

@media (min-width: 40rem) {    
    .menu__button--arrow {   
        position: relative;        
    }  

    .menu__button--arrow::before {   
        content: '▼';
        color: black;
        position: absolute;
        left: 50%;
        bottom: 0;
        transform: scale(.5, .3) translate(-50%);
    }  

    .menu__button--arrow:hover::before {   
        display: none;
    }  
}

/* Dropdown menu */

.dropdown-container {
    width: 100%;
    display: none;
    margin-top: 1rem;
    position: relative;
    box-shadow: 0 0 2rem #b3d5e0;        
}

.dropdown-container::before {
    content: '▼';
    transform: scale(0.7);    
    position: absolute;
    color: black;    
    top: -2.5rem;
    left: 0;
    background-color: #82b2c2;
    border-radius: 100%;    
    padding: .25em .55em;
    box-shadow: 0 0 2rem #b3d5e0;        
}

/* Dropdown menu - desktop */

@media (min-width: 40rem) {    
    .dropdown-container {        
        display: block;        
        position: absolute;
        left: 0;          
        box-shadow: none;
        pointer-events: none;
        overflow: hidden;
        margin-top: .75rem;
        border-radius: 0 0 .25em .25em;        
    }
    
    .dropdown-container::before {                
        display: none;      
    }        
}

/* Dropdown menu content*/

.dropdown-container > ul {    
    background-color: #82b2c2;
    transition: 250ms;    
}

.dropdown-container > ul > li {
    padding-block: .75em;
}

.dropdown-container > ul > li:hover {
    background-color: #b3d5e0;
    color: black;      
}

.menu__button.activated .dropdown-container{
    display: block;
}

/* Dropdown menu content - desktop */

@media (min-width: 40rem) {      
    .dropdown-container > ul {    
        transform: translate(0, -100%);        
    }
   
    .menu__button:hover > .dropdown-container {
        pointer-events: initial;          
    }

    .menu__button:hover > .dropdown-container > ul {
        transform: translate(0, 0);        
    }
  
}

/* Transparent title */

.title {
    display: none;
}

@media (min-width: 40rem) {    
    .title {
        display: block;
        max-width: 50rem;
        margin: 1rem auto;
        font-family: var(--font-google);
        user-select: none;
    }

    .title > h1 {
        font-size: 7rem;
        color: #ffffff40;
    }
}

.item1 { grid-area: welcome;}
.item2 { grid-area: tohelleraucom;}
.item3 { grid-area: img01; }
.item4 { grid-area: img02; }
.item5 { grid-area: img03; }
.item6 { grid-area: img04; }
.item7 { grid-area: shelter;}
.item8 { grid-area: img05;}
.item9 { grid-area: img06;}
.item10 { grid-area: img07;}
.item11 { grid-area: img08;}
.item12 { grid-area: img09;}
.item13 { grid-area: img10;}
.item14 { grid-area: img11;}
.item15 { grid-area: img12;}


.grid-container {
  display: grid;
  grid-template-areas:
    'welcome welcome welcome welcome'
    'tohelleraucom tohelleraucom tohelleraucom tohelleraucom'
    'img01 img02 img03 img04'
    'shelter shelter shelter shelter'
    'img05 img06 img07 img08'
    'img09 img10 img11 img12'
    'img13 img14 img15 img16';
  gap: 5px;
  background-color: #b3d5e0;
  border: 1px;
  border-radius: 7px;
  padding: 5px;
  margin-top: 3%;
}

.grid-container > div {
  font-family: Georgia, 'Times New Roman', Times, serif;
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 5px 0;
  border: 1px;
  border-radius: 7px;
}

.grid-container02 {
  display: grid;
  background-color: #b3d5e0;
  grid-template-columns: 25% 25% 25% 25%;
  padding: 2px;
  border-radius: 7px;
}
.grid-item02 {
  background-color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(179, 213, 224, 0.8);
  padding: 15px;
  border-radius: 7px;
  text-align: left;
  text-align: justify;
  line-height: 25px;
}


#return-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: rgba(179, 213, 224, .8);
  width: 50px;
  height: 50px;
  display: block;
  text-decoration: none;
  -webkit-border-radius: 35px;
  -moz-border-radius: 35px;
  border-radius: 35px;
  display: none;
  -webkit-transition: all 0.3s linear;
  -moz-transition: all 0.3s ease;
  -ms-transition: all 0.3s ease;
  -o-transition: all 0.3s ease;
  transition: all 0.3s ease;
}

#return-to-top i {
  color: #fff;
  margin: 0;
  position: relative;
  left: 16px;
  top: 13px;
  font-size: 19px;
  -webkit-transition: all 0.3s ease;
  -moz-transition: all 0.3s ease;
  -ms-transition: all 0.3s ease;
  -o-transition: all 0.3s ease;
  transition: all 0.3s ease;
}

#return-to-top:hover {
  background: #b3d5e0;
}
#return-to-top:hover i {
  color: #fff;
  top: 5px;
}

img {
  width: 100%;
  height: auto;
  }