body {
    background-color:#FFF;
    padding:0;
    margin:0;
    box-sizing: border-box;
    animation: fadeInAnimation ease 0.4s;
    animation-iteration-count: 1; 
    animation-fill-mode: forwards; 
    background-image: url('../img/background.png');
    background-repeat: no-repeat;
    background-size:cover; 
    background-attachment: fixed;
}

.psp {
    background-color: #0067B8;
    color:white;
    padding-left:5px;
    padding-right: 5px;
    font-weight: 500;
    margin-right: 6px;
    border-radius: 4px;
}

.bpsp {
    background-color: #0067B8;
    color:white;
    padding-left:5px;
    padding-right: 5px;
    font-weight: 600;
    margin-right: 6px;
}










.nav_section {
    position: fixed;
    height:70px;
    width: 100%;
    box-sizing: border-box;
    background-color: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px);
    margin: 0px;
    box-shadow:0px 0px 6px 2px #AAAAAA;
    padding:10px;
    display:flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

.nav_left {
    padding-left: 25px;
    flex: 1;
    user-select: none;
    display: flex;
    align-items: center;
}

.nav_right {
    flex:1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    box-sizing: border-box;
    height:100%;
}

.nav_a {
    text-decoration: none;
    height:50px;
}

.nav_an {
    text-decoration: none;
    height:50px;
    width: 90px;
}

.nav_items {
    flex:0;
    min-width: 70px;
    margin-right: 10px;
    height:100%;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
    user-select: none;
    transition: background-color 0.4s,color 0.4s;
    color:#7E96B3;
}

.nav_items:hover {
    background-color:#1384D6;
    color:white;
}

.nav_items:active {
    background-color:#55aeee;
}

.nav_items_more {
    flex:0;
    min-width: 70px;
    margin-right: 10px;
    height:100%;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
    user-select: none;
    color:#7E96B3;
    transition: background-color 0.4s,color 0.4s;
    display: none;
}

.nav_items_more:hover {
    background-color:#1384D6;
    color:white;
}

.nav_items_more:hover .nav_menu {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: center;
    animation: fadeInAnimation ease 0.4s;
    animation-iteration-count: 1; 
    animation-fill-mode: forwards; 
}

.nav_items_more:active {
    background-color:#55aeee;
    color:white;
}

.nav_menu {
    position: fixed;
    display: none;
    box-sizing: border-box;
    margin:0;
    width:90px;
    min-height:100px;
    background-color: white;
    right:10px;
    top:60px;
    border-radius: 5px;
    box-shadow:0px 0px 4px 1px #AAAAAA;
}

.nav_menu_items {
    display: flex;
    color:#7E96B3;
    min-height: 50px;
    align-items: center;
    justify-content: center;
    user-select: none;
    width:100%;
    transition: background-color 0.4s,color 0.4s;
}

.nav_menu_items:hover {
    background-color: #1384D6;
    color:white;
}

.nav_menu_items:active {
    background-color: #55aeee;
    color:white;
}









.main_section {
    width:100%;
    box-sizing: border-box;
    padding:25px;
    margin-bottom:0px;
    user-select: none;
    padding-top:95px;
    background-repeat: no-repeat;
    background-size:cover; 
    background-attachment: fixed;
}

.main_section h1{
    color:white;
    font-size:60px;
    text-align:center;
    width:100%;
    padding:0;
    margin:0;
    margin-top:280px;
    font-weight: 500;
}

.main_section_author_s {
    display: flex;
}

.main_section p {
    color:white;
    font-size:18px;
    word-wrap: break-word;
    word-break: break-all;
    width: 300px;
    margin:0;
    margin-top:30px;
    margin-left:calc(50% - 150px);
    padding:0;
    text-align: center;
    margin-bottom: 40px;
}








.info_section {
    width:100%;
    box-sizing: border-box;
    padding-left:80px;
    padding-right:80px;
    padding-top:35px;
    padding-bottom: 35px;
    background-color: rgba(255,255,255,0.7);
}

::-webkit-scrollbar{
    width: 7px;
    height: 7px;
    background-color:rgba(0,0,0,0);
}

::-webkit-scrollbar-thumb{
    width: 10px;
    height: 10px;
    background-color:rgba(0,103,184,0.7);
    border-radius: 3px;
}

.info_section h1 {
    color:#0067B8;
    font-size:32px;
}

.info_section_body {
    display:flex;
	min-height:320px;
    box-sizing: border-box;
    justify-content: space-around;
    flex-wrap: wrap;
    flex-direction: row;
}

.info_section_body a {
    text-decoration: none;
    user-select: none;
}

.info_section_item {
    box-shadow: 0px 0px 2px #888888;
    background-color: #fff;
    height:270px;
    width:300px;
    flex-grow: 0;
    margin-left:14px;
    margin-right:14px;
    margin-top:20px;
    border-radius: 10px;
    transition: all 0.2s;
    overflow: hidden;
}

.info_section_item h3 {
    margin-left:10px;
    margin-top:10px;
    text-decoration: none;
    font-size:20px;
    color:#0067B8;
    margin-bottom: 0;
}

.info_author_block {
    display: flex;
    flex-direction: row-reverse;
}

.info_author_block p {
    flex-grow: 0;
    margin-bottom:0;
    margin-right: 10px;
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color:rgb(136, 136, 136);;
}

.info_author {
    margin-right:10px;
    margin-top: 10px;
    width:34px;
    height:34px;
    border-radius: 4px;
    border:2px solid rgba(0,0,0,0.4);
    flex-grow: 0;
}

.info_section_item:hover {
    box-shadow: 1px 1px 10px #888888;
}














.bottom_section {
    width: 100%;
    margin-top:50px;
    padding:40px;
    box-sizing: border-box;
    background-color:rgba(255,255,255,0.7);
}

.bottom_section h1{
    color:#007ACC;
    font-size:32px;
    width:100%;
    padding:0;
    margin:0;
    text-align: center;
}

.bottom_section h4 {
    color:#3C5675;
    font-size:20px;
    word-wrap: break-word;
    margin:0;
    padding:0;
    margin-top:20px;
    text-align: center;
    font-weight:500;
    width:100%;
    box-sizing: border-box;
}

.bottom_section p {
    color:#56626e;
    font-size:18px;
    word-wrap: break-word;
    word-break: break-all;
    margin:0 auto;
    padding:0;
    margin-top:40px;
    width:100%;
    max-width: 600px;
}

.foot_section {
    width: 100%;
    padding:20px;
    color:#3C5675;
    box-sizing: border-box;
    background-color:rgba(255,255,255,0.7);
}

.foot_section p {
    color:56626e;
    font-size:15px;
    word-wrap: break-word;
    word-break: break-all;
    margin:0 auto;
    padding:0;
    width:100%;
    max-width: 500px;
    text-align: center;
    margin-bottom:40px;
    margin-top:50px;
}

@media screen and (max-width: 700px) {

    .info_section {
        padding-left:25px;
        padding-right:25px;
    }

    .use_button {
        width: 70%;
    }

    .nav_items {
        display: none;
    }

    .nav_items_more {
        display: flex;
    }

    .main_section h1 {
        font-size:44px;
    }
}
  
@keyframes fadeInAnimation { 
    0% { 
        opacity: 0; 
    } 
    100% { 
        opacity: 1; 
     } 
}