body{
    font-family:Arial;
    background-color :#191719;
    padding: 25px; 
    line-height: 1.5;
}

header{ 
    margin-bottom: 12px; 
    font-weight: 650;
    border-bottom: 1px solid #888a8d;
    } 
h1{
        margin: 0 0 8px 0; 
        font-size: 38px;
        color: #535f6e;
        text-shadow: 0px 0px 8px #000000;
}

    .odevsubtitle{
    font-size:18px;
    color:#5b6867fa;
    font-family:Arial;
    margin: 8px 0px;
}
    

.odevheader{
    margin-left: auto;
    margin-right: auto;
    border: 3px solid #546c7254;
    border-radius: 65px;
    background: linear-gradient(135deg, rgba(88, 89, 90, 0.438), rgba(53, 54, 54, 0.548));
    padding: 12px 15px;
    margin-bottom: 18px;
    width: 375px;
    transform : rotateX(8deg);
    transition : all 0.5s ease;
    box-shadow: 0px 3px 18px rgba(255, 255, 255, 0.377);
}

@keyframes header-hover-glow {
    0% { 
        box-shadow: 0px 3px 25px rgba(135, 139, 139, 0.37);
        border-color: #3d3c3c;
    }
    100% { 
        box-shadow: 0px 3px 25px rgb(156, 158, 158);
        border-color: #9395969c;
    }
}

.odevheader:hover{
    border: 3px solid #000000;
    background: linear-gradient(135deg, rgba(127, 128, 129, 0.438), rgba(92, 94, 94, 0.548));
    box-shadow: 0px 3px 18px rgb(0, 0, 0);
    transform: rotateX(0deg) scale(1.03);
    animation: header-hover-glow 5s infinite alternate;
}

main{
    padding-top: 15px;
}

@keyframes odev-glow {
    0% { 
        box-shadow: 0px 2px 21px rgba(47, 45, 49, 0.534);
        border-color: #000000b0;
    }
    100% { 
        box-shadow: 0px 2px 32px rgba(255, 255, 255, 0.877);
        border-color: #999393de;
    }
}

.odevler-box{
    border: 3px solid #6d6d6d94;
    font-weight: 550;
    font-family:Arial;
    border-radius: 32px;
    background: linear-gradient(135deg, rgba(88, 89, 90, 0.438), rgba(53, 54, 54, 0.548));
    padding: 20px 30px 20px 30px;
    margin-top: 3px;
    margin-bottom: 8px;
    margin-left: auto;
    margin-right: auto;
    width: 250px;
    box-shadow: 0px 5px 20px rgba(7, 156, 167, 0.315);
    animation: odev-glow 3s infinite alternate;
}

.odev1-boxes{
    border: 3px solid #6d6d6d94;
    font-weight: 550;
    font-family:Arial;
    border-radius: 32px;
    background: linear-gradient(135deg, rgba(88, 89, 90, 0.438), rgba(53, 54, 54, 0.548));
    padding: 20px 30px 20px 30px;
    margin-top: 3px;
    margin-bottom: 8px;
    margin-left: auto;
    margin-right: auto;
    width: 1700px;
    box-shadow: 0px 5px 20px rgba(7, 156, 167, 0.315);
    animation: odev-glow 3s infinite alternate;
}

.odev1-box{
    border: 3px solid #6d6d6d94;
    font-weight: 550;
    font-family:Arial;
    border-radius: 32px;
    background: linear-gradient(135deg, rgba(88, 89, 90, 0.438), rgba(53, 54, 54, 0.548));
    padding: 20px 30px 20px 30px;
    margin-top: 3px;
    margin-bottom: 8px;
    margin-left: auto;
    margin-right: auto;
    width: 350px;
    box-shadow: 0px 5px 20px rgba(7, 156, 167, 0.315);
    animation: odev-glow 3s infinite alternate;
}

.odevler-title{
    font-size:35px;
    color:#d8dddf;
    margin: 8px 0px;
    text-shadow: 0px 2px 5px #000000;
}

.odevler{
    font-size:15px;
    color:#ccc1c1d5;
    margin-top: 8px;
    margin-bottom: 8px;
    margin-left: 4px;
    margin-right: 4px;
    text-shadow: 0px 2px 5px #000000;
    border-left: 3px solid #00000052;
    padding-left : 7px;
}

.odevler-footer {
    text-align: center;
    font-weight: 600;
    margin-top: 60px;
    padding: 12px 0px;
    border-top: 1px solid #676868;
    font-size: 12px;
    color: #6b6a6ae3;
} 

.odev-yerisaret{
    font-size:20px;
    color:#d5d9da;
    margin-top: 8px;
    margin-bottom: 8px;
    text-shadow: 0px 2px 5px #000000;
    font-weight: 600;
}

.odev1-images{
    width: 450px;
    height: 250px;
    margin-left:15px;
    margin-right:15px;
    margin-top: 8px;
    margin-bottom: 8px;
}

.odev-yeregit{
    font-size:14px;
    color:#767b7c;
    margin-top: 8px;
    margin-bottom: 8px;
    margin-left: 12px;
    margin-right: 12px;
    text-shadow: 0px 2px 5px #000000;
    font-weight: 600;
}