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

body {
font-family: nunito;
line-height: 1.6;
background-color: #171717;
}

/* Üst Menü */
header {
background-color: #353535;
padding: 10px 0;
position: relative;
box-shadow: inset 0px -6px 0px rgb(0 0 0 / 10%);
height: 65px;
}

header .logo{
height: 40px;
position: absolute;
top: 12px;
left: 10px;
color: #ffffff;
font-size: 26px;
font-weight: 900;
text-align: center;
border-radius: 6px;
padding: 0 20px;
text-transform: uppercase;
line-height: 44px;
}


header nav ul {
display: flex;
justify-content: right;
list-style-type: none;
margin-right: 10px;
margin-top: 11px;
}

header nav ul li {
margin: 0 3px;

 
}

header nav ul li a {
color: #ffffff;
text-decoration: none;
font-size: 16px;
font-weight: 700;
letter-spacing: 0px;
background: #171717;
padding: 4px 13px;
border-radius: 4px;
}

header nav ul li a:hover {
text-decoration: none;
background: #ffffff;
color: #000000;
}

.axe1 {width: 970px;height: 250px;margin: 20px auto;text-align: center;line-height: 250px;font-size: 24px;color: #fff;display: grid;align-items: center !important;justify-content: center;!i;!;}



.article-container {
width: 90%;
margin: 20px auto;
background: #232323;
padding: 30px;
color: #b3b3b3;
border-radius: 8px;
box-shadow: 0 4px 8px rgb(0 0 0 / 19%);
max-width: 970px;
}

button {
padding: 10px 20px;
font-size: 22px;
color: #000000;
background-color: #f3ff37;
border: none;
cursor: pointer;
font-family: 'Nunito';
margin: 0 auto;
border-radius: 40px;
display: grid;
justify-content: center;
font-weight: 800;
box-shadow: inset 0px -6px 0px rgb(0 0 0 / 10%);
letter-spacing: 0px;
}

button:hover {
background-color: #69ff41;
color: #222;
}


.lessons-grid {display: grid;grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));gap: 15px;padding: 0;width: 90%;margin: 20px auto !important;max-width: 980px;}



.lesson-item:hover {
transition: transform 0.23s;
transform: scale(1.1);
transition: .12s all;
}

.lesson-item img {width: 100%;height: 100%;box-shadow: 0 4px 8px rgb(0 0 0 / 19%);border-radius: 10px;}

.lesson-item a {
text-decoration: none;
color: #333;
padding: 0;
display: block;
font-weight: bold;
}
.lesson-item {
border-radius: 0;
text-align: center;
transform: scale(1);
transition: .2s all;
}
.lesson-item {
opacity: 0;  
animation: fadeIn 0.5s forwards;  
}

@keyframes fadeIn {
to {
opacity: 1;  
}
}

#icons-container{margin: 0 auto;display: grid;width: 100%;grid-auto-flow: column;justify-content: center;grid-gap: 15px;margin-top: 20px;}


#settings-btn{
background: #fff041;
color: #171717;
font-weight: 700;
letter-spacing: 0px;
}
#settings-btn:hover{
background: #ffffff;
color: #000000;
}


#iframeContainer {
display: none;
position: fixed;
top: 0;
left: 0;
background: #fff;
width: 100%;
height: 100%;
z-index: 1000;
justify-content: center;
align-items: center;
}
#iframeContainer iframe {
width: 100%;
height: 100%;
border: none;
}
#closeButton {position: absolute;top: 10px;right: 10px;padding: 4px 15px !important;background-color: #ff0000;color: #ffffff;cursor: pointer !important;border: none;font-size: 18px;border-radius: 30px !important;height: 40px;line-height: 29px;}



.axe2{
     padding: 10px;
     border-radius: 10px;
     text-align: center;
     display: grid;
     align-items: center;
     color: #666;
     width: 300px;
     height: 280px;
     margin:  0 auto;
}


.swal2-close{
    box-shadow: none;
    position: absolute;
    top: 0;
    right: 0;
}



.icon-container:hover{
    background: #fdff9d;
}
.icon-container{
	display: inline-block;
	text-align: center;
	cursor: pointer;
	background: #f5f5f5;
	padding: 15px 10px;
	min-width: 150px;
	border-radius: 6px;
	box-shadow: inset -2px -6px 0px 0px rgb(0 0 0 / 3%);
}
.swal2-title{
    font-weight: 800;
}
.icon-title{
    font-weight: 700;
    font-size: 16px;
}