* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    /* cursor: none; */
}

.backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 35px;
    height: 35px;
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid #ffffff;
    border-radius: 50%;
    font-size: 15px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    display: flex;
    padding: 0;
    box-sizing: border-box;
    color: #ffffff;
}

.kursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: border-color 0.2s ease;
}

.loader {
    background-color: black;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.75s, visibility 0.75s;
}

.loader-hidden {
    opacity: 0;
    visibility: hidden;
}

.loader::after {
    content: "";
    width: 75px;
    height: 75px;
    border: 15px solid #a3bbc8;
    border-top-color: #f4f1de;
    border-radius: 50%;
    animation: loading 0.75s ease infinite;
}

@keyframes loading {
    from {
        transform: rotate(0turn);
    }
    to {
        transform: rotate(1turn);
    }
}

#git_link {
    position: sticky;
    top: 0;
    background-color: #0a0a23;
    color: white;
    width: 100%;
    text-align: center;
}

/* =============== scrollbar ======================== */
.scrollbar {
    height: 200vh;
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background-color: rgba(0, 0, 0, 0.553);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background-color: #ff0000;
    border-radius: 10px;
}
/* =============== scrollbar ======================== */

header {
    background: linear-gradient(
            to top,
            rgba(0, 0, 0, 0.5) 50%,
            rgba(0, 0, 0, 0.5) 50%
        ),
        url(../image/cover.jpg);
    padding: 20px;
}

header nav ul {
    list-style-type: none;
    display: flex;
    justify-content: space-between;
}

header nav ul li {
    margin-left: 5px;
}

header nav ul li a {
    letter-spacing: 2px;
    font-size: 20px;
    font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS",
        sans-serif;
    position: fixed;
    color: #c5ab00;
    -webkit-text-stroke: 1px #f4f1de;
    text-decoration: none;
}

/* prompt animation change hobe */
.prompt {
    background: linear-gradient(0deg, #274653, #60727c);
    color: #9dff70;
    font-size: 30px;
    padding: 40px;
    border-radius: 10px;
    margin: 20px;
    text-align: center;
    animation: pulse 2s infinite;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
}

.prompt a {
    color: #ffcc00;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s, text-shadow 0.3s;
}

.prompt a:hover {
    color: #ff9900;
    text-shadow: 0 0 5px rgba(255, 153, 0, 0.8), 0 0 10px rgba(255, 153, 0, 0.8);
}

/* feedback animation change hobe */
.feedback {
    background: linear-gradient(0deg, #274653, #60727c);
    color: #9dff70;
    font-size: 30px;
    padding: 20px;
    border-radius: 10px;
    margin: 5px;
    text-align: center;
    animation: pulse 5s infinite;
    letter-spacing: 2px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
}

.feedback a {
    color: #ffcc00;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s, text-shadow 0.3s;
}

.feedback a:hover {
    color: #ff9900;
    text-shadow: 0 0 5px rgba(255, 153, 0, 0.8), 0 0 10px rgba(255, 153, 0, 0.8);
}

/* animation for both feedback and prompt */
/* should be change each time */
@keyframes pulse {
    0% {
        transform: scale(0.92);
        box-shadow: 0 0 5px rgba(36, 63, 77, 0.5),
            0 0 15px rgba(163, 187, 200, 0.5);
    }
    50% {
        transform: scale(1);
        box-shadow: 0 0 10px rgba(36, 63, 77, 0.7),
            0 0 30px rgba(163, 187, 200, 0.7);
    }
    100% {
        transform: scale(0.92);
        box-shadow: 0 0 5px rgba(36, 63, 77, 0.5),
            0 0 15px rgba(163, 187, 200, 0.5);
    }
}

button {
    letter-spacing: 2px;
    font-size: 18px;
    font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS",
        sans-serif;
    color: #c5ab00;
    -webkit-text-stroke: 0.8px #f4f1de;
    text-decoration: none;
    background: none;
}

.folder-box {
    width: 360px;
    height: 34px;
    border: 1px solid #a3bbc8;
    border-radius: 5px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    cursor: pointer;
    margin: 30px 20px;
    margin-top: 18px;
    margin-bottom: 18px;
    box-shadow: 0 3px 4px rgba(0, 0, 0, 0.5);
}

.folder-box:hover {
    /* width: 368px;
    height: 36px; */
    transition: 0.3s ease;
    background-color: #a3bbc8;
    border: 1px solid rgb(255, 255, 255);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
}

.folder-box:hover h3 {
    font-weight: bold;
    color: rgb(41, 41, 41);
    transition: 0.3s ease;
}

h1 {
    font-size: 100px;
    text-align: center;
    margin-top: 80px;
    margin-bottom: 180px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.h1-con {
    display: flex;
    justify-content: center;
    background: linear-gradient(
            to top,
            rgba(0, 0, 0, 0.5) 50%,
            rgba(0, 0, 0, 0.5) 50%
        ),
        url(../image/cover.jpg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    color: #a3bbc8;
}

h2 {
    /* font-family: Cav; */
    font-size: 27px;
    text-align: center;
    margin-top: 36px;
    margin-bottom: 36px;
    color: #000000;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.h2-con {
    display: flex;
    justify-content: center;
    background-color: #a3bbc8;
}

h3 {
    font-size: 18px;
    color: #a3bbc8;
    font: 1em Sans-serif;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.button-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    background-color: #243f4d;
}

/* img {
  filter: grayscale(100%);
}

img:hover{
  filter: grayscale(0%);
  transition: 1s;
} */

.social {
    background-color: #a3bbc8;
    padding: 30px;
    text-align: center;
    display: flex;
    gap: 35px;
    justify-content: center;
}

.social a {
    font-size: 30px;
    font: Arial;
    text-align: center;
    color: #ff0000;
    display: inline-block;
    text-decoration: none;
}

.social img {
    width: 30px;
    height: 30px;
}

.footer {
    background-color: #243f4d;
    padding: 20px;
    text-align: center;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.footer p {
    font-size: 23px;
    margin: 15px;
    font: Arial;
    text-align: center;
    color: #f4f1de;
}

@media screen and (max-width: 768px) {
    .folder-box {
        width: 300px;
        height: 28px;
        font-size: 16px;
    }
    h1 {
        font-size: 60px;
        margin-top: 40px;
        margin-bottom: 100px;
    }
    h2 {
        font-size: 20px;
        margin-top: 24px;
        margin-bottom: 24px;
    }
    .footer {
        padding: 10px;
    }
    .footer p {
        font-size: 18px;
        margin: 10px;
    }
}