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

html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Martian Mono', monospace;
    line-height: 1.6;
    color: #1f5839;
    background-color: #ffffff;
    font-size: 15px;
}


header img {
    max-width: 100%;
    height: auto;
    justify-content: center;
}

header h1 {
    font-size: 50px;
    margin-bottom: 70px;
}

nav {
    background-color: #1927e4;
    display: flex;
    justify-content: space-between;
    padding: 1rem 2rem;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 3px solid #3e2c8f;
}

nav ul {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 3rem;
}

nav ul li a {
    text-decoration: none;
    font-size: 18px;
    color: #ffffff;
    font-weight: 800;
    padding: 1px 0;
    transition: all 300ms;
    border-bottom: 1px solid rgba(255, 251, 0, 0);
}

nav ul li a:hover {
    color: rgb(255, 251, 0);
    border-bottom: 1px solid rgb(255, 251, 0);
}

nav ul img {
    width: 70px;
    margin-left: 780px;
}

section {
    padding: 20px;
    margin-top: 80px;
}

.ngulix-section {
    margin-bottom: 5px;
    padding: 0px 80px;
    font-size: 15px;
    padding-top: 100px
}

.ngulix-section img {
    max-width: 100%;
    height: auto;
    margin-right: 20px;
    justify-content: center;
}

.kaukasoid-section,
.mongoloid-section,
.negroid-section {
    padding: 10px 80px;
    background-color: #ffffff;
}

.mongoloid-section img,
.kaukasoid-section img,
.negroid-section img {
    max-width: 2%;
    height: auto;
    margin-right: 20px;
    justify-content: center;
}

.humanace-content {
    font-size: 15px;
    padding: 50px 50px;
    border: 1px solid #ff9100;
    border-radius: 50px;
    margin-bottom: 40px;
}

.kenalix-section {
    padding: 80px 80px 0;
    padding-bottom: 100px;
    background-color: #ffffff;
    font-size: 15px;
    border: 1px solid #ff9100;
    border-radius: 250px;
}

.kotak-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.kotak {
    background-color: #c9d3ff6c;
    color: #000000;
    padding: 20px;
    border-radius: 10px;
    width: 100%;
    text-decoration: none;
    border: 2px solid #94a193;
    display: flex;
    align-items: center;
}

.kotak img {
    max-width: 15%;
    height: auto;
    margin-right: 20px;
}

.kotak h3 {
    font-size: 23px;
    margin-bottom: 10px;
    text-align: left;
}

.kotak p {
    flex: 1;
    font-size: 12px;
    line-height: 1.4;
}

.btn {
    padding: 15px 40px;
    border: none;
    outline: none;
    color: #FFFFFF;
    cursor: pointer;
    position: relative;
    z-index: 0;
    border-radius: 12px;
    justify-content: center;
}

.btn::after {
    content: "";
    z-index: -1;
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: #9097917a;
    left: 0;
    top: 0;
    border-radius: 10px;
}

.btn::before {
    content: "";
    background: linear-gradient(45deg, #ff0000, #ff7300, #fffb00, #48ff00, #00ffd5, #002bff, #ff00cb, #ff0000);
    position: absolute;
    top: -2px;
    left: -2px;
    background-size: 600%;
    z-index: -1;
    width: calc(100% + 4px);
    height: calc(100% + 4px);
    filter: blur(8px);
    animation: glowing 20s linear infinite;
    transition: opacity .3s ease-in-out;
    border-radius: 10px;
    opacity: 1;
}

@keyframes glowing {
    0% {
        background-position: 0 0;
    }

    50% {
        background-position: 400% 0;
    }

    100% {
        background-position: 0 0;
    }
}

.btn:hover {
    opacity: 1;
}

.btn:active:after {
    background: transparent;
}

.btn:active {
    color: #000;
    font-weight: bold;
}

footer {
    color: #FFFFFF;
    background-color: #1927e4;
    text-align: center;
    padding: 10px 0;
    font-size: 12px;
}