/* Keyframes */
@keyframes inOut {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

@keyframes fadeUp {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(-100%); opacity: 0; }
}

@keyframes popDown {
    0% { transform: translateY(-100%); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

@keyframes fadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

@keyframes upSlide {
    0% { height: 100vw; }
    100% { height: 0; }
}

@keyframes downSlide {
    0% { height: 0px; }
    100% { height: 10%; }
}

@keyframes hideElement {
    0% { display: flex; }
    99% { display: flex; }
    100% { display: none; }
}

/* Body */
body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
}

/* Header */
.header {
    position: sticky;
    background-color: #c09bd800;
    overflow: hidden;
    top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transform: translateY(-100%);
}

.header-left {
    position: absolute;
}

.header-middle {
    display: flex;
    justify-content: center;
    flex: 1;
}

.header a {
    padding: 22px 48px;
    color: #C09BD8;
    text-decoration: none;
    text-align: center;
    font-family: "Poppins";
    font-size: 18px;
    transition: color 0.5s ease;
    position: relative;
}

.header a:hover {
    color: #9F84BD;
}

.header a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    height: 1px;
    width: 0;
    background-color: #9F84BD;
    transition: width 0.5s ease;
}

.header a:hover::after {
    width: 100%;
}

.logo {
    float: left;
}

/* Welcome */
.welcome {
    user-select: none;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height: 100%;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: #ffffff;
    transition: opacity 1s ease, visibility 1s ease;
}

.welcome .wh {
    font-size: 7em;
    color: #9F84BD;
    margin-bottom: 0.1em;
}

.welcome p:not(.wh) {
    animation: inOut 2s infinite;
    font-size: 3em;
    color: #C09BD8;
    margin-top: 0.2em;
}

.welcome.h .wh {
    animation: fadeUp 0.7s forwards;
}

.welcome.h p:not(.wh) {
    animation: fadeOut 0.3s forwards;
    animation-delay: 0.3s;
}

.welcome.h {
    animation: upSlide 1s forwards, hideElement 0.1s forwards;
    animation-delay: 0.6s, 1.6s;
}

/* Page */
.top-page {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 90vh; 
    width: 100vw;  
    box-sizing: border-box; 
}

.top-page p {
    font-size: 3em;
    text-align: center;
}

.top-page a {
    text-decoration: none;
    color: #EBC3DB;
    transition: color 0.5s ease;
}

.top-page a:hover {
    color: #C09BD8;
}

.about {
    display: flex;
    background-color: #E6E4CE;
    color: #613b77;
    justify-content: center;
    align-items: center;
    height: 90vh; 
    width: 100vw;  
    box-sizing: border-box; 
}

.about p {
    font-size: 3em;
    text-align: center;
}

.about a:hover {
    color: #C09BD8;
}

/* Header Active */
.header.active {
    animation: popDown 1s forwards;
    animation-delay: 1s;
}