* {
    box-sizing: border-box;
}

:root {
    --primary_background: rgb(34, 34, 34);
    --secondary_background: rgb(24, 24, 24);
    --primary_border: solid 1px rgb(90, 90, 90);
}

html {
    color: white;
    background-color: var(--primary_background);
    display: flex;
    justify-content: center;
    align-items: start;
    min-height: 100vh;
    height: fit-content;
    width: 100%;
    font-family: "Montserrat", sans-serif;
}

body {
    width: 100%;
    height: 100%;
    margin: 0px;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: visible;
}

main {
    min-height: 100vh;
    height: fit-content;
    width: 100%;
    margin: 0px;
    display: flex;
    flex-direction: column;
    justify-content: start;
    align-items: center;
    padding: 40px;
    gap: 40px;
}

title-area {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex-grow: 1;
    margin: 0px;
}

h2 {
    font-size: min(2rem, 15vw);
    font-weight: 600;
    text-align: start;
    padding: 0px;
    padding-bottom: 24px;
    margin: 0px;
}

h3 {
    font-weight: 600;
    padding: 0px;
    margin: 0px;
}

p, a {
    font-size: 14px;
    padding: 0px;
    margin: 0px;
    color: white;
}

a {
    cursor: pointer;
    text-decoration: underline;
    width: fit-content;
}

subtitle, subtitlecenter {
    text-align: start;
    width: 70%;
    font-size: 3rem;
    padding: 60px 0px;
}

subtitlecenter {
    text-align: center;
    padding: 30px 0px;
    padding-top: 60px;
}

nav {
    position: sticky;
    display: flex;
    top: 0px;
    width: 100%;
    height: fit-content;
    justify-content: center;
    align-items: end;
    align-self: flex-start;
    gap: min(40px, 10vw);
    padding: 40px;
    background-color: var(--primary_background);
    border-bottom: var(--primary_border);
    z-index: 3;
}

nav-item {
    cursor: pointer;
}

shrink, shrinkcenter {
    display: flex;
    flex-direction: column;
    width: 740px;
    align-items: start;
}

shrinkcenter {
    align-items: center;
    gap: 12px;
}

hr {
    width: 100%;
}

about {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    width: 100%;
}

card, card-filter {
    grid-column: span 1;
    background-color: var(--secondary_background);
    padding: 32px;
    border-radius: 12px;
    border: var(--primary_border);
    display: flex;
    align-items: start;
    justify-content: space-between;
    height: 100%;
    gap: 12px;
    overflow: hidden;
    position: relative;
}

card-screenshot {
    grid-column: span 1;
    background-color: var(--secondary_background);
    border-radius: 12px;
    border: var(--primary_border);
    overflow: hidden;
    height: fit-content;
    display: block;
}

card-screenshot img {
    position: static;
    display: block;
    width: 100%;
    height: 200px;
    object-fit: cover;
    opacity: 1;
    transition: opacity 0.3s ease;
}

card-screenshot img.fading {
    opacity: 0;
}

card-filter {
    position: absolute;
    align-items: center;
    inset: 0;
    width: 100%;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.3s ease, transform 0.2s ease;
    pointer-events: none;
}

card-filter.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

card-filter > h3 {
    filter: brightness(50%);
}

.overflow {
    grid-column: span 2;
    padding: 48px;
}

.underflow {
    grid-row: span 2;
}

vert {
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 2;
}

img {
    position: absolute;
    object-fit: cover;
    height: 80%;
    width: 100%;
    right: 0px;
    top: 90px;
}

#background {
    height: 200px;
    width: 200px;
    filter: brightness(50%);
    top: 40px;
    right: -60px;
}

.overflow > img {
    height: 200px;
    width: 200px;
    top: 20px;
    right: -60px;
    rotate: 15deg;
    filter: brightness(50%);
}

info, info-small {
    padding-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
    grid-column: span 2;
}

info-small {
    gap: 12px;
    align-items: center;
}

info-scroll {
    display: block;
    width: 100%;
    position: relative;
}

info-scroll info-small {
    width: 75%;
    height: 140px;
    margin: 0 auto;
    overflow: hidden;
    display: block;
}

buy {
    padding: 40px 0px;
    margin: 40px 0px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

upgrade {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;

    padding: 40px;
    gap: 12px;
    background-color: var(--secondary_background);
    border-top: var(--primary_border);
    border-bottom: var(--primary_border);
}

upgrade > p {
    width: 300px;
}

input, textarea {
    padding: 16px;
    background-color: var(--primary_background);
    border: var(--primary_border);
    border-width: 1px;
    border-radius: 12px;
    color: white;
    width: 300px;
    outline: 0px solid gray;
}

input:focus, textarea:focus {
    outline-width: 1px;
}

textarea {
    resize: vertical;
    height: 140px;
}

button {
    width: 200px;
    background-color: var(--primary_background);
    border: var(--primary_border);
    color: white;
    border-radius: 12px;
    cursor: pointer;
    padding: 12px;
    font-size: 14px;
    transition: ease-in 0.1s;
}

button:disabled {
    cursor: default;
}

button:disabled:not(#buy-now-button) {
    padding: 0px;
    font-size: 0px;
    opacity: 0%;
}

support {
    padding: 40px 0px;
}

support, smaller {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

smaller {
    gap: 0px;
}

ul {
    padding: 0px, 12px;
    margin: 8px;
}

info-small > h2 {
    padding: 0px;
}

email {
    padding: 24px 0px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

@media screen and (max-width: 768px) {
    shrink, shrinkcenter {
        width: 100%;
        padding: 28px;
    }

    subtitle {
        font-size: 5vw;
    }
}

@media screen and (max-width: 550px) {
    about {
        grid-template-columns: repeat(1, 1fr);
    }

    .overflow {
        grid-column: span 1;
    }

    .underflow {
        grid-row: span 1;
    }

    info {
        grid-column: span 1;
    }

    card-filter {
        width: 100%;
    }

    subtitle, subtitlecenter {
        font-size: 28px;
        text-align: center;
        width: 100%;
    }

    nav {
        gap: 20px;
    }

    img {
        top: 20px;
        height: 100%;
    }

    #email-input {
        width: 100%;
    }

    textarea {
        width: 100%;
    }
}