:root {
    --p-100: #cbe6ff;
    --p-70: #00b7fd;
    --p-40: #00658e;
    --p-20: #00344c;
    --p-08: #001a28;

    --s-100: #ffd9e1;
    --s-70: #ff85a6;
    --s-40: #bb0057;
    --s-20: #66002c;
    --s-08: #380015;

    --text-light: rgb(255, 255, 255);

    --card-bg: rgba(255, 255, 255, 0.06);

    --default-gap: 12px;
    --default-padding: 12px;
    --default-card-border-radius: 12px;

    --btn-vpad: 12px;
    --btn-hpad: 16px;
    --header-hpad: 20px;
    --header-inner-height: calc(1em + 2 * var(--btn-vpad));
}

html {
    box-sizing: border-box;
    height: 100%;
    background: linear-gradient(310deg, var(--s-08), var(--p-08) 80%) no-repeat center center fixed;
}

*,
*::before,
*::after {
    box-sizing: inherit;
}

body {
    min-height: 100vh;
    margin: 0;
    padding: 0px var(--default-padding) var(--default-padding) var(--default-padding);
    font-family: Inter, system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--p-100);
    -webkit-font-smoothing: antialiased;

    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.wrap {
    width: 100%;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--default-padding) 0;
    position: sticky;
    top: 0;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.logo {
    font-weight: 800;
    display: flex;
    gap: var(--default-gap);
    align-items: center;
    font-size: 1.5em;
}

.logo img {
    display: block;
    width: auto;
    object-fit: contain;
    height: var(--header-inner-height);
    max-height: 100%;
}

.logo a {
    text-decoration: none;
}

nav a {
    padding: var(--btn-vpad) var(--btn-hpad);
    line-height: 1;
    font-size: inherit;
}

.glass {
    background: linear-gradient(180deg, rgba(from var(--p-20) r g b / 0.16), rgba(from var(--p-20) r g b / 0.12));
    padding: 20px;
    border-radius: var(--default-card-border-radius);
    border: 1px solid rgba(from var(--p-20) r g b / 0.06);
}

header.glass {
    padding: var(--header-hpad);
    border-top-left-radius: 0px;
    border-top-right-radius: 0px;
    background: none;
}

.btn {
    padding: var(--btn-vpad) var(--btn-hpad);
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 700;
}

a.btn {
    text-decoration: none;
}

a {
    color: inherit;
}

.btn_primary {
    background: var(--p-40);
    color: var(--p-100);
}

.btn_secondary {
    background: var(--s-40);
    color: var(--s-100);
}

.center_text {
    text-align: center;
}

.action_buttons_wrapper {
    display: flex;
    gap: var(--default-gap);
    align-items: center;
    justify-content: center;
}

.main_card {
    padding: var(--default-padding);
    min-height: calc(100lvh - var(--main-card-top-offset, 0px));
    min-height: calc(100dvh - var(--main-card-top-offset, 0px));
    min-height: calc(100vh - var(--main-card-top-offset, 0px));
    display: flex;
    flex-direction: column;
    align-items: center;
}

.main_card_content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.main_title {
    width: 70%;
}

h1.main_title {
    display: inline-block;
    white-space: nowrap;
    font-size: clamp(16px, 8vw, 12vh);
    margin: 0;
}

.main_card_content>h2 {
    font-size: max(16px, 30%);
}

.inner_card {
    padding: var(--default-padding);
    border-radius: var(--default-card-border-radius);
    background-color: var(--card-bg);
    height: 100%;
}

footer {
    text-align: center;
}

.about {
    display: grid;
    gap: var(--default-gap);
    padding: var(--default-padding) 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width:940px) {
    .about {
        grid-template-columns: 1fr
    }
}

@media (max-width:650px) {
    nav.action_buttons_wrapper {
        display: none;
    }
}

@media (max-width:300px) {
    .main_card_content>h2 {
        font-weight: normal;
    }
}

#background_canvas {
    width: 100vw;
    height: 100vh;
    position: fixed;
    top: 0;
    z-index: -10;
}

.animate_highlight {
    animation-name: fade_to_light_secondary;
    animation-duration: 2s;
}

@keyframes fade_to_light_secondary {
    0% {
        color: currentColor;
    }

    50% {
        color: var(--s-100);
    }

    100% {
        color: currentColor;
    }
}

.anchor {
    display: block;
    height: var(--main-card-top-offset);
    margin-top: calc(var(--main-card-top-offset) * -1);
    visibility: hidden;
}