* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    background-color: #000;
    color: #fff;
    font-family: "Figtree";
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1rem 2rem;
    background: rgba(0, 0, 0, 0.72);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.site-logo {
    color: #f5f5f5;
    font-size: 1.25rem;
    font-weight: 750;
    letter-spacing: -0.03em;
    white-space: nowrap;
    text-decoration: none;
}

.site-logo:hover {
    color: #fff;
}

.nav ul {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 0.35rem;
    margin: 0;
    padding: 0;
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 999px;
    padding: 0.35rem;
}

.nav li {
    display: flex;
}

.nav a {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 0 0.85rem;
    color: rgba(255, 255, 255, 0.62);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 400;
    line-height: 1;
    border-radius: 999px;

    transition:
        color 150ms ease,
        background 150ms ease,
        transform 150ms ease;
}

.nav a:hover {
    color: #f5f5f5;
    background: rgba(255, 255, 255, 0.075);
}

.nav a:active {
    transform: scale(0.97);
}

.nav a.active {
    color: #111;
    background: #f0f0f0;
}

.nav a.active:hover {
    color: #111;
    background: #fff;
}

.nav a:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.45);
    outline-offset: 3px;
}

.tutorials-page-header {
    max-width: 820px;
    margin: 3rem auto 2.75rem;
    padding: 0 2rem;
    text-align: center;
}

.tutorials-page-kicker {
    margin: 0 0 0.75rem;
    color: #9f9f9f;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.tutorials-page-header h1 {
    margin: 0;
    color: #f5f5f5;
    font-size: clamp(2.4rem, 5vw, 4.5rem);
    font-weight: 750;
    line-height: 0.95;
    letter-spacing: -0.06em;
}

.tutorials-page-header>p:last-child {
    max-width: 620px;
    margin: 1.15rem auto 0;
    color: #b6b6b6;
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    font-weight: 500;
    line-height: 1.65;
}

.tutorial-filters {
    max-width: 1480px;
    margin: 0 auto 1.5rem;
    padding: 0 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.filter-row {
    display: grid;
    grid-template-columns: 110px 1fr;
    align-items: start;
    gap: 1rem;
}

.filter-label {
    color: #9f9f9f;
    font-size: 0.9rem;
    font-weight: 700;
    padding-top: 0.45rem;
}

.filter-chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-chip,
.filter-reset {
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: #171717;
    color: #bdbdbd;
    border-radius: 999px;
    font: inherit;
    font-size: 0.95rem;
    font-weight: 650;
    line-height: 1;
    padding: 0.55rem 0.85rem;
    cursor: pointer;
    transition:
        background 150ms ease,
        border-color 150ms ease,
        color 150ms ease,
        transform 150ms ease;
}

.filter-chip:hover,
.filter-reset:hover {
    color: #f0f0f0;
    border-color: rgba(255, 255, 255, 0.28);
    background: #202020;
}

.filter-chip:focus-visible,
.filter-reset:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.35);
    outline-offset: 2px;
}

.filter-chip.is-active {
    background: #f0f0f0;
    border-color: #f0f0f0;
    color: #111;
}

.filter-chip.is-active:hover {
    background: #fff;
    border-color: #fff;
    color: #111;
}

.filter-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 0.25rem;
}

.filter-results {
    margin: 0;
    color: #928f8f;
    font-size: 0.95rem;
}

.filter-reset {
    background: transparent;
}

.badge-card.is-hidden {
    display: none;
}

@media (max-width: 720px) {
    .filter-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .filter-label {
        padding-top: 0;
    }

    .filter-footer {
        align-items: flex-start;
        flex-direction: column;
    }
}

.badge-card.is-hidden {
    display: none;
}

::selection {
    background-color: #fff;
    color: #000;
}

.nav-toggle {
    display: none;
}

:root {
    --ink: #f4f4ef;
    --paper: #080808;
    --raised: #101010;
    --soft: #151515;
    --muted: #a4a4a0;
    --quiet: #95958e;
    --accent: #ffffff;
    --line: rgba(244, 244, 239, .18);
    --line-strong: rgba(244, 244, 239, .38);
    --page: 1480px;
    --gutter: clamp(1.25rem, 4vw, 4rem);
    --space: clamp(4rem, 8vw, 8.5rem);
    --ease: cubic-bezier(.16, 1, .3, 1)
}

html {
    background: var(--paper);
    color-scheme: dark;
    scroll-behavior: smooth
}

body {
    min-width: 320px;
    overflow-x: hidden;
    background: var(--paper) !important;
    color: var(--ink);
    font-family: "Figtree", sans-serif;
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: .22;
    background-image: linear-gradient(to right, transparent calc(50% - .5px), rgba(255, 255, 255, .035) 50%, transparent calc(50% + .5px)), linear-gradient(to right, transparent calc(25% - .5px), rgba(255, 255, 255, .018) 25%, transparent calc(25% + .5px)), linear-gradient(to right, transparent calc(75% - .5px), rgba(255, 255, 255, .018) 75%, transparent calc(75% + .5px))
}

img {
    max-width: 100%
}

button,
input,
textarea,
select {
    font: inherit
}

a {
    color: inherit
}

::selection {
    background: var(--ink);
    color: var(--paper)
}

:focus-visible {
    outline: 1px solid var(--ink) !important;
    outline-offset: 5px !important
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    min-height: 76px;
    display: grid;
    grid-template-columns: minmax(180px, 1fr) auto;
    align-items: center;
    gap: 2rem;
    padding: 0 var(--gutter);
    background: rgba(8, 8, 8, .92);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px)
}

.site-header::after {
    content: "GAME ASSETS / CODE";
    position: absolute;
    left: var(--gutter);
    bottom: 7px;
    color: var(--quiet);
    font: 400 .58rem "IBM Plex Mono", monospace;
    letter-spacing: .11em;
    pointer-events: none
}

.site-logo {
    position: relative;
    width: fit-content;
    padding-bottom: 6px;
    color: var(--ink);
    font-size: 1.06rem;
    font-weight: 750;
    letter-spacing: -.025em;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap
}

.nav ul {
    display: flex;
    align-items: center;
    gap: 0;
    margin: 0;
    padding: 0;
    border: 0;
    border-left: 1px solid var(--line);
    border-radius: 0;
    background: none;
    list-style: none
}

.nav li {
    display: flex
}

.nav a {
    position: relative;
    min-height: 75px;
    display: inline-flex;
    align-items: center;
    padding: 0 clamp(.75rem, 1.4vw, 1.35rem);
    border-right: 1px solid var(--line);
    border-radius: 0;
    color: var(--muted);
    font: 400 clamp(.66rem, .75vw, .76rem) "IBM Plex Mono", monospace;
    letter-spacing: .035em;
    line-height: 1.2;
    text-decoration: none;
    text-transform: uppercase;
    transition: color .18s, background .18s
}

.nav a::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: -1px;
    left: 0;
    height: 2px;
    background: var(--ink);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .32s var(--ease)
}

.nav a:hover,
.nav a.active,
.nav a.active:hover {
    background: rgba(255, 255, 255, .045);
    color: var(--ink)
}

.nav a:hover::after,
.nav a.active::after {
    transform: scaleX(1);
    transform-origin: left
}

.nav-toggle {
    display: none
}

.tutorials-page-header,
.about-page-header,
.contact-page-header {
    width: min(var(--page), 100%);
    max-width: none;
    margin: 0 auto;
    padding: clamp(5.5rem, 10vw, 10rem) var(--gutter) clamp(3.25rem, 6vw, 5.5rem);
    text-align: left
}

.tutorials-page-header h1,
.about-page-header h1,
.contact-page-header h1 {
    max-width: 12ch;
    margin: 0;
    color: var(--ink);
    font-size: clamp(3.25rem, 8.6vw, 8.25rem);
    font-weight: 520;
    letter-spacing: -.075em;
    line-height: .84;
    text-wrap: balance
}

.tutorials-page-header>p:last-child,
.about-page-header>p:last-child,
.contact-page-header>p:last-child {
    max-width: 620px;
    margin: clamp(1.75rem, 4vw, 3rem) 0 0 auto;
    padding-left: 1rem;
    border-left: 1px solid var(--line-strong);
    color: var(--muted);
    font-size: clamp(1rem, 1.35vw, 1.2rem);
    font-weight: 420;
    line-height: 1.65
}

.filter-results {
    width: min(var(--page), 100%);
    margin: 0 auto 1.5rem;
    padding: 0 var(--gutter);
    color: var(--quiet);
    font: 400 .72rem "IBM Plex Mono", monospace;
    letter-spacing: .08em;
    text-transform: uppercase
}

.filter-results:empty {
    display: none
}

@media(max-width:980px) {
    .site-header {
        grid-template-columns: auto auto;
        min-height: 68px
    }

    .site-header::after {
        display: none
    }

    body.is-nav-open {
        overflow: hidden
    }

    .site-logo {
        z-index: 1003;
        padding: 0
    }

    .nav-toggle {
        position: relative;
        z-index: 1003;
        width: 46px;
        height: 46px;
        display: inline-flex;
        align-items: center;
        justify-self: end;
        justify-content: center;
        flex-direction: column;
        gap: 6px;
        padding: 0;
        border: 1px solid var(--line);
        border-radius: 50%;
        background: transparent;
        cursor: pointer
    }

    .nav-toggle span {
        width: 18px;
        height: 1px;
        display: block;
        background: var(--ink);
        transition: transform .22s var(--ease), opacity .18s
    }

    .site-header.is-nav-open .nav-toggle span:nth-child(1) {
        transform: translateY(7px) rotate(45deg)
    }

    .site-header.is-nav-open .nav-toggle span:nth-child(2) {
        opacity: 0
    }

    .site-header.is-nav-open .nav-toggle span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg)
    }

    .nav {
        position: fixed;
        inset: 0;
        z-index: 1002;
        width: 100vw;
        height: 100vh;
        display: grid;
        align-items: end;
        padding: 7rem var(--gutter) 3rem;
        background: var(--paper);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-12px);
        transition: opacity .18s, visibility .18s, transform .32s var(--ease)
    }

    .site-header.is-nav-open .nav {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: none
    }

    .nav::before {
        content: "AROUND THE SITE";
        position: absolute;
        top: 8rem;
        left: var(--gutter);
        color: var(--quiet);
        font: 400 .7rem "IBM Plex Mono", monospace;
        letter-spacing: .12em
    }

    .nav ul {
        width: 100%;
        display: block;
        border: 0;
        border-top: 1px solid var(--line);
        background: none
    }

    .nav li {
        display: block
    }

    .nav a {
        width: 100%;
        min-height: auto;
        display: flex;
        justify-content: space-between;
        padding: .52rem 0;
        border: 0;
        border-bottom: 1px solid var(--line);
        background: transparent !important;
        color: var(--muted);
        font: 500 clamp(2rem, 8vw, 4rem)/1 "Figtree", sans-serif;
        letter-spacing: -.055em;
        text-transform: none
    }

    .nav a::after {
        content: "\2197";
        position: static;
        width: auto;
        height: auto;
        background: none;
        color: var(--quiet);
        font: 400 .9rem "IBM Plex Mono", monospace;
        transform: none
    }

    .nav a:hover,
    .nav a.active {
        color: var(--ink)
    }
}

@media(max-width:620px) {

    .tutorials-page-header,
    .about-page-header,
    .contact-page-header {
        padding-top: 4.5rem
    }

    .tutorials-page-header h1,
    .about-page-header h1,
    .contact-page-header h1 {
        font-size: clamp(3rem, 17vw, 5rem)
    }

    .tutorials-page-header>p:last-child,
    .about-page-header>p:last-child,
    .contact-page-header>p:last-child {
        margin-left: 0
    }
}

@media(prefers-reduced-motion:reduce) {
    html {
        scroll-behavior: auto
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important
    }
}

/* Keep the shared header attached to the viewport, outside its include wrapper. */
#site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header {
    position: relative;
}

.nav a::after {
    background: var(--accent);
}

.nav a.active {
    color: var(--accent);
}

@media (min-width: 981px) {
    .nav ul {
        border-left: 0;
    }

    .nav a {
        border-right: 0;
    }
}