@font-face {
    font-family: BaseOneHeavy;
    src: url(../fonts/BaseOne-Heavy.otf);
    font-display: swap;
}
/* Atkinson Hyperlegible: Copyright 2020 Braille Institute of America, Inc.
   Lizenz: SIL Open Font License 1.1, https://openfontlicense.org */
@font-face {
    font-family: Atkinson;
    src: url(../fonts/atkinson-hyperlegible-400.woff2) format("woff2");
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: Atkinson;
    src: url(../fonts/atkinson-hyperlegible-700.woff2) format("woff2");
    font-weight: 700;
    font-display: swap;
}

/* Das Studio ist nur Schwarz und Weiß. Farbe kommt allein aus den Projekten. */
:root{
    --paper: #fff;
    --ink: #000;
    --muted: #5c5c5c;
    --gutter: clamp(16px, 4vw, 56px);
    --display: BaseOneHeavy, "Arial Black", sans-serif;
    --body: Atkinson, Arial, Helvetica, sans-serif;

    --stone: #2e2c29;
    --blood: #c8181e;
    --bone: #e9e2cc;
    --nomYellow: #feda0a;
    --nomInk: #12141c;

    /* Breite eines zugeklappten Feldes, wie ein Buchrücken */
    --spine: clamp(96px, 11vw, 168px);
    --footerHeight: 86px;
    --ease: cubic-bezier(0.7, 0, 0.2, 1);
}
@media (prefers-color-scheme: dark){
    :root{
        --paper: #000;
        --ink: #fff;
        --muted: #a3a3a3;
    }
}

*, *::before, *::after{
    box-sizing: border-box;
}
body{
    margin: 0;
    background-color: var(--paper);
    color: var(--ink);
    font-family: var(--body);
    font-size: 1.125rem;
    line-height: 1.55;
}
a{
    color: inherit;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;
}
a:hover{
    text-decoration-thickness: 3px;
}
a:focus-visible,
button:focus-visible{
    outline: 3px solid currentColor;
    outline-offset: 4px;
}
img{
    display: block;
    max-width: 100%;
    height: auto;
}
h1, h2{
    font-family: var(--display);
    font-weight: normal;
    margin: 0;
}
h1:focus, h2:focus{
    outline: none;
}

/* Buch: drei Felder, eines ist aufgeschlagen */
.panel--studio{
    background-color: var(--paper);
    color: var(--ink);
}
.panel--arthengard{
    background-color: var(--stone);
    color: var(--bone);
}
.panel--nomnomlog{
    background-color: var(--nomYellow);
    color: var(--nomInk);
}
.panelCover{
    display: none;
}
.panelInner{
    padding: clamp(40px, 6vw, 72px) var(--gutter);
}

/* Firma */
.panel--studio .panelInner{
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.wordmark{
    /* BaseOne ist eine Versalschrift, "INSANE STUDIOS" ist etwa 4,9em breit. */
    font-size: clamp(2.5rem, 7vw, 7rem);
    line-height: 0.9;
    letter-spacing: -0.01em;
}
.intro{
    max-width: 40rem;
    margin: clamp(20px, 3vw, 36px) 0 0;
}
.sectionTitle{
    font-size: clamp(1.5rem, 2.6vw, 2rem);
    line-height: 1;
    margin-top: clamp(36px, 5vw, 64px);
}
.projectPicker{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 28px;
    margin-top: 16px;
    font-weight: 700;
    font-size: 1.2rem;
}

/* Projekte */
.projectImage{
    width: clamp(120px, 14vw, 180px);
    margin-bottom: 28px;
}
.panel--nomnomlog .projectImage,
.panel--nomnomlog .panelCover img{
    border-radius: 22%;
    box-shadow: 0 0 0 3px var(--nomInk);
}
.panel--arthengard h2,
.panel--nomnomlog h2{
    font-size: clamp(2rem, 3.6vw, 3.25rem);
    line-height: 0.95;
}
.projectState{
    font-weight: 700;
    margin: 0.6rem 0 1.2rem;
}
.panel--arthengard p,
.panel--nomnomlog p{
    max-width: 32rem;
    margin-top: 0;
}
.projectLinks{
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
    margin-top: 1.6rem;
}
.projectButton{
    font-family: var(--display);
    font-size: 1.35rem;
    letter-spacing: 0.02em;
    text-decoration: none;
    padding: 0.7rem 1.1rem 0.6rem;
    background-color: var(--blood);
    color: #fff;
}
.projectButton:hover{
    text-decoration: underline;
    text-decoration-thickness: 2px;
}

/* Aufklappen, nur mit JavaScript. Ohne JavaScript stehen alle Felder offen untereinander. */
.js .panel{
    position: relative;
    overflow: hidden;
}
.js .panelCover{
    display: flex;
    position: absolute;
    inset: 0;
    z-index: 1;
    width: 100%;
    align-items: center;
    justify-content: center;
    padding: 16px;
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
    cursor: pointer;
}
/* Der Buchrücken erscheint erst, wenn das Feld schon zugeklappt ist. */
.is-animated .panelCover{
    transition: opacity 250ms ease 500ms, visibility 0s linear 0s;
}
.js .panelCover:focus-visible{
    outline-offset: -10px;
}
.js .panelCover img{
    width: min(120px, calc(var(--spine) - 32px));
    transition: transform 200ms ease;
}
.js .panelCover:hover img{
    transform: scale(1.06);
}
.spineTitle{
    font-family: var(--display);
    font-size: clamp(2rem, 3.2vw, 3rem);
    line-height: 1;
    white-space: nowrap;
}
.js .is-open .panelCover{
    opacity: 0;
    visibility: hidden;
}
.is-animated .is-open .panelCover{
    transition: opacity 150ms ease, visibility 0s linear 150ms;
}
.js .panelContent{
    opacity: 0;
}
.js .is-open .panelContent{
    opacity: 1;
}
.is-animated .panelContent{
    transition: opacity 200ms ease;
}
.is-animated .is-open .panelContent{
    transition: opacity 400ms ease 350ms;
}

@media (min-width: 760px){
    .js .book{
        display: flex;
        height: max(620px, calc(100svh - var(--footerHeight)));
        container-type: inline-size;
    }
    .js .panel{
        flex: 0 0 var(--spine);
    }
    .is-animated .panel{
        transition: flex-grow 700ms var(--ease);
    }
    .js .panel.is-open{
        flex-grow: 1;
    }
    .js .panelContent{
        height: 100%;
    }
    /* Feste Breite, damit der Text beim Aufklappen nicht neu umbricht */
    .js .panelInner{
        width: calc(100cqw - 2 * var(--spine));
        height: 100%;
        overflow-y: auto;
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding-inline: clamp(32px, 5vw, 72px);
    }
    .js .panel--studio .panelInner{
        align-items: center;
    }
    .js .panel:not(.panel--studio) .panelInner{
        align-items: flex-start;
    }
    .spineTitle{
        writing-mode: vertical-rl;
        transform: rotate(180deg);
    }
}

@media (max-width: 759px){
    .js .panel{
        display: grid;
        grid-template-rows: 0fr;
        min-height: 112px;
    }
    .is-animated .panel{
        transition: grid-template-rows 600ms var(--ease);
    }
    .js .panel.is-open{
        grid-template-rows: 1fr;
    }
    .js .panelContent{
        min-height: 0;
        overflow: hidden;
    }
    .js .panelCover img{
        width: 72px;
    }
}

@media (prefers-reduced-motion: reduce){
    .is-animated .panel,
    .is-animated .panelCover,
    .is-animated .is-open .panelCover,
    .is-animated .panelContent,
    .is-animated .is-open .panelContent,
    .js .panelCover img{
        transition: none;
    }
}

/* Fuß */
/* Das Fußband bleibt in beiden Modi schwarz. */
.footer{
    background-color: #000;
    color: #fff;
    padding: 28px var(--gutter);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px 32px;
}
.footerNav{
    display: flex;
    gap: 24px;
}

/* Impressum und Datenschutz */
.legalWrapper{
    max-width: 40rem;
    margin: 0 auto;
    padding: 3rem var(--gutter) 4rem;
}
.legalWrapper h1{
    font-size: clamp(2.4rem, 8vw, 3.5rem);
    line-height: 1;
    margin: 0 0 0.4rem;
}
.legalWrapper h2{
    font-family: var(--body);
    font-weight: 700;
    font-size: 1.2rem;
    line-height: 1.3;
    margin: 2.2rem 0 0.8rem;
}
.legalWrapper p{
    margin: 0 0 1em 0;
}
.backLink{
    display: inline-block;
    margin-bottom: 2rem;
}