:root {
    --slide-width: min(92vw, 1280px);
    --slide-height: min(78vh, 720px);
}

body.presentation {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", var(--font);
    color: var(--text);
    background:
        radial-gradient(circle at 20% 15%, rgba(79, 182, 176, 0.16), transparent 38%),
        radial-gradient(circle at 90% 10%, rgba(58, 165, 160, 0.12), transparent 34%),
        var(--bg);

    main {
        display: grid;
        grid-template-rows: auto 1fr auto;
        min-height: 100vh;
        padding: 1.25rem;
        gap: 1rem;
    }
}


.presentation-header,
.presentation-footer {
    width: var(--slide-width);
    margin: 0 auto;
    color: var(--muted);
    font-size: 0.95rem;
}

.presentation-header,
.presentation-footer {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1rem;
}

.presentation-header-left,
.presentation-footer-left {
    justify-self: start;
}

.presentation-header-right,
.presentation-footer-right {
    justify-self: end;
}

.presentation-header-center,
.presentation-footer-center {
    justify-self: center;
}

.presentation-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--text);
    text-decoration: none;
}

.presentation-logo {
    width: 34px;
    height: 34px;
}

.presentation-menu {
    display: inline-flex;
    gap: 0.9rem;
    align-items: center;
}

.presentation-menu a,
.presentation-footer a {
    color: var(--accent);
    text-decoration: none;
}

.presentation-menu a:hover,
.presentation-footer a:hover {
    color: var(--text);
}

.deck {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 100%;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    gap: 2.2rem;
    padding: 0 4vw;
    counter-reset: slide;
    &::-webkit-scrollbar { height: 10px }
    &::-webkit-scrollbar-thumb {
        background: rgba(245, 250, 255, 0.22);
        border-radius: 999px;
    }
}


.slide {
    counter-increment: slide;
    scroll-snap-align: center;
    width: var(--slide-width);
    height: var(--slide-height);
    margin: auto;
    border: 1px solid var(--stroke);
    border-radius: calc(var(--radius) + 4px);
    background: linear-gradient(160deg, var(--panel), var(--panel-alt));
    box-shadow: var(--shadow);
    padding: clamp(1.2rem, 3vw, 2.6rem);
    display: grid;
    position: relative;
    overflow: hidden;
}

.slide::before {
    content: counter(slide, decimal-leading-zero);
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    font-size: 0.9rem;
    color: var(--muted-alt);
    letter-spacing: 0.08em;
}

.slide h1,
.slide h2,
.slide h3,
.slide p,
.slide li {
    margin-top: 0;
}

.slide-title,
.slide-final {
    place-items: center;
    text-align: center;
}

.slide-title .eyebrow,
.slide-final .eyebrow {
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.slide-title h1,
.slide-final h2 {
    font-family: "Playfair Display", serif;
    font-size: clamp(2rem, 6vw, 3.7rem);
    margin-bottom: 0.6rem;
}

.slide-title p,
.slide-final p {
    /* max-width: 40ch; */
    color: var(--muted);
    margin-inline: auto;
}

.slide-centered {
    place-items: center;
    text-align: center;
}

.slide-two-columns {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: center;
}

.slide-top-left-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto 1fr;
    gap: 1rem 1.5rem;
    align-items: start;
}

.slide-top-left-grid > h2,
.slide-top-left-grid > p {
    grid-column: 1 / -1;
    margin-bottom: 0;
}



.slide-title-top-left > h2,
.slide-title-top-left > p {
    text-align: left;
    justify-self: start;
}

.slide-title-top-right > h2,
.slide-title-top-right > p {
    text-align: right;
    justify-self: end;
}

.slide-title-top-centered > h2,
.slide-title-top-centered > p {
    text-align: center;
    justify-self: center;
}

.slide-top-left {
    align-content: start;
    justify-items: start;
    text-align: left;
    gap: 0.5rem;
}

.slide-quadrants {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto 1fr 1fr;
    gap: 1rem;
}

.slide-quadrants > h2 {
    grid-column: 1 / -1;
}

.card {
    border: 1px solid rgba(255, 255, 255, 0.11);
    background: rgba(11, 18, 24, 0.42);
    border-radius: var(--radius-sm);
    padding: 1rem;
}

kbd {
    font-family: inherit;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 0.15rem 0.5rem;
}


@media (max-width: 900px) {
    .presentation-header,
    .presentation-footer {
        grid-template-columns: 1fr;
        justify-items: center;
        text-align: center;
    }

    .presentation-header-left,
    .presentation-header-center,
    .presentation-header-right,
    .presentation-footer-left,
    .presentation-footer-center,
    .presentation-footer-right {
        justify-self: center;
    }
}
@media (max-width: 900px) {
    :root {
        --slide-height: min(76vh, 620px);
    }

    .slide-two-columns,
    .slide-top-left-grid,
    .slide-quadrants {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
}