:root {
    color-scheme: light dark;
    --bg: #f6f4ef;
    --ink: #1c1b18;
    --muted: #5c5850;
    --line: #d8d3c8;
    --surface: #fffdf8;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #161513;
        --ink: #f3efe6;
        --muted: #b0aaa0;
        --line: #3a372f;
        --surface: #1f1d1a;
    }
}

* {
    box-sizing: border-box;
}

:focus-visible {
    outline: 2px solid var(--ink);
    outline-offset: 2px;
}

body {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.55;
}

main {
    max-width: 48rem;
    margin: 0 auto;
    padding: 3rem 1.25rem 2rem;
}

p {
    color: var(--ink);
}

.muted {
    color: var(--muted);
}

a {
    color: inherit;
}

h1 {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0 0 0.5rem;
}

h2 {
    font-size: 1.1rem;
    margin: 0 0 0.6rem;
}

section {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 1.1rem 1.15rem 1.2rem;
    margin-top: 1.25rem;
    overflow: visible;
}

.difference > h2,
.difference > p,
header,
.auth,
footer,
main > section:not(.difference) {
    transition:
        filter 0.22s ease,
        opacity 0.22s ease;
}

body:has(.time-scene:hover)
    :is(
        header,
        .auth,
        footer,
        .difference > :not(.time-scene),
        main > section:not(.difference)
    ),
body:has(.clip:focus-visible)
    :is(
        header,
        .auth,
        footer,
        .difference > :not(.time-scene),
        main > section:not(.difference)
    ),
body.timeline-focus
    :is(
        header,
        .auth,
        footer,
        .difference > :not(.time-scene),
        main > section:not(.difference)
    ),
body:has(.time-scene:hover) .time-scene:not(:hover),
body.timeline-focus .time-scene:not(.is-active) {
    filter: blur(7px);
    opacity: 0.4;
    pointer-events: none;
}