/* Self-hosted Literata variable: roman + italic, latin subset.
   Wght axis spans 200–900 in a single file; italic ships as a separate
   face so it loads on demand the first time <em> renders. */

@font-face {
    font-family: "Literata";
    font-style: normal;
    font-weight: 200 900;
    font-display: swap;
    src: url("/static/fonts/literata-latin.woff2") format("woff2-variations"),
         url("/static/fonts/literata-latin.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+2000-206F, U+2122, U+2212;
}

@font-face {
    font-family: "Literata";
    font-style: italic;
    font-weight: 200 900;
    font-display: swap;
    src: url("/static/fonts/literata-latin-italic.woff2") format("woff2-variations"),
         url("/static/fonts/literata-latin-italic.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+2000-206F, U+2122, U+2212;
}

@layer base {

html {
    font-family: var(--font-body);
    font-size: var(--font-size-body);
    color: var(--ink);
    background-color: var(--paper);
    accent-color: var(--accent);
}

body {
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-block-size: 100dvh;
}

/* Page chrome typography uses the UI stack. */
.site-header,
.site-footer,
.search-form,
.theme-toggle,
.page-nav {
    font-family: var(--font-ui);
}

h1,
h2,
h3 {
    color: var(--ink);
    font-weight: 600;
    line-height: var(--line-height-tight);
    text-wrap: balance;
}

h1 {
    font-size: var(--font-size-h1);
    letter-spacing: -0.01em;
}

h2 {
    font-size: var(--font-size-h2);
}

p {
    text-wrap: pretty;
}

em {
    font-style: italic;
}

/* Reading column shared across page templates. */
.page {
    inline-size: 100%;
    max-inline-size: var(--measure);
    margin-inline: auto;
    padding-inline: var(--gap);
    padding-block: var(--gap-lg);
}

.page--wide {
    max-inline-size: var(--measure-wide);
}

/* Skip link for keyboard users. */
.skip-link {
    position: absolute;
    inset-inline-start: var(--gap);
    inset-block-start: var(--gap);
    padding: 0.5rem 0.75rem;
    background: var(--paper-elevated);
    color: var(--ink);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px oklch(0% 0 0 / 15%);
    transform: translateY(-200%);
    transition: transform var(--duration-base) var(--ease-out);
    z-index: 100;

    &:focus {
        transform: translateY(0);
    }
}

/* Site header: small logo + search + theme toggle. */
.site-header {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--gap);
    padding: var(--gap) clamp(var(--gap), 4vw, 2rem);
    border-block-end: 1px solid var(--ink-faint);
    position: sticky;
    inset-block-start: 0;
    z-index: 10;
    backdrop-filter: saturate(140%) blur(8px);
    background: color-mix(in oklab, var(--paper) 88%, transparent);
}

.site-logo {
    display: inline-flex;
    align-items: center;

    img {
        block-size: 2rem;
        inline-size: auto;
    }

    &:hover img {
        filter: drop-shadow(0 0 8px var(--accent-soft));
    }
}

.site-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--gap);
    padding: var(--gap-lg) var(--gap);
    color: var(--ink-muted);
    font-size: 0.9375rem;
    border-block-start: 1px solid var(--ink-faint);

    a {
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
        color: var(--ink-muted);
        border-block-end: 1px solid transparent;
        transition: color var(--duration-fast) var(--ease-out),
                    border-color var(--duration-fast) var(--ease-out);

        &:hover {
            color: var(--accent);
            border-block-end-color: currentColor;
        }

        svg,
        img {
            block-size: 1rem;
            inline-size: 1rem;
        }
    }
}

/* Page navigation (prev/next around chapter heading). */
.page-nav {
    display: grid;
    grid-template-columns: 3rem 1fr 3rem;
    align-items: center;
    gap: var(--gap);
    margin-block: var(--gap-lg);

    h1 {
        margin: 0;
        text-align: center;
        font-variant-numeric: oldstyle-nums;
    }

    .nav-link {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        block-size: 2.75rem;
        inline-size: 2.75rem;
        border-radius: 999px;
        color: var(--ink-muted);
        background: transparent;
        transition: background var(--duration-fast) var(--ease-out),
                    color var(--duration-fast) var(--ease-out),
                    transform var(--duration-fast) var(--ease-out);

        &:hover {
            background: var(--accent-soft);
            color: var(--accent);
        }

        &:active {
            transform: scale(0.94);
        }

        /* Use an inline mask so the SVG color follows currentColor in both themes. */
        &::before {
            content: "";
            display: block;
            block-size: 1.25rem;
            inline-size: 1.25rem;
            background: currentColor;
            mask-size: contain;
            mask-repeat: no-repeat;
            mask-position: center;
        }
    }

    .nav-spacer {
        block-size: 2.75rem;
    }
}

/* BEM-modifier mask-image rules. Kept un-nested because native CSS nesting
   does NOT support &--suffix string concatenation the way Sass did. */
.nav-link--prev::before {
    mask-image: url("/static/img/arrow-back.svg");
    -webkit-mask-image: url("/static/img/arrow-back.svg");
}

.nav-link--next::before {
    mask-image: url("/static/img/arrow-forward.svg");
    -webkit-mask-image: url("/static/img/arrow-forward.svg");
}

/* Theme toggle button. */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    block-size: 2.5rem;
    padding-inline: 0.85rem;
    border-radius: 999px;
    color: var(--ink-muted);
    background: transparent;
    border: 1px solid var(--ink-faint);
    font-size: 0.875rem;
    transition: background var(--duration-fast) var(--ease-out),
                color var(--duration-fast) var(--ease-out),
                border-color var(--duration-fast) var(--ease-out);

    &:hover {
        color: var(--accent);
        border-color: var(--accent);
    }

    .theme-toggle__icon {
        display: inline-block;
        font-size: 1rem;
        line-height: 1;
    }

    .theme-toggle__label {
        font-variant-caps: all-small-caps;
        letter-spacing: 0.04em;
    }
}

/* Cross-document view transitions for chapter navigation. */
@supports (view-transition-name: foo) {
    @view-transition {
        navigation: auto;
    }

    .verses {
        view-transition-name: chapter-body;
    }

    @media (prefers-reduced-motion: reduce) {
        ::view-transition-group(*),
        ::view-transition-old(*),
        ::view-transition-new(*) {
            animation: none !important;
        }
    }
}

@media print {
    .site-header,
    .site-footer,
    .page-nav .nav-link,
    .skip-link,
    .search-form,
    .theme-toggle,
    .chapter-tools {
        display: none !important;
    }

    .page {
        max-inline-size: none;
        padding: 0;
    }

    body {
        background: white;
        color: black;
    }
}

}