/* Almanack CSS - main stylesheet */

/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */
:root {
    /* Colors */
    --color-text: #1a1a1a;
    --color-bg: #fcfcfa;
    --color-bg-center: #fcfcfa;
    --color-bg-edge: #fcfcfa;
    --color-muted: #666;
    --color-subtle: #999;
    --color-dim: #444;
    --color-faint: #777;
    --color-dark: #333;
    --color-light: #ccc;
    --color-border: #aaa;
    --color-rule: #e0e0e0;
    --color-code-bg: #f5f5f5;

    /* Fonts */
    --font-display: "Fell English", "Big Caslon Adjusted", "Big Caslon", "Hoefler Text", Garamond, serif;
    --font-body: "EB Garamond", "Baskerville Adjusted", Baskerville, "Palatino Linotype", Palatino, serif;
    --font-mono: Iosevka, Menlo, Monaco, Consolas, 'Lucida Console', monospace;

    /* Illumination pigments */
    --illum-ultramarine: #2F4A7A;
    --illum-ultramarine-wash: rgba(47, 74, 122, 0.18);
    --illum-ultramarine-fn: rgba(47, 74, 122, 0.60);
    --illum-vermilion: #A33A2B;
    --illum-verdigris: #2F6F62;
    --illum-saffron: #B8892E;
    --illum-saffron-rule: rgba(184, 137, 46, 0.45);
    --illum-saffron-text: #8c7025;

    /* Category washes */
    --wash-ultramarine: rgba(47, 74, 122, 0.12);
    --wash-ultramarine-strong: rgba(47, 74, 122, 0.18);
    --wash-vermilion: rgba(163, 58, 43, 0.12);
    --wash-verdigris: rgba(47, 111, 98, 0.12);
    --wash-saffron: rgba(184, 137, 46, 0.12);
    --wash-saffron-deep: rgba(184, 137, 46, 0.20);
    --wash-parchment: rgba(138, 109, 59, 0.10);

    /* Structural warm */
    --wash-warm-border: rgba(138, 109, 59, 0.28);

    /* Breakpoints (for reference - can't use in media queries) */
    --breakpoint-tablet: 768px;
    --breakpoint-mobile: 640px;
}

html {
    color: var(--color-text);
    background-color: var(--color-bg);
    scrollbar-gutter: stable both-edges;
    background-image: none;
}

/* Adjusted fallback fonts - match metrics to reduce layout shift during font load */
@font-face {
    font-family: "Baskerville Adjusted";
    src: local("Baskerville");
    size-adjust: 100%;         /* EB Garamond metrics close to Baskerville */
    ascent-override: 90%;
    descent-override: 25%;
}

@font-face {
    font-family: "Big Caslon Adjusted";
    src: local("Big Caslon Medium");
    size-adjust: 92.1%;        /* Match Fell English x-height: 44.0/47.8 */
    ascent-override: 90.5%;
    descent-override: 36.3%;
}

/* Font faces - paths relative to /static/css/, WOFF2 with TTF fallback */
@font-face {
    font-family: "Fell English";
    src: url("../fonts/IMFellEnglishSC-Regular.woff2") format("woff2"),
         url("../fonts/IMFellEnglishSC-Regular.ttf") format("truetype");
    font-display: block;  /* Hide title until font loads (up to 3s) */
}

@font-face {
    font-family: "EB Garamond";
    font-style: normal;
    font-weight: 400;
    src: url("../fonts/EBGaramond12-Regular.woff2") format("woff2"),
         url("../fonts/EBGaramond12-Regular.ttf") format("truetype");
    font-display: swap;
}

@font-face {
    font-family: "EB Garamond";
    font-style: italic;
    font-weight: 400;
    src: url("../fonts/EBGaramond12-Italic.woff2") format("woff2"),
         url("../fonts/EBGaramond12-Italic.ttf") format("truetype");
    font-display: swap;
}

@font-face {
    font-family: "Cormorant Garamond";
    font-style: italic;
    font-weight: 500;
    src: url("../fonts/CormorantGaramond-MediumItalic.woff2") format("woff2"),
         url("../fonts/CormorantGaramond-MediumItalic.ttf") format("truetype");
    font-display: swap;
}

/* Masthead container — illuminated rule with saffron sunburst */
.masthead {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: stretch;
    padding: 0.5em 2.5% 0.45em;
    margin-bottom: 0.35em;
    position: relative;
    overflow: visible;
    transition: padding-top 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                padding-bottom 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    background: radial-gradient(
        ellipse 50% 90% at 50% 55%,
        rgba(184, 137, 46, 0.06) 0%,
        rgba(184, 137, 46, 0.03) 40%,
        transparent 100%
    );
}

.masthead.expanded {
    padding-top: 4em;
    padding-bottom: 3em;
}

/* Celestial canvas: 3D horizon sphere behind the masthead text.
   Extends above the masthead into body padding so celestial bodies
   aren't clipped when they orbit above the frontispiece. */
.horizon-canvas {
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    height: calc(100% + 50px);
    pointer-events: none;
    z-index: 1;
}

/* When interactive (armillary mode), canvas captures drags */
.horizon-canvas.interactive {
    pointer-events: auto;
    cursor: grab;
    z-index: 10;
}

.horizon-canvas.dragging {
    cursor: grabbing;
}

/* Armillary time slider: hidden by default, shown on touch devices when expanded */
.armillary-time-slider { display: none; }

@media (pointer: coarse) {
    .masthead.expanded .armillary-time-slider {
        display: block;
        position: absolute;
        bottom: 0.8em;
        left: 10%;
        width: 80%;
        z-index: 12;          /* above canvas (10) and meta-left (11) */
        appearance: none;
        -webkit-appearance: none;
        background: transparent;
        height: 2em;          /* generous touch target */
        opacity: 0.7;
        transition: opacity 0.2s ease;
    }
    .masthead.expanded .armillary-time-slider:active { opacity: 1; }

    /* Track: thin golden line, faded at edges */
    .armillary-time-slider::-webkit-slider-runnable-track {
        height: 2px;
        background: linear-gradient(to right,
            transparent,
            rgba(184,137,46,0.5) 10%,
            rgba(184,137,46,0.5) 90%,
            transparent);
    }
    /* Thumb: small golden circle */
    .armillary-time-slider::-webkit-slider-thumb {
        -webkit-appearance: none;
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background: rgba(184,137,46,0.8);
        border: 1px solid rgba(184,137,46,0.4);
        margin-top: -7px;
    }
    /* Firefox track */
    .armillary-time-slider::-moz-range-track {
        height: 2px;
        border: none;
        background: linear-gradient(to right,
            transparent,
            rgba(184,137,46,0.5) 10%,
            rgba(184,137,46,0.5) 90%,
            transparent);
    }
    /* Firefox thumb */
    .armillary-time-slider::-moz-range-thumb {
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background: rgba(184,137,46,0.8);
        border: 1px solid rgba(184,137,46,0.4);
    }
}

/* Ensure masthead children (text) sit above celestial bodies */
.meta-left, .meta-right, .frontispiece-wrapper {
    position: relative;
    z-index: 1;
}

/* Frontispiece period: clickable armillary activation point */
.fp-period {
    cursor: grab;
}

/* Meta-left time hint shown during armillary mode */
.meta-left small {
    font-family: var(--font-body);
    font-size: 0.65rem;
    opacity: 0.6;
    letter-spacing: 0.02em;
}

/* During armillary mode, meta-left must sit above the interactive canvas */
.masthead.expanded .meta-left {
    z-index: 11;
}

/* Almanack info block (rise/set, phase) in armillary mode */
.meta-left .almanack-info {
    display: block;
    font-size: 0.65rem;
    white-space: nowrap;
    line-height: 1.55;
    margin: 0.2em 0 0.3em;
    opacity: 1;
}

.meta-left .almanack-info .body-sym {
    display: inline-block;
    width: 1.1em;
    text-align: center;
}

/* UI controls (location, drag hint) — visually recessed */
.meta-left .almanack-ui {
    display: block;
    font-size: 0.6rem;
    line-height: 1.5;
    opacity: 0.5;
    margin-top: 0.1em;
    border-top: 1px solid rgba(184, 137, 46, 0.15);
    padding-top: 0.25em;
}

.meta-left .almanack-ui a {
    color: var(--illum-saffron-text);
    text-decoration: none;
    opacity: 0.8;
}

.meta-left .almanack-ui a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Illuminated rule: saffron top + vermilion dots + ultramarine bottom */
.masthead::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 2%;
    right: 2%;
    height: 5px;
    background:
        linear-gradient(to right, transparent, var(--illum-saffron-rule) 15%, var(--illum-saffron-rule) 85%, transparent) top center / 100% 1px no-repeat,
        radial-gradient(circle, var(--illum-vermilion) 1px, transparent 1.5px) center center / 8em 5px repeat-x,
        linear-gradient(to right, transparent, rgba(47, 74, 122, 0.25) 15%, rgba(47, 74, 122, 0.25) 85%, transparent) bottom center / 100% 1px no-repeat;
}

.frontispiece {
    display: block;
    font-size: 5em;
    font-family: var(--font-display);
    text-align: center;
    margin: 0;
    line-height: 1;
    text-decoration: none;
    color: inherit;
}

/* Frontispiece wrapper: centre column of masthead flex layout */
.frontispiece-wrapper {
    flex-grow: 2;
    text-align: center;
}

.frontispiece-wrapper .frontispiece {
    margin-bottom: 0;
}

/* Meta info on the wings */
.meta-left, .meta-right {
    flex-grow: 1;
    font-family: var(--font-display);
    font-size: 1rem;
    width: 15%;
    color: var(--illum-saffron-text);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.meta-right {
    text-align: right;
    overflow: visible;
    justify-content: flex-end;
    padding-bottom: 0.3em;
}

/* Pricing label inside meta-right — positioned at the top of the column
   so the stamp can overlap it upward without pushing the masthead down. */
.identity-pricing {
    font-size: 0.85em;
    opacity: 0.8;
    position: absolute;
    top: 0.3em;
    right: 0;
}

/* Subscriber's stamp — rubber-stamp impression, askew and bold.
   Uses Cormorant Garamond italic for a hand-inscribed calligraphic feel
   distinct from both the display (Fell English SC) and body (EB Garamond). */
.masthead-stamp {
    font-family: "Cormorant Garamond", var(--font-body) !important;
    font-style: italic;
    font-weight: 500;
    font-size: 0.58em;
    line-height: 1.1;
    text-align: center;
    margin-top: 0.1em;
    padding: 0.15em 0.35em 0.1em;
    border: 1.5px double rgba(140, 50, 30, 0.45);
    border-radius: 2px;
    transform: rotate(-3deg);
    transform-origin: center center;
    color: rgba(140, 50, 30, 0.65);    /* faded stamp ink */
    background: var(--color-bg, #fcfcfa);
    box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.08);
    display: inline-block;
    max-width: 12em;
    align-self: flex-end;
    margin-right: 1.5em;
}

.masthead-stamp:empty { border: none; padding: 0; }

/* Reset margin-box positioning when placed inside the masthead */
.masthead-stamp .margin-box {
    position: static !important;
    width: auto !important;
    max-width: none !important;
    display: block !important;
    opacity: 1 !important;
    padding: 0 !important;
    margin: 0 !important;
}

.masthead-stamp .stamp-directed {
    display: block;
    font-size: 0.82em;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.masthead-stamp .stamp-name {
    display: block;
    font-family: "Cormorant Garamond", var(--font-body);
    font-style: italic;
    font-weight: 500;
    font-size: 1.05em;
    color: rgba(140, 50, 30, 0.75);
    text-decoration: none;
    margin: 0;
}

.masthead-stamp .stamp-name:hover {
    color: rgba(140, 50, 30, 0.95);
}

.masthead-stamp .stamp-balance {
    display: block;
    font-size: 0.85em;
    margin-top: 0.05em;
}

.masthead-stamp .stamp-balance.negative {
    color: rgba(180, 30, 20, 0.85);   /* urgent red for debts */
}

.masthead-stamp .stamp-balance.positive {
    color: rgba(30, 90, 50, 0.8);
}

.masthead-stamp .stamp-links {
    display: block;
    font-size: 0.72em;
    margin-top: 0.05em;
    opacity: 0.55;
}

.masthead-stamp .stamp-links a {
    color: inherit;
    text-decoration: none;
    white-space: nowrap;
}

.masthead-stamp .stamp-links a:hover {
    color: var(--illum-vermilion);
}

/* Centered navigation strip below masthead text, above the rule */
.masthead-nav {
    flex-basis: 100%;
    font-family: var(--font-body);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    line-height: 1.3;
    white-space: nowrap;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 0;
    position: relative;
    z-index: 1;
    margin-top: 0.2em;
}

/* Page links: ultramarine (Chronology, Today, Subject Index) */
.masthead-nav a {
    color: var(--illum-ultramarine);
    text-decoration: none;
}

/* Relative navigation: verdigris (Previously, Latterly) */
.masthead-nav .nav-rel {
    color: var(--illum-verdigris);
}

.masthead-nav a:hover:not(.nav-disabled) {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

/* Washed-out nav items (no valid target) — keeps verdigris tint */
.masthead-nav .nav-disabled {
    cursor: default;
    opacity: 0.45;
}

/* Current page: rubricated */
.masthead-nav .nav-current {
    color: var(--illum-vermilion);
}

/* Middot separators between nav items */
.masthead-nav .nav-sep {
    color: var(--color-dim);
    margin: 0 0.4em;
}

/* Body layout */
body {
    margin: 0 auto;
    max-width: 43em;
    padding: 50px;
    hyphens: auto;
    overflow-wrap: break-word;
    text-rendering: optimizeLegibility;
    font-kerning: normal;
    font-size: 1.3rem;
    font-family: var(--font-body);
    line-height: 1.5;
    /* OpenType features: standard + discretionary ligatures, contextual alternates */
    font-variant-ligatures: common-ligatures discretionary-ligatures contextual;
    font-variant-numeric: oldstyle-nums proportional-nums;
    font-feature-settings: "liga" 1, "clig" 1, "dlig" 1, "calt" 1, "onum" 1, "pnum" 1;
}

/* Main content narrower to align with masthead center */
main {
    padding-left: 15%;
    padding-right: 15%;
}

/* Three-column margins layout */
/* Override body and main constraints when using margins layout */
body:has(.margins-layout) {
    max-width: 72rem;
    padding-left: 3rem;
    padding-right: 3rem;
}

/* Tighter body padding when viewport is narrow but three columns still showing */
@media (max-width: 1000px) {
    body:has(.margins-layout) {
        padding-left: 0;
        padding-right: 0;
    }
}

main:has(.margins-layout) {
    padding-left: 0;
    padding-right: 0;
}

.margins-layout {
    display: grid;
    /* Proportional columns: margins are 0.33x the center width */
    /* All columns shrink together below ~1000px until breakpoint */
    grid-template-columns:
        minmax(12rem, 0.33fr)
        minmax(22rem, 1fr)
        minmax(12rem, 0.33fr);
    gap: 1.5rem;
    width: 100%;
    max-width: none;
    margin: 0 auto;
    padding: 0 1rem;
    box-sizing: border-box;
}

.margin {
    position: relative;
    font-size: 0.85rem;
    line-height: 1.4;
    font-family: var(--font-body);
}

.margin-left {
    grid-column: 1;
}

.body-text {
    grid-column: 2;
}

.margin-right {
    grid-column: 3;
}

/* Full-width title — spans all columns on desktop (broadside style) */
.article-title {
    grid-column: 1 / -1;
    text-align: center;
}

/* ==========================================================================
   Mobile & Narrow Screen Modes

   Three distinct layout modes handle margins on constrained viewports:

   1. NO-JS TOUCH (pointer: coarse, no .swipe-margins-enabled)
      - Single column, margins hidden, inline footnotes at bottom
      - Fallback when JavaScript fails or is disabled on touch devices

   2. JS-ENABLED SWIPE (pointer: coarse + .swipe-margins-enabled)
      - Three 90vw columns with horizontal scroll-snap
      - Manicules peek in 5vw gutters as swipe affordances
      - Footnotes hidden (sidenotes visible in margins)

   3. NARROW NON-TOUCH (pointer: fine + max-width: 800px)
      - Single column, margins hidden, inline footnotes
      - For desktop browsers resized to narrow width
   ========================================================================== */

/* Mode 1: No-JS fallback for narrow touch devices - single column with inline footnotes */
/* Wide touch devices (e.g. iPad landscape) get the regular three-column grid */
@media (pointer: coarse) and (max-width: 800px) {
    .margins-layout {
        display: block;
        max-width: 43em;
        padding: 0;
    }
    .margin-left,
    .margin-right {
        display: none;
    }
    .footnote {
        display: block;
    }
    /* Flatten stamp on narrow touch devices */
    .masthead-stamp {
        transform: none;
        border: none;
        padding: 0;
        background: transparent;
        box-shadow: none;
    }
}

/* Mode 3: Narrow-screen fallback for non-touch devices */
@media (pointer: fine) and (max-width: 800px) {
    .margins-layout {
        display: block;
        max-width: 43em;
        padding: 0;
    }
    .margin-left,
    .margin-right {
        display: none;
    }
    /* Flatten stamp in single-column degraded layout */
    .masthead-stamp {
        transform: none;
        border: none;
        padding: 0;
        background: transparent;
        box-shadow: none;
    }
}

/* Mode 2: JS-enabled swipe layout for touch devices */
@media (pointer: coarse) {
    /* Remove body padding to allow full-width swipe */
    body.swipe-margins-enabled {
        padding: 0;
        overflow-x: hidden;
    }

    .swipe-margins-enabled .margins-layout {
        display: grid;
        /* 90vw columns with center snap = 5vw peek gutters on each side */
        grid-template-columns: 90vw 90vw 90vw;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        scroll-behavior: smooth;

        /* Hide scrollbar */
        scrollbar-width: none;
        -ms-overflow-style: none;

        /* Reset constraints */
        max-width: none;
        width: 100%;
        padding: 0;
        gap: 0;
    }

    .swipe-margins-enabled .margins-layout::-webkit-scrollbar {
        display: none;
    }

    .swipe-margins-enabled aside.margin.margin-left,
    .swipe-margins-enabled .body-text,
    .swipe-margins-enabled aside.margin.margin-right {
        scroll-snap-align: center;
        scroll-snap-stop: always;
        min-height: 100vh;
        box-sizing: border-box;
    }

    /* Main column gets comfortable padding */
    .swipe-margins-enabled .body-text {
        padding: 1rem;
    }

    /* Margins get minimal padding so manicules peek into view */
    .swipe-margins-enabled aside.margin.margin-left,
    .swipe-margins-enabled aside.margin.margin-right {
        padding: 0.25rem;
        display: flex;
        flex-direction: column;
    }

    /* Re-enable margin boxes once they've been moved to margin columns */
    .swipe-margins-enabled .margin-box.margin-left,
    .swipe-margins-enabled .margin-box.margin-right {
        display: block;
    }

    /* Swipe mode: keep title in center pane, not spanning all columns */
    .swipe-margins-enabled .article-title {
        grid-column: 2;
    }

    /* Hide inline margin-boxes still inside body-text */
    .swipe-margins-enabled .body-text > .margin-box:not(.margin-left):not(.margin-right) {
        display: none;
    }

    /* Sidenotes get constrained width, similar to desktop proportions */
    .swipe-margins-enabled .sidenote {
        max-width: 25em;
        width: auto;
    }

    /* Left margin: sidenote hugs the right edge (toward main column) */
    /* Negative margin nudges manicule further into peek gutter */
    .swipe-margins-enabled .sidenote.margin-left {
        align-self: flex-end;
        margin-right: -0.5rem;
    }

    /* Right margin: sidenote hugs the left edge (toward main column) */
    .swipe-margins-enabled .sidenote.margin-right {
        align-self: flex-start;
        margin-left: -0.5rem;
    }

    /* Accessibility note: display:none is intentional here, not visually-hidden.
       In swipe mode, sidenotes are fully visible in the margin columns, so
       footnotes at the bottom would be duplicate content. Screen readers should
       encounter the content once (as sidenotes), not twice. */
    .swipe-margins-enabled .footnote,
    .swipe-margins-enabled .footnotes {
        display: none;
    }
}

/* Publication name in title font (use *Almnck.*{.pub} in markdown) */
em.pub {
    font-family: var(--font-display);
    font-style: normal;
    font-weight: 800;
    text-shadow: 0.25px 0 0 currentColor;
}

/* Sidenote elements */
.sidenote {
    position: absolute;
    width: 100%;
    padding: 0.5em 0;
    display: flex;
    gap: 0.4em;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out, top 200ms ease-out;
}

/* Sidenotes materialize: fade in and float upward */
.sidenotes-ready .sidenote {
    opacity: 1;
    transform: translateY(0);
}

/* Disable transitions during programmatic repositioning to prevent jumping */
.repositioning .sidenote,
.repositioning .margin-box {
    transition: none !important;
}

/* Hide number, show manicule instead */
.sidenote-number {
    font-size: 1.1em;
    line-height: 1.3;
}

/* Hide number, manicule alone suffices */
.sidenote-numtext {
    display: none;
}

/* Left margin: content first, manicule on right pointing toward body */
.sidenote.margin-left {
    flex-direction: row;
}

.sidenote.margin-left .sidenote-number {
    order: 2;
    margin-left: auto;
}

.sidenote.margin-left .sidenote-number::after {
    content: "☞";
    color: var(--illum-ultramarine);
}

.sidenote.margin-left .sidenote-content {
    order: 1;
}

/* Right margin: manicule on left pointing toward body, then content */
.sidenote.margin-right {
    flex-direction: row;
}

.sidenote.margin-right .sidenote-number {
    order: 1;
}

.sidenote.margin-right .sidenote-number::before {
    content: "☜";
    color: var(--illum-ultramarine);
}

.sidenote.margin-right .sidenote-content {
    order: 2;
}

.sidenote-content {
    flex: 1;
}

.sidenote-content p {
    margin: 0 0 0.5em 0;
}

.sidenote-content p:last-child {
    margin-bottom: 0;
}

/* Offset sidenotes: anchor marker stays at correct line, content floats down */
.sidenote-anchor-marker {
    position: absolute;
    display: none; /* Shown by JS when needed */
}

.sidenote.margin-left .sidenote-anchor-marker {
    right: 0;
}

.sidenote.margin-right .sidenote-anchor-marker {
    left: 0;
}

/* Hide the regular manicule when offset - the marker shows it instead */
.sidenote.sidenote-offset > .sidenote-number {
    visibility: hidden;
}

/* Dotted connector line from marker to content - emerges from manicule's wrist */
.sidenote-connector {
    position: absolute;
    opacity: 0;
    border-left: 1px dotted var(--illum-ultramarine-wash);
    width: 0;
    transition: opacity 0.6s ease;
}

/* Position connector on body-text side (near manicule finger) */
.sidenote.margin-left .sidenote-connector {
    right: 1.2rem;
}

.sidenote.margin-right .sidenote-connector {
    left: 1.2rem;
}

/* Show connector only on hover */
.sidenote.sidenote-offset:hover .sidenote-connector,
.sidenote.sidenote-offset.highlighted .sidenote-connector {
    opacity: 1;
}

/* Hide original footnotes when sidenotes are active */
.sidenotes-enabled .footnote {
    display: none;
}

/* Sidenote content - invisible border to prevent layout shift */
.sidenote .sidenote-content {
    border: 1px solid transparent;
    padding: 3px;
    transition: border-color 0.6s ease;
}

/* Ultramarine gutter accent on the body-text edge of sidenote content */
.sidenote.margin-left .sidenote-content {
    border-right: 1.5px solid var(--illum-ultramarine-wash);
}

.sidenote.margin-right .sidenote-content {
    border-left: 1.5px solid var(--illum-ultramarine-wash);
}

/* Highlight: brighten gutter border to full ultramarine (same width — no reflow) */
.sidenote.margin-left:hover .sidenote-content,
.sidenote.margin-left.highlighted .sidenote-content {
    border-right-color: var(--illum-ultramarine);
}
.sidenote.margin-right:hover .sidenote-content,
.sidenote.margin-right.highlighted .sidenote-content {
    border-left-color: var(--illum-ultramarine);
}

/* Brighten connector to match — solid line when active */
.sidenote:hover .sidenote-connector,
.sidenote.highlighted .sidenote-connector {
    border-left: 1px solid var(--illum-ultramarine);
}

.footnote-ref.highlighted {
    outline: 1px dotted var(--illum-ultramarine-wash);
    outline-offset: 1px;
}

/* Fragment link highlight (fades out) - for all margin elements */
.fragment-highlighted {
    animation: fragment-highlight 2s ease-out forwards;
}

@keyframes fragment-highlight {
    0%, 50% {
        box-shadow: 0 0 6px 2px var(--color-subtle);
    }
    100% {
        box-shadow: 0 0 6px 2px transparent;
    }
}

/* Sidenotes: glow around the dotted-border content area */
.sidenote.fragment-highlighted {
    animation: none;
}

.sidenote.margin-left.fragment-highlighted .sidenote-content {
    border-right-color: var(--illum-ultramarine);
    animation: fragment-highlight 2s ease-out forwards;
}
.sidenote.margin-right.fragment-highlighted .sidenote-content {
    border-left-color: var(--illum-ultramarine);
    animation: fragment-highlight 2s ease-out forwards;
}

/* Permalink affordance - appears on hover after delay */
.permalink-affordance {
    position: absolute;
    bottom: -0.5em;
    right: -0.5em;
    /* Large padding for easy hover target */
    padding: 0.8em 1em;
    font-size: 0.75rem;
    font-weight: bold;
    color: rebeccapurple;
    text-decoration: none;
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
    cursor: pointer;
    /* Keep it inside parent's clickable area */
    z-index: 10;
}

.permalink-affordance:hover {
    color: rebeccapurple;
    text-decoration: underline;
}

.permalink-affordance.visible {
    opacity: 0.6;
}

.permalink-affordance.visible:hover {
    opacity: 1;
}

/* Source affordance - appears on figures to link to source code */
.source-affordance {
    position: absolute;
    bottom: -0.5em;
    right: 2em; /* Position to the left of permalink */
    /* Large padding for easy hover target */
    padding: 0.8em 1em;
    font-size: 0.75rem;
    font-weight: bold;
    color: rebeccapurple;
    text-decoration: none;
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
    cursor: pointer;
    z-index: 10;
}

.source-affordance:hover {
    color: rebeccapurple;
    text-decoration: underline;
}

.source-affordance.visible {
    opacity: 0.6;
}

.source-affordance.visible:hover {
    opacity: 1;
}

/* Download affordance — appears on video figures */
.download-affordance {
    position: absolute;
    bottom: -0.5em;
    right: 4.5em; /* Position to the left of src */
    /* Large padding for easy hover target */
    padding: 0.8em 0.8em;
    font-size: 0.75rem;
    color: rebeccapurple;
    text-decoration: none;
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
    cursor: pointer;
    z-index: 10;
    line-height: 1;
}

.download-affordance:hover {
    color: rebeccapurple;
}

.download-affordance.visible {
    opacity: 0.6;
}

.download-affordance.visible:hover {
    opacity: 1;
}

/* Ensure parent elements can position the permalink.
   Note: .sidenote and .margin-box are NOT included here because they need
   position: absolute for margin positioning, and absolute also creates
   a containing block for absolutely positioned children. */
.figure,
figure {
    position: relative;
}

/* Clip overflow so permalink doesn't extend outside element bounds */
.sidenote,
.margin-box {
    overflow: visible;
}

/* Hide footnotes section when sidenotes enabled */
.sidenotes-enabled .footnotes {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Show footnotes on narrow non-touch screens (touch devices use swipe mode) */
@media (pointer: fine) and (max-width: 768px) {
    .sidenotes-enabled .footnotes {
        position: static;
        width: auto;
        height: auto;
        padding: 0;
        margin: 0;
        overflow: visible;
        clip: auto;
    }
    .sidenotes-enabled .footnote {
        display: revert;
    }
}

/* Margin boxes - inline fallback for no-JS/mobile */
.margin-box {
    margin: 1.5em auto;
    max-width: 70%;
    padding: 1em;
    border-top: 1px solid var(--color-text);
    border-bottom: 1px solid var(--color-text);
    font-size: 0.9rem;
}

/* Hide margin-boxes in margins-layout until JS positions them */
.margins-layout .margin-box {
    display: none;
}

/* JS enabled: boxes get absolutely positioned in margins */
.sidenotes-enabled .margin-box {
    position: absolute;
    width: calc(100% - 8px);
    box-sizing: border-box;
    margin: 0;
    max-width: none;
    border: none;
    padding: 0.5em 4px;
    scroll-snap-align: none;
}

/* Re-enable margin boxes once they've been moved to margin columns */
/* (overrides .margins-layout .margin-box { display: none } above) */
.sidenotes-enabled .margin-box.margin-left,
.sidenotes-enabled .margin-box.margin-right {
    display: block;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out, top 200ms ease-out;
}

/* Margin boxes materialize with sidenotes after layout settles */
.sidenotes-ready .margin-box.margin-left,
.sidenotes-ready .margin-box.margin-right {
    opacity: 1;
    transform: translateY(0);
}

/* Margin box type variants */
.margin-box[data-type="quote"] {
    font-style: italic;
    border-left: 2px solid var(--color-text);
    padding-left: 0.5em;
    border-top: none;
    border-bottom: none;
}

.margin-box[data-type="quote"] em:not(.pub) {
    font-style: normal;
}

.margin-box[data-type="quote"] cite {
    display: block;
    margin-top: 0.5em;
    font-style: normal;
    font-size: 0.9em;
}

.margin-box[data-type="ad"] {
    border: 1px solid var(--color-text);
    padding: 0.5em;
    text-align: center;
}

.margin-box[data-type="aphorism"] {
    font-family: var(--font-display);
    text-align: center;
    font-size: 1rem;
}

.margin-box[data-type="poem"] {
    font-family: var(--font-body);
    font-size: 0.85rem;
    line-height: 1.4;
    border-top: none;
    border-bottom: none;
    padding: 0.25em 0;
}

.margin-box[data-type="poem"] em:first-child {
    display: block;
    font-style: italic;
    font-weight: 600;
    margin-bottom: 0.75em;
    text-align: left;
}

/* Match sidenote spacing from body text */
/* Left margin: content flush left like sidenotes */
.margin-box[data-type="poem"].margin-left {
    padding-left: 0;
    padding-right: 2em;
}

/* Right margin: indent to match manicule + gap */
.margin-box[data-type="poem"].margin-right {
    padding-left: 2em;
    padding-right: 0;
}

/* Top ornament */
.margin-box[data-type="poem"]::before {
    content: "❦";
    display: block;
    text-align: center;
    margin-bottom: 0.5em;
    font-size: 0.9em;
    color: var(--color-muted);
}

/* Bottom ornament */
.margin-box[data-type="poem"]::after {
    content: "❧";
    display: block;
    text-align: center;
    margin-top: 0.5em;
    font-size: 0.9em;
    color: var(--color-muted);
}

/* Margin box pinning UI */
.margin-box-unpin {
    position: absolute;
    top: 0.25em;
    right: 0.25em;
    opacity: 0.4;
    font-size: 0.75rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25em;
    line-height: 1;
}

.margin-box-unpin:hover {
    opacity: 1;
}

/* Only pinned boxes have the unpin button visible */
.margin-box:not(.margin-box-pinned) .margin-box-unpin {
    display: none;
}

/* Pinned boxes get subtle highlight */
.margin-box-pinned {
    position: relative;
}

/* ======================================================================
   Watercolour Wash System — two-layer pseudo-elements for margin boxes
   ====================================================================== */

/* Wash colour classes — set the --wc-wash variable */
.wc-mb-ultramarine { --wc-wash: var(--wash-ultramarine); }
.wc-mb-ultramarine-strong { --wc-wash: var(--wash-ultramarine-strong); }
.wc-mb-vermilion { --wc-wash: var(--wash-vermilion); }
.wc-mb-verdigris { --wc-wash: var(--wash-verdigris); }
.wc-mb-saffron { --wc-wash: var(--wash-saffron); }
.wc-mb-saffron-deep { --wc-wash: var(--wash-saffron-deep); }
.wc-mb-parchment { --wc-wash: var(--wash-parchment); }

/* Border variants — composable with wash classes */
.wc-mb-border-left { border-left: 2px solid var(--wash-warm-border); }
.wc-mb-border-tb { border-top: 1px solid var(--wash-warm-border); border-bottom: 1px solid var(--wash-warm-border); }
.wc-mb-border-full { border: 1px solid var(--wash-warm-border); }

/* Pigment-matched accent borders — set by JS on body-text side */
.wc-mb-accent-ultramarine { --wc-accent: var(--illum-ultramarine); }
.wc-mb-accent-vermilion { --wc-accent: var(--illum-vermilion); }
.wc-mb-accent-verdigris { --wc-accent: var(--illum-verdigris); }
.wc-mb-accent-saffron { --wc-accent: var(--illum-saffron); }
.wc-mb-accent-parchment { --wc-accent: rgba(138, 109, 59, 0.5); }

/* Sundial accent borders — intensity per edge follows the sun angle.
   --sundial-shadow-{top,right,bottom,left} are 0–1, set by JS. */
[class*="wc-mb-accent-"]::before {
    border-top:    calc(var(--sundial-shadow-top, 0) * 2px) solid var(--wc-accent);
    border-right:  calc(var(--sundial-shadow-right, 0) * 2px) solid var(--wc-accent);
    border-bottom: calc(var(--sundial-shadow-bottom, 0) * 2px) solid var(--wc-accent);
    border-left:   calc(var(--sundial-shadow-left, 0) * 2px) solid var(--wc-accent);
}

/* Parent isolation to contain stacking */
[class*="wc-mb-"] {
    isolation: isolate;
    position: relative;
}

/* ::before — flat wash colour with sundial-directed edge softening.
   --sundial-deg is set by JS (setSundialProperties); fallback 168deg
   preserves the original hand-tuned angle when JS hasn't run yet. */
[class*="wc-mb-"]::before {
    content: "";
    position: absolute;
    inset: -4px 0;
    background-color: var(--wc-wash);
    border-radius: 1px 3px 2px 0;
    mask-image: linear-gradient(var(--sundial-deg, 168deg), transparent 0%, rgba(0,0,0,0.25) 5%, rgba(0,0,0,0.6) 15%, rgba(0,0,0,0.85) 30%, rgba(0,0,0,1) 45%, rgba(0,0,0,0.9) 60%, rgba(0,0,0,1) 75%, rgba(0,0,0,0.6) 90%, rgba(0,0,0,0.3) 100%);
    -webkit-mask-image: linear-gradient(var(--sundial-deg, 168deg), transparent 0%, rgba(0,0,0,0.25) 5%, rgba(0,0,0,0.6) 15%, rgba(0,0,0,0.85) 30%, rgba(0,0,0,1) 45%, rgba(0,0,0,0.9) 60%, rgba(0,0,0,1) 75%, rgba(0,0,0,0.6) 90%, rgba(0,0,0,0.3) 100%);
    z-index: -2;
    pointer-events: none;
}

/* ::after — paper grain texture via SVG filter */
[class*="wc-mb-"]::after {
    content: "";
    position: absolute;
    inset: -4px 0;
    background-color: rgb(120, 100, 65);
    filter: url(#wc-grain);
    opacity: 0.10;
    border-radius: 1px 3px 2px 0;
    z-index: -1;
    pointer-events: none;
}

/* Full-bleed elements span all columns */
.full-bleed {
    grid-column: 1 / -1;
    width: 100%;
    margin: 2rem 0;
}

@media (max-width: 640px) {
    body {
        font-size: 1.2rem;
        padding: 20px;
    }
    /* Stack masthead vertically on mobile */
    .masthead {
        flex-direction: column;
        padding: 0.5em 0;
    }
    /* Hide celestial display on mobile — no room for the sphere */
    .horizon-canvas {
        display: none !important;
    }
    .frontispiece {
        font-size: 3rem;
        order: 1;
    }
    .meta-left, .meta-right {
        width: auto;
        text-align: center;
        font-size: 0.9rem;
    }
    .meta-left {
        order: 2;
    }
    .meta-right {
        order: 3;
        justify-content: center;
        padding-bottom: 0;
    }
    .identity-pricing {
        position: static;
    }
    /* Flatten stamp on mobile — plain text, no stamp effect */
    .masthead-stamp {
        transform: none;
        border: none;
        padding: 0;
        background: transparent;
        box-shadow: none;
        float: none;
        display: block;
        font-size: 0.7em;
        align-self: center;
    }
    .masthead-nav {
        margin-top: 0.4em;
        order: 4;
    }
    /* Remove side padding on mobile */
    main {
        padding-left: 0;
        padding-right: 0;
    }
    /* Smaller title on mobile */
    .article-title {
        font-size: 2rem;
    }
    /* Smaller drop cap on mobile */
    .initial {
        height: 4.5rem;
        margin-left: 0;
        margin-right: 0.3em;
    }
}

@media print {
    html {
        background-color: white;
    }
    body {
        background-color: transparent;
        color: black;
        font-size: 12pt;
    }
    p, h2, h3 {
        orphans: 3;
        widows: 3;
    }
    h2, h3, h4 {
        page-break-after: avoid;
    }
}

/* Typography */
p {
    margin: 1em 0;
}

a {
    color: var(--color-text);
    text-decoration-color: var(--illum-ultramarine-wash);
    text-underline-offset: 0.15em;
    text-decoration-thickness: 1px;
}

a:visited {
    color: var(--color-text);
    text-decoration-color: var(--illum-ultramarine-wash);
}

a:hover {
    text-decoration-color: var(--illum-ultramarine);
}

/* Footnote superscripts: ultramarine */
.footnote-ref {
    color: var(--illum-ultramarine-fn);
    font-weight: 600;
}

/* Body text links: ensure ultramarine underlines in article column */
.body-text a {
    text-decoration-color: var(--illum-ultramarine-wash);
    text-underline-offset: 0.15em;
    text-decoration-thickness: 1px;
}

.body-text a:hover {
    text-decoration-color: var(--illum-ultramarine);
}

/* Rubrication — vermilion for labels and connectives */
.rubricate {
    color: var(--illum-vermilion);
}

img {
    max-width: 100%;
    height: auto;
}

h1, h2, h3, h4, h5, h6 {
    margin-top: 1.4em;
}

h5, h6 {
    font-size: 1em;
    font-style: italic;
}

h6 {
    font-weight: normal;
}

ol, ul {
    padding-left: 1.7em;
    margin-top: 1em;
}

li > ol, li > ul {
    margin-top: 0;
}

blockquote {
    margin: 1em 0;
    padding: 0.5em 1em;
    border-left: 1px solid var(--color-subtle);
    border-right: 1px solid var(--color-subtle);
    font-style: italic;
    color: inherit;
}

/* Reverse italic: emphasis within italic blockquotes becomes roman */
blockquote em,
blockquote i {
    font-style: normal;
}

/* Quoted figure: blockquote with attribution */
figure.quote {
    margin: 1.5em 0;
    padding: 0 10%;
}

figure.quote blockquote {
    margin-bottom: 0.5em;
    border-left: none;
    border-right: none;
    text-align: left;
}

/* Apply first-line styling to paragraph after opening epigraph quote */
.maintext > figure.quote:first-child + p::first-line {
    font-size: 2rem;
    font-variant: small-caps;
    text-transform: lowercase;
    color: var(--illum-vermilion);
}

.maintext > figure.quote:first-child + p {
    hyphens: none;
}

figure.quote figcaption {
    display: block;
    text-align: right;
    font-size: 0.9em;
    color: var(--color-subtle);
    font-style: normal;
}

figure.quote figcaption cite {
    font-style: italic;
}

/* Remove blockquote margins on narrow screens */
@media (max-width: 768px) {
    blockquote {
        padding: 0.5em 0;
        margin-left: 0;
        margin-right: 0;
    }
    figure.quote {
        padding: 0;
    }
}

code {
    font-family: var(--font-mono);
    font-size: 85%;
    margin: 0;
    hyphens: manual;
}

pre {
    margin: 1em 0;
    overflow: auto;
}

pre code {
    padding: 0;
    overflow: visible;
    overflow-wrap: normal;
}

hr {
    background-color: transparent;
    background-image: linear-gradient(
        to right,
        transparent 0%,
        var(--illum-saffron-rule) 15%,
        var(--illum-saffron-rule) 85%,
        transparent 100%
    );
    border: none;
    height: 1.5px;
    margin: 1.5em 0;
}

/* Article header - Gazette style */
header {
    margin-bottom: 0.5em;
    text-align: center;
}

/* Title lives outside <header> as a direct grid child of .margins-layout */
.article-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-variant: small-caps;
    letter-spacing: 0.05em;
    margin-top: 0.1em;
    margin-bottom: -1rem; /* pull up against the grid gap to close space to byline */
}

.article-title a {
    text-decoration: none;
    color: inherit;
}

/* Ornament endcaps on headline */
.article-title::before,
.article-title::after {
    content: "✦";
    color: var(--illum-saffron);
    font-size: 0.4em;
    vertical-align: middle;
    margin: 0 0.4em;
}

/* Dinky-bar: micro-ornament between header and body */
.dinky-bar {
    text-align: center;
    font-size: 0.8rem;
    letter-spacing: 0.4em;
    color: var(--color-subtle);
    margin-bottom: 1.5em;
    margin-top: -0.3em;
}

header .date {
    display: none;
}

header .authorship {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--color-dim);
    margin-top: 0;
    margin-bottom: 0;
}

header .byline {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--color-dim);
    margin-top: 0;
    margin-bottom: 0.5em;
}

header .byline a,
header .authorship a {
    text-decoration: none;
    color: inherit;
}


/* Drop cap initial - sized to 4 lines with symmetric overhang */
.initial {
    float: left;
    margin-top: 0.3em;
    margin-left: 0.2em;
    margin-right: 0.2em;
    height: calc(9rem + 0.2em);
    width: auto;
    filter: sepia(60%) hue-rotate(-5deg) saturate(0.7) brightness(0.85) contrast(1.05);
}

/* Illuminated initial frame */
.illuminated-initial {
    display: block;
    float: left;
    box-sizing: border-box;
    height: calc(9rem + 0.2em);
    margin-top: 0.3em;
    margin-left: 0.2em;
    margin-right: 0.5em;
    padding: 3px;
    border: 1.5px solid var(--illum-saffron);
    background-color: var(--wash-vermilion);
    position: relative;
}

.illuminated-initial .initial {
    float: none;
    margin: 0;
    height: 100%;
    width: auto;
    display: block;
    border: 1px solid var(--illum-ultramarine);
}

/* Main article text */
.maintext {
    text-align: justify;
}

/* First-line small-caps on the paragraph with the drop cap */
.maintext > p:has(.initial)::first-line {
    font-size: 2rem;
    font-variant: small-caps;
    text-transform: lowercase;
    text-justify: inter-character;
    color: var(--illum-vermilion);
}

.maintext > p:has(.initial) {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: justify;
    hyphens: none;
}

/* Tailpiece - small centered ornament at end of article */
.tailpiece {
    display: block;
    margin: 2em auto;
    max-width: 3em;
    height: auto;
}

/* Section break - centered divider between scenes */
.section-break {
    display: block;
    margin: 1em auto;
    max-width: 50%;
    height: auto;
}

/* Footnotes */

.footnote {
    font-size: 0.85em;
    margin-top: 3em;
    margin-right: 1.7em;  /* match left indent from ol numbering */
}

.footnote hr {
    margin-right: -1.7em;  /* extend hr to full width */
}

.footnote-ref {
    text-decoration: none;
    display: inline-block;
    padding: 0.3em 0.4em;
    margin: -0.3em -0.2em;
}

.footnote-ref::before {
    content: "[";
}

.footnote-ref::after {
    content: "]";
}

/* Footnote backref: replace ugly iOS arrow with Almanack-style return */
.footnote-backref {
    font-size: 0;  /* Hide original character */
    display: inline-block;
    padding: 0.5em;
    margin: -0.5em;
    margin-left: 0.25em;
}
.footnote-backref::after {
    content: "§ back §";
    font-size: 0.85rem;
    font-family: var(--font-body);
    opacity: 0.7;
}
.footnote-backref:hover::after {
    opacity: 1;
}

sup {
    font-size: 0.8em;
}

/* Hide figure captions (used for decorative images) */
figcaption {
    display: none;
}

/* Margin figures - plate style presentation */
.figure {
    display: block;
    border: 1px solid var(--color-text);
    padding: 0.5em;
    margin: 0.5em 0.4em;
    background: var(--color-bg);
}

.figure img,
.figure video {
    display: block;
    width: 100%;
    height: auto;
}

/* Portrait figures - subtle wash background for biographical illustrations */
.figure.portrait {
    background: var(--wash-parchment);
    border-color: var(--wash-warm-border);
    padding: 0.8em;
}

.figure.portrait figcaption {
    text-align: center;
}

/* Constrain margin figures to natural size or container, whichever is smaller */
.margin .figure {
    max-width: max-content;
}

.margin .figure img {
    max-width: 100%;
    width: auto;
}

/* Show and style captions for .figure elements */
.figure figcaption {
    display: block;
    position: relative;
    font-size: 0.8em;
    font-weight: 600;
    text-align: center;
    margin-top: 0.5em;
    padding-top: 0.5em;
    color: var(--color-dark);
}

.figure figcaption::before {
    content: "";
    position: absolute;
    top: 0;
    left: 10%;
    width: 80%;
    border-top: 1px solid var(--color-light);
}

@media (max-width: 768px) {
    .figure {
        margin: 1em auto;
        max-width: 80%;
    }
}

/* Interactive figures - ensure caption at bottom */
.figure[data-interactive] {
    display: flex;
    flex-direction: column;
}

.figure[data-interactive] figcaption {
    order: 999; /* Always last */
    margin-top: auto;
}

/* Video figure — saffron plate frame to match scene/annotation ensemble */
.figure[data-interactive="video-player"] {
    border-color: var(--illum-saffron-rule);
    background: var(--wash-saffron);
}

/* Lightbox dialog for enlarged figures */
#lightbox {
    border: none;
    background: transparent;
    max-width: 90vw;
    max-height: 90vh;
    padding: 1em;
}

#lightbox[open] {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#lightbox::backdrop {
    background: rgba(0, 0, 0, 0.85);
}

#lightbox img {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
    cursor: zoom-out;
}

.lightbox-caption {
    position: relative;
    color: #fff;
    text-align: center;
    margin: 1em 0 0;
    padding-top: 0.8em;
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 600;
    max-width: 60ch;
}

.lightbox-caption::before {
    content: "";
    position: absolute;
    top: 0;
    left: 10%;
    width: 80%;
    border-top: 1px solid rgba(255, 255, 255, 0.4);
}

.figure img {
    cursor: zoom-in;
}

/* Chapter table-of-contents in margin */
.margin-box[data-type="chapter-toc"] {
    border-top: none;
    border-bottom: none;
    border-left: 2px solid var(--illum-saffron-rule);
    background: var(--wash-saffron);
}

.video-chapter-toc {
    font-size: 0.8rem;
    line-height: 1.35;
}

.video-chapter-toc-heading {
    font-family: var(--font-display);
    font-weight: bold;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--illum-vermilion);
    margin-bottom: 0.3em;
}

.video-chapter-toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.video-chapter-toc-entry {
    padding: 0.15em 0;
    cursor: pointer;
    color: var(--color-text);
}

.video-chapter-toc-entry:hover {
    color: var(--color-muted);
}

.video-chapter-toc-active {
    font-weight: bold;
    border-left: 2px solid var(--illum-saffron);
    margin-left: -0.6em;
    padding-left: calc(0.6em - 2px);
}

.video-chapter-toc-time {
    font-family: var(--font-mono);
    font-size: 0.85em;
    color: var(--illum-saffron-text);
}

/* Time-range wrapper (needed because media-time-range shadow DOM
   has no default slot for light DOM children like marker dots) */
.vf-time-range-wrap {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
    min-height: 100%;
}

.vf-time-range-wrap media-time-range {
    flex: 1;
    width: 100%;
}

/* Annotation tick markers on scrub bar */
.annotation-markers {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.annotation-marker {
    position: absolute;
    bottom: 55%;
    width: 3px;
    height: 6px;
    background: var(--illum-saffron-rule);
    border-radius: 0.5px;
    transform: translateX(-50%);
}

/* Tables */
table {
    margin: 1em 0;
    border-collapse: collapse;
    width: 100%;
    overflow-x: auto;
    display: block;
    font-variant-numeric: lining-nums tabular-nums;
}

table caption {
    margin-bottom: 0.75em;
}

tbody {
    margin-top: 0.5em;
    border-top: 1px solid var(--color-text);
    border-bottom: 1px solid var(--color-text);
}

th {
    border-top: 1px solid var(--color-text);
    padding: 0.25em 0.5em;
}

td {
    padding: 0.125em 0.5em 0.25em 0.5em;
}

/* Index page */
.article-list {
    list-style: none;
    padding: 0;
}

.article-list li {
    margin: 1em 0;
    font-size: 1.2em;
}

.article-list .day {
    color: var(--color-muted);
    font-size: 0.9em;
}

/* Manual layout - override body/main constraints */
body:has(.manual-layout) {
    max-width: none;
    padding-left: 0;
    padding-right: 0;
}

main:has(.manual-layout) {
    padding-left: 0;
    padding-right: 0;
}

.manual-layout {
    display: grid;
    grid-template-columns: minmax(12rem, 14rem) minmax(20rem, 50rem) 1fr;
    gap: 2rem;
    width: 100%;
    padding: 2rem 3rem;
    box-sizing: border-box;
}

.manual-nav {
    grid-column: 1;
    position: sticky;
    top: 2rem;
    align-self: start;
    font-family: var(--font-body);
    padding-right: 1rem;
    border-right: 1px solid var(--color-rule);
}

.manual-nav h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    margin-bottom: 0.5em;
    border-bottom: 1px solid var(--color-text);
    padding-bottom: 0.3em;
}

.manual-nav h3 a {
    text-decoration: none;
    color: inherit;
}

.manual-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.manual-nav li {
    margin: 0.3em 0;
}

.manual-nav a {
    text-decoration: none;
    color: var(--color-text);
}

.manual-nav a:hover {
    text-decoration: underline;
}

.manual-nav li.active > a {
    font-weight: 600;
}

.manual-nav ul ul {
    padding-left: 1em;
    font-size: 0.9em;
}

.manual-content {
    grid-column: 2;
    min-width: 0;
}

.manual-content h1 {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-top: 0;
}

.manual-content h2 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    margin-top: 1.5em;
}

.manual-content pre {
    background: var(--color-code-bg);
    padding: 1em;
    overflow-x: auto;
    font-size: 0.9em;
}

.manual-content code {
    font-family: var(--font-mono);
}

.manual-content p code {
    background: var(--color-code-bg);
    padding: 0.1em 0.3em;
}

.nav-children {
    list-style: none;
    padding: 0;
    margin: 1em 0;
}

.nav-children li {
    margin: 0.5em 0;
}

@media (max-width: 768px) {
    .manual-layout {
        display: block;
        padding: 1rem;
    }

    .manual-nav {
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--color-text);
        padding-right: 0;
        padding-bottom: 1em;
        margin-bottom: 1.5em;
    }
}

/* Back-of-book index styling */
.idx {
    margin: 0.5em 0;
}

/* All lists in index: no bullets */
.idx ul {
    list-style: none;
    margin: 0;
    padding-left: 0;
}

/* Nested lists (sub-entries): indent */
.idx li > ul {
    padding-left: 1.5em;
}

.idx li {
    margin: 0.15em 0;
    line-height: 1.4;
}

/* Tighten spacing for sub-entries */
.idx li > ul > li {
    margin: 0.1em 0;
}

/* Index links: no underline, dotted on hover */
.idx a {
    text-decoration: none;
    color: inherit;
}

.idx a:hover {
    text-decoration: underline dotted;
    text-underline-offset: 2px;
}


/* Index search plinth - ornate memorial tablet style */
#idx-search {
    display: none;
    margin: 0 auto 1em;
    max-width: 22em;
    text-align: center;
}

#idx-search.js-enabled {
    display: block;
}

/* The motto */
#idx-search .motto {
    font-variant: small-caps;
    letter-spacing: 0.15em;
    font-size: 0.85em;
    margin-bottom: 0.5em;
    color: var(--color-dim);
}

/* Outer ornamental frame */
#idx-search .plinth {
    border: 2px solid var(--color-muted);
    padding: 0.6em;
    position: relative;
    background: linear-gradient(to bottom, #fafafa 0%, #f5f5f0 100%);
    box-shadow:
        inset 0 0 0 1px #fff,
        inset 0 0 0 4px #e8e8e0,
        inset 0 0 0 5px #999,
        0 2px 4px rgba(0,0,0,0.1);
}

/* Corner flourishes using pseudo-elements */
#idx-search .plinth::before,
#idx-search .plinth::after {
    content: "❧";
    position: absolute;
    font-size: 1.2em;
    color: var(--color-faint);
    line-height: 1;
}

#idx-search .plinth::before {
    top: -0.6em;
    left: 0.5em;
}

#idx-search .plinth::after {
    top: -0.6em;
    right: 0.5em;
    transform: scaleX(-1);
}

/* Bottom flourishes */
#idx-search .plinth-bottom {
    position: absolute;
    bottom: -0.6em;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 0.5em;
}

#idx-search .plinth-bottom span {
    font-size: 1.2em;
    color: var(--color-faint);
    line-height: 1;
}

#idx-search .plinth-bottom span:first-child {
    transform: scaleY(-1);
}

#idx-search .plinth-bottom span:last-child {
    transform: scale(-1, -1);
}

/* Inner input container */
#idx-search .input-frame {
    border: 1px solid var(--color-border);
    background: #fff;
    display: flex;
    align-items: center;
    padding: 0.3em 0.5em;
}

#idx-search input {
    font-family: inherit;
    font-size: 1em;
    padding: 0.2em;
    flex: 1;
    border: none;
    background: transparent;
    text-align: center;
}

#idx-search input:focus {
    outline: none;
}

#idx-search input::placeholder {
    font-style: italic;
    color: var(--color-subtle);
}

/* Clear button */
#idx-search .clear-btn {
    background: none;
    border: none;
    font-size: 1.1em;
    color: var(--color-subtle);
    cursor: pointer;
    padding: 0 0.2em;
    line-height: 1;
    visibility: hidden;
}

#idx-search .clear-btn:hover {
    color: var(--color-dark);
}

#idx-search.has-text .clear-btn {
    visibility: visible;
}

/* Results count */
#idx-search .results-count {
    font-size: 0.75em;
    color: var(--color-muted);
    margin-top: 0.4em;
    font-variant: small-caps;
    letter-spacing: 0.1em;
    min-height: 1.2em;
}

/* Index letter navigation - justified across full width, auto-scaled by JS */
.idx-nav {
    margin: 0.5em 0 1em;
    overflow: hidden;
}

.idx-nav p {
    display: flex;
    justify-content: space-between;
    white-space: nowrap;
    margin: 0;
    font-size: 1.1em;
}

.idx-nav a {
    text-decoration: underline;
}

.idx-nav a:hover {
    text-decoration: underline dotted;
}

/* Hide search box when printing */
@media print {
    #idx-search {
        display: none !important;
    }
}

/* Frontpage Navigation */
.frontpage-nav {
    display: flex;
    justify-content: space-between;
    margin: 1rem 0;
    padding: 0.5rem 0;
    border-top: 1px solid var(--rule-color, #ccc);
    border-bottom: 1px solid var(--rule-color, #ccc);
}

.frontpage-nav a {
    text-decoration: none;
}

.frontpage-nav a:hover {
    text-decoration: underline;
}

.frontpage-nav-fallback {
    margin: 1rem 0;
    font-style: italic;
}

/* Chronology archive */
.chronology-list {
    margin: 0;
    padding: 0;
}

.chronology-entry {
    margin: 1.25rem 0;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-rule);
}

.chronology-entry:last-child {
    border-bottom: none;
}

.chronology-entry dt {
    font-weight: normal;
    margin-bottom: 0.3rem;
}

.chronology-entry dt time {
    color: var(--color-muted);
}

.chronology-entry dt time::after {
    content: " — ";
}

.chronology-entry dd {
    margin: 0;
    margin-top: 0.2rem;
    font-size: 0.95em;
    line-height: 1.5;
    color: var(--color-dim);
}

.chronology-entry dd p {
    margin: 0;
}

.chronology-entry:target {
    background-color: var(--highlight-color, #ffffcc);
}

@media (max-width: 640px) {
    .chronology-entry dt time::after {
        content: "";
    }

    .chronology-entry dt time {
        display: block;
        margin-bottom: 0.15rem;
    }

    .chronology-entry dd {
        padding-left: 0;
    }
}

/* ==========================================================================
   NTK Style
   72-character monospace plain-text newsletter, circa 1997-2006
   ========================================================================== */

/* Expand body/main to allow NTK width on desktop */
body:has(.ntk) {
    max-width: none;
}

main:has(.ntk) {
    padding-left: 0;
    padding-right: 0;
}

.ntk {
    /* Container for horizontal scrolling on narrow screens */
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.ntk pre {
    /* Fixed 72-character width in monospace */
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.35;

    /* Exact width for 72 characters + small padding */
    width: 74ch;
    max-width: none;

    /* Center the content */
    margin: 0 auto;
    padding: 1em 1ch;

    /* Preserve whitespace exactly */
    white-space: pre;
    overflow-wrap: normal;
    word-wrap: normal;

    /* Subtle styling */
    background: transparent;
    color: var(--color-text);
}

/* Override .maintext first-line styling that leaks into pre */
.ntk pre::first-line {
    font-size: inherit;
    font-variant: normal;
    text-transform: none;
}

/* Links within NTK should be subtle */
.ntk a {
    color: var(--color-text);
    text-decoration: underline;
    text-decoration-style: dotted;
}

.ntk a:hover {
    text-decoration-style: solid;
}

/* Mobile: shrink font to fit, with horizontal scroll as fallback */
@media (max-width: 768px) {
    body:has(.ntk) {
        max-width: none;
        padding: 10px;
    }

    .ntk pre {
        /* Scale font to fit 72ch in viewport */
        font-size: calc((100vw - 40px) / 74);
        padding: 0.5em 0;
    }
}

/* Media-chrome theme */
media-controller {
    --media-icon-color: #fff;
    --media-text-color: #fff;
    --media-control-background: transparent;
    --media-range-track-background: rgba(255, 255, 255, 0.3);
    --media-range-bar-color: #fff;
    --media-range-thumb-background: #fff;
    --media-range-thumb-border-radius: 0;
    --media-range-track-border-radius: 0;
    --media-font: var(--font-body);
    --media-font-size: 0.85em;
    display: block;
    position: relative;
    width: 100%;
}

media-controller video {
    display: block;
    width: 100%;
    height: auto;
}

media-control-bar {
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.6));
}

/* Two-row control layout */
.vf-time-bar {
    --media-control-height: 0.6em;
    --media-control-padding: 0.5em;
    --media-range-padding-left: 0.4em;
    --media-range-padding-right: 0.4em;
    padding: 0;
}

.vf-time-bar .vf-time-range-wrap {
    flex: 1;
}

.vf-controls-bar {
    display: flex;
    align-items: center;
}

.vf-spacer {
    flex: 1;
}

/* Inline scene selector */
.vf-scene-selector {
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.75em;
    padding: 0.2em 0.5em;
    cursor: pointer;
    white-space: nowrap;
    max-width: 14em;
    opacity: 0.85;
    position: relative;
}

.vf-scene-selector:hover {
    opacity: 1;
}

.vf-scene-selector::after {
    content: ' \25BE';
    margin-left: 0.3em;
    font-size: 0.9em;
}

/* Scene dropdown */
.vf-scene-dropdown {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 16em;
    max-height: 18em;
    overflow-y: auto;
    background: var(--color-bg);
    border: 1px solid var(--color-text);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.85rem;
    text-shadow: none;
    filter: none;
    z-index: 10;
    margin-bottom: 0.25em;
}

.vf-scene-entry {
    display: flex;
    align-items: baseline;
    gap: 0.6em;
    padding: 0.35em 0.8em;
    cursor: pointer;
    line-height: 1.25;
}

.vf-scene-entry:hover {
    background: var(--color-light);
}

.vf-scene-time {
    font-family: var(--font-mono);
    font-size: 0.85em;
    color: var(--color-muted);
    min-width: 3em;
    flex-shrink: 0;
}

.vf-scene-name {
    flex: 1;
}

media-play-button:hover,
media-mute-button:hover,
media-fullscreen-button:hover,
media-settings-menu-button:hover {
    --media-icon-color: rgba(255, 255, 255, 0.7);
}

/* Settings menu (native media-chrome) */
media-settings-menu {
    --media-text-color: var(--color-text);
    --media-icon-color: var(--color-text);
    --media-menu-background: var(--color-bg);
    --media-menu-item-hover-background: var(--color-light);
    --media-menu-item-checked-background: var(--color-light);
    --media-menu-item-indicator-fill: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.85rem;
    border: 1px solid var(--color-text);
    text-shadow: none;
    filter: none;
    z-index: 20;
}

media-time-display {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
    font-size: 0.7em;
    letter-spacing: -0.03em;
}

/* Narrow video: simplify controls to play, time, fullscreen */
@media (max-width: 500px) {
    .vf-controls-bar media-mute-button,
    .vf-controls-bar .vf-scene-selector,
    .vf-controls-bar .vf-spacer,
    .vf-controls-bar media-settings-menu-button {
        display: none;
    }

    .vf-controls-bar media-time-display {
        margin-left: auto;
    }

    .vf-controls-bar media-fullscreen-button {
        margin-left: 0;
    }
}

/* SVG overlay for annotation shapes */
.video-figure-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: visible;
}

.video-figure-shape {
    fill: transparent;
    stroke: var(--illum-saffron-rule);
    stroke-width: 0.005;
    pointer-events: auto;
    cursor: pointer;
}

.video-figure-shape:hover {
    stroke: var(--illum-saffron);
    fill: rgba(184, 137, 46, 0.1);
}

/* Connector lines from shapes/video edge to margin annotations */
.video-figure-connector {
    stroke: rgba(255, 200, 50, 0.5);
    stroke-width: 0.003;
    stroke-dasharray: 0.01 0.008;
}

/* Video annotation mobile overlay fallback */
.video-annotation-overlay {
    position: absolute;
    bottom: 3em;
    left: 5%;
    right: 5%;
    background: rgba(0, 0, 0, 0.75);
    color: #fff;
    padding: 0.4em 0.8em;
    font-size: 0.85em;
    font-family: var(--font-body);
    pointer-events: none;
    border-radius: 2px;
}

.video-annotation-overlay p {
    margin: 0.2em 0;
}


/* Injected video annotation margin boxes — strip default margin-box chrome */
/* FQA — Frequently Questioned Answers */
.margin-box[data-type="fqa"] {
    font-family: var(--font-body);
    font-size: 0.85rem;
    line-height: 1.45;
    padding: 1em 1.2em;
    border: 1px solid var(--wash-warm-border);
    background: var(--wash-parchment);
    box-sizing: border-box;
}

.margin-box[data-type="fqa"] .fqa-title {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-align: center;
    display: block;
    margin-bottom: 0.6em;
    border-bottom: 1px solid var(--wash-warm-border);
    padding-bottom: 0.4em;
}

.margin-box[data-type="fqa"] .fqa-q,
.margin-box[data-type="fqa"] .fqa-a {
    display: inline;
    font-family: var(--font-display);
    font-size: 1.6rem;
    line-height: 0.8;
    vertical-align: baseline;
    padding: 0 0.08em;
    font-weight: normal;
}

.margin-box[data-type="fqa"] .fqa-q {
    color: var(--illum-vermilion);
}

.margin-box[data-type="fqa"] .fqa-a {
    color: var(--illum-ultramarine);
}

.margin-box[data-type="fqa"] em:not(.pub) {
    font-style: normal;
    font-variant: small-caps;
    text-transform: lowercase;
}

/* End ornament — use last-of-type so permalink element doesn't break it */
.margin-box[data-type="fqa"] > p:last-of-type::after {
    content: " ❧";
    color: var(--color-subtle);
}

.margin-box[data-type="annotation"] {
    border: none;
    padding: 0;
    background: none;
    visibility: hidden;
}

/* Video annotations in margin boxes */
.video-annotation {
    font-size: 0.85em;
    margin: 0.3em 0;
    cursor: pointer;
    padding: 0.3em 0.5em;
    color: var(--color-dark);
}

/* Right-margin annotations: yellow bar on left, pointing toward center */
.margin-right .video-annotation {
    border-left: 2px solid var(--illum-saffron-rule);
}

/* Left-margin annotations: yellow bar on right, pointing toward center */
.margin-left .video-annotation {
    border-right: 2px solid var(--illum-saffron-rule);
    text-align: right;
}

.video-annotation:hover {
    color: var(--color-text);
    text-decoration: underline;
}

/* ================================================================
   Subscribe form (margin box + /subscribe/ page)
   ================================================================ */

.subscribe-form {
    font-family: var(--font-body);
    font-size: 0.85rem;
}

.subscribe-form label {
    display: block;
    margin-bottom: 0.25em;
    font-family: var(--font-display);
    font-size: 0.9em;
}

.subscribe-form label small {
    font-family: var(--font-body);
    color: var(--color-muted);
}

.subscribe-input,
.subscribe-form input[type="text"],
.subscribe-form input[type="email"] {
    display: block;
    width: 100%;
    padding: 0.4em 0.5em;
    border: 1px solid var(--color-text);
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.9em;
    box-sizing: border-box;
}

.subscribe-form input:focus {
    outline: 2px solid var(--color-text);
    outline-offset: 1px;
}

.subscribe-button,
.subscribe-form button[type="submit"] {
    display: inline-block;
    padding: 0.4em 1.2em;
    border: 1px solid var(--color-text);
    background: var(--color-text);
    color: var(--color-bg);
    font-family: var(--font-display);
    font-size: 0.9em;
    cursor: pointer;
    transition: opacity 0.2s;
}

.subscribe-form button:hover {
    opacity: 0.85;
}

.subscribe-form button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Noscript fallback link */
.noscript-subscribe {
    text-align: center;
    margin: 2em 0;
    padding: 1em;
    border-top: 1px solid var(--color-text);
    border-bottom: 1px solid var(--color-text);
    font-family: var(--font-display);
}

/* "Previously on Almanack" margin box */
.previously-heading {
    font-family: var(--font-display);
    font-size: 0.85em;
    margin: 0 0 0.4em 0;
}

.previously-list {
    margin: 0;
    padding: 0;
}

.previously-list dt {
    font-family: var(--font-display);
    font-size: 0.8em;
    line-height: 1.3;
    margin: 0;
}

.previously-list dt a {
    color: var(--illum-ultramarine);
    text-decoration: none;
}

.previously-list dt a:hover {
    text-decoration: underline;
}

.previously-list dd {
    font-size: 0.72em;
    line-height: 1.35;
    color: var(--color-text);
    margin: 0.1em 0 0.6em 0;
}

.previously-list dd p {
    margin: 0;
}

.previously-list dd:last-child {
    margin-bottom: 0;
}

.previously-more {
    font-size: 0.72em;
    margin: 0.5em 0 0 0;
    text-align: right;
}

.previously-more a {
    color: var(--color-subtle);
    text-decoration: none;
}

.previously-more a:hover {
    color: var(--illum-ultramarine);
}


/* ==========================================================================
   Night Mode — Observatory Dark Theme
   Driven by celestial engine (sun altitude) or OS preference fallback.
   See docs/plans/2026-02-22-night-mode-design.md
   ========================================================================== */

/* Transition: gentle 1s crossfade when theme changes.
   Suppressed on first load by .no-theme-transition (set by JS). */
html {
    transition: background-color 1s ease, color 0.8s ease;
}
html.no-theme-transition,
html.no-theme-transition * {
    transition: none !important;
}

/* --- Night palette: Path 1 — OS / browser preference fallback ---
   Active when user's OS is set to dark mode AND celestial.js has not
   determined it's daytime. The :not(.day-mode) guard lets the celestial
   engine override when it has solar data and the sun is up. */
@media (prefers-color-scheme: dark) {
  :root:not(.day-mode) {
    color-scheme: dark;

    /* Core */
    --color-bg: #0f1318;
    --color-bg-center: #0f1318;
    --color-bg-edge: #0b0e12;
    --color-text: #c8cdd3;
    --color-muted: #7a8290;
    --color-subtle: #555d6a;
    --color-dim: #8a919c;
    --color-faint: #606878;
    --color-dark: #a0a8b4;
    --color-light: #252b34;
    --color-border: #2e3640;
    --color-rule: #1e2530;
    --color-code-bg: #151a22;

    /* Illumination pigments */
    --illum-ultramarine: #5B7FB8;
    --illum-ultramarine-wash: rgba(91, 127, 184, 0.22);
    --illum-ultramarine-fn: rgba(91, 127, 184, 0.70);
    --illum-vermilion: #C45A4A;
    --illum-verdigris: #4A9B8A;
    --illum-saffron: #9A8A5E;
    --illum-saffron-rule: rgba(154, 138, 94, 0.45);
    --illum-saffron-text: #8A8460;

    /* Category washes */
    --wash-ultramarine: rgba(91, 127, 184, 0.12);
    --wash-ultramarine-strong: rgba(91, 127, 184, 0.18);
    --wash-vermilion: rgba(196, 90, 74, 0.12);
    --wash-verdigris: rgba(74, 155, 138, 0.12);
    --wash-saffron: rgba(154, 138, 94, 0.12);
    --wash-saffron-deep: rgba(154, 138, 94, 0.20);
    --wash-parchment: rgba(100, 90, 70, 0.12);

    /* Structural */
    --wash-warm-border: rgba(100, 100, 120, 0.28);
  }

  /* Element overrides for OS preference path */

  /* Masthead: moonlight glow instead of saffron sunburst */
  :root:not(.day-mode) .masthead {
    background: radial-gradient(
        ellipse 50% 90% at 50% 55%,
        rgba(91, 127, 184, 0.05) 0%,
        rgba(91, 127, 184, 0.02) 40%,
        transparent 100%
    );
  }

  /* Drop cap initials: white-line engraving on dark ground */
  :root:not(.day-mode) .initial {
    filter: invert(85%) sepia(15%) hue-rotate(180deg) brightness(0.75) contrast(1.1);
  }

  /* Illuminated initial frame */
  :root:not(.day-mode) .illuminated-initial {
    background-color: rgba(196, 90, 74, 0.15);
    border-color: var(--illum-saffron);
  }

  /* Figures: dim images, restore on hover */
  :root:not(.day-mode) .figure img,
  :root:not(.day-mode) .figure video {
    filter: brightness(0.85);
    transition: filter 0.3s ease;
  }
  :root:not(.day-mode) .figure img:hover,
  :root:not(.day-mode) .figure video:hover {
    filter: brightness(1);
  }

  /* Figure frame */
  :root:not(.day-mode) .figure {
    border-color: var(--color-border);
    background: var(--color-bg);
  }

  /* Index search plinth: dark stone */
  :root:not(.day-mode) #idx-search .plinth {
    background: linear-gradient(to bottom, #151a22 0%, #111720 100%);
    box-shadow:
        inset 0 0 0 1px #1a2030,
        inset 0 0 0 4px #0f1318,
        inset 0 0 0 5px #3a4050,
        0 2px 4px rgba(0, 0, 0, 0.3);
  }
  :root:not(.day-mode) #idx-search .input-frame {
    background: var(--color-code-bg);
    border-color: var(--color-border);
  }
  :root:not(.day-mode) #idx-search input {
    color: var(--color-text);
  }

  /* Watercolour grain: lighter, lower opacity on dark */
  :root:not(.day-mode) [class*="wc-mb-"]::after {
    background-color: rgb(140, 150, 170);
    opacity: 0.06;
  }

  /* Subscribe form inputs */
  :root:not(.day-mode) .subscribe-input,
  :root:not(.day-mode) .subscribe-form input[type="text"],
  :root:not(.day-mode) .subscribe-form input[type="email"] {
    background: var(--color-code-bg);
    border-color: var(--color-border);
    color: var(--color-text);
  }

  /* Masthead stamp */
  :root:not(.day-mode) .masthead-stamp {
    color: rgba(180, 100, 80, 0.65);
    background: var(--color-bg);
    border-color: rgba(180, 100, 80, 0.35);
  }
  :root:not(.day-mode) .masthead-stamp .stamp-name {
    color: rgba(180, 100, 80, 0.75);
  }

  /* Video scene dropdown */
  :root:not(.day-mode) .vf-scene-dropdown {
    background: var(--color-bg);
    border-color: var(--color-border);
  }
  :root:not(.day-mode) .vf-scene-entry:hover {
    background: var(--color-light);
  }

  /* Settings menu */
  :root:not(.day-mode) media-settings-menu {
    --media-menu-background: var(--color-bg);
    --media-menu-item-hover-background: var(--color-light);
    border-color: var(--color-border);
  }
}

/* --- Night palette: Path 2 — Celestial-driven ---
   JS sets .night-mode on <html> when sun altitude ≤ -3°.
   Identical values to the media query path. */
:root.night-mode {
    color-scheme: dark;

    /* Core */
    --color-bg: #0f1318;
    --color-bg-center: #0f1318;
    --color-bg-edge: #0b0e12;
    --color-text: #c8cdd3;
    --color-muted: #7a8290;
    --color-subtle: #555d6a;
    --color-dim: #8a919c;
    --color-faint: #606878;
    --color-dark: #a0a8b4;
    --color-light: #252b34;
    --color-border: #2e3640;
    --color-rule: #1e2530;
    --color-code-bg: #151a22;

    /* Illumination pigments */
    --illum-ultramarine: #5B7FB8;
    --illum-ultramarine-wash: rgba(91, 127, 184, 0.22);
    --illum-ultramarine-fn: rgba(91, 127, 184, 0.70);
    --illum-vermilion: #C45A4A;
    --illum-verdigris: #4A9B8A;
    --illum-saffron: #9A8A5E;
    --illum-saffron-rule: rgba(154, 138, 94, 0.45);
    --illum-saffron-text: #8A8460;

    /* Category washes */
    --wash-ultramarine: rgba(91, 127, 184, 0.12);
    --wash-ultramarine-strong: rgba(91, 127, 184, 0.18);
    --wash-vermilion: rgba(196, 90, 74, 0.12);
    --wash-verdigris: rgba(74, 155, 138, 0.12);
    --wash-saffron: rgba(154, 138, 94, 0.12);
    --wash-saffron-deep: rgba(154, 138, 94, 0.20);
    --wash-parchment: rgba(100, 90, 70, 0.12);

    /* Structural */
    --wash-warm-border: rgba(100, 100, 120, 0.28);
}

/* Element overrides for celestial-driven path */

:root.night-mode .masthead {
    background: radial-gradient(
        ellipse 50% 90% at 50% 55%,
        rgba(91, 127, 184, 0.05) 0%,
        rgba(91, 127, 184, 0.02) 40%,
        transparent 100%
    );
}

:root.night-mode .initial {
    filter: invert(85%) sepia(15%) hue-rotate(180deg) brightness(0.75) contrast(1.1);
}

:root.night-mode .illuminated-initial {
    background-color: rgba(196, 90, 74, 0.15);
    border-color: var(--illum-saffron);
}

:root.night-mode .figure img,
:root.night-mode .figure video {
    filter: brightness(0.85);
    transition: filter 0.3s ease;
}
:root.night-mode .figure img:hover,
:root.night-mode .figure video:hover {
    filter: brightness(1);
}

:root.night-mode .figure {
    border-color: var(--color-border);
    background: var(--color-bg);
}

:root.night-mode #idx-search .plinth {
    background: linear-gradient(to bottom, #151a22 0%, #111720 100%);
    box-shadow:
        inset 0 0 0 1px #1a2030,
        inset 0 0 0 4px #0f1318,
        inset 0 0 0 5px #3a4050,
        0 2px 4px rgba(0, 0, 0, 0.3);
}
:root.night-mode #idx-search .input-frame {
    background: var(--color-code-bg);
    border-color: var(--color-border);
}
:root.night-mode #idx-search input {
    color: var(--color-text);
}

:root.night-mode [class*="wc-mb-"]::after {
    background-color: rgb(140, 150, 170);
    opacity: 0.06;
}

:root.night-mode .subscribe-input,
:root.night-mode .subscribe-form input[type="text"],
:root.night-mode .subscribe-form input[type="email"] {
    background: var(--color-code-bg);
    border-color: var(--color-border);
    color: var(--color-text);
}

:root.night-mode .masthead-stamp {
    color: rgba(180, 100, 80, 0.65);
    background: var(--color-bg);
    border-color: rgba(180, 100, 80, 0.35);
}
:root.night-mode .masthead-stamp .stamp-name {
    color: rgba(180, 100, 80, 0.75);
}

:root.night-mode .vf-scene-dropdown {
    background: var(--color-bg);
    border-color: var(--color-border);
}
:root.night-mode .vf-scene-entry:hover {
    background: var(--color-light);
}

:root.night-mode media-settings-menu {
    --media-menu-background: var(--color-bg);
    --media-menu-item-hover-background: var(--color-light);
    border-color: var(--color-border);
}