/* ------------------------------------------------------------ night light -- */

/* How the night's two lights land on ink and marks: the lantern's warmth on
   the labels and rune, the colony's cold on the sigils and marks. This file
   was lantern.css and held the lamp glyphs too. The glyphs are gone: three
   rounds of review read them as ornaments hung from nothing — "one ornament,
   four positions, no anchor" — and a lamp that lights nothing is decoration.
   The warm light in the night is the lamp pools in the chapter grounds
   (colonies.css) and the lanterns inside the paintings. */

.chapter-night h1,
.chapter-night h2,
.chapter-night h3,
.chapter-night h4 {
    color: var(--night-ink);
}

.chapter-night .chapter-lead,
.chapter-night p {
    color: var(--night-ink-soft);
}

/* The lead alone takes the full ink. It is the first thing read in a chapter,
   it sits at 19px, and the colonies light the ground under it — --night-ink-soft
   measured 3.53:1 there at 390px, where the page has no margins for a colony to
   stay out of. Body copy stays soft, so the tonal step between a lead and the
   prose under it survives. Gated by .dream-loop/nightcontrast.mjs. */
.chapter-night .chapter-lead {
    color: var(--night-ink);
}

.chapter-night .chapter-mark {
    color: var(--lantern);
}

.chapter-night .chapter-mark::after {
    background: linear-gradient(var(--night-rule), transparent);
}

.chapter-night .chapter-mark-rune,
.turn-band .chapter-mark-rune {
    text-shadow: var(--neon-ink);
}

.chapter-night .sigil-core,
.turn-band .sigil-core {
    filter: drop-shadow(0 0 5px color-mix(in srgb, var(--lantern) 55%, transparent));
}

.chapter-night .memory-mood {
    text-shadow: 0 0 14px color-mix(in srgb, var(--honey) 30%, transparent);
}

/* The overgrowth. A sigil is an organism, so it does not borrow the lantern's
   warmth — it makes its own cold light, the way the fungus eating a neon sign
   does. This is also where --creek and --sage finally do structural work
   instead of sitting in the token file unused. */
.chapter-night .sigil-core,
.turn-band .sigil-core,
.chapter-night .chapter-mark-cell,
.turn-band .chapter-mark-cell {
    color: color-mix(in srgb, var(--creek) 72%, var(--honey));
    filter:
        drop-shadow(0 0 9px color-mix(in srgb, var(--creek) 70%, transparent))
        drop-shadow(0 0 26px color-mix(in srgb, var(--sage) 46%, transparent));
}

/* The cold light is emitted by the sigil itself — see the drop-shadows above,
   which follow the drawn strands.

   There was a `box-shadow: var(--biolume); border-radius: 50%` here. The mark
   is a 2.6rem box with no background, so an outer box-shadow paints a hard rim
   with an unlit middle — an annulus, not a glow — and the blanket
   `corner-shape: superellipse(2.4)` turned that 50% into a squircle, because
   .chapter-mark is not on the round exemption list. So the site's one
   procedurally grown mark sat inside a machined rounded square of light, which
   is the exact thing Sigil.js says it removed from the markup: "The rune was
   sitting in a perfect circle with a hairline border — the constructed version
   of the exact form the sigil grows." A lighting rule had put it back, larger. */

/* --honey measured 4.4:1 against the lit panel — just under AA for 15px/700.
   The ground under these labels is not the flat night, it is --surface-night's
   own warm lantern radial, which has lit them since long before the colonies
   existed. --lantern is the same made light one step brighter, so the warm
   system is unchanged and the label clears AA. Gated by
   .dream-loop/nightcontrast.mjs, measured from rendered pixels. */
.chapter-night .turn-label,
.turn-band .turn-label {
    color: var(--lantern);
    /* No glow. Small bold labels with a soft halo read as "a cheap Photoshop
       outer glow" to a design judge who found it on four of them. The
       lantern colour is the made light already; a label is not a lamp. The
       medallions keep theirs — they are the light sources, and that judge
       rated them the best thing on the night half of the page. */
}

.chapter-night .sigil-strand,
.turn-band .sigil-strand {
    stroke: var(--sage);
    opacity: 0.72;
    filter: drop-shadow(0 0 7px color-mix(in srgb, var(--sage) 60%, transparent));
}