Celestial Arcane

Every texture is authored at the *exact* native pixel geometry of the vanilla
26.3 client, so the pack scales cleanly at every GUI scale setting with zero
layout drift. No `.mcmeta` sidecars are shipped - all nine-slice and animation
rules fall back to the vanilla defaults.

## What it changes

| Area | Result |
| --- | --- |
| Container screens | Deep-indigo night panels with recessed 18x18 slot cells, nebula washes, deterministic star fields, dotted constellation linework, warm moon glow and silver filigree corners - covering the survival inventory, chests (`generic_54`), crafting table, furnace / smoker / blast furnace, enchanting table, anvil, smithing, brewing stand, hopper, dispenser, shulker box, loom, cartography table, stonecutter, crafter, beacon, horse, villager, gamemode switcher and the three creative item tabs |
| HUD | Hearts redrawn as 9x9 **moon-disc stellar phases** (full moon, half moon, dark new-moon container) with a four-point glint; armour as a heraldic constellation shield plate; hunger / mana as a violet **arcane pool** with a star phase; air as a frosted bubble with a star; plus a redesigned hotbar, selection frame, off-hand slots, XP / jump bars, boss bars and the locator bar |
| Crosshair | A 15x15 **astrolabe reticle** - graduated rings, four cardinal sights and a centre dot - with a matching violet attack-cooldown ring and bar |
| Title screen | The vanilla panorama is replaced by six procedural 1024x1024 **night-sky faces**: an indigo vertical wash, a soft violet nebula bloom, a graded star field, dotted constellation linework, faint astrolabe rings and a small drifting moon |
| Advancement screen | A dark night window frame with constellation-marked rails, twelve tab frames, five tab badges, and obtained / unobtained title and icon frames - task = minor star, goal = full moon, challenge = eight-point astral star |
| Books & signs | The written book page carries a moon sigil, marginal constellation and dusted stars; the thirteen sign boards and thirteen hanging signs are re-drawn as star-studded night plates |
| Menus & widgets | Dark-mode buttons, sliders, text fields, checkboxes, tabs, scrollbars, lock buttons, tooltips, popups and a full set of menu icons, all in the celestial palette |
| Typography | The vanilla 5x7 skeleton with **engraved slab-serif flares** on every alphanumeric glyph - classic Minecraft metrics (one pixel of left bearing, capitals on rows 0-6, x-height from row 2, descenders on row 7), pure white ink so the stock drop shadow keeps text readable |
| Pack icon | `pack.png`, an indigo night plate with a crescent moon, an astrolabe ring and a constellation |