/* ============================================================ Sepia ("Scroll") — warm parchment, low-glare long-form reading ============================================================ Selectable from the settings menu, alongside Procyon Light/Dark, High Contrast, The Cave, and Mary's Room. Scoped to html[data-book-theme="sepia"] body rather than :root/body.quarto-dark — the attribute lives on so it can be set pre-paint in (see cave.css's header comment for the full reasoning on both the selector's specificity and the pre-paint placement; same logic applies to every theme file in this directory). Forces light polarity (settings dropdown JS clears body.quarto-dark when this theme is selected) — sepia has no dark variant here. Values sourced from the "Reader Themes — Idea Log" (Notion, 2026-07-09): background ~#F3E9D2, body text dark umber ~#3B2F23. Everything else below is derived to sit comfortably in that same warm-parchment family — not independently re-researched per variable, since this is an early test palette, not a locked theme. */ html[data-book-theme="sepia"] body { --book-bg: #f3e9d2; --book-text: #3b2f23; --book-heading: #2c2115; --book-link: #8a5a2b; --book-link-rgb: 138, 90, 43; --book-border: #ddcba3; --book-border-soft: #e6d7b3; --book-muted: #7a6a4f; --book-muted-rgb: 122, 106, 79; --book-scrollbar: #c9b78c; --book-code-bg: rgba(59, 47, 35, 0.06); --book-margin-text: #5c4c37; --book-margin-strong: #3b2f23; --book-breadcrumb-sep: #a4906a; --book-premise-label: #5a4a8a; --book-premise-cite: #8a7a5f; --book-callout-shadow: rgba(59, 47, 35, 0.08); --book-callout-header-border: rgba(59, 47, 35, 0.12); --book-definition-border: #4a6a8a; --book-definition-bg: #eae2c9; --book-theorem-border: #8a3a3a; --book-theorem-bg: #ede0c4; --book-note-border: #6a5a44; --book-note-bg: #ece2c6; --book-warning-border: #8a6a1a; --book-warning-bg: #ede3c2; --book-caution-border: #3a7a4a; --book-caution-bg: #e9e2c8; --book-chassis-border: #a4906a; --book-chassis-bg: #eee5cc; --book-sb-definition-border: #6b5b48; --book-sb-identification-border: #4a5a7a; --book-sb-principle-border: #8a5a6d; --book-sb-theorem-border: #8c4a2a; --book-sb-lemma-border: #a4661f; --book-sb-premise-border: #6e5844; --book-sb-corollary-border: #6e4a6e; --book-sb-condition-border: #2f6b5f; --book-sb-argument-border: #6a5a44; --book-sb-untyped-border: #6b5b48; --book-sb-quickref-border: #7a6a4f; --book-sb-quickref-bg: #ece2c6; /* Chrome (navbar/sidebars/dropdown menus) — warmed off Procyon's own neutral near-black to a dark umber-brown, so the chrome reads as part of this same warm-parchment family rather than staying a cold, theme-blind bar. Kept dark rather than flipped light (like the reading column above): the chrome is a fixed "app shell" a reader doesn't reread, same reasoning Procyon's own comment gives for not moving it with the light/dark toggle either — differs by hue per palette, not by polarity. */ --book-chrome-bg: rgba(43, 32, 22, 0.88); --book-chrome-bg-solid: #2b2016; --book-chrome-scrollbar: #5c4a34; --book-chrome-text: #ede0c8; --book-chrome-text-rgb: 237, 224, 200; --book-chrome-text-hover: #d9a655; --book-chrome-text-hover-rgb: 217, 166, 85; }