/* ============================================================================
THEME OVERRIDE — "RuvNet Brain / Amber Substrate"
----------------------------------------------------------------------------
The ENTIRE per-repo art direction. Load it AFTER design-system.css:
(this file)
It overrides ONLY the expression knobs — never the skeleton. Every layout,
breakpoint, spacing rhythm, motion, and accessibility behaviour is inherited
unchanged. The metaphor: a deep graphite substrate lit by an AMBER mind
(the Brain's identity), with cyan signal and green "grounded" confirmations,
and a warm-to-cool spectrum that runs amber → gold → cyan → green.
============================================================================ */
/* Type personality: editorial serif display (Fraunces) + humanist body
(Hanken Grotesk) + technical mono (JetBrains Mono). Fonts are loaded in
; the skeleton already references these var names. */
:root {
color-scheme: dark;
/* --- Substrate: graphite, raised planes, hairline ridges --- */
--bg: #0a0c10;
--bg-2: #0e1116;
--surface: #13171e;
--surface-2: #181d26;
--ridge: #2a3140;
/* --- Ink: warm off-white fading to faint --- */
--ink: #ece8dc;
--ink-2: #c3c2b6;
--muted: #8b8f9c;
--faint: #5a5f6e;
--on-accent: #0a0c10;
/* --- Accents: amber mind · cyan signal · green grounded --- */
--accent: #f0a830; /* amber — primary identity */
--accent-2: #5ad6ff; /* cyan — links, signal */
--accent-3: #5fd38a; /* green — grounded / honest */
/* --- The signature gradient: warm mind → cool grounding --- */
--spectrum: linear-gradient(96deg,
#f0a830 0%, #ffce6a 22%, #5ad6ff 55%, #5fd38a 100%);
/* --- Semantic signal: the "drift / fails" red the spec calls for --- */
--bad: #ff6b5e;
/* --- Type personality knobs (editorial serif, not industrial caps) --- */
--display: "Fraunces", Georgia, "Times New Roman", serif;
--sans: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
--mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
--display-weight: 600;
--display-case: none;
--display-tracking: -0.012em;
}
/* ----------------------------------------------------------------------------
The one permitted motif flourish (theme may ADD, never override skeleton):
a thin amber spectrum edge under the sticky header — the Brain's signature.
---------------------------------------------------------------------------- */
.site-head { border-bottom: 0; box-shadow: 0 1px 0 0 var(--line); }
.site-head::after { content: ""; display: block; height: 2px; background: var(--spectrum); opacity: 0.9; }