/* Shared Chalkbox light/dark preference. Pages opt in with body[data-colour-mode]. */
.site-theme-toggle{display:inline-flex;align-items:center;gap:7px;min-height:40px;padding:0 12px;border:1px solid rgba(216,184,102,.55);border-radius:999px;color:var(--chalk,#f5f0df);font:800 .84rem var(--body-font,"Nunito",sans-serif);background:rgba(6,20,17,.22);cursor:pointer;transition:transform .18s ease,background .18s ease,border-color .18s ease}.site-theme-toggle:hover{transform:translateY(-2px);border-color:var(--gold,#d8b866);background:rgba(216,184,102,.1)}.site-theme-actions{display:flex;align-items:center;gap:9px}
body[data-colour-mode="light"]{--board:#e5eee8;--board-deep:#cfddd5;--board-mid:#f0f5f1;--chalk:#263832;--chalk-muted:#5d6f68;--line:rgba(38,56,50,.17);color:var(--chalk);background:radial-gradient(circle at 14% 18%,rgba(19,45,41,.05) 0 1px,transparent 2px),radial-gradient(circle at 78% 32%,rgba(19,45,41,.04) 0 1px,transparent 2px),radial-gradient(circle at 42% 77%,rgba(19,45,41,.035) 0 1px,transparent 2px),linear-gradient(180deg,#f3f7f4 0%,#e5eee8 48%,#d3e0d8 100%);background-size:31px 31px,43px 43px,57px 57px,auto}
body[data-colour-mode="light"] .site-link,body[data-colour-mode="light"] .site-theme-toggle{color:#263832;background:rgba(255,255,255,.62);border-color:rgba(155,121,44,.42)}
body[data-colour-mode="light"] .hero-mark{background:linear-gradient(145deg,rgba(255,255,255,.72),rgba(255,255,255,.2)),rgba(210,225,216,.74);box-shadow:0 24px 65px rgba(51,72,64,.14),inset 0 0 0 7px rgba(155,121,44,.08)}
body[data-colour-mode="light"] .hero-mark::before{border-color:rgba(38,56,50,.18)}
body[data-colour-mode="light"] footer{color:#62736c}
@media(max-width:760px){.site-theme-actions{gap:6px}.site-theme-toggle{min-height:38px;padding:0 10px}.site-theme-toggle .site-theme-label{display:none}}