/* Site-wide light/dark theme (GLP / ΤΕΓ).
   Pages with their own token-based dark palette mark <html class="theme-native"> and are not filtered.
   Legacy pages get an inverted colour scheme; photos, video and charts are re-inverted so they look natural. */
html[data-theme="dark"]:not(.theme-native) { filter: invert(.92) hue-rotate(180deg); background: #fff; }
html[data-theme="dark"]:not(.theme-native) img,
html[data-theme="dark"]:not(.theme-native) video,
html[data-theme="dark"]:not(.theme-native) picture,
html[data-theme="dark"]:not(.theme-native) iframe,
html[data-theme="dark"]:not(.theme-native) canvas,
html[data-theme="dark"]:not(.theme-native) [style*="background-image"] { filter: invert(1) hue-rotate(180deg); }
@media print { html[data-theme] { filter: none !important; } .teg-theme-toggle, .teg-preview-banner { display: none !important; } }

.teg-theme-toggle {
  position: fixed; left: 14px; bottom: 14px; z-index: 9998; width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid rgba(0,0,0,.15); background: #fff; color: #222; font: 18px/1 system-ui, sans-serif;
  box-shadow: 0 4px 14px rgba(0,0,0,.15); cursor: pointer; display: grid; place-items: center; padding: 0;
}
.teg-theme-toggle:focus-visible { outline: 2px solid #2a78d6; outline-offset: 2px; }