/* Core base: intentionally tiny. Every theme brings its own reset and look. */
html, body { margin: 0; padding: 0; }
*, *::before, *::after { box-sizing: border-box; }
/* Hide the page until a theme has mounted (avoids flashes between styles). */
html:not([data-mounted]) #app { visibility: hidden; }
#app { min-height: 100vh; min-height: 100dvh; }