:root{--bg:#EEF6FF;--surface:#FFFFFF;--muted:#516273;--text:#0C1B2A;--radius:16px;--space:1rem;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Ubuntu,"Helvetica Neue",Arial,"Noto Sans",sans-serif}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.5}
a{text-decoration:none}
.site-header{background:var(--surface);box-shadow:0 1px 2px rgba(0,0,0,.06)}
.brand{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem}
/* announcements widget shell so it doesn't look raw before main CSS */
.announcements-widget{border:1px solid rgba(0,0,0,.12);background:var(--surface);border-radius:12px;overflow:hidden;margin:.5rem 0}
.announcements-widget .ann-head{font-weight:700;padding:.5rem .75rem;border-bottom:1px solid rgba(0,0,0,.08)}
.announcements-widget .ann-list{list-style:none;margin:0;padding:0}
.announcements-widget .ann-item{padding:.6rem .75rem;border-bottom:1px solid rgba(0,0,0,.06)}