.wgs84-card{max-width:540px;padding:20px;border-radius:14px;
box-shadow:0 10px 30px rgba(0,0,0,.08);font-family:system-ui;background:#fff}
.tabs{display:flex;gap:6px;margin-bottom:12px}
.tabs button{flex:1;padding:8px;border-radius:8px;border:1px solid #ddd;background:#f8fafc}
.tab{display:none}
.tab.active{display:block}
input,select{width:100%;padding:10px;margin-bottom:8px}
button{width:100%;padding:12px;background:#2563eb;color:#fff;border:none;border-radius:10px}
.results{margin-top:15px}
.accuracy{font-size:13px;color:#555}