:root{--owill-black:#000;--owill-red:#ff0000;--owill-green:#008000} body.testator-bg{background:#111;color:#eee;margin:0;font-family:Arial} .header{background:var(--owill-black);padding:12px} .header h1{color:var(--owill-red)} nav.tabs{display:flex;gap:6px;padding:10px;background:#222} nav.tabs button{background:#333;color:#fff;padding:8px;border-radius:6px;border:0} nav.tabs button.active{background:var(--owill-red)} .content{padding:16px} .tab-pane{display:none;background:#fff;color:#000;padding:12px;border-radius:8px} .tab-pane.active{display:block}