body,html{margin:0;padding:0;height:100%}*{box-sizing:border-box}.pane{display:flex;min-height:100vh}.sidebar{width:260px;background:linear-gradient(180deg,#0b58d3,#0862c9);color:#fff;padding:24px}.sidebar h2{margin-top:0}.sidebar nav a{display:block;color:hsla(0,0%,100%,.9);margin:8px 0;text-decoration:none}.content{flex:1 1;padding:24px;background:#f6f8fb}.card{background:#fff;padding:16px;border-radius:8px;box-shadow:0 2px 6px rgba(0,0,0,.06)}.btn{background:#0b58d3;color:#fff;border:none;padding:8px 12px;border-radius:6px;cursor:pointer}.input{padding:8px;border:1px solid #ddd;border-radius:6px;width:100%}