:root{--whatsy-green: #25D366;--whatsy-green-dark: #128C7E;--whatsy-bg-gradient: linear-gradient(135deg, #25D366 0%, #128C7E 100%);--sidebar-width: 240px}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:#f6f6f7}.premium-sidebar{width:var(--sidebar-width);height:100vh;position:fixed;left:0;top:0;background:#fffc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-right:1px solid rgba(0,0,0,.05);display:flex;flex-direction:column;padding:1.5rem;box-sizing:border-box;z-index:1000;box-shadow:4px 0 20px #00000005}.sidebar-logo{font-size:1.5rem;font-weight:800;background:var(--whatsy-bg-gradient);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:2.5rem;display:flex;align-items:center;gap:.5rem}.nav-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:12px;text-decoration:none;color:#4a4a4a;font-weight:500;transition:all .2s ease;margin-bottom:.5rem}.nav-item:hover{background:#25d36614;color:var(--whatsy-green-dark);transform:translate(4px)}.nav-item.active{background:#25d3661f;color:var(--whatsy-green-dark);box-shadow:none;border:1px solid rgba(37,211,102,.2)}.main-content{margin-left:var(--sidebar-width);padding:2rem;min-height:100vh}.glass-card{background:#ffffffb3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.5);border-radius:20px;box-shadow:0 8px 32px #0000000d}