body{margin:0;font-family:Segoe UI,sans-serif;background:linear-gradient(180deg,#eef4ff 0%,#f8fafc 100%)}.brand{padding:24px;font-size:22px;font-weight:700;color:#1f2937}.topbar{background:rgba(255,255,255,.9);display:flex;justify-content:space-between;align-items:center;padding:0 24px;border-bottom:1px solid #e5e7eb}.content-shell{padding:24px}.login-shell{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top left,rgba(31,111,235,.18),transparent 30%),linear-gradient(160deg,#eff6ff 0%,#ffffff 50%,#f8fafc 100%)}.login-card{width:420px;border-radius:20px;box-shadow:0 30px 80px #0f172a1f}