.login-card { width: 100%; max-width: 410px; background: #fff; border-radius: 14px; box-shadow: var(--shadow-lg); overflow: hidden; }
.login-brand { padding: 26px 28px 0; text-align: center; }
.login-card .card-bd { padding: 22px 28px 26px; }
/* ---------- Responsive ---------- */
@media (max-width: 960px) {
.sidebar { transform: translateX(-100%); }
.sidebar.open { transform: none; box-shadow: var(--shadow-lg); }
.main { margin-left: 0; }
.menu-btn { display: inline-flex; }
.content { padding: 18px 14px 60px; }
===also check index.html structure===
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