.host-layout { display: flex; min-height: 100vh; }
.host-sidebar { width: 240px; background: #0c3d4a; color: white; flex-shrink: 0; display: flex; flex-direction: column; }
.host-sidebar .sidebar-brand { padding: 1.25rem; font-weight: 700; border-bottom: 1px solid rgba(255,255,255,0.1); }
.host-sidebar .sidebar-nav { flex: 1; padding: 1rem 0; }
.host-sidebar .sidebar-link { display: block; padding: 0.65rem 1.25rem; color: rgba(255,255,255,0.7); }
.host-sidebar .sidebar-link:hover { background: rgba(255,255,255,0.08); color: white; }
.host-sidebar .sidebar-footer { padding: 1rem; border-top: 1px solid rgba(255,255,255,0.1); }
.host-sidebar .sidebar-footer a { display: block; color: rgba(255,255,255,0.55); font-size: 0.85rem; margin-bottom: 0.35rem; }
.host-main { flex: 1; display: flex; flex-direction: column; background: #f4f8f7; }
.host-topbar { background: white; padding: 1rem 1.5rem; border-bottom: 1px solid #dce8e5; display: flex; justify-content: space-between; align-items: center; }
.host-content { padding: 1.5rem; flex: 1; }

.host-auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #082a33, #0c3d4a); }
.host-auth-card { background: white; border-radius: 16px; padding: 2.5rem; width: 100%; max-width: 420px; box-shadow: 0 20px 50px rgba(0,0,0,0.2); }
.host-auth-logo { display: block; text-align: center; font-size: 1.25rem; font-weight: 700; color: #0c3d4a; margin-bottom: 1.5rem; text-decoration: none; }
.host-auth-card h1 { font-size: 1.5rem; color: #0c3d4a; margin-bottom: 0.25rem; }
.auth-subtitle { color: #64748b; margin-bottom: 1.5rem; }
.auth-form .form-group { margin-bottom: 1rem; }
.auth-form label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.35rem; color: #475569; }
.auth-form input { width: 100%; padding: 0.7rem 0.9rem; border: 1px solid #dce8e5; border-radius: 10px; font-family: inherit; }
.auth-footer { text-align: center; margin-top: 1.25rem; font-size: 0.9rem; color: #64748b; }
.auth-footer a { color: #14b8a6; font-weight: 600; }

.alert { padding: 0.85rem 1rem; border-radius: 10px; margin-bottom: 1rem; }
.alert-success { background: #d1fae5; color: #065f46; }
.alert-error { background: #fee2e2; color: #991b1b; }

@media (max-width: 768px) {
    .host-layout { flex-direction: column; }
    .host-sidebar { width: 100%; }
}